技术领域technical field
本实用新型涉及一种粒子冲击钻井PDC钻头，适用于硬地层和强研磨性地层钻井，属于石油钻井工程技术领域。The utility model relates to a PDC drill bit for particle impact drilling, which is suitable for drilling hard formations and strong abrasive formations, and belongs to the technical field of petroleum drilling engineering.
背景技术Background technique
我国大部分区块由于早期对中浅部地层油气资源的钻探开发，现在油田普遍进入开采的中后期（枯竭期），现如今，在深部硬地层以及复杂地质条件下找寻油气资源是目前陆地勘探开发的重要工作。在整个钻井过程中，地层的硬度以及钻进难度随着井深的增加呈指数递增。然而国内现阶段在硬和极硬、强研磨性地层钻井中存在通病，即，钻井速度慢、周期长，钻具寿命短，整体成本高。Due to the early drilling and development of oil and gas resources in the middle and shallow formations in most blocks in my country, oil fields are now generally entering the middle and late stages of exploitation (depletion period). Nowadays, finding oil and gas resources in deep hard formations and complex geological conditions is the current land exploration Important work for development. During the entire drilling process, the hardness of the formation and the difficulty of drilling increase exponentially with the increase of well depth. However, there are common problems in the drilling of hard and extremely hard and strongly abrasive formations in China at this stage, that is, the drilling speed is slow, the cycle is long, the life of the drilling tool is short, and the overall cost is high.
粒子冲击钻井技术是近年来兴起的一种有效提高硬和极硬、强研磨性地层钻进速度的高新技术。粒子冲击钻井系统主要包括三个组成部分：粒子注入系统、粒子回收系统和粒子冲击钻头。粒子冲击钻头作为粒子冲击钻井系统的重要组成部分，其目的是实现以粒子射流冲击破岩为主，钻头破岩为辅的效果。以高压钻井液为介质，将粒子和钻井液的均匀混合浆体从喷嘴喷射出来，形成能量高度集中的高速粒子射流，因粒子本身具有一定的质量和硬度，故具有良好的磨削、穿透、冲蚀能力，与常规水射流相比，粒子射流不仅能够降低破岩能耗及大大提高破岩能力，而且将射流的初始泵压大大降低。Particle impact drilling technology is a high-tech emerging in recent years that can effectively improve the drilling speed of hard and extremely hard and strongly abrasive formations. The particle impact drilling system mainly includes three components: particle injection system, particle recovery system and particle impact drill bit. The particle impact drill bit is an important part of the particle impact drilling system. Its purpose is to achieve the effect of particle jet impacting rock breaking mainly, and the drill bit breaking rock as a supplementary effect. Using high-pressure drilling fluid as the medium, the uniform mixed slurry of particles and drilling fluid is sprayed out from the nozzle to form a high-speed particle jet with highly concentrated energy. Because the particles themselves have a certain quality and hardness, they have good grinding and penetration , Erosion ability, compared with the conventional water jet, the particle jet can not only reduce the energy consumption of rock breaking and greatly improve the rock breaking ability, but also greatly reduce the initial pump pressure of the jet.
粒子冲击钻头的破岩方式是粒子射流破岩为主，机械破岩为辅，通过高压粒子射流冲击破岩形成体积破碎坑，并进一步对岩石进行破碎，钻头上的切削齿主要是用来切削井壁，保护钻头喷嘴和钻头本体，提高钻头的抗磨损能力。自该技术提出，经过一系列的室内和现场试验，对钻头内腔结构及外形进行优化，但现有的粒子冲击钻头依然存在以下缺陷：The rock-breaking method of the particle impact drill bit is mainly particle jet rock-breaking, supplemented by mechanical rock-breaking. The high-pressure particle jet impacts the rock-breaking rock to form a volume-breaking pit, and further breaks the rock. The cutting teeth on the drill bit are mainly used for cutting. The well wall protects the drill bit nozzle and the drill bit body and improves the wear resistance of the drill bit. Since this technology was proposed, after a series of indoor and field tests, the structure and shape of the inner cavity of the drill bit have been optimized, but the existing particle impact drill bits still have the following defects:
（1）喷嘴布置角度和位置不合理，形成的粒子射流无法实现井底全覆盖；(1) The nozzle arrangement angle and position are unreasonable, and the formed particle jet cannot achieve full coverage of the bottom of the well;
（2）喷嘴结构本身未进行优化，密集性差、扩散偏大、速度衰减偏高；(2) The nozzle structure itself is not optimized, with poor density, large diffusion, and high velocity attenuation;
（3）内腔喷嘴入口处及内腔形状未进行优化，内腔易出现涡流，磨削钻头体内表面；(3) The entrance of the inner cavity nozzle and the shape of the inner cavity have not been optimized, and the inner cavity is prone to eddy currents, which grind the internal surface of the drill bit;
（4）布齿结构不合理，刀翼设计不能完全配合喷嘴布置；(4) The tooth structure is unreasonable, and the blade design cannot fully match the nozzle arrangement;
（5）排屑槽结构过小，未进行优化设计。(5) The structure of the flute is too small and has not been optimized.
实用新型内容Utility model content
本实用新型的目的：本实用新型要解决的技术问题是改进现有技术所存在的缺陷，提供一种能够用于粒子冲击钻井过程中的粒子冲击钻井PDC钻头。The purpose of this utility model: the technical problem to be solved by this utility model is to improve the existing defects of the prior art and provide a particle impact drilling PDC bit that can be used in the particle impact drilling process.
本实用新型的特征：粒子冲击PDC钻头为五刀翼胎体PDC钻头，主要由钻头基体、钻头中心体、刀翼、切削齿、保径齿、排屑槽和喷嘴组成，钻头刀翼和钻头中心体联成一体，钻头上部为钻头基体，下部连接着钻头中心体，在中心体处分布五个刀翼，每两个刀翼之间有排屑槽，刀翼与刀翼之间存在一定角度，切削齿按一定规则分布在刀翼顶端表面，保径齿分布在刀翼外侧表面，后排加减震齿托,目的是提高钻头的抗冲击能力，在齿托里面加入金刚石聚晶，硬质合金块等。三种喷嘴按照次序分布实现对井底全覆盖；刀翼冠部轮廓采用短外锥，浅内锥多圆弧轮廓或短抛物线轮廓结构；布齿结构选择1613复合片作为主齿复合片实行中等密度布齿；刀翼形状采用螺旋刀翼。The utility model features: the particle impact PDC drill bit is a five-blade matrix PDC drill bit, which is mainly composed of a drill base body, a drill center body, a blade, a cutting tooth, a gauge tooth, a chip removal groove and a nozzle. The center body is integrated into one body. The upper part of the drill bit is the drill bit base body, and the lower part is connected to the drill bit center body. Five blades are distributed on the center body. There is a chip removal groove between each two blade wings. Angle, the cutting teeth are distributed on the top surface of the blade according to certain rules, the gauge teeth are distributed on the outer surface of the blade, and the rear row is equipped with a shock-absorbing tooth holder, the purpose is to improve the impact resistance of the drill bit, adding diamond polycrystalline in the tooth holder, Carbide blocks, etc. The three kinds of nozzles are distributed in order to achieve full coverage of the bottom of the well; the profile of the crown of the blade adopts a short outer cone, a shallow inner cone, a multi-arc profile or a short parabolic profile structure; the tooth structure chooses 1613 composite sheet as the main tooth composite sheet to implement medium density Cloth teeth; blade shape adopts spiral blade.
一种粒子冲击钻井用PDC钻头，包括钻头基体和钻头中心体，所述钻头中心体设置在钻头基体上部，所述钻头中心体外周按照力学平衡设置有一号长刀翼、二号短刀翼、三号短刀翼、四号长刀翼和五号短刀翼，所述一号长刀翼、二号短刀翼、三号短刀翼、四号长刀翼和五号短刀翼相邻之间设置有排屑槽，所述所述一号长刀翼、二号短刀翼、三号短刀翼、四号长刀翼和五号短刀翼的刀翼顶端外表面设置有多个切削齿，所述一号长刀翼、二号短刀翼、三号短刀翼、四号长刀翼和五号短刀翼的到翼顶端外表面设置有多个保径齿。A PDC drill bit for particle impact drilling, comprising a drill bit base body and a drill bit center body, the drill bit center body is arranged on the upper part of the drill bit base body, and the periphery of the drill bit center body is provided with No. 1 long blade, No. 2 short blade, and No. 3 short blade according to mechanical balance. No. 1 short blade, No. 4 long blade and No. 5 short blade, the No. 1 long blade, No. 2 short blade, No. 3 short blade, No. 4 long blade and No. 5 short blade are provided with row Chip flutes, the outer surfaces of the blade tops of the No. 1 long blade, No. 2 short blade, No. 3 short blade, No. 4 long blade and No. 5 short blade are provided with a plurality of cutting teeth. The outer surfaces of the long blades, No. 2 short blades, No. 3 short blades, No. 4 long blades and No. 5 short blades are provided with a plurality of gage teeth on the outer surface of the wing tip.
所述钻头中心体上表面设置有中心喷嘴、第一中间喷嘴、第二中间喷嘴、第一边喷嘴和第二边喷嘴。The upper surface of the central body of the drill bit is provided with a central nozzle, a first middle nozzle, a second middle nozzle, a first side nozzle and a second side nozzle.
所述一号长刀翼为直线双圆弧型，其布置4个保径齿和6个切削齿。The No. 1 long blade is a straight double-arc shape, and it is arranged with 4 gauge teeth and 6 cutting teeth.
所述二号短刀翼为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿和4个切削齿。The No. 2 short blade is straight and double-arc, and the outer surface of the top of the blade is provided with 4 gauge teeth and 4 cutting teeth.
所述三号短刀翼为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿和4个切削齿。The No. 3 short blade is a straight double arc shape, and the outer surface of the top end of the blade is provided with 4 gauge teeth and 4 cutting teeth.
所述四号长刀翼为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿和7个切削齿。The No. 4 long blade is a straight double arc shape, and the outer surface of the top end of the blade is provided with 4 gauge teeth and 7 cutting teeth.
所述五号短刀翼为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿和5个切削齿。The No. 5 short blade is straight and double-arc, and the outer surface of the top of the blade is provided with 4 gauge teeth and 5 cutting teeth.
所述中心喷嘴为圆锥形，位于钻头中心体的中心位置。The central nozzle is conical and located at the center of the central body of the drill bit.
所述第一中间喷嘴和第二中间喷嘴为圆锥形，所述第一中间喷嘴位于钻头中心体的左下方，述第二中间喷嘴位于钻头中心体的右上方。The first middle nozzle and the second middle nozzle are conical, the first middle nozzle is located at the lower left of the center body of the drill bit, and the second middle nozzle is located at the upper right of the center body of the drill bit.
所述第一边喷嘴和第二边喷嘴为圆锥形，所述第一边喷嘴位于钻头中心体的右下方，所述所述第二边喷嘴位于钻头中心体的左上方。The nozzle on the first side and the nozzle on the second side are conical, the nozzle on the first side is located at the lower right of the central body of the drill bit, and the nozzle at the second side is located at the upper left of the central body of the drill bit.
本实用新型具有以下显著效果：The utility model has the following remarkable effects:
1.本实用新型使用粒子冲击PDC钻头以粒子射流破岩为主，刀翼机械破岩为辅，粒子射流破岩极大地提高对硬地层和强研磨性地层的钻进速度，并且在极端情况下，一旦粒子射流无法破岩，利用钻头本身进行机械破岩也存在可行性，针对硬地层破岩效率更高。1. The utility model uses the particle impact PDC drill bit to break the rock mainly by the particle jet, supplemented by the mechanical rock breaking of the blade. Under the circumstances, once the particle jet cannot break the rock, it is also feasible to use the drill bit itself to break the rock mechanically, and the rock breaking efficiency is higher for hard formations.
2.本实用新型在提高破岩效率的同时使得破岩更加可靠安全。2. The utility model makes rock breaking more reliable and safe while improving the rock breaking efficiency.
3.本实用新型布齿架构合理，刀翼设计能完全配合喷嘴的布置。3. The utility model has a reasonable tooth structure, and the design of the blades can fully match the arrangement of the nozzles.
4.本实用新型对喷嘴结构进行了优化，使得喷嘴衰减的速度变低，增加了工作效率。4. The utility model optimizes the structure of the nozzle, so that the speed of nozzle attenuation becomes lower and the work efficiency is increased.
附图说明：Description of drawings:
图1为本实用新型的整体装置的侧视图；Fig. 1 is the side view of the integral device of the present utility model;
图2为本实用新型的整体装置的俯视图；Fig. 2 is the top view of the overall device of the present utility model;
图中：1.钻头基体，2.钻头中心体，3.钻头接头，4.一号刀翼，5.二号刀翼，6.三号刀翼，7.四号刀翼，8.五号刀翼，9.切削齿，10.保径齿，11.中心喷嘴，12-1.第一中间喷嘴，12-2.第二中间喷嘴，13-1.第一边喷嘴，13-2.第二边喷嘴，14.排屑槽。In the figure: 1. Drill base body, 2. Drill center body, 3. Drill joint, 4. No. 1 blade, 5. No. 2 blade, 6. No. 3 blade, 7. No. 4 blade, 8. 5 No. blade, 9. Cutting teeth, 10. Gauge teeth, 11. Center nozzle, 12-1. First middle nozzle, 12-2. Second middle nozzle, 13-1. First side nozzle, 13-2 . Second side nozzle, 14. Flutes.
具体实施方式：Detailed ways:
结合附图和具体实施方式对本实用新型作进一步详细描述。The utility model is further described in detail in conjunction with the accompanying drawings and specific embodiments.
如图1所示As shown in Figure 1
实施例1：Example 1:
一种粒子冲击钻井用PDC钻头，包括钻头基体1和钻头中心体2，所述钻头中心体2设置在钻头基体1上部，所述钻头中心体2外周按照力学平衡设置有一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8相邻之间设置有排屑槽14，所述所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的刀翼顶端外表面设置有多个切削齿9，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的到翼顶端外表面设置有多个保径齿10。A PDC drill bit for particle impact drilling, comprising a drill base body 1 and a drill bit central body 2, the drill bit central body 2 is arranged on the upper part of the drill bit base body 1, and the outer periphery of the drill bit central body 2 is provided with a No. 1 long blade 4 according to mechanical balance, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8, No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, and No. 4 long blade Chip flutes 14 are arranged between wings 7 and No. 5 short blades 8. The No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and the fifth blade A plurality of cutting teeth 9 are arranged on the top outer surface of the blade of the No. 1 short blade 8, and the No. 1 long blade 4, the No. 2 short blade 5, the No. 3 short blade 6, the No. 4 long blade 7 and the No. 5 short blade 8 is provided with a plurality of gage teeth 10 on the outer surface of the wing tip.
所述钻头中心体2上表面设置有中心喷嘴11、第一中间喷嘴12-1、第二中间喷嘴12-2、第一边喷嘴13-1和第二边喷嘴13-2。The upper surface of the drill central body 2 is provided with a central nozzle 11, a first middle nozzle 12-1, a second middle nozzle 12-2, a first side nozzle 13-1 and a second side nozzle 13-2.
本实用新型的粒子冲击PDC钻头的工作原理为：利用中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2实现对井底的全覆盖，利用高压射流携带粒子对地底岩石形成“体积破碎”，通过排屑槽14将岩屑排出，保径齿10起修整井壁作用，并且在中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2无法实现破岩的情况下，刀翼与切削齿9可完成机械破岩。The working principle of the particle impact PDC drill bit of the present utility model is: utilize the central nozzle 11, the first middle nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 to realize Full coverage of the bottom of the well, the use of high-pressure jets to carry particles to form "volume crushing" on the underground rocks, the cuttings are discharged through the chip removal groove 14, the gauge teeth 10 play the role of repairing the well wall, and the central nozzle 11, the first middle When the nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 cannot break the rock, the blade and the cutting teeth 9 can complete the mechanical rock breaking.
为实现五个喷嘴形成的射流能够对井底实现全覆盖，喷嘴布置方式所述如下：In order to realize that the jets formed by the five nozzles can fully cover the bottom of the well, the arrangement of the nozzles is described as follows:
（1）中心喷嘴11出口中心距离钻头轴线距离为H，则第一中间喷嘴12-1出口中心距离钻头轴线距离为1.16H，第二中间喷嘴12-2出口中心距离钻头轴线距离为1.52H，第一边喷嘴13-1出口中心距离钻头轴线距离为2.75H，第二边喷嘴13-2出口中心距离钻头轴线距离为3.21H；(1) The distance between the center of the outlet of the central nozzle 11 and the axis of the drill bit is H, the distance between the center of the outlet of the first intermediate nozzle 12-1 and the axis of the drill bit is 1.16H, and the distance between the center of the outlet of the second intermediate nozzle 12-2 and the axis of the drill bit is 1.52H. The distance between the outlet center of the first side nozzle 13-1 and the drill bit axis is 2.75H, and the distance between the outlet center of the second side nozzle 13-2 and the drill bit axis is 3.21H;
（2）中心喷嘴11中轴线与钻头轴线的夹角为α，则第一中间喷嘴12-1中轴线与钻头轴线的夹角为0.54α，第二中间喷嘴12-2中轴线与钻头轴线的夹角为0.38α，第一边喷嘴13-1中轴线与钻头轴线的夹角为1.56α，第二边喷嘴13-2中轴线与钻头轴线的夹角为3.79α。(2) The angle between the central axis of the central nozzle 11 and the axis of the drill bit is α, the angle between the central axis of the first intermediate nozzle 12-1 and the axis of the drill bit is 0.54α, and the angle between the central axis of the second intermediate nozzle 12-2 and the axis of the drill bit The included angle is 0.38α, the included angle between the central axis of the first side nozzle 13-1 and the drill bit axis is 1.56α, and the included angle between the central axis of the second side nozzle 13-2 and the drill bit axis is 3.79α.
实施例2：Example 2:
一种粒子冲击钻井用PDC钻头，包括钻头基体1和钻头中心体2，所述钻头中心体2设置在钻头基体1上部，所述钻头中心体2外周按照力学平衡设置有一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8相邻之间设置有排屑槽14，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的刀翼顶端外表面设置有多个切削齿9，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的到翼顶端外表面设置有多个保径齿10。A PDC drill bit for particle impact drilling, comprising a drill base body 1 and a drill bit central body 2, the drill bit central body 2 is arranged on the upper part of the drill bit base body 1, and the outer periphery of the drill bit central body 2 is provided with a No. 1 long blade 4 according to mechanical balance, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8, No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, and No. 4 long blade Chip flutes 14 are arranged between wings 7 and No. 5 short blades 8. The No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade The top outer surface of the wing 8 is provided with a plurality of cutting teeth 9, the No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8 A plurality of gage teeth 10 are arranged on the outer surface of the wing tip.
所述钻头中心体2上表面设置有中心喷嘴11、第一中间喷嘴12-1、第二中间喷嘴12-2、第一边喷嘴13-1和第二边喷嘴13-2。The upper surface of the drill central body 2 is provided with a central nozzle 11, a first middle nozzle 12-1, a second middle nozzle 12-2, a first side nozzle 13-1 and a second side nozzle 13-2.
所述一号长刀翼4为直线双圆弧型，其布置4个保径齿10和6个切削齿9。The No. 1 long blade 4 is a straight double arc shape, and four gauge teeth 10 and six cutting teeth 9 are arranged on it.
所述二号短刀翼5为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 2 short blade 5 is straight and double-arc, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
本实用新型的粒子冲击PDC钻头的工作原理为：利用中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2实现对井底的全覆盖，利用高压射流携带粒子对地底岩石形成“体积破碎”，通过排屑槽14将岩屑排出，保径齿10起修整井壁作用，并且在中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2无法实现破岩的情况下，刀翼与切削齿9可完成机械破岩。The working principle of the particle impact PDC drill bit of the present utility model is: utilize the central nozzle 11, the first middle nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 to realize Full coverage of the bottom of the well, the use of high-pressure jets to carry particles to form "volume crushing" on the underground rocks, the cuttings are discharged through the chip removal groove 14, the gauge teeth 10 play the role of repairing the well wall, and the central nozzle 11, the first middle When the nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 cannot break the rock, the blade and the cutting teeth 9 can complete the mechanical rock breaking.
为实现五个喷嘴形成的射流能够对井底实现全覆盖，喷嘴布置方式所述如下：In order to realize that the jets formed by the five nozzles can fully cover the bottom of the well, the arrangement of the nozzles is described as follows:
（1）中心喷嘴11出口中心距离钻头轴线距离为H，则第一中间喷嘴12-1出口中心距离钻头轴线距离为1.16H，第二中间喷嘴12-2出口中心距离钻头轴线距离为1.52H，第一边喷嘴13-1出口中心距离钻头轴线距离为2.75H，第二边喷嘴13-2出口中心距离钻头轴线距离为3.21H；(1) The distance between the center of the outlet of the central nozzle 11 and the axis of the drill bit is H, the distance between the center of the outlet of the first intermediate nozzle 12-1 and the axis of the drill bit is 1.16H, and the distance between the center of the outlet of the second intermediate nozzle 12-2 and the axis of the drill bit is 1.52H. The distance between the outlet center of the first side nozzle 13-1 and the drill bit axis is 2.75H, and the distance between the outlet center of the second side nozzle 13-2 and the drill bit axis is 3.21H;
（2）中心喷嘴11中轴线与钻头轴线的夹角为α，则第一中间喷嘴12-1中轴线与钻头轴线的夹角为0.54α，第二中间喷嘴12-2中轴线与钻头轴线的夹角为0.38α，第一边喷嘴13-1中轴线与钻头轴线的夹角为1.56α，第二边喷嘴13-2中轴线与钻头轴线的夹角为3.79α。(2) The angle between the central axis of the central nozzle 11 and the axis of the drill bit is α, the angle between the central axis of the first intermediate nozzle 12-1 and the axis of the drill bit is 0.54α, and the angle between the central axis of the second intermediate nozzle 12-2 and the axis of the drill bit The included angle is 0.38α, the included angle between the central axis of the first side nozzle 13-1 and the drill bit axis is 1.56α, and the included angle between the central axis of the second side nozzle 13-2 and the drill bit axis is 3.79α.
实施例3：Example 3:
一种粒子冲击钻井用PDC钻头，包括钻头基体1和钻头中心体2，所述钻头中心体2设置在钻头基体1上部，所述钻头中心体2外周按照力学平衡设置有一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8相邻之间设置有排屑槽14，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的刀翼顶端外表面设置有多个切削齿9，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的到翼顶端外表面设置有多个保径齿10。A PDC drill bit for particle impact drilling, comprising a drill base body 1 and a drill bit central body 2, the drill bit central body 2 is arranged on the upper part of the drill bit base body 1, and the outer periphery of the drill bit central body 2 is provided with a No. 1 long blade 4 according to mechanical balance, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8, No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, and No. 4 long blade Chip flutes 14 are arranged between wings 7 and No. 5 short blades 8. The No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade The top outer surface of the wing 8 is provided with a plurality of cutting teeth 9, the No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8 A plurality of gage teeth 10 are arranged on the outer surface of the wing tip.
所述钻头中心体2上表面设置有中心喷嘴11、第一中间喷嘴12-1、第二中间喷嘴12-2、第一边喷嘴13-1和第二边喷嘴13-2。The upper surface of the drill central body 2 is provided with a central nozzle 11, a first middle nozzle 12-1, a second middle nozzle 12-2, a first side nozzle 13-1 and a second side nozzle 13-2.
所述中心喷嘴11为圆锥形，位于钻头中心体2的中心位置。The central nozzle 11 is conical and located at the center of the central body 2 of the drill bit.
所述第一中间喷嘴12-1和第二中间喷嘴12-2为圆锥形，所述第一中间喷嘴12-1位于钻头中心体2的左下方，述第二中间喷嘴12-2位于钻头中心体2的右上方。The first intermediate nozzle 12-1 and the second intermediate nozzle 12-2 are conical, the first intermediate nozzle 12-1 is located at the lower left of the center body 2 of the drill bit, and the second intermediate nozzle 12-2 is located at the center of the drill bit top right of body 2.
所述第一边喷嘴13-1和第二边喷嘴13-2为圆锥形，所述第一边喷嘴13-1位于钻头中心体2的右下方，所述所述第二边喷嘴13-2位于钻头中心体2的左上方。The first side nozzle 13-1 and the second side nozzle 13-2 are conical, the first side nozzle 13-1 is located at the lower right of the drill center body 2, and the second side nozzle 13-2 Located on the upper left of the center body 2 of the drill bit.
本实用新型的粒子冲击PDC钻头的工作原理为：利用中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2实现对井底的全覆盖，利用高压射流携带粒子对地底岩石形成“体积破碎”，通过排屑槽14将岩屑排出，保径齿10起修整井壁作用，并且在中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2无法实现破岩的情况下，刀翼与切削齿9可完成机械破岩。The working principle of the particle impact PDC drill bit of the present utility model is: utilize the central nozzle 11, the first middle nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 to realize Full coverage of the bottom of the well, the use of high-pressure jets to carry particles to form "volume crushing" on the underground rocks, the cuttings are discharged through the chip removal groove 14, the gauge teeth 10 play the role of repairing the well wall, and the central nozzle 11, the first middle When the nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 cannot break the rock, the blade and the cutting teeth 9 can complete the mechanical rock breaking.
为实现五个喷嘴形成的射流能够对井底实现全覆盖，喷嘴布置方式所述如下：In order to realize that the jets formed by the five nozzles can fully cover the bottom of the well, the arrangement of the nozzles is described as follows:
（1）中心喷嘴11出口中心距离钻头轴线距离为H，则第一中间喷嘴12-1出口中心距离钻头轴线距离为1.16H，第二中间喷嘴12-2出口中心距离钻头轴线距离为1.52H，第一边喷嘴13-1出口中心距离钻头轴线距离为2.75H，第二边喷嘴13-2出口中心距离钻头轴线距离为3.21H；(1) The distance between the center of the outlet of the central nozzle 11 and the axis of the drill bit is H, the distance between the center of the outlet of the first intermediate nozzle 12-1 and the axis of the drill bit is 1.16H, and the distance between the center of the outlet of the second intermediate nozzle 12-2 and the axis of the drill bit is 1.52H. The distance between the outlet center of the first side nozzle 13-1 and the drill bit axis is 2.75H, and the distance between the outlet center of the second side nozzle 13-2 and the drill bit axis is 3.21H;
（2）中心喷嘴11中轴线与钻头轴线的夹角为α，则第一中间喷嘴12-1中轴线与钻头轴线的夹角为0.54α，第二中间喷嘴12-2中轴线与钻头轴线的夹角为0.38α，第一边喷嘴13-1中轴线与钻头轴线的夹角为1.56α，第二边喷嘴13-2中轴线与钻头轴线的夹角为3.79α。(2) The angle between the central axis of the central nozzle 11 and the axis of the drill bit is α, the angle between the central axis of the first intermediate nozzle 12-1 and the axis of the drill bit is 0.54α, and the angle between the central axis of the second intermediate nozzle 12-2 and the axis of the drill bit The included angle is 0.38α, the included angle between the central axis of the first side nozzle 13-1 and the drill bit axis is 1.56α, and the included angle between the central axis of the second side nozzle 13-2 and the drill bit axis is 3.79α.
实施例4：Example 4:
一种粒子冲击钻井用PDC钻头，包括钻头基体1和钻头中心体2，所述钻头中心体2设置在钻头基体1上部，所述钻头中心体2外周按照力学平衡设置有一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8相邻之间设置有排屑槽14，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的刀翼顶端外表面设置有多个切削齿9，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的到翼顶端外表面设置有多个保径齿10。A PDC drill bit for particle impact drilling, comprising a drill base body 1 and a drill bit central body 2, the drill bit central body 2 is arranged on the upper part of the drill bit base body 1, and the outer periphery of the drill bit central body 2 is provided with a No. 1 long blade 4 according to mechanical balance, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8, No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, and No. 4 long blade Chip flutes 14 are arranged between wings 7 and No. 5 short blades 8. The No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade The top outer surface of the wing 8 is provided with a plurality of cutting teeth 9, the No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8 A plurality of gage teeth 10 are arranged on the outer surface of the wing tip.
所述钻头中心体2上表面设置有中心喷嘴11、第一中间喷嘴12-1、第二中间喷嘴12-2、第一边喷嘴13-1和第二边喷嘴13-2。The upper surface of the drill central body 2 is provided with a central nozzle 11, a first middle nozzle 12-1, a second middle nozzle 12-2, a first side nozzle 13-1 and a second side nozzle 13-2.
所述一号长刀翼4为直线双圆弧型，其布置4个保径齿10和6个切削齿9。The No. 1 long blade 4 is a straight double arc shape, and four gauge teeth 10 and six cutting teeth 9 are arranged on it.
所述二号短刀翼5为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 2 short blade 5 is straight and double-arc, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述三号短刀翼6为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 3 short blade 6 is a straight double arc type, and the outer surface of the top end of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述四号长刀翼7为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和7个切削齿9。The No. 4 long blade 7 is a straight double arc type, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 7 cutting teeth 9 .
所述第一中间喷嘴12-1和第二中间喷嘴12-2为圆锥形，所述第一中间喷嘴12-1位于钻头中心体2的左下方，述第二中间喷嘴12-2位于钻头中心体2的右上方。The first intermediate nozzle 12-1 and the second intermediate nozzle 12-2 are conical, the first intermediate nozzle 12-1 is located at the lower left of the center body 2 of the drill bit, and the second intermediate nozzle 12-2 is located at the center of the drill bit top right of body 2.
所述第一边喷嘴13-1和第二边喷嘴13-2为圆锥形，所述第一边喷嘴13-1位于钻头中心体2的右下方，所述所述第二边喷嘴13-2位于钻头中心体2的左上方。The first side nozzle 13-1 and the second side nozzle 13-2 are conical, the first side nozzle 13-1 is located at the lower right of the drill center body 2, and the second side nozzle 13-2 Located on the upper left of the center body 2 of the drill bit.
本实用新型的粒子冲击PDC钻头的工作原理为：利用中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2实现对井底的全覆盖，利用高压射流携带粒子对地底岩石形成“体积破碎”，通过排屑槽14将岩屑排出，保径齿10起修整井壁作用，并且在中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2无法实现破岩的情况下，刀翼与切削齿9可完成机械破岩。The working principle of the particle impact PDC drill bit of the present utility model is: utilize the central nozzle 11, the first middle nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 to realize Full coverage of the bottom of the well, the use of high-pressure jets to carry particles to form "volume crushing" on the underground rocks, the cuttings are discharged through the chip removal groove 14, the gauge teeth 10 play the role of repairing the well wall, and the central nozzle 11, the first middle When the nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 cannot break the rock, the blade and the cutting teeth 9 can complete the mechanical rock breaking.
为实现五个喷嘴形成的射流能够对井底实现全覆盖，喷嘴布置方式所述如下：In order to realize that the jets formed by the five nozzles can fully cover the bottom of the well, the arrangement of the nozzles is described as follows:
（1）中心喷嘴11出口中心距离钻头轴线距离为H，则第一中间喷嘴12-1出口中心距离钻头轴线距离为1.16H，第二中间喷嘴12-2出口中心距离钻头轴线距离为1.52H，第一边喷嘴13-1出口中心距离钻头轴线距离为2.75H，第二边喷嘴13-2出口中心距离钻头轴线距离为3.21H；(1) The distance between the center of the outlet of the central nozzle 11 and the axis of the drill bit is H, the distance between the center of the outlet of the first intermediate nozzle 12-1 and the axis of the drill bit is 1.16H, and the distance between the center of the outlet of the second intermediate nozzle 12-2 and the axis of the drill bit is 1.52H. The distance between the outlet center of the first side nozzle 13-1 and the drill bit axis is 2.75H, and the distance between the outlet center of the second side nozzle 13-2 and the drill bit axis is 3.21H;
（2）中心喷嘴11中轴线与钻头轴线的夹角为α，则第一中间喷嘴12-1中轴线与钻头轴线的夹角为0.54α，第二中间喷嘴12-2中轴线与钻头轴线的夹角为0.38α，第一边喷嘴13-1中轴线与钻头轴线的夹角为1.56α，第二边喷嘴13-2中轴线与钻头轴线的夹角为3.79α。(2) The angle between the central axis of the central nozzle 11 and the axis of the drill bit is α, the angle between the central axis of the first intermediate nozzle 12-1 and the axis of the drill bit is 0.54α, and the angle between the central axis of the second intermediate nozzle 12-2 and the axis of the drill bit The included angle is 0.38α, the included angle between the central axis of the first side nozzle 13-1 and the drill bit axis is 1.56α, and the included angle between the central axis of the second side nozzle 13-2 and the drill bit axis is 3.79α.
实施例5：Example 5:
一种粒子冲击钻井用PDC钻头，包括钻头基体1和钻头中心体2，所述钻头中心体2设置在钻头基体1上部，所述钻头中心体2外周按照力学平衡设置有一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8相邻之间设置有排屑槽14，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的刀翼顶端外表面设置有多个切削齿9，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的到翼顶端外表面设置有多个保径齿10。A PDC drill bit for particle impact drilling, comprising a drill base body 1 and a drill bit central body 2, the drill bit central body 2 is arranged on the upper part of the drill bit base body 1, and the outer periphery of the drill bit central body 2 is provided with a No. 1 long blade 4 according to mechanical balance, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8, No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, and No. 4 long blade Chip flutes 14 are arranged between wings 7 and No. 5 short blades 8. The No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade The top outer surface of the wing 8 is provided with a plurality of cutting teeth 9, the No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8 A plurality of gage teeth 10 are arranged on the outer surface of the wing tip.
所述钻头中心体2上表面设置有中心喷嘴11、第一中间喷嘴12-1、第二中间喷嘴12-2、第一边喷嘴13-1和第二边喷嘴13-2。The upper surface of the drill central body 2 is provided with a central nozzle 11, a first middle nozzle 12-1, a second middle nozzle 12-2, a first side nozzle 13-1 and a second side nozzle 13-2.
所述一号长刀翼4为直线双圆弧型，其布置4个保径齿10和6个切削齿9。The No. 1 long blade 4 is a straight double arc shape, and four gauge teeth 10 and six cutting teeth 9 are arranged on it.
所述二号短刀翼5为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 2 short blade 5 is straight and double-arc, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述三号短刀翼6为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 3 short blade 6 is a straight double arc type, and the outer surface of the top end of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述四号长刀翼7为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和7个切削齿9。The No. 4 long blade 7 is a straight double arc type, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 7 cutting teeth 9 .
所述五号短刀翼8为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和5个切削齿9。The No. 5 short blade 8 is a straight double arc type, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 5 cutting teeth 9 .
本实用新型的粒子冲击PDC钻头的工作原理为：利用中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2实现对井底的全覆盖，利用高压射流携带粒子对地底岩石形成“体积破碎”，通过排屑槽14将岩屑排出，保径齿10起修整井壁作用，并且在中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2无法实现破岩的情况下，刀翼与切削齿9可完成机械破岩。The working principle of the particle impact PDC drill bit of the present utility model is: utilize the central nozzle 11, the first middle nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 to realize Full coverage of the bottom of the well, the use of high-pressure jets to carry particles to form "volume crushing" on the underground rocks, the cuttings are discharged through the chip removal groove 14, the gauge teeth 10 play the role of repairing the well wall, and the central nozzle 11, the first middle When the nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 cannot break the rock, the blade and the cutting teeth 9 can complete the mechanical rock breaking.
为实现五个喷嘴形成的射流能够对井底实现全覆盖，喷嘴布置方式所述如下：In order to realize that the jets formed by the five nozzles can fully cover the bottom of the well, the arrangement of the nozzles is described as follows:
（1）中心喷嘴11出口中心距离钻头轴线距离为H，则第一中间喷嘴12-1出口中心距离钻头轴线距离为1.16H，第二中间喷嘴12-2出口中心距离钻头轴线距离为1.52H，第一边喷嘴13-1出口中心距离钻头轴线距离为2.75H，第二边喷嘴13-2出口中心距离钻头轴线距离为3.21H；(1) The distance between the center of the outlet of the central nozzle 11 and the axis of the drill bit is H, the distance between the center of the outlet of the first intermediate nozzle 12-1 and the axis of the drill bit is 1.16H, and the distance between the center of the outlet of the second intermediate nozzle 12-2 and the axis of the drill bit is 1.52H. The distance between the outlet center of the first side nozzle 13-1 and the drill bit axis is 2.75H, and the distance between the outlet center of the second side nozzle 13-2 and the drill bit axis is 3.21H;
（2）中心喷嘴11中轴线与钻头轴线的夹角为α，则第一中间喷嘴12-1中轴线与钻头轴线的夹角为0.54α，第二中间喷嘴12-2中轴线与钻头轴线的夹角为0.38α，第一边喷嘴13-1中轴线与钻头轴线的夹角为1.56α，第二边喷嘴13-2中轴线与钻头轴线的夹角为3.79α。(2) The angle between the central axis of the central nozzle 11 and the axis of the drill bit is α, the angle between the central axis of the first intermediate nozzle 12-1 and the axis of the drill bit is 0.54α, and the angle between the central axis of the second intermediate nozzle 12-2 and the axis of the drill bit The included angle is 0.38α, the included angle between the central axis of the first side nozzle 13-1 and the drill bit axis is 1.56α, and the included angle between the central axis of the second side nozzle 13-2 and the drill bit axis is 3.79α.
实施例6：Embodiment 6:
一种粒子冲击钻井用PDC钻头，包括钻头基体1和钻头中心体2，所述钻头中心体2设置在钻头基体1上部，所述钻头中心体2外周按照力学平衡设置有一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8相邻之间设置有排屑槽14，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的刀翼顶端外表面设置有多个切削齿9，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的到翼顶端外表面设置有多个保径齿10。A PDC drill bit for particle impact drilling, comprising a drill base body 1 and a drill bit central body 2, the drill bit central body 2 is arranged on the upper part of the drill bit base body 1, and the outer periphery of the drill bit central body 2 is provided with a No. 1 long blade 4 according to mechanical balance, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8, No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, and No. 4 long blade Chip flutes 14 are arranged between wings 7 and No. 5 short blades 8. The No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade The top outer surface of the wing 8 is provided with a plurality of cutting teeth 9, the No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8 A plurality of gage teeth 10 are arranged on the outer surface of the wing tip.
所述钻头中心体2上表面设置有中心喷嘴11、第一中间喷嘴12-1、第二中间喷嘴12-2、第一边喷嘴13-1和第二边喷嘴13-2。The upper surface of the drill central body 2 is provided with a central nozzle 11, a first middle nozzle 12-1, a second middle nozzle 12-2, a first side nozzle 13-1 and a second side nozzle 13-2.
所述一号长刀翼4为直线双圆弧型，其布置4个保径齿10和6个切削齿9。The No. 1 long blade 4 is a straight double arc shape, and four gauge teeth 10 and six cutting teeth 9 are arranged on it.
所述二号短刀翼5为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 2 short blade 5 is straight and double-arc, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述三号短刀翼6为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 3 short blade 6 is a straight double arc type, and the outer surface of the top end of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述四号长刀翼7为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和7个切削齿9。The No. 4 long blade 7 is a straight double arc type, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 7 cutting teeth 9 .
所述五号短刀翼8为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和5个切削齿9。The No. 5 short blade 8 is a straight double arc type, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 5 cutting teeth 9 .
所述中心喷嘴11为圆锥形，位于钻头中心体2的中心位置。The central nozzle 11 is conical and located at the center of the central body 2 of the drill bit.
本实用新型的粒子冲击PDC钻头的工作原理为：利用中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2实现对井底的全覆盖，利用高压射流携带粒子对地底岩石形成“体积破碎”，通过排屑槽14将岩屑排出，保径齿10起修整井壁作用，并且在中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2无法实现破岩的情况下，刀翼与切削齿9可完成机械破岩。The working principle of the particle impact PDC drill bit of the present utility model is: utilize the central nozzle 11, the first middle nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 to realize Full coverage of the bottom of the well, the use of high-pressure jets to carry particles to form "volume crushing" on the underground rocks, the cuttings are discharged through the chip removal groove 14, the gauge teeth 10 play the role of repairing the well wall, and the central nozzle 11, the first middle When the nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 cannot break the rock, the blade and the cutting teeth 9 can complete the mechanical rock breaking.
为实现五个喷嘴形成的射流能够对井底实现全覆盖，喷嘴布置方式所述如下：In order to realize that the jets formed by the five nozzles can fully cover the bottom of the well, the arrangement of the nozzles is described as follows:
（1）中心喷嘴11出口中心距离钻头轴线距离为H，则第一中间喷嘴12-1出口中心距离钻头轴线距离为1.16H，第二中间喷嘴12-2出口中心距离钻头轴线距离为1.52H，第一边喷嘴13-1出口中心距离钻头轴线距离为2.75H，第二边喷嘴13-2出口中心距离钻头轴线距离为3.21H；(1) The distance between the center of the outlet of the central nozzle 11 and the axis of the drill bit is H, the distance between the center of the outlet of the first intermediate nozzle 12-1 and the axis of the drill bit is 1.16H, and the distance between the center of the outlet of the second intermediate nozzle 12-2 and the axis of the drill bit is 1.52H. The distance between the outlet center of the first side nozzle 13-1 and the drill bit axis is 2.75H, and the distance between the outlet center of the second side nozzle 13-2 and the drill bit axis is 3.21H;
（2）中心喷嘴11中轴线与钻头轴线的夹角为α，则第一中间喷嘴12-1中轴线与钻头轴线的夹角为0.54α，第二中间喷嘴12-2中轴线与钻头轴线的夹角为0.38α，第一边喷嘴13-1中轴线与钻头轴线的夹角为1.56α，第二边喷嘴13-2中轴线与钻头轴线的夹角为3.79α。(2) The angle between the central axis of the central nozzle 11 and the axis of the drill bit is α, the angle between the central axis of the first intermediate nozzle 12-1 and the axis of the drill bit is 0.54α, and the angle between the central axis of the second intermediate nozzle 12-2 and the axis of the drill bit The included angle is 0.38α, the included angle between the central axis of the first side nozzle 13-1 and the drill bit axis is 1.56α, and the included angle between the central axis of the second side nozzle 13-2 and the drill bit axis is 3.79α.
实施例7：Embodiment 7:
一种粒子冲击钻井用PDC钻头，包括钻头基体1和钻头中心体2，所述钻头中心体2设置在钻头基体1上部，所述钻头中心体2外周按照力学平衡设置有一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8相邻之间设置有排屑槽14，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的刀翼顶端外表面设置有多个切削齿9，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的到翼顶端外表面设置有多个保径齿10。A PDC drill bit for particle impact drilling, comprising a drill base body 1 and a drill bit central body 2, the drill bit central body 2 is arranged on the upper part of the drill bit base body 1, and the outer periphery of the drill bit central body 2 is provided with a No. 1 long blade 4 according to mechanical balance, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8, No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, and No. 4 long blade Chip flutes 14 are arranged between wings 7 and No. 5 short blades 8. The No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade The top outer surface of the wing 8 is provided with a plurality of cutting teeth 9, the No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8 A plurality of gage teeth 10 are arranged on the outer surface of the wing tip.
所述钻头中心体2上表面设置有中心喷嘴11、第一中间喷嘴12-1、第二中间喷嘴12-2、第一边喷嘴13-1和第二边喷嘴13-2。The upper surface of the drill central body 2 is provided with a central nozzle 11, a first middle nozzle 12-1, a second middle nozzle 12-2, a first side nozzle 13-1 and a second side nozzle 13-2.
所述一号长刀翼4为直线双圆弧型，其布置4个保径齿10和6个切削齿9。The No. 1 long blade 4 is a straight double arc shape, and four gauge teeth 10 and six cutting teeth 9 are arranged on it.
所述二号短刀翼5为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 2 short blade 5 is straight and double-arc, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述三号短刀翼6为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 3 short blade 6 is a straight double arc type, and the outer surface of the top end of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述四号长刀翼7为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和7个切削齿9。The No. 4 long blade 7 is a straight double arc type, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 7 cutting teeth 9 .
本实用新型的粒子冲击PDC钻头的工作原理为：利用中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2实现对井底的全覆盖，利用高压射流携带粒子对地底岩石形成“体积破碎”，通过排屑槽14将岩屑排出，保径齿10起修整井壁作用，并且在中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2无法实现破岩的情况下，刀翼与切削齿9可完成机械破岩。The working principle of the particle impact PDC drill bit of the present utility model is: utilize the central nozzle 11, the first middle nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 to realize Full coverage of the bottom of the well, the use of high-pressure jets to carry particles to form "volume crushing" on the underground rocks, the cuttings are discharged through the chip removal groove 14, the gauge teeth 10 play the role of repairing the well wall, and the central nozzle 11, the first middle When the nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 cannot break the rock, the blade and the cutting teeth 9 can complete the mechanical rock breaking.
为实现五个喷嘴形成的射流能够对井底实现全覆盖，喷嘴布置方式所述如下：In order to realize that the jets formed by the five nozzles can fully cover the bottom of the well, the arrangement of the nozzles is described as follows:
（1）中心喷嘴11出口中心距离钻头轴线距离为H，则第一中间喷嘴12-1出口中心距离钻头轴线距离为1.16H，第二中间喷嘴12-2出口中心距离钻头轴线距离为1.52H，第一边喷嘴13-1出口中心距离钻头轴线距离为2.75H，第二边喷嘴13-2出口中心距离钻头轴线距离为3.21H；(1) The distance between the center of the outlet of the central nozzle 11 and the axis of the drill bit is H, the distance between the center of the outlet of the first intermediate nozzle 12-1 and the axis of the drill bit is 1.16H, and the distance between the center of the outlet of the second intermediate nozzle 12-2 and the axis of the drill bit is 1.52H. The distance between the outlet center of the first side nozzle 13-1 and the drill bit axis is 2.75H, and the distance between the outlet center of the second side nozzle 13-2 and the drill bit axis is 3.21H;
（2）中心喷嘴11中轴线与钻头轴线的夹角为α，则第一中间喷嘴12-1中轴线与钻头轴线的夹角为0.54α，第二中间喷嘴12-2中轴线与钻头轴线的夹角为0.38α，第一边喷嘴13-1中轴线与钻头轴线的夹角为1.56α，第二边喷嘴13-2中轴线与钻头轴线的夹角为3.79α。(2) The angle between the central axis of the central nozzle 11 and the axis of the drill bit is α, the angle between the central axis of the first intermediate nozzle 12-1 and the axis of the drill bit is 0.54α, and the angle between the central axis of the second intermediate nozzle 12-2 and the axis of the drill bit The included angle is 0.38α, the included angle between the central axis of the first side nozzle 13-1 and the drill bit axis is 1.56α, and the included angle between the central axis of the second side nozzle 13-2 and the drill bit axis is 3.79α.
实施例8：Embodiment 8:
一种粒子冲击钻井用PDC钻头，包括钻头基体1和钻头中心体2，所述钻头中心体2设置在钻头基体1上部，所述钻头中心体2外周按照力学平衡设置有一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8相邻之间设置有排屑槽14，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的刀翼顶端外表面设置有多个切削齿9，所述一号长刀翼4、二号短刀翼5、三号短刀翼6、四号长刀翼7和五号短刀翼8的到翼顶端外表面设置有多个保径齿10。A PDC drill bit for particle impact drilling, comprising a drill base body 1 and a drill bit central body 2, the drill bit central body 2 is arranged on the upper part of the drill bit base body 1, and the outer periphery of the drill bit central body 2 is provided with a No. 1 long blade 4 according to mechanical balance, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8, No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, and No. 4 long blade Chip flutes 14 are arranged between wings 7 and No. 5 short blades 8. The No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade The top outer surface of the wing 8 is provided with a plurality of cutting teeth 9, the No. 1 long blade 4, No. 2 short blade 5, No. 3 short blade 6, No. 4 long blade 7 and No. 5 short blade 8 A plurality of gage teeth 10 are arranged on the outer surface of the wing tip.
所述钻头中心体2上表面设置有中心喷嘴11、第一中间喷嘴12-1、第二中间喷嘴12-2、第一边喷嘴13-1和第二边喷嘴13-2。The upper surface of the drill central body 2 is provided with a central nozzle 11, a first middle nozzle 12-1, a second middle nozzle 12-2, a first side nozzle 13-1 and a second side nozzle 13-2.
所述一号长刀翼4为直线双圆弧型，其布置4个保径齿10和6个切削齿9。The No. 1 long blade 4 is a straight double arc shape, and four gauge teeth 10 and six cutting teeth 9 are arranged on it.
所述二号短刀翼5为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 2 short blade 5 is straight and double-arc, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述三号短刀翼6为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和4个切削齿9。The No. 3 short blade 6 is a straight double arc type, and the outer surface of the top end of the blade is provided with 4 gauge teeth 10 and 4 cutting teeth 9 .
所述四号长刀翼7为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和7个切削齿9。The No. 4 long blade 7 is a straight double arc type, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 7 cutting teeth 9 .
所述五号短刀翼8为直线双圆弧型，其刀翼顶端外表面设置有4个保径齿10和5个切削齿9。The No. 5 short blade 8 is a straight double arc type, and the outer surface of the top of the blade is provided with 4 gauge teeth 10 and 5 cutting teeth 9 .
所述中心喷嘴11为圆锥形，位于钻头中心体2的中心位置。The central nozzle 11 is conical and located at the center of the central body 2 of the drill bit.
所述第一中间喷嘴12-1和第二中间喷嘴12-2为圆锥形，所述第一中间喷嘴12-1位于钻头中心体2的左下方，述第二中间喷嘴12-2位于钻头中心体2的右上方。The first intermediate nozzle 12-1 and the second intermediate nozzle 12-2 are conical, the first intermediate nozzle 12-1 is located at the lower left of the center body 2 of the drill bit, and the second intermediate nozzle 12-2 is located at the center of the drill bit top right of body 2.
所述第一边喷嘴13-1和第二边喷嘴13-2为圆锥形，所述第一边喷嘴13-1位于钻头中心体2的右下方，所述所述第二边喷嘴13-2位于钻头中心体2的左上方。The first side nozzle 13-1 and the second side nozzle 13-2 are conical, the first side nozzle 13-1 is located at the lower right of the drill center body 2, and the second side nozzle 13-2 Located on the upper left of the center body 2 of the drill bit.
本实用新型的粒子冲击PDC钻头的工作原理为：利用中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2实现对井底的全覆盖，利用高压射流携带粒子对地底岩石形成“体积破碎”，通过排屑槽14将岩屑排出，保径齿10起修整井壁作用，并且在中心喷嘴11，第一中间喷嘴12-1和第二中间喷嘴12-2，第一边喷嘴13-1和第二边喷嘴13-2无法实现破岩的情况下，刀翼与切削齿9可完成机械破岩。The working principle of the particle impact PDC drill bit of the present utility model is: utilize the central nozzle 11, the first middle nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 to realize Full coverage of the bottom of the well, the use of high-pressure jets to carry particles to form "volume crushing" on the underground rocks, the cuttings are discharged through the chip removal groove 14, the gauge teeth 10 play the role of repairing the well wall, and the central nozzle 11, the first middle When the nozzle 12-1 and the second middle nozzle 12-2, the first side nozzle 13-1 and the second side nozzle 13-2 cannot break the rock, the blade and the cutting teeth 9 can complete the mechanical rock breaking.
为实现五个喷嘴形成的射流能够对井底实现全覆盖，喷嘴布置方式所述如下：In order to realize the full coverage of the jet flow formed by the five nozzles on the bottom of the well, the arrangement of the nozzles is as follows:
（1）中心喷嘴11出口中心距离钻头轴线距离为H，则第一中间喷嘴12-1出口中心距离钻头轴线距离为1.16H，第二中间喷嘴12-2出口中心距离钻头轴线距离为1.52H，第一边喷嘴13-1出口中心距离钻头轴线距离为2.75H，第二边喷嘴13-2出口中心距离钻头轴线距离为3.21H；(1) The distance between the center of the outlet of the central nozzle 11 and the axis of the drill bit is H, the distance between the center of the outlet of the first intermediate nozzle 12-1 and the axis of the drill bit is 1.16H, and the distance between the center of the outlet of the second intermediate nozzle 12-2 and the axis of the drill bit is 1.52H. The distance between the outlet center of the first side nozzle 13-1 and the drill bit axis is 2.75H, and the distance between the outlet center of the second side nozzle 13-2 and the drill bit axis is 3.21H;
（2）中心喷嘴11中轴线与钻头轴线的夹角为α，则第一中间喷嘴12-1中轴线与钻头轴线的夹角为0.54α，第二中间喷嘴12-2中轴线与钻头轴线的夹角为0.38α，第一边喷嘴13-1中轴线与钻头轴线的夹角为1.56α，第二边喷嘴13-2中轴线与钻头轴线的夹角为3.79α。(2) The angle between the central axis of the central nozzle 11 and the axis of the drill bit is α, the angle between the central axis of the first intermediate nozzle 12-1 and the axis of the drill bit is 0.54α, and the angle between the central axis of the second intermediate nozzle 12-2 and the axis of the drill bit The included angle is 0.38α, the included angle between the central axis of the first side nozzle 13-1 and the drill bit axis is 1.56α, and the included angle between the central axis of the second side nozzle 13-2 and the drill bit axis is 3.79α.
需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721769780.1UCN207647471U (en) | 2017-12-18 | 2017-12-18 | PDC drill bit for particle percussion drilling |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721769780.1UCN207647471U (en) | 2017-12-18 | 2017-12-18 | PDC drill bit for particle percussion drilling |
| Publication Number | Publication Date |
|---|---|
| CN207647471Utrue CN207647471U (en) | 2018-07-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721769780.1UExpired - Fee RelatedCN207647471U (en) | 2017-12-18 | 2017-12-18 | PDC drill bit for particle percussion drilling |
| Country | Link |
|---|---|
| CN (1) | CN207647471U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989554A (en)* | 2017-12-18 | 2018-05-04 | 中国石油集团川庆钻探工程有限公司 | Particle impact PDC drilling bit |
| CN114718465A (en)* | 2022-04-18 | 2022-07-08 | 中南大学 | Dynamic pulling-shearing tunneling drill bit and composite rock breaking method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989554A (en)* | 2017-12-18 | 2018-05-04 | 中国石油集团川庆钻探工程有限公司 | Particle impact PDC drilling bit |
| CN114718465A (en)* | 2022-04-18 | 2022-07-08 | 中南大学 | Dynamic pulling-shearing tunneling drill bit and composite rock breaking method |
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| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20180724 |