CN101906962B - Mechanical oil pipe coupling detection device - Google Patents

Abstract

Translated fromChinese

本发明提供一种机械式油管接箍探测装置。包括本体和探测机构；在本体内设有两组呈上下设置的由三个探测部件构成的探测机构；三个探测部件沿本体的周向均匀分布；探测部件包含探测滚轮、节流轴、顶杆、缸体和换向阀；探测滚轮装于节流轴内端，节流轴的外端置于缸体内，在节流轴的外端与缸体的底部之间设有节流轴复位弹簧，节流轴的中心沿其轴向开设有节流孔；顶杆的内端置于缸体内，顶杆的外端与换向阀相连接；在缸体底部两侧的顶杆上设有内限位凸台和外限位凸台，在内限位凸台与缸体底部之间设有顶杆复位弹簧。本发明结构合理，操作方便，探测结果准确，实现了井口装置中防喷器的自动控制，提高了带压作业的工作效率。

The invention provides a mechanical oil pipe coupling detection device. Including the body and the detection mechanism; there are two sets of detection mechanisms consisting of three detection parts arranged up and down in the body; the three detection parts are evenly distributed along the circumference of the body; the detection parts include detection rollers, throttle shafts, top Rod, cylinder body and reversing valve; the detection roller is installed at the inner end of the throttle shaft, the outer end of the throttle shaft is placed in the cylinder body, and a throttle shaft is arranged between the outer end of the throttle shaft and the bottom of the cylinder body Return spring, the center of the throttle shaft is provided with a throttle hole along its axial direction; the inner end of the ejector rod is placed in the cylinder body, and the outer end of the ejector rod is connected with the reversing valve; the ejector rods on both sides of the bottom of the cylinder body An inner limit boss and an outer limit boss are arranged on the top, and a push rod return spring is arranged between the inner limit boss and the bottom of the cylinder body. The invention has the advantages of reasonable structure, convenient operation and accurate detection result, realizes the automatic control of the blowout preventer in the wellhead device, and improves the working efficiency of the pressurized operation.

Description

Translated fromChinese

机械式油管接箍探测装置Mechanical oil pipe coupling detection device

技术领域technical field

本发明涉及一种用于油田油气井的控制装置，特别是一种适用于带压作业的机械式油管接箍探测装置。The invention relates to a control device for oil and gas wells in an oil field, in particular to a mechanical oil pipe collar detection device suitable for pressure operation.

背景技术Background technique

带压作业是指高压油水井在不压井、不放喷情况下，对油管进行起、下的一种特殊作业方式。采用带压作业，既可保护油气层免受污染、提高采收率，又能避免放喷对地面的污染，符合HSE要求。带压作业的主要装置是环形防喷器或闸板防喷器，它在液压力的控制下发生变形，从而抱紧井内的油管，实现对井口的密封。由于油管的接箍直径大于管径，强行通过防喷器时，会对环形胶芯造成摩擦撕扯，使胶芯使用寿命缩短，增加生产成本，降低工作效率。油管接箍探测装置的作用在于，当油管接箍接近防喷器时，发出报警或控制信号，使防喷器快速、适时打开，以保证油管接箍的顺利通过。Snubbing operation refers to a special operation method of lifting and lowering the tubing in the high-pressure oil-water well without snubbing or blowout. The use of snubbing operation can not only protect the oil and gas reservoirs from pollution, improve the recovery rate, but also avoid the pollution of the ground by spraying, which meets the HSE requirements. The main device for hot work is the annular blowout preventer or the ram blowout preventer, which deforms under the control of hydraulic pressure, so as to hold the tubing in the well tightly and seal the wellhead. Since the diameter of the coupling of the oil pipe is larger than the diameter of the pipe, when it is forced to pass through the blowout preventer, it will cause friction and tear on the annular rubber core, shorten the service life of the rubber core, increase production costs, and reduce work efficiency. The function of the oil pipe coupling detection device is to send an alarm or control signal when the oil pipe coupling is close to the blowout preventer, so that the blowout preventer can be opened quickly and timely to ensure the smooth passage of the oil pipe coupling.

目前使用的油管接箍探测装置通常为电磁感应式，由于受外部工频电源的瞬时不稳定性、以及工作现场的油污和金属材质等因素的影响，因而探测误差较大，可靠性较低，并且此类电磁感应式油管接箍探测装置在使用中还需十分注意防爆的安全问题。中国专利200710010043.8公开了一种机械式带压作业管柱接箍探测装置，由壳体、探测部件和接近位移传感器组成；在壳体的左右两侧对称地各设置一组由探测部件壳体、探测滚轮、滚轮心轴、限位环、探测柱塞、压缩弹簧、调节活塞、丝堵组合构成的探测部件，壳体外设有与之相连接的位移传递杆、位移传递导向块、传感器导向座、传感器支架和接近位移传感器，传感器部分外侧设有保护罩，探测部件通过螺栓、螺母与壳体连接固定为一体，传感器导向座和支架用螺钉与探测部件壳体相连接；探测部件壳休、探测柱塞、调节活塞上分别设有密封圈。工作时，油管接箍的上下运动，驱动探测滚轮带动探测柱塞沿向移动，通过位移传递杆、位移传递导向块和接近位移传感器输出探测信号，实现声光报警，从而为防喷器在压力平衡控制下打开密封副让油管接箍顺利通过提供一个控制信号。该专利虽名称为机械式，但其最终仍然是通过接近位移传感器发出一个控制信号而实现的，并且左右对称式结构，对于油管偏离井口中心时，仍然存在探测误差。The currently used oil pipe coupling detection devices are usually electromagnetic induction. Due to the instantaneous instability of the external power frequency power supply, as well as the influence of factors such as oil pollution and metal materials on the work site, the detection error is large and the reliability is low. And this kind of electromagnetic induction type oil pipe coupling detection device also needs to pay great attention to the safety problem of explosion protection during use. Chinese patent 200710010043.8 discloses a mechanical detection device for pipe string couplings under pressure. Detection roller, roller mandrel, limit ring, detection plunger, compression spring, adjustment piston, and plug are composed of detection components, and the housing is equipped with a displacement transmission rod, a displacement transmission guide block, and a sensor guide seat connected to it. , the sensor bracket and the proximity displacement sensor, the outer side of the sensor part is provided with a protective cover, the detection part is connected and fixed with the shell through bolts and nuts, the sensor guide seat and the bracket are connected with the detection part shell with screws; the detection part shell, Sealing rings are respectively arranged on the detection plunger and the adjustment piston. When working, the oil pipe coupling moves up and down, drives the detection roller to drive the detection plunger to move in the direction, and outputs the detection signal through the displacement transmission rod, displacement transmission guide block and proximity displacement sensor to realize the sound and light alarm, so as to provide the blowout preventer with pressure Under balance control, the sealing pair is opened to allow the oil pipe coupling to pass through smoothly to provide a control signal. Although the patent is called mechanical, it is ultimately realized by sending a control signal through the proximity displacement sensor, and the left-right symmetrical structure still has detection errors when the tubing deviates from the center of the wellhead.

发明内容Contents of the invention

为克服现有技术的不足之处，本发明提供一种结构合理、探测结果准确、操作方便、工作效率高的机械式油管接箍探测装置。In order to overcome the shortcomings of the prior art, the present invention provides a mechanical oil pipe coupling detection device with reasonable structure, accurate detection results, convenient operation and high working efficiency.

本发明解决其技术问题所采用的技术方案是：包括本体和探测机构；The technical solution adopted by the present invention to solve its technical problems is: comprising a body and a detection mechanism;

所述本体为上下两端均带有法兰的圆筒形，在本体内设有两组呈上下设置的探测机构；The body is cylindrical with flanges at both upper and lower ends, and two sets of detection mechanisms arranged up and down are arranged in the body;

所述的探测机构由三个探测部件构成，三个探测部件沿本体的周向均匀分布；The detection mechanism is composed of three detection components, and the three detection components are evenly distributed along the circumference of the body;

所述的探测部件包含探测滚轮、节流轴、节流轴复位弹簧、顶杆、顶杆复位弹簧、缸体和换向阀；探测滚轮活动地装于水平设置的节流轴内端，节流轴的外端置于缸体内，并且在节流轴的外端与缸体的底部之间设有节流轴复位弹簧，节流轴的中心沿其轴向开设有节流孔；顶杆的内端置于缸体内，顶杆的外端与换向阀相连接；并且在缸体底部两侧的顶杆上设有内限位凸台和外限位凸台，在内限位凸台与缸体底部之间设有顶杆复位弹簧。The detection part includes a detection roller, a throttle shaft, a throttle shaft return spring, a push rod, a push rod return spring, a cylinder body and a reversing valve; The outer end of the throttle shaft is placed in the cylinder body, and a throttle shaft return spring is provided between the outer end of the throttle shaft and the bottom of the cylinder body, and a throttle hole is opened in the center of the throttle shaft along its axial direction; the top The inner end of the rod is placed in the cylinder body, and the outer end of the ejector rod is connected with the reversing valve; and the ejector rods on both sides of the bottom of the cylinder body are provided with an inner limit boss and an outer limit boss, and the inner limit boss A push rod return spring is arranged between the bit boss and the bottom of the cylinder body.

上述节流轴复位弹簧套置在顶杆复位弹簧外。The above-mentioned return spring of the throttle shaft is sleeved outside the return spring of the push rod.

工作时，首先将本发明安装于井装置的上、下环形防喷器之间，井内带压力的液体通过节流轴上的节流孔到缸体内，缸体内的节流轴复位弹簧和节流轴、顶杆复位弹簧和顶杆都处于平衡状态，探测滚轮与油管外表面相接触；然后将上、下两组的探测机构中的换向阀各自按组并联，再分别与上、下环形防喷器的液压系统相通联。以油管在本体中向上运动为例，当油管接箍触碰到下一组探测机构的探测滚轮时，探测滚轮克服节流轴复位弹簧的弹力而带动节流轴向外侧运动，致使节流轴在缸体内的体积变大，同时由于节流轴中节流孔的节流作用，缸体内的压力会暂时升高，打破顶杆复位弹簧和顶杆的平衡，顶杆向外运动作用于换向阀，换向阀则驱动下环形防喷器打开，使油管接箍顺利通过；当油管接箍通过下一组探测机构的探测滚轮后，换向阀在顶杆复位弹簧及节流轴复位弹簧的作用下而复位，则下环形防喷器复位关闭；当油管继续上行其油管接箍触碰到上一组探测机构的探测滚轮时，则工作原理同上述。由于本发明采用了两组探测机构，每组探测机构中包含有三个探测部件，三个探测滚轮呈均匀地分布在本体的周向上，因此即使油管在井口中偏离中心，也能保证探测的结果的准确性。When working, the present invention is firstly installed between the upper and lower annular blowout preventers of the well device, and the liquid with pressure in the well enters the cylinder body through the throttle hole on the throttle shaft, and the throttle shaft return spring in the cylinder body The throttle shaft, the ejector rod return spring and the ejector rod are all in a balanced state, and the detection roller is in contact with the outer surface of the oil pipe; The hydraulic systems of the lower ring blowout preventers are connected. Taking the upward movement of the oil pipe in the body as an example, when the oil pipe coupling touches the detection rollers of the next set of detection mechanisms, the detection rollers overcome the elastic force of the throttle shaft return spring and drive the throttle shaft to move outward, causing the throttle shaft to move outward. The volume in the cylinder becomes larger, and at the same time, due to the throttling effect of the throttle hole in the throttle shaft, the pressure in the cylinder will temporarily rise, breaking the balance between the ejector rod return spring and the ejector rod, and the ejector rod will move outward In the reversing valve, the reversing valve drives the lower annular blowout preventer to open, so that the oil pipe coupling can pass through smoothly; When the shaft is reset under the action of the return spring, the lower annular BOP is reset and closed; when the oil pipe continues to go up and its oil pipe coupling touches the detection rollers of the previous group of detection mechanisms, the working principle is the same as above. Since the present invention adopts two groups of detection mechanisms, each group of detection mechanisms contains three detection components, and the three detection rollers are evenly distributed in the circumferential direction of the body, so even if the tubing deviates from the center in the wellhead, the detection results can be guaranteed accuracy.

本发明的有益效果在于：其结构合理，操作方便，探测结果准确，实现了井口装置中防喷器的自动控制，大大的提高了带压作业的工作效率。The beneficial effect of the invention is that the structure is reasonable, the operation is convenient, the detection result is accurate, the automatic control of the blowout preventer in the wellhead device is realized, and the work efficiency of the pressurized operation is greatly improved.

附图说明Description of drawings

图1为本发明的结构示意图；Fig. 1 is a structural representation of the present invention;

图2为图1的A-A剖视图Fig. 2 is a sectional view of A-A of Fig. 1

图3为图2的B-B剖视图。Fig. 3 is a B-B sectional view of Fig. 2 .

图中：1为本体，1-1为上法兰，1-2为下法兰、2为探测部件，2-1为探测滚轮，2-2为轮轴，2-3为节流轴，2-31为节流孔，2-32为内限位台阶，2-33为外限位台阶，2-4为固定法兰，2-5为缸体，2-6为节流轴复位弹簧，2-7为顶杆，2-71为内限位凸台，2-72为外限位凸台，2-8为顶杆复位弹簧，2-9为换向阀，3为油管，3-1为油管接箍。In the figure: 1 is the body, 1-1 is the upper flange, 1-2 is the lower flange, 2 is the detection part, 2-1 is the detection roller, 2-2 is the wheel shaft, 2-3 is the throttle shaft, 2 -31 is the throttle hole, 2-32 is the inner limit step, 2-33 is the outer limit step, 2-4 is the fixed flange, 2-5 is the cylinder body, 2-6 is the return spring of the throttle shaft, 2-7 is the push rod, 2-71 is the inner limit boss, 2-72 is the outer limit boss, 2-8 is the push rod return spring, 2-9 is the reversing valve, 3 is the oil pipe, 3- 1 is the oil pipe coupling.

具体实施方式Detailed ways

下面结合附图对本发明作进一步详述。The present invention will be described in further detail below in conjunction with the accompanying drawings.

本发明包括的机械式油管接箍探测装置，包括本体1和探测机构；The mechanical oil pipe coupling detection device included in the present invention includes a body 1 and a detection mechanism;

所述本体1呈上下两端分别设有上法兰1-1的圆筒形，在本体1内设有两组呈上下设置的探测机构；The body 1 is in the shape of a cylinder with upper and lower ends respectively provided with upper flanges 1-1, and two sets of detection mechanisms arranged up and down are arranged in the body 1;

所述的探测机构由三个探测部件构成，三个探测部件沿本体的周向均匀分布；The detection mechanism is composed of three detection components, and the three detection components are evenly distributed along the circumference of the body;

所述的探测部件包含探测滚轮2-1、节流轴2-3、节流轴复位弹簧2-6、顶杆2-7、顶杆复位弹簧2-8、缸体2-5和换向阀2-9；探测滚轮2-1通过轮轴2-2活动地装于水平设置的节流轴2-3的内端，节流轴2-3的外端穿过固定于本体1外侧的固定法兰2-4而置于缸体2-5内，在缸体2-5顶部两侧的节流轴2-3上分别设有内限位台阶2-32和外限位台阶2-33；所述缸体2-5固定于固定法兰2-4上，并且在节流轴2-3的外端与缸体2-5的底部之间设有节流轴复位弹簧2-6，节流轴2-3的中心沿其轴向开设有节流孔2-31；顶杆2-7的内端置于缸体2-5内，顶杆2-5的外端与换向阀2-9相连接；并且在缸体2-5底部两侧的顶杆2-7上设有内限位凸台2-71和外限位凸台2-72，在该内限位凸台2-72与缸体2-5底部之间设有顶杆复位弹簧2-8。上述节流轴复位弹簧2-6套置在顶杆复位弹簧2-8外。The detection components include detection roller 2-1, throttle shaft 2-3, throttle shaft return spring 2-6, ejector rod 2-7, ejector rod return spring 2-8, cylinder body 2-5 and reversing The valve 2-9; the detection roller 2-1 is movably mounted on the inner end of the horizontally arranged throttle shaft 2-3 through the wheel shaft 2-2, and the outer end of the throttle shaft 2-3 passes through the fixed shaft fixed on the outside of the body 1 The flange 2-4 is placed in the cylinder body 2-5, and the throttle shaft 2-3 on both sides of the top of the cylinder body 2-5 is respectively provided with an inner limit step 2-32 and an outer limit step 2-33 The cylinder body 2-5 is fixed on the fixed flange 2-4, and a throttle shaft return spring 2-6 is provided between the outer end of the throttle shaft 2-3 and the bottom of the cylinder body 2-5, The center of the throttle shaft 2-3 is provided with a throttle hole 2-31 along its axial direction; the inner end of the ejector rod 2-7 is placed in the cylinder body 2-5, and the outer end of the ejector rod 2-5 is connected to the reversing valve 2-9 are connected; and the push rod 2-7 on both sides of the bottom of the cylinder 2-5 is provided with an inner limit boss 2-71 and an outer limit boss 2-72, and the inner limit boss A push rod return spring 2-8 is provided between 2-72 and the bottom of cylinder body 2-5. The throttle shaft return spring 2-6 is sleeved outside the push rod return spring 2-8.

工作时，首先将本发明通过其上法兰1-2、下法兰1-2安装于井装置的上、下环形防喷器之间，井内带压力的液体通过节流轴2-3上的节流孔2-31到缸体2-5内，缸体2-5内的节流轴复位弹簧2-6和节流轴2-3、顶杆复位弹簧2-8和顶杆2-7都处于平衡状态，探测滚轮2-1与油管3外表面相接触；然后将上、下两组的探测机构中的换向阀2-9按组并联，再分别与上、下环形防喷器的液压系统相通联。以油管3在本体中向上运动为例，当油管接箍3-1触碰到下一组探测机构的探测滚轮2-1时，探测滚轮2-1克服节流轴复位弹簧2-6的弹力而带动节流轴2-3向外侧运动，致使节流轴2-3在缸体2-5内的体积变大，同时由于节流轴2-3上的节流孔2-31的节流作用，缸体2-5内的压力会暂时升高，打破顶杆复位弹簧2-8和顶杆2-7的平衡，顶杆2-7向外运动作用于换向阀2-9，换向阀2-9则驱动下环形防喷器打开，使油管接箍3-1顺利通过；当油管接箍3-1通过下一组探测机构的探测滚轮2-1后，换向阀2-9在顶杆复位弹簧2-8及节流轴复位弹簧2-6的作用下而复位，则下环形防喷器复位关闭；当油管3继续上行，油管接箍3-1触碰到上一组探测机构的探测滚轮2-1时，则是一组探测机构重复下一组探测机构的动作。同理，当油管3在本体1中下行时，则上一组探测机构先动作，而下一组探测机构后动作。When working, first install the present invention between the upper and lower annular blowout preventers of the well device through its upper flange 1-2 and lower flange 1-2, and the liquid with pressure in the well passes through the throttling shaft 2-3. The throttle hole 2-31 in the cylinder body 2-5, the throttle shaft return spring 2-6 and the throttle shaft 2-3 in the cylinder body 2-5, the ejector rod return spring 2-8 and the ejector rod 2- 7 are in a balanced state, and the detection roller 2-1 is in contact with the outer surface of theoil pipe 3; then the reversing valves 2-9 in the detection mechanisms of the upper and lower groups are connected in parallel in groups, and then respectively connected with the upper and lower annular BOPs The hydraulic system is connected. Taking theoil pipe 3 moving upward in the body as an example, when the oil pipe coupling 3-1 touches the detection roller 2-1 of the next detection mechanism, the detection roller 2-1 overcomes the elastic force of the throttle shaft return spring 2-6 And drive the throttle shaft 2-3 to move outward, causing the volume of the throttle shaft 2-3 in the cylinder body 2-5 to become larger, and at the same time due to the throttling of the throttle hole 2-31 on the throttle shaft 2-3 function, the pressure in the cylinder body 2-5 will temporarily rise, breaking the balance between the ejector rod return spring 2-8 and the ejector rod 2-7, and the ejector rod 2-7 moves outward to act on the reversing valve 2-9, changing The direction valve 2-9 drives the lower annular blowout preventer to open, so that the oil pipe coupling 3-1 passes through smoothly; when the oil pipe coupling 3-1 passes through the detection roller 2-1 of the next set of detection mechanism, the reversing valve 2- 9. When reset under the action of ejector rod return spring 2-8 and throttle shaft return spring 2-6, the lower annular BOP is reset and closed; when theoil pipe 3 continues to go upward, the oil pipe collar 3-1 touches the previous When the detection rollers 2-1 of the detection mechanism are combined, the detection mechanism of one group repeats the action of the detection mechanism of the next group. Similarly, when theoil pipe 3 goes down in the main body 1, the detection mechanism of the upper group moves first, and the detection mechanism of the next group moves later.

由于本发明采用了两组探测机构，每组探测机构中包含有三个探测部件，三个探测滚轮2-21呈均匀地分布在本体1的周向上，因此即使油管1在井口中偏离中心，也能保证探测的结果的准确性。Since the present invention adopts two groups of detection mechanisms, each group of detection mechanisms contains three detection parts, and the three detection rollers 2-21 are evenly distributed in the circumferential direction of the body 1, so even if the tubing 1 deviates from the center in the wellhead, the The accuracy of the detection results can be guaranteed.

Claims (2)

Translated fromChinese

1.机械式油管接箍探测装置，包括本体和探测机构；其特征在于：所述本体为上下两端均带有法兰的圆筒形，在本体内设有两组呈上下设置的探测机构；1. A mechanical oil pipe coupling detection device, including a body and a detection mechanism; its feature is that the body is cylindrical with flanges at both ends, and two sets of detection mechanisms are arranged in the body. ;所述的探测机构由三个探测部件构成，三个探测部件沿本体的周向均匀分布；The detection mechanism is composed of three detection components, and the three detection components are evenly distributed along the circumference of the body;所述的探测部件包含探测滚轮、节流轴、节流轴复位弹簧、顶杆、顶杆复位弹簧、缸体和换向阀；探测滚轮活动地装于水平设置的节流轴内端，节流轴的外端置于缸体内，并且在节流轴的外端与缸体的底部之间设有节流轴复位弹簧，节流轴的中心沿其轴向开设有节流孔；顶杆的内端置于缸体内，顶杆的外端与换向阀相连接；并且在缸体底部两侧的顶杆上设有内限位凸台和外限位凸台，在内限位凸台与缸体底部之间设有顶杆复位弹簧。The detection part includes a detection roller, a throttle shaft, a throttle shaft return spring, a push rod, a push rod return spring, a cylinder body and a reversing valve; The outer end of the throttle shaft is placed in the cylinder body, and a throttle shaft return spring is provided between the outer end of the throttle shaft and the bottom of the cylinder body, and a throttle hole is opened in the center of the throttle shaft along its axial direction; the top The inner end of the rod is placed in the cylinder body, and the outer end of the ejector rod is connected with the reversing valve; and the ejector rods on both sides of the bottom of the cylinder body are provided with an inner limit boss and an outer limit boss, and the inner limit boss A push rod return spring is arranged between the bit boss and the bottom of the cylinder body.2.根据权利要求1所述的机械式油管接箍探测装置，其特征在于：上述节流轴复位弹簧套置在顶杆复位弹簧外。2. The mechanical oil pipe coupling detection device according to claim 1, characterized in that the throttle shaft return spring is sleeved outside the ejector rod return spring.

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