技术领域technical field
本发明涉及螺杆泵采油井井口密封装置技术领域，具体涉及一种注射式井口密封装置及其使用方法。The invention relates to the technical field of wellhead sealing devices for screw pump oil production wells, in particular to an injection-type wellhead sealing device and a use method thereof.
背景技术Background technique
螺杆泵属于有杆泵，在石油人工举升领域应用广泛。螺杆泵采油系统主要由地面驱动装置、光杆、抽油杆、螺杆泵组成。地面驱动装置为光杆提供旋转扭矩，抽油杆将扭矩传递给螺杆泵，螺杆泵将原油从井底举升至地面。地面井口位置需要安装井口密封装置，防止井液漏到地面引起污染环境。目前常用的螺杆泵采油井口密封装置有机械密封装置及盘根密封装置。Screw pumps are rod pumps and are widely used in the field of petroleum artificial lift. The screw pump oil production system is mainly composed of surface driving device, polished rod, sucker rod and screw pump. The surface drive device provides rotational torque for the polished rod, and the sucker rod transmits the torque to the screw pump, which lifts the crude oil from the bottom of the well to the surface. A wellhead sealing device needs to be installed at the surface wellhead to prevent the well fluid from leaking to the ground and polluting the environment. At present, the commonly used screw pump oil production wellhead sealing devices include mechanical sealing devices and packing sealing devices.
机械密封装置密封效果好，几乎达到了零泄露，所用零部件比较精密，成本较高，对工作环境要求较高，井液中含有砂子等固体杂质会磨损机械密封装置，降低机械密封的使用寿命和密封效果。机械密封装置一旦失效，短时间内液体的泄漏量比较大，对环境会造成不利影响。机械密封装置结构复杂，维修环境需要干净，很难在采油现场进行维护保养，维修难度也很大。The mechanical seal device has a good sealing effect and almost achieves zero leakage. The parts used are relatively precise, the cost is high, and the requirements for the working environment are high. Solid impurities such as sand in the well fluid will wear the mechanical seal device and reduce the service life of the mechanical seal. and sealing effect. Once the mechanical seal device fails, the leakage of liquid in a short period of time is relatively large, which will cause adverse effects on the environment. The structure of the mechanical seal device is complicated, and the maintenance environment needs to be clean, so it is difficult to perform maintenance at the oil production site, and the maintenance is also very difficult.
盘根密封装置结构简单，加工制造容易，成本低，安装维护、更换部件方便。普通盘根密封装置使用的盘根耐磨、耐高温，但是弹性较差，在实际应用中，井口倾斜、光杆圆度超差都会造成光杆发生偏心旋转，使盘根与光杆之间产生缝隙，从而造成盘根密封失效，引起井液泄漏。因而盘根密封装置存在使用周期短、易发生泄漏而造成环境污染问题。The packing sealing device has simple structure, easy processing and manufacturing, low cost, convenient installation and maintenance, and replacement of parts. The packing used in ordinary packing sealing devices is wear-resistant and high-temperature resistant, but its elasticity is poor. In practical applications, the tilt of the wellhead and the out-of-tolerance of the roundness of the polished rod will cause eccentric rotation of the polished rod, resulting in a gap between the packing and the polished rod. As a result, the packing seal fails and the well fluid leaks. Therefore, the packing sealing device has the problems of short service life, easy leakage and environmental pollution.
机械密封装置和普通盘根密封装置的维修或者维护保养，都需要停机操作，维护、保养过程时间较长，影响生产效率和生产进度。The repair or maintenance of mechanical seals and ordinary packing seals requires shutdown operations, and the maintenance and maintenance process takes a long time, which affects production efficiency and production progress.
鉴于上述原因，有必要进一步研发一种新型的井口密封装置，解决现有密封装置的不足。In view of the above reasons, it is necessary to further develop a novel wellhead sealing device to solve the deficiencies of the existing sealing devices.
发明内容Contents of the invention
本发明为了提升井口密封装置的密封性，并实现不停机维护，提供了一种注射式井口密封装置及其使用方法。In order to improve the sealing performance of the wellhead sealing device and realize non-stop maintenance, the present invention provides an injection type wellhead sealing device and a use method thereof.
本发明的技术方案是：一种注射式井口密封装置，包括密封壳体、压帽、注剂管和注剂阀，所述密封壳体的内腔中穿设有光杆，二者的环空内从上到下依次设有顶部金属套、弹簧、中部金属套、盘根、泥状填料、盘根、油封座和底部金属套；所述压帽螺纹安装在密封壳体的上端，所述弹簧处于压缩状态，所述中部金属套和油封座的外壁上均套装有密封圈，且油封座内装有油封；所述泥状填料对应的密封壳体上开设有加注孔，所述注剂管的一端安装在加注孔内，其另一端与注剂阀相连；The technical solution of the present invention is: an injection type wellhead sealing device, including a sealing shell, a pressure cap, an injection pipe and an injection valve, a polished rod is pierced in the inner cavity of the sealing shell, and the annular space between the two From top to bottom, there are top metal sleeve, spring, middle metal sleeve, packing, mud packing, packing, oil seal seat and bottom metal sleeve; The spring is in a compressed state, the middle metal sleeve and the outer wall of the oil seal seat are equipped with sealing rings, and the oil seal seat is equipped with an oil seal; the sealing shell corresponding to the mud-like filler is provided with a filling hole, and the injection One end of the pipe is installed in the filling hole, and the other end is connected with the injection valve;
还包括注射组件，所述注射组件包括注料筒和高压注剂泵，所述高压注剂泵通过高压管线与注料筒相连，所述注料筒的另一端与注剂阀可拆卸连接。It also includes an injection assembly, which includes an injection cylinder and a high-pressure injection pump, the high-pressure injection pump is connected to the injection cylinder through a high-pressure pipeline, and the other end of the injection cylinder is detachably connected to the injection valve.
优选的，所述底部金属套的下端内装有油封。Preferably, an oil seal is installed in the lower end of the bottom metal sleeve.
优选的，所述盘根材质为聚四氟乙烯或碳纤维，可以添加石墨粉、硅油等辅助成分。Preferably, the material of the packing is polytetrafluoroethylene or carbon fiber, and auxiliary components such as graphite powder and silicone oil can be added.
优选的，所述泥状填料由高强度絮状纤维、密封剂、润滑剂混合而成。Preferably, the mud-like filler is formed by mixing high-strength flocculent fibers, sealants and lubricants.
优选的，所述密封壳体的内壁下部设有用于承托底部金属套的台阶座。Preferably, the lower part of the inner wall of the sealed housing is provided with a stepped seat for supporting the bottom metal sleeve.
一种注射式井口密封装置的使用方法，包括以下步骤：A method for using an injection type wellhead sealing device, comprising the following steps:
1）将注射式井口密封装置安装于螺杆泵地面驱动装置的底部，光杆穿过注射式井口密封装置与抽油杆相连；1) Install the injection-type wellhead sealing device at the bottom of the screw pump surface driving device, and the polished rod passes through the injection-type wellhead sealing device to connect with the sucker rod;
2）注射式井口密封装置的下端连接在采油井口的上法兰上，注射式井口密封装置与采油井口的上法兰之间通过钢圈密封；2) The lower end of the injection wellhead sealing device is connected to the upper flange of the oil production wellhead, and the injection wellhead sealing device and the upper flange of the oil production wellhead are sealed by a steel ring;
3）螺杆泵采油系统正常工作时，螺杆泵地面驱动装置的输出轴带动光杆转动，光杆连接抽油杆，抽油杆连接螺杆泵，螺杆泵将井液举升至井口，带压力的井液从连接采油井口的管道排出；井液的一部分压力被盘根、泥状填料密封住，另一部压力被安装在油封座上的油封密封住；3) When the screw pump oil production system is working normally, the output shaft of the screw pump ground driving device drives the polished rod to rotate, the polished rod is connected to the sucker rod, the sucker rod is connected to the screw pump, and the screw pump lifts the well fluid to the wellhead, and the well fluid under pressure It is discharged from the pipeline connected to the oil production wellhead; part of the pressure of the well fluid is sealed by the packing and mud-like packing, and the other part of the pressure is sealed by the oil seal installed on the oil seal seat;
4）螺杆泵采油系统正常工作过程中，盘根、油封会不同程度的出现磨损，泥状填料也会出现损耗，从而造成注射式井口密封装置出现泄漏的情况；此时，将注料筒连接到注剂阀上，泥状填料装进注料筒内，再打开注剂阀，然后通过高压注剂泵向注料筒内打压，从而将泥状填料注入到注射式井口密封装置内，完成泥状填料的补充，解决了注射式井口密封装置在运行过程中泄漏问题。4) During the normal working process of the screw pump oil production system, the packing and oil seal will be worn to varying degrees, and the muddy packing will also be worn out, resulting in leakage of the injection wellhead sealing device; at this time, connect the injection cylinder Put the mud-like filler into the injection cylinder, open the injection valve, and then press the high-pressure injection pump into the injection cylinder to inject the mud-like filler into the injection-type wellhead sealing device. The supplement of mud-like packing solves the leakage problem of the injection wellhead sealing device during operation.
本发明与现有技术相比较，具有以下优点：Compared with the prior art, the present invention has the following advantages:
本装置采用了泥状填料与盘根两种密封材料，在保留原盘根密封耐磨、耐高温的优点同时，有效弥补了盘根弹性不足的缺点；本装置内装有弹簧，可提供持续的压紧力，使泥状填料受到持续的挤压，有效填补光杆偏心旋转产生的缝隙，防止井液泄漏；密封壳体上装有注剂管和注剂阀，在采油过程中，如果发生泄漏现象，可打开注剂阀，用高压注剂泵向本装置中补充泥状填料，可实现不停机维护；总之，本装置的整体结构紧凑，维修、维护简单，减少了发生泄露的情况。The device adopts two kinds of sealing materials, mud-like packing and packing, which effectively make up for the shortcomings of insufficient packing elasticity while retaining the advantages of the original packing, such as wear resistance and high temperature resistance; the device is equipped with a spring, which can provide continuous The compacting force makes the mud-like packing continuously squeezed, effectively filling the gap caused by the eccentric rotation of the polished rod, and preventing well fluid leakage; the sealing shell is equipped with an injection pipe and an injection valve. During the oil production process, if leakage occurs , the injection valve can be opened, and the high-pressure injection pump can be used to replenish the mud-like filler into the device, which can realize non-stop maintenance; in short, the overall structure of the device is compact, and the repair and maintenance are simple, reducing the occurrence of leakage.
附图说明Description of drawings
图1为本发明的剖视图；Fig. 1 is a sectional view of the present invention;
图2为本发明与螺杆泵地面驱动装置的连接示意图；Fig. 2 is the connection schematic diagram of the present invention and ground driving device of screw pump;
图3为注射组件的结构示意图。Figure 3 is a schematic structural view of the injection assembly.
图中：1、压帽，2、顶部金属套，3、弹簧，4、中部金属套，5、密封壳体，501、台阶座，6、盘根，7、泥状填料，8、油封座，9、油封，10、底部金属套，11、O型圈，12、注剂管，13、注剂阀，14、光杆，15、螺杆泵地面驱动装置，16、注料筒，17、高压管线，18、高压注剂泵，19、泄压阀。In the figure: 1. Pressure cap, 2. Top metal sleeve, 3. Spring, 4. Middle metal sleeve, 5. Sealed shell, 501, step seat, 6. Packing, 7. Mud packing, 8. Oil seal seat , 9. Oil seal, 10. Bottom metal sleeve, 11. O-ring, 12. Injection pipe, 13. Injection valve, 14. Polished rod, 15. Ground driving device of screw pump, 16. Injection barrel, 17. High pressure Pipeline, 18, high-pressure injection pump, 19, pressure relief valve.
具体实施方式Detailed ways
下面是结合附图和实施例对本发明进一步说明。The following is a further description of the present invention in conjunction with the accompanying drawings and embodiments.
实施例一Embodiment one
参照图1-3所示，一种注射式井口密封装置，包括密封壳体5、压帽1、注剂管12和注剂阀13，密封壳体5的内腔中穿设有光杆14，二者的环空内从上到下依次设有顶部金属套2、弹簧3、中部金属套4、盘根6、泥状填料7、盘根6、油封座8和底部金属套10；压帽1螺纹安装在密封壳体5的上端，通过旋转压帽1压紧顶部金属套2、弹簧3，弹簧3压缩并产生持续压力挤压中部金属套4、盘根6以及泥状填料7。Referring to Figures 1-3, an injection-type wellhead sealing device includes a sealing housing 5, a pressure cap 1, an injection tube 12 and an injection valve 13, and a polished rod 14 is pierced in the inner cavity of the sealing housing 5. In the annular space of the two, there are top metal sleeve 2, spring 3, middle metal sleeve 4, packing 6, mud packing 7, packing 6, oil seal seat 8 and bottom metal sleeve 10 in order from top to bottom; pressure cap 1 Thread is installed on the upper end of the sealing shell 5, and the top metal sleeve 2 and spring 3 are pressed by rotating the pressure cap 1, and the spring 3 compresses and generates continuous pressure to squeeze the middle metal sleeve 4, packing 6 and muddy packing 7.
盘根6受到挤压，产生塑性变形，仅仅贴合密封面，同时其本身有自润滑、耐磨、耐高温等特性，为井口密封装置提供了很好的密封性能。泥状填料7质地柔软，当其收到来自弹簧3的持续压紧力时，泥状填料7可很好的贴合密封面，不会因为密封面的零部件震动而产生泄漏的情况。盘根6以及泥状填料7的配合使用，可以同时发挥两种密封材料的优点。The packing 6 is extruded to produce plastic deformation, and only adheres to the sealing surface. At the same time, it has the characteristics of self-lubricating, wear-resistant, and high-temperature resistance, which provides good sealing performance for the wellhead sealing device. The mud-like filler 7 is soft in texture, and when it receives the continuous pressing force from the spring 3, the mud-like filler 7 can fit the sealing surface well, and will not cause leakage due to the vibration of parts on the sealing surface. The combined use of the packing 6 and the mud-like filler 7 can simultaneously bring into play the advantages of the two sealing materials.
中部金属套4外圆加工有凹槽，并安装有O型圈11，O型圈11的密封形式属于静密封，承压能力比较强，可以有效防止井液从中部金属套4与密封壳体5之间的缝隙渗漏到地面。The outer circle of the middle metal sleeve 4 is processed with grooves, and an O-ring 11 is installed. The sealing form of the O-ring 11 is a static seal, and the pressure bearing capacity is relatively strong, which can effectively prevent the well fluid from the middle metal sleeve 4 and the sealing shell. The gap between 5 leaks to the ground.
油封座8的外圆加工有凹槽，并安装有O型圈11。油封座8内部装有油封9，油封9起到密封光杆14的作用。光杆14表面光滑，当光杆14运行平稳或震动不明显的时候，油封9的密封效果很好。The outer circle of the oil seal seat 8 is processed with a groove, and an O-ring 11 is installed. An oil seal 9 is installed inside the oil seal seat 8, and the oil seal 9 plays the role of sealing the polished rod 14. The surface of the polished rod 14 is smooth, and when the polished rod 14 runs smoothly or the vibration is not obvious, the sealing effect of the oil seal 9 is very good.
螺杆泵地面驱动装置15带动光杆14运转过程中，光杆14或多或少会产生震动、偏磨的可能，震动和偏磨不利于密封面的密封效果。螺杆泵地面驱动装置15安装时，光杆14穿过顶部金属套2、中部金属套4、底部金属套10，这三个零部件起到扶正光杆14的作用，有防止或减弱光杆14产生震动、偏磨的作用，有利于提高密封材料的密封效果和使用寿命。During the operation of the polished rod 14 driven by the ground driving device 15 of the screw pump, the polished rod 14 may more or less generate vibration and partial wear, which are not conducive to the sealing effect of the sealing surface. When the screw pump ground driving device 15 is installed, the polished rod 14 passes through the top metal sleeve 2, the middle metal sleeve 4, and the bottom metal sleeve 10. These three parts play the role of righting the polished rod 14, preventing or weakening the polished rod 14 from vibration The effect of eccentric wear is beneficial to improve the sealing effect and service life of the sealing material.
泥状填料7对应的密封壳体5上开设有加注孔，注剂管12的一端安装在加注孔内，其另一端与注剂阀13相连；此外，本井口密封装置还包括注射组件，注射组件包括注料筒16和高压注剂泵18，高压注剂泵18通过高压管线17与注料筒16相连，注料筒16的另一端与注剂阀13可拆卸连接。在采油过程中，注剂阀13是处于关闭状态。如果在采油过程中，本井口密封装置发生泄漏现象，可打开注剂阀13，用高压注剂泵18向密封壳体5中补充泥状填料7，封堵内部泄漏位置，这样可实现不停机维护。A filling hole is opened on the sealing shell 5 corresponding to the mud packing 7, and one end of the injection pipe 12 is installed in the filling hole, and the other end is connected with the injection valve 13; in addition, the wellhead sealing device also includes an injection assembly The injection assembly includes an injection cylinder 16 and a high-pressure injection pump 18. The high-pressure injection pump 18 is connected to the injection cylinder 16 through a high-pressure pipeline 17, and the other end of the injection cylinder 16 is detachably connected to the injection valve 13. During oil recovery, the injection valve 13 is in a closed state. If the wellhead sealing device leaks during the oil production process, the injection valve 13 can be opened, and the high-pressure injection pump 18 can be used to replenish the mud-like filler 7 into the sealing casing 5 to block the internal leakage position, so that non-stop operation can be realized maintain.
盘根6材质为聚四氟乙烯或碳纤维等，可以添加石墨粉、硅油等辅助成分。The packing 6 is made of polytetrafluoroethylene or carbon fiber, etc., and auxiliary components such as graphite powder and silicone oil can be added.
泥状填料7由高强度絮状纤维、密封剂、润滑剂混合而成，可含油挤出。The mud-like filler 7 is made of high-strength flocculent fibers, sealants and lubricants, and can be extruded with oil.
本装置的使用方法，包括以下步骤：The use method of this device comprises the following steps:
1）将注射式井口密封装置安装于螺杆泵地面驱动装置15的底部，光杆14穿过注射式井口密封装置与抽油杆相连；1) Install the injection type wellhead sealing device on the bottom of the screw pump ground driving device 15, and the polished rod 14 passes through the injection type wellhead sealing device and connects with the sucker rod;
2）注射式井口密封装置的下端连接在采油井口的上法兰上，注射式井口密封装置与采油井口的上法兰之间通过钢圈密封；2) The lower end of the injection wellhead sealing device is connected to the upper flange of the oil production wellhead, and the injection wellhead sealing device and the upper flange of the oil production wellhead are sealed by a steel ring;
3）螺杆泵采油系统正常工作时，螺杆泵地面驱动装置15的输出轴带动光杆14转动，光杆14连接抽油杆，抽油杆连接螺杆泵，螺杆泵将井液举升至井口，带压力的井液从连接采油井口的管道排出；井液的一部分压力被盘根6、泥状填料7密封住，另一部压力被安装在油封座8上的油封9密封住；3) When the screw pump oil production system is working normally, the output shaft of the screw pump surface driving device 15 drives the polished rod 14 to rotate, the polished rod 14 is connected to the sucker rod, and the sucker rod is connected to the screw pump, and the screw pump lifts the well fluid to the wellhead, with pressure The well fluid is discharged from the pipeline connected to the oil production wellhead; part of the pressure of the well fluid is sealed by the packing 6 and the mud packing 7, and the other part of the pressure is sealed by the oil seal 9 installed on the oil seal seat 8;
4）螺杆泵采油系统正常工作过程中，盘根6、油封9会不同程度的出现磨损，泥状填料7也会出现损耗，从而造成注射式井口密封装置出现泄漏的情况；此时，将注料筒16连接到注剂阀13上，泥状填料7装进注料筒16内，再打开注剂阀13，然后通过高压注剂泵18向注料筒16内打压，从而将泥状填料7注入到注射式井口密封装置内，完成泥状填料7的补充，解决了注射式井口密封装置在运行过程中泄漏问题。4) During the normal working process of the screw pump oil production system, the packing 6 and the oil seal 9 will be worn to varying degrees, and the muddy packing 7 will also be worn out, resulting in leakage of the injection wellhead sealing device; at this time, the injection The barrel 16 is connected to the injection valve 13, and the mud-like filler 7 is put into the injection barrel 16, and then the injection valve 13 is opened, and then the high-pressure injection pump 18 is pressed into the injection barrel 16, so that the mud-like filler 7 is injected into the injection type wellhead sealing device to complete the replenishment of the muddy packing 7 and solve the leakage problem of the injection type wellhead sealing device during operation.
其中步骤4）的具体操作如下：The specific operation of step 4) is as follows:
1.如图3所示，高压注剂泵18上装有泄压阀19，高压注剂泵18与高压管线17之间连有三通和压力表，高压管线17与注料筒16之间通过螺纹接头连接，注料筒16另一端装有螺纹接头，可以连接注剂阀13。1. As shown in Figure 3, a pressure relief valve 19 is installed on the high-pressure injection pump 18, a tee and a pressure gauge are connected between the high-pressure injection pump 18 and the high-pressure pipeline 17, and a screw thread is used between the high-pressure pipeline 17 and the injection cylinder 16 Joint connection, injection cylinder 16 other end is equipped with threaded joint, can connect injection valve 13.
2.在采油设备运转过程中发现本井口密封装置渗漏时，向注料筒16添加一些泥状填料7，将注料筒16与注剂阀13连接起来。2. When leakage of the wellhead sealing device is found during the operation of the oil production equipment, add some mud-like filler 7 to the injection cylinder 16, and connect the injection cylinder 16 with the injection valve 13.
3.高压注剂泵18上的泄压阀19处于上紧状态，此时可以用高压注剂泵18向注料筒16加压，加压过程中注意观察压力表读数，压力要在允许范围内。3. The pressure relief valve 19 on the high-pressure injection pump 18 is in a tightened state. At this time, the high-pressure injection pump 18 can be used to pressurize the injection cylinder 16. During the pressurization process, pay attention to the reading of the pressure gauge, and the pressure must be within the allowable range Inside.
4.注料筒16内的泥状填料7在压力下，通过注剂阀13、注剂管12进入到密封壳体5内，补充了泥状填料7。4. Under pressure, the muddy filler 7 in the injection barrel 16 enters the sealed housing 5 through the injection valve 13 and the injection pipe 12 to supplement the muddy filler 7 .
5.补充泥状填料7之后，本井口密封装置内泄漏位置会被泥状填料7填补，确认密封装置不再渗漏后，可停止打压，关闭注剂阀13，松开高压注剂泵18上的泄压阀19，断开注料筒16与注剂阀13的连接，完成注料步骤。5. After replenishing the mud packing 7, the leakage position in the wellhead sealing device will be filled by the mud packing 7. After confirming that the sealing device is no longer leaking, you can stop pressing, close the injection valve 13, and release the high pressure injection pump 18 Disconnect the injection cylinder 16 from the pressure relief valve 19 on the injection valve 13 to complete the injection step.
本装置采用了泥状填料7与盘根6两种密封材料，在保留原盘根6密封耐磨、耐高温的优点同时，有效弥补了盘根6弹性不足的缺点；本装置内装有弹簧3，可提供持续的压紧力，使泥状填料7受到持续的挤压，有效填补光杆14偏心旋转产生的缝隙，防止井液泄漏；密封壳体5上装有注剂管12和注剂阀13，在采油过程中，如果发生泄漏现象，可打开注剂阀13，用高压注剂泵18向本装置中补充泥状填料7，可实现不停机维护；总之，本装置的整体结构紧凑，维修、维护简单，减少了发生泄露的情况。This device adopts two kinds of sealing materials, mud-like filler 7 and packing 6, while retaining the advantages of the original packing 6, which are wear-resistant and high-temperature resistant, it effectively makes up for the shortcomings of the packing 6's lack of elasticity; the device is equipped with a spring 3 , can provide continuous pressing force, so that the mud-like packing 7 is continuously squeezed, effectively fills the gap caused by the eccentric rotation of the polished rod 14, and prevents well fluid from leaking; the sealing shell 5 is equipped with an injection pipe 12 and an injection valve 13 , in the process of oil production, if leakage occurs, the injection valve 13 can be opened, and the high-pressure injection pump 18 can be used to supplement the mud-like filler 7 into the device, which can realize non-stop maintenance; in a word, the overall structure of the device is compact and easy to maintain. , Maintenance is simple, reducing the situation of leakage.
实施例二Embodiment two
作为本发明的一项优选实施例，本实施例在实施例一的基础上对装置的结构进行了优化，具体为：As a preferred embodiment of the present invention, this embodiment optimizes the structure of the device on the basis of Embodiment 1, specifically:
在本实施例中，底部金属套10的下端内装有油封9。该油封9具有一定的承压能力，是本井口密封装置中第一个承压的密封件。In this embodiment, an oil seal 9 is installed in the lower end of the bottom metal sleeve 10 . The oil seal 9 has a certain pressure-bearing capacity, and is the first pressure-bearing sealing member in the wellhead sealing device.
此外，密封壳体5的内壁下部设有用于承托底部金属套10的台阶座501。In addition, the lower part of the inner wall of the sealed housing 5 is provided with a stepped seat 501 for supporting the bottom metal sleeve 10 .
本发明并不限于上述的实施方式，在本领域技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下做出各种变化，变化后的内容仍属于本发明的保护范围。The present invention is not limited to the above-mentioned embodiments, within the scope of knowledge of those skilled in the art, various changes can also be made without departing from the gist of the present invention, and the changed content still belongs to the protection scope of the present invention .
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310861293.1ACN116607907A (en) | 2023-07-14 | 2023-07-14 | Injection type wellhead sealing device and application method thereof |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310861293.1ACN116607907A (en) | 2023-07-14 | 2023-07-14 | Injection type wellhead sealing device and application method thereof |
| Publication Number | Publication Date |
|---|---|
| CN116607907Atrue CN116607907A (en) | 2023-08-18 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310861293.1APendingCN116607907A (en) | 2023-07-14 | 2023-07-14 | Injection type wellhead sealing device and application method thereof |
| Country | Link |
|---|---|
| CN (1) | CN116607907A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119103123A (en)* | 2024-10-24 | 2024-12-10 | 山东大学 | A rotary extrusion grouting device capable of injecting viscous materials |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089538A (en)* | 2015-05-22 | 2015-11-25 | 克拉玛依胜利高原机械有限公司 | Sealing structure of rod oil producing wellhead polish rod |
| CN205577924U (en)* | 2016-04-27 | 2016-09-14 | 鄯善工业园区东永石油机械制造有限公司 | Automatic oiling auxiliary seal device of beam -pumping unit well head polished rod sealing packing box |
| CN112177553A (en)* | 2020-09-04 | 2021-01-05 | 山东威德福高原人工举升装备有限公司 | Double-seal wellhead sealing device and method |
| CN112412381A (en)* | 2021-01-19 | 2021-02-26 | 东营市海天自动化工程有限责任公司 | Oil recovery well head sealing protection device |
| CN218716664U (en)* | 2022-10-26 | 2023-03-24 | 克拉玛依胜利高原机械有限公司 | Multi-stage blowout prevention sealing box for oil pumping polished rod |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089538A (en)* | 2015-05-22 | 2015-11-25 | 克拉玛依胜利高原机械有限公司 | Sealing structure of rod oil producing wellhead polish rod |
| CN205577924U (en)* | 2016-04-27 | 2016-09-14 | 鄯善工业园区东永石油机械制造有限公司 | Automatic oiling auxiliary seal device of beam -pumping unit well head polished rod sealing packing box |
| CN112177553A (en)* | 2020-09-04 | 2021-01-05 | 山东威德福高原人工举升装备有限公司 | Double-seal wellhead sealing device and method |
| CN112412381A (en)* | 2021-01-19 | 2021-02-26 | 东营市海天自动化工程有限责任公司 | Oil recovery well head sealing protection device |
| CN218716664U (en)* | 2022-10-26 | 2023-03-24 | 克拉玛依胜利高原机械有限公司 | Multi-stage blowout prevention sealing box for oil pumping polished rod |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119103123A (en)* | 2024-10-24 | 2024-12-10 | 山东大学 | A rotary extrusion grouting device capable of injecting viscous materials |
| Publication | Publication Date | Title |
|---|---|---|
| CN116607907A (en) | Injection type wellhead sealing device and application method thereof | |
| CN107152463B (en) | Bearing separation type grouting bearing packing device | |
| CN115045630A (en) | Conversion type Christmas tree port sealing device for oil field | |
| CN106594287B (en) | Sustainable sealing machine sealing device when one kind is changed | |
| CN106917597A (en) | Oil-field oil pumper packing box | |
| CN2890416Y (en) | Hydraulic sealing device of plunger pump | |
| CN222879938U (en) | Combined mechanical sealing structure for oil field | |
| CN101644148A (en) | Non-smooth flexible rope corrugated pipe wellhead sealing device | |
| CN201184161Y (en) | Automatic tight formula rod-pumped well polish rod seals packing box | |
| CN218971408U (en) | A sealing device for a plunger pump | |
| CN220365551U (en) | Oil pumping machine wellhead grease injection polished rod sealer and special grease injection gun | |
| CN2442034Y (en) | Double row fluid dynamic pressure groove self lubrication non-contact type mechanical seal | |
| CN216950301U (en) | Multi-stage step type air bag self-compensation multifunctional polish rod sealer | |
| CN110836224A (en) | Free expansion clearance compensation formula slewing bearing | |
| CN215595533U (en) | Pumping unit well head antiseep sealing device | |
| CN212959070U (en) | Sealing device for high-pressure plunger water injection pump packing of offshore oil platform | |
| CN111706502A (en) | A sealing device for high-pressure plunger injection pump packing of offshore oil platform | |
| WO2023141875A1 (en) | Fluid end of plunger pump, plunger pump, and oil and gas field fracturing apparatus having same | |
| CN111140457A (en) | Plunger type metering pump with replaceable plunger, pump head of plunger type metering pump and multi-cylinder plunger type metering pump | |
| CN222502049U (en) | Pump head device of plunger type metering pump | |
| CN220101236U (en) | Automatic energy-charging type wellhead sealer | |
| CN2837498Y (en) | Wash pipe assembly for power swivel used in petroleum and natural gas drilling | |
| CN206439406U (en) | Sustainable sealing machine sealing device when one kind is changed | |
| CN220015566U (en) | Novel leak-proof structure for hydraulic sealing of water feeding pump core | |
| CN207212652U (en) | A kind of slant hole pump |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |