技术领域technical field
本实用新型涉及油气钻井技术领域，尤其涉及一种液压锚定密封装置。The utility model relates to the technical field of oil and gas drilling, in particular to a hydraulic anchoring and sealing device.
背景技术Background technique
随着钻井技术与油气田开发技术的发展，大量的老旧油气井需要通过开窗侧钻出新井眼与油藏连接，部分出现复杂事故的油气井需要侧钻一个新的井眼避开复杂地层或事故井段。侧钻是通过造斜器引导铣鞋磨铣套管形成窗口，更换钻头后通过套管钻出一个分支井眼的钻井工艺。侧钻造斜器可使用一体式或分体式锚定密封装置，一体式造斜器将造斜面与锚定密封装置设计为一个整体，同时下放到油气井筒中；分体式造斜器分造斜器和锚定密封装置两部分组成，锚定密封装置预先下入井筒中固定，然后下入造斜器安装在锚定密封装置上端。锚定密封装置的牢固性和稳定性是保证窗口质量及后续施工顺利进行的重要保障。With the development of drilling technology and oil and gas field development technology, a large number of old oil and gas wells need to sidetrack new wells to connect with the reservoir through opening windows, and some oil and gas wells with complex accidents need to sidetrack a new well to avoid complex formations or accident well section. Sidetracking is a drilling process in which the milling shoe is used to guide the milling shoe to mill the casing to form a window, and after the drill bit is replaced, a branch hole is drilled through the casing. The sidetracking whipstock can use integrated or split-type anchoring and sealing devices. The integrated whipstock is designed with the whipstock surface and the anchoring and sealing device as a whole, and is lowered into the oil and gas wellbore at the same time; the split-type whipstock is divided into two parts It is composed of two parts: a device and an anchor sealing device. The anchor sealing device is lowered into the wellbore and fixed in advance, and then the whipstock is lowered and installed on the upper end of the anchor sealing device. The firmness and stability of the anchor sealing device is an important guarantee to ensure the quality of the window and the smooth progress of subsequent construction.
目前，国内开窗侧钻普遍使用的锚定装置大多为单排单向卡瓦结构或两排单向卡瓦结构，单向单排卡瓦结构只能承受单向作用力；双排单向卡瓦结构由于结构复杂，导致锚定机构同步性较差，现场应用时锚定效果不佳。At present, most of the anchoring devices commonly used in sidetrack drilling in China are single-row one-way slip structure or two-row one-way slip structure. The one-way single-row slip structure can only bear one-way force; Due to the complex structure of the slip structure, the synchronization of the anchoring mechanism is poor, and the anchoring effect is not good in field application.
实用新型内容Utility model content
本实用新型的目的在于提出一种结构简单、锚定效果好的液压锚定密封装置。The purpose of the utility model is to provide a hydraulic anchoring and sealing device with simple structure and good anchoring effect.
为达此目的，本实用新型采用以下技术方案：For this purpose, the utility model adopts the following technical solutions:
一种液压锚定密封装置，包括锚定机构、胶筒座封机构、丢手机构以及活塞机构，所述活塞机构用于驱动所述锚定机构实现与套管的锚定、驱动所述胶筒座封机构膨胀封隔所述套管以及驱动所述丢手机构实现液压锚定密封装置的丢手动作，所述锚定机构包括锥体、卡瓦组件及卡瓦锁环组件，所述卡瓦锁环组件固定于所述中心管，所述锥体套设于中心管外并与所述活塞机构连接，所述卡瓦组件包括与所述锥体下端的锥形端部连接的卡瓦，所述锥体在所述活塞机构的驱动下将所述卡瓦的卡齿嵌入所述套管内，所述卡瓦锁环组件用于锁定所述卡瓦相对所述套管的运动方向。A hydraulic anchoring and sealing device, comprising an anchoring mechanism, a rubber cartridge seat seal mechanism, a hand-discharging mechanism, and a piston mechanism, and the piston mechanism is used to drive the anchoring mechanism to achieve anchoring with the sleeve and drive the glue The sleeve seat seal mechanism expands and seals the casing and drives the release mechanism to realize the release action of the hydraulic anchor sealing device. The anchor mechanism includes a cone, a slip assembly and a slip lock ring assembly. The slip lock ring assembly is fixed on the central tube, the cone is sleeved outside the central tube and connected to the piston mechanism, and the slip assembly includes a clip connected to the tapered end of the lower end of the cone Shoe, the cone is driven by the piston mechanism to insert the teeth of the slip into the sleeve, and the slip lock ring assembly is used to lock the movement direction of the slip relative to the sleeve .
其中，所述卡瓦组件还包括卡瓦座，所述卡瓦座与所述活塞机构连接，所述卡瓦位于所述锥体下端的锥形端部与所述卡瓦座之间。Wherein, the slip assembly further includes a slip seat, the slip seat is connected with the piston mechanism, and the slip is located between the tapered end of the lower end of the cone and the slip seat.
其中，所述卡瓦锁环组件包括设置于所述锥体与所述中心管之间的卡瓦锁环以及卡瓦锁环座，所述卡瓦锁环座固定于所述中心管，所述卡瓦锁环套设于所述卡瓦锁环座外，所述卡瓦锁环和所述卡瓦锁环座具有相互配合的倒齿，所述卡瓦锁环座的倒齿沿所述中心管的轴线方向向下倾斜设置。Wherein, the slip lock ring assembly includes a slip lock ring and a slip lock ring seat arranged between the cone and the central tube, the slip lock ring seat is fixed on the central tube, and the The slip lock ring is sleeved on the outside of the slip lock ring seat, the slip lock ring and the slip lock ring seat have inverted teeth that cooperate with each other, and the inverted teeth of the slip lock ring seat are along the The axial direction of the central tube is arranged obliquely downward.
其中，所述活塞机构包括下活塞组件，所述下活塞组件包括下活塞和下活塞缸，所述下活塞套设于所述中心管外，所述下活塞缸套设于所述下活塞外并与所述卡瓦座固定，所述中心管的上端设置有第一传压孔，所述第一传压孔依次贯穿所述中心管和所述下活塞，并与所述下活塞和所述下活塞缸之间的第一腔体连通，所述中心管与所述下活塞通过下活塞剪钉固定。Wherein, the piston mechanism includes a lower piston assembly, the lower piston assembly includes a lower piston and a lower piston cylinder, the lower piston is sleeved outside the central tube, and the lower piston cylinder is sleeved outside the lower piston And fixed with the slip seat, the upper end of the central tube is provided with a first pressure transmission hole, the first pressure transmission hole runs through the central tube and the lower piston in turn, and is connected with the lower piston and the lower piston The first cavity between the lower piston cylinders is connected, and the central tube and the lower piston are fixed by lower piston scissors.
其中，所述下活塞缸的下端设置有第一泄压孔。Wherein, the lower end of the lower piston cylinder is provided with a first pressure relief hole.
其中，所述胶筒座封机构包括与所述锥体的上端固定的衬管，所述衬管外由下至上套设有多个胶筒和防转筒，相邻的所述胶筒之间设置有隔环，所述胶筒与所述锥体之间、所述胶筒与所述防转筒之间均设置有压环，所述防转筒与所述衬管通过平键连接，所述防转筒与所述活塞机构连接。Wherein, the rubber sleeve seat sealing mechanism includes a liner fixed to the upper end of the cone, and a plurality of rubber sleeves and anti-rotation sleeves are sheathed on the outside of the liner from bottom to top. A spacer ring is provided between the rubber cylinder and the cone, and a pressure ring is provided between the rubber cylinder and the anti-rotation cylinder, and the anti-rotation cylinder and the liner are connected by a flat key , the anti-rotation cylinder is connected with the piston mechanism.
其中，所述活塞机构还包括上活塞组件和丢手活塞组件，所述上活塞组件包括上活塞、上活塞缸及定向筒，所述上活塞缸套设于所述上活塞外并与所述丢手活塞组件固定，所述上活塞缸和所述上活塞通过上活塞剪钉固定，所述上活塞的下端与所述定向筒固定，所述定向筒与所述防转筒固定，所述上活塞的上端与所述丢手活塞组件围成第二腔体，所述第二腔体与第二传压孔连通。Wherein, the piston mechanism also includes an upper piston assembly and a hands-off piston assembly, the upper piston assembly includes an upper piston, an upper piston cylinder and an orientation cylinder, and the upper piston cylinder is sleeved outside the upper piston and connected to the upper piston The hands-free piston assembly is fixed, the upper piston cylinder and the upper piston are fixed by upper piston scissors, the lower end of the upper piston is fixed with the orientation cylinder, the orientation cylinder is fixed with the anti-rotation cylinder, the The upper end of the upper piston and the release piston assembly form a second cavity, and the second cavity communicates with the second pressure transmission hole.
其中，所述衬管与所述防转筒之间设置有胶筒锁环及胶筒锁环座，所述胶筒锁环座固定于所述衬管，所述胶筒锁环套设于所述胶筒锁环座外，所述胶筒锁环和所述胶筒锁环座具有相互配合的倒齿，所述胶筒锁环座的倒齿沿所述衬管的轴线方向向下倾斜设置。Wherein, a rubber cylinder locking ring and a rubber cylinder locking ring seat are arranged between the liner and the anti-rotation cylinder, the rubber cylinder locking ring seat is fixed on the liner, and the rubber cylinder locking ring is sleeved on the Outside the rubber cartridge lock ring seat, the rubber cartridge lock ring and the rubber cartridge lock ring seat have inverted teeth that cooperate with each other, and the inverted teeth of the rubber cartridge lock ring seat are downward along the axial direction of the liner Tilt setting.
其中，所述丢手活塞组件包括丢手活塞和丢手活塞缸，所述丢手活塞缸套设于所述丢手活塞外并与所述上活塞缸固定，所述丢手活塞的内表面固定有所述丢手机构，所述丢手活塞、所述上活塞和所述丢手机构围成所述第二腔体，所述丢手机构上设置有所述第二传压孔，所述第二传压孔与所述第二腔体连通。Wherein, the hands-free piston assembly includes a hands-free piston and a hands-free piston cylinder, the hands-free piston cylinder is sleeved outside the hands-free piston and fixed with the upper piston cylinder, and the inner surface of the hands-free piston The release mechanism is fixed, the release piston, the upper piston and the release mechanism enclose the second cavity, and the release mechanism is provided with the second pressure transmission hole, so The second pressure transmission hole communicates with the second cavity.
其中，所述丢手机构包括上接头、丢手中心管和丢手接头，所述上接头套设于所述丢手活塞外并与所述丢手活塞缸的上端固定，所述丢手中心管套设于所述上活塞内，并与所述丢手活塞的固定，所述丢手中心管上设置有所述第二传压孔，所述丢手中心管的下端与丢手接头固定，所述丢手接头通过丢手剪钉与所述中心管固定。Wherein, the hands-off mechanism includes an upper joint, a hands-free center pipe and a hands-free joint, the upper joint is sleeved outside the hands-free piston and fixed to the upper end of the hands-free piston cylinder, and the hands-free center The pipe sleeve is set in the upper piston and is fixed to the handle piston. The handle center tube is provided with the second pressure transmission hole, and the lower end of the handle center tube is fixed to the handle joint. , the hands-off joint is fixed to the center pipe by hands-off shears.
有益效果：本实用新型提供了一种液压锚定密封装置，包括锚定机构、胶筒座封机构、丢手机构以及活塞机构，所述活塞机构用于驱动所述锚定机构实现与套管的锚定、驱动所述胶筒座封机构膨胀封隔所述套管以及驱动所述丢手机构实现液压锚定密封装置的丢手动作，所述锚定机构包括锥体、卡瓦组件及卡瓦锁环组件，所述卡瓦锁环组件固定于所述中心管，所述锥体套设于中心管外并与所述活塞机构连接，所述卡瓦组件包括与所述锥体下端的锥形端部连接的卡瓦，所述锥体在所述活塞机构的驱动下将所述卡瓦的卡齿嵌入所述套管内，所述卡瓦锁环组件用于锁定所述卡瓦相对所述套管的运动方向。卡瓦锁环组件限制卡瓦只能相对套管向下运动，使锚定机构通过单排卡瓦不仅限制了液压锚定密封装置周向位置，而且通过使锚定机构可以承受双向作用力，从而限制了液压锚定密封装置的轴向位置，防止卡瓦向上脱离套管，加强了锚定机构的固定效果。Beneficial effects: the utility model provides a hydraulic anchoring and sealing device, which includes an anchoring mechanism, a rubber cylinder seat sealing mechanism, a hand-losing mechanism and a piston mechanism, and the piston mechanism is used to drive the anchoring mechanism to realize the connection with the casing anchoring, driving the rubber cartridge seat seal mechanism to expand and seal the casing, and driving the release mechanism to realize the release action of the hydraulic anchor sealing device. The anchor mechanism includes a cone, a slip assembly and A slip lock ring assembly, the slip lock ring assembly is fixed on the central tube, the cone is sheathed outside the central tube and connected to the piston mechanism, the slip assembly includes the lower end of the cone Slips connected to the tapered end of the cone, the cone is driven by the piston mechanism to insert the teeth of the slips into the sleeve, and the slip lock ring assembly is used to lock the slips relative to the direction of motion of the bushing. The slip lock ring assembly restricts the slips to move downward relative to the casing, so that the anchor mechanism not only limits the circumferential position of the hydraulic anchor sealing device through a single row of slips, but also allows the anchor mechanism to withstand two-way forces, Therefore, the axial position of the hydraulic anchoring sealing device is limited, the slips are prevented from upwardly detaching from the casing, and the fixing effect of the anchoring mechanism is enhanced.
附图说明Description of drawings
图1是本实用新型提供的液压锚定密封装置的结构示意图；Fig. 1 is a schematic structural view of the hydraulic anchor sealing device provided by the utility model;
图2是图1中A处的局部放大图；Fig. 2 is a partial enlarged view of place A in Fig. 1;
图3是图1中B处的局部放大图；Fig. 3 is a partial enlarged view of place B in Fig. 1;
图4是本实用新型提供的卡瓦锁环组件的结构示意图；Fig. 4 is a schematic structural view of the slip lock ring assembly provided by the utility model;
图5是本实用新型提供的卡瓦锁环的结构示意图。Fig. 5 is a structural schematic diagram of the slip lock ring provided by the utility model.
其中：in:
11、锥体；11. Cone;
12、卡瓦组件；121、卡瓦；122、卡瓦座；12. Slip components; 121. Slips; 122. Slip seat;
13、卡瓦锁环组件；131、卡瓦锁环座；132、卡瓦锁环；13. Slip lock ring assembly; 131. Slip lock ring seat; 132. Slip lock ring;
211、下活塞；212、下活塞缸；213、第一腔体；214、第一传压孔；215、下活塞剪钉；216、第一泄压孔；211, the lower piston; 212, the lower piston cylinder; 213, the first cavity; 214, the first pressure transmission hole; 215, the lower piston shear nail; 216, the first pressure relief hole;
221、上活塞；222、上活塞缸；223、定向筒；224、第二腔体；225、第二传压孔；226、上活塞剪钉；227、导向键；221, upper piston; 222, upper piston cylinder; 223, directional cylinder; 224, second cavity; 225, second pressure transmission hole; 226, upper piston shear nail; 227, guide key;
231、丢手活塞；232、丢手活塞缸；233、第二泄压孔；231, throw away the piston; 232, throw away the piston cylinder; 233, the second pressure relief hole;
31、衬管；32、胶筒；33、防转筒；34、压环；35、隔环；361、胶筒锁环座；362、胶筒锁环；37、平键；31. Liner; 32. Rubber cylinder; 33. Anti-rotation cylinder; 34. Pressure ring; 35. Spacer ring; 361. Rubber cylinder lock ring seat; 362. Rubber cylinder lock ring; 37. Flat key;
41、上接头；42、丢手中心管；43、丢手接头；44、丢手剪钉；45、第三泄压孔；41. Upper joint; 42. Hands-off center pipe; 43. Hands-off joint; 44. Hands-on shear nail; 45. The third pressure relief hole;
5、中心管；51、中心管限位座；52、底部堵头。5. Center pipe; 51. Center pipe limit seat; 52. Bottom plug.
具体实施方式detailed description
为使本实用新型解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面结合附图并通过具体实施方式来进一步说明本实用新型的技术方案。In order to make the technical problem solved by the utility model, the adopted technical solution and the achieved technical effect clearer, the technical solution of the utility model will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
如图1-图5所示，本实用新型提供了一种液压锚定密封装置，包括锚定机构、胶筒座封机构、丢手机构以及活塞机构，活塞机构用于驱动锚定机构实现与套管的锚定、驱动胶筒座封机构膨胀封隔套管以及驱动丢手机构实现液压锚定密封装置的丢手动作，且活塞机构同向分布驱动锚定机构和胶筒座封机构，在液压锚定密封装置完全固定后再膨胀封隔套管，锚定和密封的效果好，有利于后期的斜向开窗工序。As shown in Figures 1 to 5, the utility model provides a hydraulic anchoring and sealing device, including an anchoring mechanism, a rubber cylinder seat seal mechanism, a hand-losing mechanism and a piston mechanism, and the piston mechanism is used to drive the anchoring mechanism to achieve the same The anchoring of the casing, the driving of the rubber cartridge seat seal mechanism to expand and seal the casing, and the drive of the release mechanism to realize the release action of the hydraulic anchor sealing device, and the piston mechanism is distributed in the same direction to drive the anchor mechanism and the rubber cartridge seat seal mechanism. After the hydraulic anchoring and sealing device is completely fixed, the sealing casing is expanded, and the anchoring and sealing effect is good, which is beneficial to the later oblique window opening process.
锚定机构包括锥体11、卡瓦组件12及卡瓦锁环组件13，卡瓦锁环组件13固定于中心管5，锥体11套设于中心管5外并与活塞机构连接，卡瓦组件12包括与锥体11下端的锥形端部连接的卡瓦121，卡瓦121为单排卡瓦，锥体11在活塞机构的驱动下将卡瓦121的卡齿嵌入套管内，卡瓦锁环组件13用于锁定卡瓦121相对套管的运动方向。卡瓦锁环组件13限制卡瓦121只能相对套管向下运动，使锚定机构通过单个卡瓦121不仅限制了液压锚定密封装置周向位置，而且通过使锚定机构可以承受双向作用力，从而限制了液压锚定密封装置的轴向位置，防止卡瓦121向上脱离套管，加强了锚定机构的固定效果。The anchor mechanism includes a cone 11, a slip assembly 12 and a slip lock ring assembly 13. The slip lock ring assembly 13 is fixed on the center tube 5, the cone 11 is sleeved outside the center tube 5 and connected with the piston mechanism, and the slips The assembly 12 includes slips 121 connected to the tapered end of the lower end of the cone 11. The slips 121 are a single row of slips. Driven by the piston mechanism, the cone 11 inserts the teeth of the slips 121 into the casing. The locking ring assembly 13 is used to lock the moving direction of the slips 121 relative to the casing. The slip lock ring assembly 13 restricts the slips 121 to move downward relative to the casing, so that the anchoring mechanism not only limits the circumferential position of the hydraulic anchor sealing device through a single slip 121, but also allows the anchoring mechanism to withstand two-way action Force, thereby limiting the axial position of the hydraulic anchoring sealing device, preventing the slips 121 from breaking away from the casing upwards, and strengthening the fixing effect of the anchoring mechanism.
具体而言，卡瓦组件12还包括卡瓦座122，卡瓦座122与活塞机构连接，卡瓦121位于锥体11下端的锥形端部与卡瓦座122之间。如图4和图5所示，卡瓦锁环组件13包括设置于锥体11与中心管5之间的卡瓦锁环132以及卡瓦锁环座131，卡瓦锁环座131固定于中心管5的上端，且位于中心管5与锥体11之间，卡瓦锁环132套设于卡瓦锁环座131外，卡瓦锁环132和卡瓦锁环座131具有相互配合的倒齿，卡瓦锁环座131的倒齿沿中心管5的轴线方向向下倾斜设置。其中，卡瓦锁环座131的倒齿的上端面沿中心管5的轴线方向向下倾斜设置，可以使与之配合的卡瓦锁环132沿倒齿的上端面向下滑动；卡瓦锁环座131的倒齿的下端面可以与上端面一样，沿中心管5的轴线方向向下倾斜设置，也可以水平设置，可以阻挡卡瓦锁环132向上移动，从而限定了锚定机构只能单向移动，即卡瓦121只能相对套管向下移动，可以防止卡瓦121脱离套管，加强了锚定机构的固定效果。Specifically, the slip assembly 12 further includes a slip seat 122 connected to the piston mechanism, and the slip 121 is located between the tapered end of the lower end of the cone 11 and the slip seat 122 . As shown in Figure 4 and Figure 5, the slip lock ring assembly 13 includes a slip lock ring 132 and a slip lock ring seat 131 arranged between the cone 11 and the central tube 5, and the slip lock ring seat 131 is fixed at the center The upper end of the tube 5 is located between the central tube 5 and the cone 11. The slip lock ring 132 is sleeved outside the slip lock ring seat 131. The slip lock ring 132 and the slip lock ring seat 131 have inverted Teeth, the inverted teeth of the slip lock ring seat 131 are arranged obliquely downward along the axial direction of the central pipe 5 . Wherein, the upper end surface of the inverted tooth of the slip lock ring seat 131 is inclined downward along the axial direction of the central tube 5, so that the slip lock ring 132 matched with it can slide downward along the upper end surface of the inverted tooth; The lower end surface of the inverted tooth of seat 131 can be the same as the upper end surface, and it can be arranged obliquely downward along the axial direction of central tube 5, or it can be arranged horizontally, which can block the upward movement of slip lock ring 132, thereby limiting the anchoring mechanism. In other words, the slips 121 can only move downward relative to the casing, which can prevent the slips 121 from breaking away from the casing, and strengthen the fixing effect of the anchoring mechanism.
本实用新型中的活塞机构包括下活塞组件、上活塞组件和丢手活塞组件，下活塞组件用于驱动锚定机构固定，上活塞221机构用于驱动胶筒座封机构封隔套管，上活塞组件和下活塞组件同向分布完成上述两步。The piston mechanism in the utility model includes a lower piston assembly, an upper piston assembly and a hands-off piston assembly. The lower piston assembly is used to drive the anchoring mechanism to fix, the upper piston 221 mechanism is used to drive the sealing sleeve of the rubber cylinder seat seal mechanism, and the upper The piston assembly and the lower piston assembly are distributed in the same direction to complete the above two steps.
如图1和图3所示，下活塞组件包括下活塞211和下活塞缸212，下活塞组件设置于整个液压锚定密封装置的下端，中心管5的下端通过中心管限位座51和底部堵头52对下活塞组件进行限位，下活塞211套设于中心管5外，下活塞缸212套设于下活塞211外并与卡瓦座122固定，中心管5的上端设置有第一传压孔214，第一传压孔214依次贯穿中心管5和下活塞211，并与下活塞211和下活塞缸212之间的第一腔体213连通，中心管5与下活塞211通过下活塞剪钉215固定。流体通过第一传压孔214进入第一腔体213内对下活塞211施加向下的作用力，随着流体的压力的增大，驱动下活塞211向下运动的流体压力将下活塞剪钉215剪断，从而推动下活塞211向下运动，下活塞211将带动锥体11向下，锥体11下端的锥形端部将卡瓦121推向套管方向，从而使卡瓦121的卡齿嵌入套管内，实现与套管的固定；此过程中，卡瓦锁环132沿卡瓦锁环座131的倒齿的上端面向下滑动，又收到倒齿的下端面的阻挡，限制锚定机构的运动方向，加强锚定的固定效果。As shown in Figures 1 and 3, the lower piston assembly includes a lower piston 211 and a lower piston cylinder 212, the lower piston assembly is arranged at the lower end of the entire hydraulic anchor sealing device, and the lower end of the central tube 5 passes through the central tube limit seat 51 and the bottom The plug 52 limits the position of the lower piston assembly. The lower piston 211 is sleeved outside the central tube 5. The lower piston cylinder 212 is sleeved outside the lower piston 211 and fixed with the slip seat 122. The upper end of the central tube 5 is provided with a first The pressure transmission hole 214, the first pressure transmission hole 214 runs through the central tube 5 and the lower piston 211 in turn, and communicates with the first cavity 213 between the lower piston 211 and the lower piston cylinder 212, and the central tube 5 and the lower piston 211 pass through the lower piston 211. The piston scissors 215 are fixed. The fluid enters the first cavity 213 through the first pressure transmission hole 214 and exerts a downward force on the lower piston 211. As the pressure of the fluid increases, the fluid pressure driving the lower piston 211 to move downward will shear the lower piston. 215 cut off, so as to push the lower piston 211 to move downward, the lower piston 211 will drive the cone 11 downward, and the tapered end of the lower end of the cone 11 will push the slip 121 to the casing direction, so that the snap teeth of the slip 121 Embedded in the bushing to achieve fixation with the bushing; during this process, the slip lock ring 132 slides downward along the upper end face of the inverted teeth of the slip lock ring seat 131, and is blocked by the lower end face of the inverted teeth to limit anchoring The movement direction of the mechanism strengthens the fixing effect of the anchor.
此外，下活塞缸212的下端设置有第一泄压孔216，随着下活塞211向下运动，下活塞211、中心管限位座51及下活塞缸212围成的空腔的压力逐渐增大，为避免影响下活塞211向下运动，空腔内的流体可以通过第一泄压孔216排出，维持液压锚定密封装置内部压力正常。In addition, the lower end of the lower piston cylinder 212 is provided with a first pressure relief hole 216. As the lower piston 211 moves downward, the pressure in the cavity surrounded by the lower piston 211, the central tube limit seat 51 and the lower piston cylinder 212 gradually increases. Large, in order to avoid affecting the downward movement of the lower piston 211, the fluid in the cavity can be discharged through the first pressure relief hole 216 to maintain the normal internal pressure of the hydraulic anchor sealing device.
本实用新型中活塞机构还包括上活塞221组件和丢手活塞组件，上活塞组件包括上活塞221、上活塞缸222和定向筒223；丢手活塞组件包括丢手活塞231和丢手活塞缸232；胶筒座封机构包括与锥体11的上端固定的衬管31，衬管31和锥体11可以通过螺纹连接固定，装配方便，固定可靠；衬管31外由下至上套设有多个胶筒32和防转筒33，相邻的胶筒32之间设置有隔环35，胶筒32与锥体11之间、胶筒32与防转筒33之间均设置有压环34，隔环35和压环34可以减少锥体11和防转筒33对胶筒32的磨损，有利于胶筒32受压膨胀封隔套管；防转筒33与衬管31通过平键37连接，防止防转筒33转动，防转筒33通过定向筒223与上活塞221连接。In the utility model, the piston mechanism also includes an upper piston 221 assembly and a hands-off piston assembly. The upper piston assembly includes an upper piston 221, an upper piston cylinder 222 and an orientation cylinder 223; The rubber cartridge seat seal mechanism includes a liner 31 fixed to the upper end of the cone 11, and the liner 31 and the cone 11 can be fixed by threaded connection, which is convenient for assembly and reliable in fixing; the outside of the liner 31 is provided with a plurality of The rubber cylinder 32 and the anti-rotation cylinder 33 are provided with a spacer ring 35 between the adjacent rubber cylinders 32, and the pressure ring 34 is arranged between the rubber cylinder 32 and the cone 11, between the rubber cylinder 32 and the anti-rotation cylinder 33, The spacer ring 35 and the pressure ring 34 can reduce the abrasion of the rubber sleeve 32 by the cone 11 and the anti-rotation cylinder 33, which is beneficial for the rubber sleeve 32 to expand the sealing sleeve under pressure; the anti-rotation cylinder 33 and the liner 31 are connected by a flat key 37 , prevent the anti-rotation cylinder 33 from rotating, and the anti-rotation cylinder 33 is connected with the upper piston 221 through the orientation cylinder 223 .
如图2所示，上活塞缸222套设于上活塞221外并与丢手活塞缸232固定，上活塞缸222和上活塞221通过上活塞剪钉226固定，上活塞221的下端与定向筒223通过螺纹连接固定，定向筒223与防转筒33通过导向键227固定，上活塞221的上端与丢手活塞组件围成第二腔体224，第二腔体224与第二传压孔225连通。As shown in Figure 2, the upper piston cylinder 222 is sleeved outside the upper piston 221 and fixed with the hands-off piston cylinder 232, the upper piston cylinder 222 and the upper piston 221 are fixed by the upper piston scissors 226, the lower end of the upper piston 221 is connected to the orientation cylinder 223 is fixed by threaded connection, the orientation cylinder 223 and the anti-rotation cylinder 33 are fixed by the guide key 227, the upper end of the upper piston 221 and the piston assembly of the hands-off piston form a second cavity 224, the second cavity 224 and the second pressure transmission hole 225 connected.
工作时，流体通过第二传压孔225进入第二腔体224内，第二腔体224内的流体对上活塞221施加向下的作用力，随着流体压力的增大，上活塞221与上活塞缸222之间的上活塞剪钉226将被剪断，上活塞221将在流体压力的作用下向下运动，通过定向筒223和防转筒33向胶筒座封机构施加向下的压力，从而压缩多个胶筒32，使胶筒32沿径向膨胀封隔套管内的环形空间，完成对套管环空的密封。When working, the fluid enters the second cavity 224 through the second pressure transmission hole 225, and the fluid in the second cavity 224 exerts a downward force on the upper piston 221. As the fluid pressure increases, the upper piston 221 and the upper piston 221 The upper piston shear pin 226 between the upper piston cylinder 222 will be cut off, the upper piston 221 will move downward under the action of fluid pressure, and apply downward pressure to the rubber cylinder seat seal mechanism through the orientation cylinder 223 and the anti-rotation cylinder 33 , thereby compressing a plurality of rubber sleeves 32, so that the rubber sleeves 32 expand radially to seal off the annular space in the casing, and complete the sealing of the casing annulus.
在此基础上，衬管31与防转筒33之间设置有胶筒锁环362、胶筒锁环座361和限位环，胶筒锁环座361固定于衬管31，胶筒锁环362套设于胶筒锁环座361外，胶筒锁环362和胶筒锁环座361具有相互配合的倒齿，胶筒锁环座361的倒齿沿衬管31的轴线方向向下倾斜设置，限位环设置于胶筒锁环362的上方，对胶筒锁环362起到限位的作用。胶筒锁环362和胶筒锁环座361的结构和工作原理与卡瓦锁环组件13相同，通过限定防转筒33的运动方向从而限制上活塞组件的运动方向，防止上活塞组件在胶筒32的膨胀力的作用下反向运动，从而提高座封的效果。On this basis, a rubber cartridge lock ring 362, a rubber cartridge lock ring seat 361 and a limit ring are arranged between the liner 31 and the anti-rotation cylinder 33, the rubber cartridge lock ring seat 361 is fixed on the liner 31, and the rubber cartridge lock ring 362 is sleeved outside the rubber cartridge lock ring seat 361, the rubber cartridge lock ring 362 and the rubber cartridge lock ring seat 361 have inverted teeth that cooperate with each other, and the inverted teeth of the rubber cartridge lock ring seat 361 are inclined downward along the axial direction of the liner 31 Setting, the limit ring is arranged on the top of the rubber cartridge lock ring 362 to limit the rubber cartridge lock ring 362 . The structure and working principle of the rubber cartridge lock ring 362 and the rubber cartridge lock ring seat 361 are the same as those of the slip lock ring assembly 13. By limiting the movement direction of the anti-rotation cylinder 33, the movement direction of the upper piston assembly is limited to prevent the upper piston assembly from Under the action of the expansion force of the barrel 32, it moves in the opposite direction, thereby improving the effect of the seat seal.
丢手活塞缸232套设于丢手活塞231外并与上活塞缸222固定，丢手活塞231的内表面固定有丢手机构，丢手活塞231、上活塞221和丢手机构中的丢手中心管42围成第二腔体224，丢手中心管42上设置有第二传压孔225，第二传压孔225与第二腔体224连通。丢手机构还包括上接头41和丢手接头43，上接头41套设于丢手活塞231外并与丢手活塞缸232的上端固定，丢手中心管42套设于上活塞221内，并与丢手活塞231的固定，丢手中心管42的下端与丢手接头43通过螺纹连接固定，丢手接头43通过丢手剪钉44与中心管5固定。The hands-off piston cylinder 232 is set outside the hands-off piston 231 and is fixed with the upper piston cylinder 222. The inner surface of the hands-off piston 231 is fixed with a hands-off mechanism, the hands-off piston 231, the upper piston 221 and the hands-off mechanism in the hands-off mechanism. The central tube 42 encloses a second cavity 224 , and the central tube 42 is provided with a second pressure transmission hole 225 , and the second pressure transmission hole 225 communicates with the second cavity 224 . The hands-off mechanism also includes an upper joint 41 and a hands-off joint 43. The upper joint 41 is sleeved outside the hands-off piston 231 and is fixed with the upper end of the hands-off piston cylinder 232. The center pipe 42 is sleeved in the upper piston 221, and With the fixing of the hands-off piston 231, the lower end of the center pipe 42 and the hands-free joint 43 are fixed by being threaded, and the hands-free joint 43 is fixed with the central pipe 5 by the hands-free shear nails 44.
在上活塞221受到第二腔体224内的流体的向下的压力作用的同时，丢手活塞231受到流体向上的作用力，当向上的流体压力增大到一定程度时，丢手剪钉44断开，从而丢手机构与中心管5的连接断开，丢手机构、丢手活塞组件和上活塞组件将于液压锚定密封装置中的其它部件脱离，起出丢手机构、丢手活塞组件和上活塞组件，完成液压锚定密封装置与套管的锚定及套管的座封。While the upper piston 221 is subjected to the downward pressure of the fluid in the second cavity 224, the hands-off piston 231 is subjected to the upward force of the fluid. When the upward fluid pressure increases to a certain extent, the hands-off shears 44 Disconnect, so that the connection of the hands-free mechanism and the central pipe 5 is disconnected, the hands-free mechanism, the hands-free piston assembly and the upper piston assembly will be separated from other parts in the hydraulic anchor sealing device, and the hands-free mechanism, the hands-free piston assembly will be removed. The assembly and the upper piston assembly complete the anchoring of the hydraulic anchor sealing device and the casing and the sealing of the casing.
在上述基础上，定向筒223和丢手活塞缸232上分别设置有第二泄压孔233和第三泄压孔45，其具体的工作原理和作用与第一泄压孔216相同，此处不再赘述。本实用新型中各部件之间的连接处通过密封圈密封，防止流体泄漏，以保证正常工作需要的压力。本实用新型中的上接头41的扣型为石油行业的标准扣型，便于与现场装置连接，其他部件的扣型也使用标准扣型，便于部件的加工和密封。On the basis of the above, the second pressure relief hole 233 and the third pressure relief hole 45 are respectively provided on the directional cylinder 223 and the hands-off piston cylinder 232, the specific working principle and function of which are the same as those of the first pressure relief hole 216, here No longer. In the utility model, the joints between the components are sealed by sealing rings to prevent fluid leakage and ensure the pressure required for normal work. The buckle type of the upper joint 41 in the utility model is the standard buckle type of the petroleum industry, which is convenient to connect with the field device, and the buckle type of other parts also uses the standard buckle type, which is convenient for processing and sealing of the parts.
本实用新型中的液压锚定密封装置的具体工作流程如下：The specific working process of the hydraulic anchor sealing device in the utility model is as follows:
1、锚定机构、活塞机构、胶筒座封机构和丢手机构组装后下入井筒的指定位置，地面设备通管送入管柱打压，流体通过第一传压孔214和第二传压孔225分别进入第一腔体213和第二腔体224内；1. After the assembly of the anchor mechanism, piston mechanism, rubber cartridge seat seal mechanism and the release mechanism, they are lowered into the designated position of the wellbore, the ground equipment is sent into the pipe string for pressure, and the fluid passes through the first pressure transmission hole 214 and the second pressure transmission hole 214. The holes 225 respectively enter the first cavity 213 and the second cavity 224;
2、当流体的压力升到第一级压力时，下活塞剪钉215断裂，下活塞211向下运动，锥体11推动卡瓦121卡入套管内，并通过卡瓦锁环组件13完成液压锚定密封装置的固定；2. When the pressure of the fluid reaches the first level, the lower piston shear pin 215 breaks, the lower piston 211 moves downward, the cone 11 pushes the slip 121 into the casing, and completes the hydraulic pressure through the slip lock ring assembly 13. Fixing of anchor seals;
3、当流体的压力升到第二级压力时，上活塞剪钉226断裂，上活塞221向下运动，上活塞组件压紧胶筒座封机构，使胶筒32沿径向膨胀封隔套管的环形空间；3. When the fluid pressure rises to the second level pressure, the upper piston scissor pin 226 breaks, the upper piston 221 moves downward, and the upper piston assembly presses the rubber cylinder seat seal mechanism, so that the rubber cylinder 32 expands the packing sleeve in the radial direction the annular space of the pipe;
4、当流体的压力升到第三级压力时，丢手活塞231剪钉断裂，丢手活塞231向上运动，起出与液压锚定密封装置的其它部件脱离的上活塞组件、丢手机构和丢手活塞组件，完成液压锚定密封装置与套管的锚定及套管的座封。4. When the pressure of the fluid rises to the third level pressure, the shear pin of the throwing piston 231 breaks, and the throwing piston 231 moves upwards, and the upper piston assembly, the throwing mechanism and the other parts of the hydraulic anchor sealing device are pulled out. Throw away the piston assembly to complete the anchoring of the hydraulic anchor sealing device and the casing and the sealing of the casing.
以上内容仅为本实用新型的较佳实施例，对于本领域的普通技术人员，依据本实用新型的思想，在具体实施方式及应用范围上均会有改变之处，本说明书内容不应理解为对本实用新型的限制。The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720311471.3UCN206888948U (en) | 2017-03-28 | 2017-03-28 | A kind of Hydraulic Anchorage sealing device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720311471.3UCN206888948U (en) | 2017-03-28 | 2017-03-28 | A kind of Hydraulic Anchorage sealing device |
| Publication Number | Publication Date |
|---|---|
| CN206888948Utrue CN206888948U (en) | 2018-01-16 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720311471.3UExpired - Fee RelatedCN206888948U (en) | 2017-03-28 | 2017-03-28 | A kind of Hydraulic Anchorage sealing device |
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| CN (1) | CN206888948U (en) |
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|---|---|---|---|---|
| CN108386159A (en)* | 2018-03-07 | 2018-08-10 | 西南石油大学 | A kind of scraper auto-extending is convenient to control device of strike-ofing |
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| CN108386159A (en)* | 2018-03-07 | 2018-08-10 | 西南石油大学 | A kind of scraper auto-extending is convenient to control device of strike-ofing |
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| CN114991708A (en)* | 2022-05-30 | 2022-09-02 | 盐城他山石液压机械有限公司 | Anti-loosening self-locking bridge plug |
| CN114991708B (en)* | 2022-05-30 | 2023-09-12 | 盐城他山石液压机械有限公司 | Locking auto-lock bridging plug that moves |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20180116 Termination date:20190328 |