CN201424934Y - Hydraulic releasing cement squeezing tool - Google Patents
Hydraulic releasing cement squeezing tool Download PDFInfo
- Publication number
- CN201424934Y CN201424934Y CN2009200144411U CN200920014441U CN201424934Y CN 201424934 Y CN201424934 Y CN 201424934Y CN 2009200144411 U CN2009200144411 U CN 2009200144411U CN 200920014441 U CN200920014441 U CN 200920014441U CN 201424934 Y CN201424934 Y CN 201424934Y
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- Prior art keywords
- cone
- spring
- central tube
- slips
- pin
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic releasing cement squeezing tool, which comprises a hydraulic releasing part, a rotating seat sealing part and a liquid unidirectional flow control part, and the three parts are sequentially connected from top to bottom. The utility model has the advantages of reasonable design, novel structure, convenient operation and reliable operation, the device combines mechanical operation and hydraulic operation so as to overcome the defect of single mechanical operation and fundamentally solve the problems that tubular columns need to be arranged many times in the dust squeezing and coat sealing operation of a slim-hole sidetracking well, and cement slurry flows back to jam drilling and the like, the operational efficiency is improved, and the workover construction period is shortened.
Description
Technical field:
The utility model relates to a kind of downhole tool that is used for oil field slim-hole sidetracked hole squeeze method water blockoff seal.
Background technology:
Along with the prolongation of oil field development time and the development of drilling technology, the slim-hole sidetracked hole is used scale and is day by day increased.At present, on-the-spot carrying out the slim-hole sidetracked hole when squeezing grey operation, adopt prior next drillable bridging plug usually or utilize conventional packer to carry out.Need down tubing string twice after finishing with drillable bridging plug mode, because prolonged the well workover cycle, and phenomenon that sleeve pipe is ground away appears in milling bridging plug often after the operation; Adopt conventional packer that cement then can take place and flow backwards, cause tubing string to be blocked and squeeze ash and fail.
The utility model content:
The purpose of this utility model is to provide a kind of and can realizes only can squeezing ash with one-trip string and can prevent hydraulic pressure that cement flows backwards, shortens the well workover cycle squeeze method instrument of giving up.
The utility model purpose is achieved in that this kind squeeze method instrument comprises that hydraulic pressure is given up partly, rotating seat seals part and liquid one-way flow control section, and three parts connect from top to bottom successively.Wherein, hydraulic pressure is given up and partly is made up of top connection, pin, piston, exterior central tube, lock dog, upper slips, the exterior central tube upper end is connected with top connection with screw thread, and the outside is provided with piston and is connected with exterior central tube with pin, and the exterior central tube outside is set with lock dog and upper slips.Rotating seat envelope part is that the Y211-80 packer is by upper cone, long packing element type, spacer ring, short rubber cylinder, inner central tube, the cone pressure cap, lower cone, lower slips, the centralizer body spring, centralizer body, wiper block, semielliptic spring, nail shape hook, backing-up screw, tube connector is formed, the inner central tube upper and lower side is connected with lower cone with upper cone with screw thread respectively, its outer upper is set with two joint long packing element types, spacer ring and a short rubber cylinder, the middle part is provided with cone pressure cap and lower cone, the lower cone below is provided with lower slips successively, the centralizer body spring, centralizer body, wiper block and nail shape hook, be provided with semielliptic spring between wiper block and the centralizer body, nail shape hook is tightened by backing-up screw and centralizer body.Liquid one-way flow control section is a ball-and-seat, is made up of urceolus, plug, spring, spring base, anticreep pin, baffle ring, shear pin and shearing ring.Be provided with plug in the urceolus, be provided with spring therebetween, be provided with baffle ring between urceolus bottom and the plug, and with the anticreep pin urceolus and baffle ring are tightened, the baffle ring lower inside is provided with shearing ring, tightens by the shear pin pin between the two.When the slim-hole sidetracked hole squeezes grey seal operation, after connecing crowded grey instrument under this device, be lowered to pre-reservation envelope position, the seat envelope is transferred in rotation, and ground is suppressed in oil pipe, and high-pressure fluid acts on respectively on two hydraulic cylinders by the aperture of central tube, when reaching 16MPa, cuts off pressure pin, hydraulic cylinder promotes cone under hydraulic action descending, and distending slips, slips are close on the internal surface of sleeve pipe, retaining ring locking is given up simultaneously and crowded grey instrument disengagement realizes giving up; When pressure reaches 20MPa, the ball-and-seat shear pin is cut off, descent of piston, and circulation port is opened, and can carry out normal water squeezing drilling mud practice; After squeezing the ash end, from the ground pressure release, the ball-and-seat piston is up under spring action, and circulation port is shut, and prevents the refluence of cement paste.If desired instrument is taken out, only need cast iron slips with top grind off the back down fishing tool this device can be pulled out.
The utility model is reasonable in design, novel structure, easy to operate, reliable operation, this device combines mechanically actuated with hydraulic operation, can overcome the shortcoming of simple mechanical operation, fundamentally solves the slim-hole sidetracked hole and squeezes problem such as following many times tubing strings and cement paste refluence bit freezing in the grey seal operation, help improving operating efficiency, shorten the well workover construction period.
Description of drawings:
Accompanying drawing is a general structure schematic diagram of the present utility model.
The specific embodiment:
Below in conjunction with accompanying drawing enforcement of the present utility model is illustrated.
As shown in the figure, the utility model comprises hydraulic pressure give up part I, rotating seat envelope part II and liquid one-way flow control section III, and wherein, the hydraulic pressure part I that gives up is made up of top connection 1, pin 2, piston 3, exterior central tube 4, lock dog 5, upper slips 6; Rotating seat envelope part II is made up of upper cone 7, long packing element type 8, spacer ring 9, short rubber cylinder 10, inner central tube 11, cone pressure cap 12, lower cone 13, lower slips 14, slips spring 15, centralizer body 16, wiper block 17, semielliptic spring 18, nail shape hook 19, backing-up screw 20, tube connector 21; Liquid one-way flow control section III is made up of urceolus 22, plug 23, spring 24, spring base 25, anticreep pin 26, baffle ring 27, shear pin 28 and shearing ring 29.The technical data of this squeeze method instrument of giving up is as follows: instrument total length 1.48m, maximum rigid body external diameter
Internal diameter
Packing element decrement 100mm; Seal pressure differential 20-40MPa; Seat seal pressure 8MPa; Operating temperature＜120 ℃; Give up and put pressure 16MPa aside.
Claims (1)
1, a kind of hydraulic pressure squeeze method instrument of giving up, comprise hydraulic pressure give up the part (I), rotating seat envelope part (II) and liquid one-way flow control section (III), it is characterized in that: comprise hydraulic pressure give up the part (I), rotating seat envelope part (II) and liquid one-way flow control section (III), wherein, hydraulic pressure is given up part (I) by top connection (1), pin (2), piston (3), exterior central tube (4), lock dog (5), upper slips (6) is formed, exterior central tube (4) upper end is connected with top connection (1) with screw thread, the outside is provided with piston (3) and is connected with exterior central tube (4) with pin (2), and exterior central tube (4) outside is set with lock dog (5) and upper slips (6); Rotating seat envelope part (II) is that the Y211-80 packer is by upper cone (7), long packing element type (8), spacer ring (9), short rubber cylinder (10), inner central tube (11), cone pressure cap (12), lower cone (13), lower slips (14), slips spring (15), centralizer body (16), wiper block (17), semielliptic spring (18), nail shape hook (19), backing-up screw (20), tube connector (21) is formed, inner central tube (11) upper and lower side is connected with lower cone (13) with upper cone (7) with screw thread respectively, its outer upper is set with two joint long packing element types (8), a spacer ring (9) and a short rubber cylinder (10), the middle part is provided with cone pressure cap (12) and lower cone (13), lower cone (13) below is provided with lower slips (14) successively, centralizer body spring (15), centralizer body (16) and nail shape hook (19), be provided with semielliptic spring (18) between wiper block (17) and the centralizer body (16), nail shape hook (19) is tightened by backing-up screw (20) and centralizer body (16); Liquid one-way flow control section III is a ball-and-seat, form by urceolus (22), plug (23), spring (24), spring base (25), anticreep pin (26), baffle ring (27), shear pin (28) and shearing ring (29), be provided with plug (23) in the urceolus (22), be provided with spring (24) therebetween, be provided with baffle ring (27) between urceolus (22) bottom and the plug (23), and urceolus (22) and baffle ring (27) are tightened with anticreep pin (26), baffle ring (27) lower inside is provided with shearing ring (29), tightens by shear pin (28) between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200144411U CN201424934Y (en) | 2009-06-08 | 2009-06-08 | Hydraulic releasing cement squeezing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200144411U CN201424934Y (en) | 2009-06-08 | 2009-06-08 | Hydraulic releasing cement squeezing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201424934Y true CN201424934Y (en) | 2010-03-17 |
Family
ID=42024381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200144411U Expired - Fee Related CN201424934Y (en) | 2009-06-08 | 2009-06-08 | Hydraulic releasing cement squeezing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201424934Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370241A (en) * | 2014-08-29 | 2016-03-02 | 中国石油化工股份有限公司 | Packing device and method during drilling for abandoning well |
| CN107060679A (en) * | 2017-04-25 | 2017-08-18 | 西南石油大学 | A kind of screw rod hydraulic returnable fishing tool |
| CN112096340A (en) * | 2020-09-27 | 2020-12-18 | 陕西鼎和源瑞环境工程有限公司 | Integrated extrusion-sealed pipe column |
| CN112555564A (en) * | 2021-02-25 | 2021-03-26 | 东营市恒康石油科技开发有限公司 | Leakage-repairing lining pipe for oil well casing |
| CN113445995A (en) * | 2021-08-19 | 2021-09-28 | 西南石油大学 | Temperature testing device used in cooperation with temporary plugging agent |
-
2009
- 2009-06-08 CN CN2009200144411U patent/CN201424934Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370241A (en) * | 2014-08-29 | 2016-03-02 | 中国石油化工股份有限公司 | Packing device and method during drilling for abandoning well |
| CN105370241B (en) * | 2014-08-29 | 2018-08-10 | 中国石油化工股份有限公司 | It is a kind of for abandoned well with boring packing device and method |
| CN107060679A (en) * | 2017-04-25 | 2017-08-18 | 西南石油大学 | A kind of screw rod hydraulic returnable fishing tool |
| CN107060679B (en) * | 2017-04-25 | 2023-04-21 | 西南石油大学 | Screw rod hydraulic pressure can move back formula fishing tool |
| CN112096340A (en) * | 2020-09-27 | 2020-12-18 | 陕西鼎和源瑞环境工程有限公司 | Integrated extrusion-sealed pipe column |
| CN112555564A (en) * | 2021-02-25 | 2021-03-26 | 东营市恒康石油科技开发有限公司 | Leakage-repairing lining pipe for oil well casing |
| CN113445995A (en) * | 2021-08-19 | 2021-09-28 | 西南石油大学 | Temperature testing device used in cooperation with temporary plugging agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20100608 |