CN2744826Y - Thermal recovery horizontal well casing prestress completion device - Google Patents
Thermal recovery horizontal well casing prestress completion device Download PDFInfo
- Publication number
- CN2744826Y CN2744826Y CN 200420108488 CN200420108488U CN2744826Y CN 2744826 Y CN2744826 Y CN 2744826Y CN 200420108488 CN200420108488 CN 200420108488 CN 200420108488 U CN200420108488 U CN 200420108488U CN 2744826 Y CN2744826 Y CN 2744826Y
- Authority
- CN
- China
- Prior art keywords
- horizontal well
- ball seat
- main body
- thermal recovery
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a casing prestress completion device for a thermal recovery horizontal well and a detecting and drilling horizontal well. The upper end of a suspension main body (2) is connected with a reversed buckle joint (1) through screw threads, and the center part of the suspension main body (2) is sheathed with slips (3) and a hydraulic cylinder (4). A suspension part is composed of the parts, the upper end of the reversed buckle joint (1) and the lower end of the suspension main body (2) are respectively connected with a drilling tool (18) and a tail pipe (19). A coupling clamp (5) is connected with the tail pipe (19) through the screw threads, and the lower end of the coupling clamp (5) is connected with an anchoring body (12) through a connecting pipe nipple (10). The utility model which is of simple structure, of reliable operation and of utility can achieve the casing prestress completion for the thermal recovery horizontal well and the detecting and drilling horizontal well under the action of hydraulic pressure and pulling for the purposes of extending the service life of the thermal recovery horizontal well and the detecting and drilling horizontal well and reducing production cost.
Description
Technical field:
The utility model relates to a kind of horizontal well thermal recovery, sidetrack horizontal well completion system of being used for.
Background technology:
The prestressing force completion is the completion mode that conventional thick oil thermal extraction production string adopts usually.Along with the continuity of oil field development process and the development of drilling technology, horizontal well thermal recovery, sidetracked hole are more and more used in recent years.Yet, because the particularity of horizontal well, sidetracked hole technology, horizontal well thermal recovery production string prestressing force completion technique does not obtain implementing as yet, thereby cause the distortion of horizontal well thermal recovery, sidetrack horizontal well production string, bad break easily, even scrap, and then influence long-term stable yields of horizontal well thermal recovery and life-span, and make the thickened oil recovery cost up.
Summary of the invention:
The purpose of this utility model is to provide a kind of horizontal well thermal recovery sleeve pipe prestressing force completion system that can reduce horizontal well thermal recovery, the damage of sidetrack horizontal well sleeve pipe, prolongation oil well life-span, reduce the thickened oil recovery cost.
The utility model is to realize like this.This kind completion system is made up of suspension and grappling two parts, hangs by lifting of anchor portion grappling and suspended portion and realizes horizontal well thermal recovery, sidetrack horizontal well prestressing force completion.The suspended portion of this device is made up of back-off joint, suspension main body, removable slips, fluid cylinder, and anchor portion is made up of box cupling, piston, steel ball, ball seat, ball seat shear pin, connection pipe nipple, ball seat guardrail, grappling body, thrust ring, thrust bearing pin, draw ring, anchor fluke, anchor fluke axle.The course of work of this device is as follows: the anchor portion of this device is threaded in horizontal well, sidetrack horizontal well production string (tail pipe) lower end by normal sleeve, suspension arrangement is connected the production string upper end, and back-off joint and drilling tool are by being threaded onto well head; Injecting liquid moves upward by the hole promotion fluid cylinder drive slips that hangs on the main body, be provided with the conical surface owing to hang main body, make slips protruding, contact interlock with intermediate casing, suspended portion is suspended on the protective casing (being intermediate casing), finishes the suspension of sleeve pipe; In drilling tool, inject liquid by the ground slush pump, make pump pressure rising in the device, under pump function, promote steel ball and drive descent of piston, promote anchor fluke by thrust ring, thrust bearing pin and draw ring and open the wedging stratum; Lift drilling tool by ground and make the tail pipe elongation, be subjected to the prestressing force that stretches; The rising pump pressure makes the slips wedging intermediate casing of suspended portion, realizes the suspension of production string; Continue to improve pump pressure and cut off the ball seat pin, ball seat is pushed the ball seat guardrail, discharge the ground pump pressure; By the back-off joint drilling tool is poured out in the well, horizontal well, the construction of sidetrack horizontal well prestressing force completion are finished.
The utility model is simple in structure, reliable operation, practicality, utilize this device and to lift and finish horizontal well thermal recovery, sidetrack horizontal well sleeve pipe prestressing force completion under the effect, thereby reach the purpose that prolongs horizontal well thermal recovery, sidetrack horizontal well life-span, reduces cost of winning at hydraulic pressure.
Description of drawings:
Accompanying drawing is the structural representation of the utility model under in working order.
Among the figure, label " 18 " is a drilling tool, and " 19 " are tail pipe (being production string), and " 20 " are centralizer, and " 21 " are the stratum, and " 22 " are intermediate casing (being protective casing).
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model is by back-off joint 1, hang main body 2, removable slips 3, fluid cylinder 4, box cupling 5, piston 6, steel ball 7, ball seat 8, ball seat shear pin 9, connect pipe nipple 10, ball seat guardrail 11, grappling body 12, thrust ring 13, thrust bearing pin 14, draw ring 15, anchor fluke 16, anchor fluke axle 17 is formed, its structure, assembled relation is as follows: hang main body 2 upper ends and be connected with back-off joint 1 with screw thread, the middle part is set with slips 3 and fluid cylinder 4, constitute the suspended portion of this device with upper-part, back-off joint 1 upper end with hang main body 2 lower ends and be connected with tail pipe 19 with drilling tool 18 respectively; Box cupling 5 is connected with tail pipe 19 with screw thread, and the lower end is connected with grappling body 12 by connecting pipe nipple 10; Piston 6 is housed in the box cupling 5, is provided with steel ball 7 and ball seat 8 in the piston 6, the bottom is provided with ball seat guardrail 11, is connected to a fixed with ball seat shear pin 9 between piston 6 and the ball seat 8; Be provided with thrust ring 13 in the grappling body 12, thrust ring 13 belows are provided with thrust bearing pin 14, two draw rings 15 are housed on the thrust bearing pin 14, two draw ring 15 lower ends become movable with anchor fluke 16 tops separately and are connected, two anchor fluke 16 lower ends separately with 17 one-tenth movable connections of an anchor fluke axle, constitute the anchor portion of this device with upper-part.Wherein, hang main body 2 and be as general as a tubular body, its middle and upper part periphery has a step, and it is the conical surface down, and the bottom tube wall is provided with through hole, and upper and lower end is respectively equipped with to be connected with tail pipe 19 with drilling tool 18 uses internal thread.Piston 6 is a hollow circular cylinder, and its upper end is bell mouth shape, and top is provided with side opening, and inner headed face matches with the ball seat 8 that sets within it, and the middle and lower part is provided with ball seat guardrail 11.Grappling body 12 is a pipe body, and its upper end is provided with and is connected the internal thread that pipe nipple 10 matches, and top inner headed face and piston 6 and thrust ring 13 external diameters match, and the bottom is provided with the anchor mechanism that is made of thrust bearing pin 14, draw ring 15, anchor fluke 16 and anchor fluke axle 17.
Claims (1)
1, a kind of horizontal well thermal recovery sleeve pipe prestressing force completion system, by back-off joint (1), hang main body (2), removable slips (3), fluid cylinder (4), box cupling (5), piston (6), steel ball (7), ball seat (8), ball seat shear pin (9), connect pipe nipple (10), ball seat guardrail (11), grappling body (12), thrust ring (13), thrust bearing pin (14), draw ring (15), anchor fluke (16), anchor fluke axle (17) is formed, it is characterized in that: hang main body (2) upper end and be connected with back-off joint (1) with screw thread, the middle part is set with slips (3) and fluid cylinder (4), constitute the suspended portion of this device with upper-part, back-off joint (1) upper end and suspension main body (2) lower end are connected with tail pipe (19) with drilling tool (18) respectively; Box cupling (5) is connected with tail pipe (19) with screw thread, and the lower end is connected with grappling body (12) by connecting pipe nipple (10); Piston (6) is housed in the box cupling (5), is provided with steel ball (7) and ball seat (8) in the piston (6), the bottom is provided with ball seat guardrail (11), is connected to a fixed with ball seat shear pin (9) between piston (6) and the ball seat (8); Be provided with thrust ring (13) in the grappling body (12), thrust ring (13) below is provided with thrust bearing pin (14), two draw rings (15) are housed on the thrust bearing pin (14), two draw rings (15) lower end becomes movable with an anchor fluke (16) top separately and is connected, and two anchor flukes (16) lower end becomes movable with an anchor fluke axle (17) separately and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108488 CN2744826Y (en) | 2004-10-21 | 2004-10-21 | Thermal recovery horizontal well casing prestress completion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108488 CN2744826Y (en) | 2004-10-21 | 2004-10-21 | Thermal recovery horizontal well casing prestress completion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744826Y true CN2744826Y (en) | 2005-12-07 |
Family
ID=35579607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420108488 Expired - Fee Related CN2744826Y (en) | 2004-10-21 | 2004-10-21 | Thermal recovery horizontal well casing prestress completion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744826Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913161A (en) * | 2012-11-16 | 2013-02-06 | 西安鼎盛石油科技有限责任公司 | Straightening and anchoring device applied to horizontal open hole well |
| CN103899264A (en) * | 2012-12-28 | 2014-07-02 | 中国石油化工股份有限公司 | Lift prestress ground anchor device for well cementation and completion on top of screen pipe of oil-gas well and application method |
| CN107269228A (en) * | 2016-04-07 | 2017-10-20 | 中国石油化工股份有限公司 | The complete safe completion tubular column of well section prestressing force of horizontal well thermal recovery and method |
| CN111577218A (en) * | 2020-04-28 | 2020-08-25 | 大庆长垣能源科技有限公司 | Short-radius and ultrashort-radius horizontal well completion process |
-
2004
- 2004-10-21 CN CN 200420108488 patent/CN2744826Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913161A (en) * | 2012-11-16 | 2013-02-06 | 西安鼎盛石油科技有限责任公司 | Straightening and anchoring device applied to horizontal open hole well |
| CN103899264A (en) * | 2012-12-28 | 2014-07-02 | 中国石油化工股份有限公司 | Lift prestress ground anchor device for well cementation and completion on top of screen pipe of oil-gas well and application method |
| CN103899264B (en) * | 2012-12-28 | 2016-08-10 | 中国石油化工股份有限公司 | The application process of Oil/gas Well screen casing top well cementation completion lifting prestressed ground anchor device |
| CN107269228A (en) * | 2016-04-07 | 2017-10-20 | 中国石油化工股份有限公司 | The complete safe completion tubular column of well section prestressing force of horizontal well thermal recovery and method |
| CN111577218A (en) * | 2020-04-28 | 2020-08-25 | 大庆长垣能源科技有限公司 | Short-radius and ultrashort-radius horizontal well completion process |
| CN111577218B (en) * | 2020-04-28 | 2020-12-01 | 大庆长垣能源科技有限公司 | Short-radius and ultrashort-radius horizontal well completion process |
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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: 20051207 Termination date: 20101021 |