CN105178899A - Open well anchoring flushable releasing tool and application of open well anchoring flushable releasing tool in well completion construction - Google Patents
Open well anchoring flushable releasing tool and application of open well anchoring flushable releasing tool in well completion construction Download PDFInfo
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- CN105178899A CN105178899A CN201510432240.3A CN201510432240A CN105178899A CN 105178899 A CN105178899 A CN 105178899A CN 201510432240 A CN201510432240 A CN 201510432240A CN 105178899 A CN105178899 A CN 105178899A
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Abstract
The invention particularly relates to a barefoot well completing tool and a well completion construction technology. An open well anchoring flushable releasing tool is formed by connecting an upper joint, a torque head, a ball, an internal sliding sleeve, a working barrel, an internal washing pipe, a cutting sleeve, a screen pipe, a dowel, clamping teeth, a sliding ring, a shear pin and a lower sliding ring. During construction, the screen pipe and the internal washing pipe are put into a well together. After the washing construction, the pressure ball is thrown into the well so as to to anchor and hang the releasing tool under the well. Pressure is continuously exerted. The upper joint is lifted upwards so as to pull out the upper joint, the ball and the internal washing pipe, and the screen pipe is left under the well. According to the invention, the cutting sleeve is unique in design, so that a small tool can be hung in a large pitshaft, for example, a 90 mm tool can be riveted in a 130 mm borehole. In addition, the screen pipe and the internal washing pipe are put into the well together for flushing operation, so that unsmooth construction, frequent reworking and even well rejection due to a fact that flushing, which causes well expansion, is performed before the screen pipe is put into the well, are avoided .
Description
Technical field
The present invention relates to a kind of oil mining instrument and underground construction technique, particularly relate to a kind of open hole well completion tool and completion construction technology.
Background technology
Completion makes the technique that shaft bottom and oil reservoir get up with certain fabric connectivity after referring to that open hole well brill reaches design well depth.Being last important step of drilling well work, is again the beginning of petroleum production engineering, with recover the oil later, the exploitation of water filling and whole oil gas field is closely connected.And the quality of oil well completion quality directly has influence on oily capacity of well and economic life, can be even related to whole oil field reasonably be developed.
Its operation technique is generally, after brill reaches design well depth, need to rinse well, the sand in flushing place well and chip, then enter screen casing down, carry out perforating job.But in flushing process, often occur the expanding phenomenon of well, cause construction not smooth, often do over again, time serious, well is scrapped.
Summary of the invention
The present invention is exactly for the deficiencies in the prior art, provides a kind of new completion practice instrument, realizes hanging, well cementation, rinses and once complete, and avoids to rinse operation and to construct the adverse effect caused to subsequent technique, improves operating efficiency.
Technical scheme provided by the invention is:
Bore hole grappling washing type dropper, comprise top connection, top connection lower end outer wall is provided with torsion head, inner sliding sleeve is provided with in top connection, torsion head, top connection, inner sliding sleeve is fixed together by shear pin, torsion head lower end inner wall is connected with screen casing, top connection lower end inner wall is connected with interior washing pipe, the wall of top connection bottom between inner sliding sleeve and screen casing is provided with through hole, ball is provided with in through hole, residing for described ball, space is narrowed towards the direction of screen casing, outer wall corresponding with ball on inner sliding sleeve is provided with annular groove, annular groove place is provided with and connects in inner sliding sleeve, the through hole of the external space, inner sliding sleeve lower end is provided with internal projecting ring, tube wall corresponding with ball on screen casing is provided with through hole, torsion head lower end outer wall is connected with seating nipple, torsion head lower end presses closer slip ring, position corresponding with the through hole on screen casing on slip ring is provided with inner groove, unidirectional tooth slip ring outer wall is provided with on Ka Ya and seating nipple lower end inner wall matches, slip ring lower end is connected in the lower slip ring on screen casing outer wall, lower slip ring lower end is connected in the cutting ferrule on screen casing outer wall.Concrete, interior washing pipe is positioned at screen casing.
Concrete, cutting ferrule is fixed on screen casing outer wall by pin.
Present invention also offers the application of described bore hole grappling washing type dropper in constructing with completion, during open hole well completion, described bore hole grappling washing type dropper is down to down-hole desired location, after putting in place, flushing fluid enters down-hole by screen casing and interior washing pipe, is discharged by the ring set space between screen casing and the borehole wall; After flushing completes, drop into pressure ball, the internal projecting ring that pressure ball clashes into inner sliding sleeve lower end cuts off shear pin, inner sliding sleeve glides, and the annular groove on inner sliding sleeve is relative with the through hole in top connection, then continues fluid injection pressurization, liquid applies pressure to slip ring by the through hole on inner sliding sleeve by the through hole in top connection and screen casing, slip ring and lower slip ring descending, Ka Ya is engaged with the unidirectional tooth of seating nipple lower end, cutting ferrule open hang with the open hole well borehole wall on; Move in the space that the annular groove of ball on inner sliding sleeve and the through hole in top connection limit, liquid enters in above-mentioned limited space, along with residing for ball, space to be narrowed towards the direction of screen casing and is being impacted towards inner sliding sleeve direction ball, on put on joint, ball enters in the annular groove space between top connection and inner sliding sleeve, be connected together by ball between top connection and inner sliding sleeve, joint is put in continuation, top connection, ball, interior washing pipe are up in the lump, and screen casing, cutting ferrule, lower slip ring, seating nipple, slip ring, card tooth, torsion head hang with in well.
The present invention has following technical advantage:
1, cutting ferrule design is unique, makes small tools instrument can realize hanging in large pit shaft, as 90mm instrument can rivet in 130mm well.
2, screen casing and interior washing pipe are gone into the well in the lump and are carried out flushing operation, avoid first to rinse to cause well expanding, more lower screen casing, cause construction often not do over again smoothly, the consequence that time serious, well is scrapped.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 be the present invention construct completion after structural representation.
Fig. 3 is the enlarged drawing of part A in Fig. 1.
Washing pipe in 1 top connection 2 torsion head 3 ball 4 inner sliding sleeve 5 seating nipple 6
7 cutting ferrule 8 screen casing 9 pin 10 card tooth 11 slip ring 12 shear pins
13 times slip rings.
Detailed description of the invention
As described in Figure 1, bore hole grappling washing type dropper, comprises top connection.Top connection lower end outer wall is provided with in torsion head, top connection and is provided with inner sliding sleeve, and torsion head, top connection, inner sliding sleeve are fixed together by shear pin, and torsion head lower end inner wall is connected with screen casing, and top connection lower end inner wall is connected with interior washing pipe, and interior washing pipe is positioned at screen casing.The wall of top connection bottom between inner sliding sleeve and screen casing is provided with through hole, is provided with ball in through hole, residing for described ball, space is narrowed towards the direction of screen casing.Outer wall corresponding with ball on inner sliding sleeve is provided with annular groove, annular groove place is provided with and connects in inner sliding sleeve, the through hole of the external space, inner sliding sleeve lower end is provided with internal projecting ring, tube wall corresponding with ball on screen casing is provided with through hole, torsion head lower end outer wall is connected with seating nipple, torsion head lower end presses closer slip ring, position corresponding with the through hole on screen casing on slip ring is provided with inner groove, unidirectional tooth slip ring outer wall is provided with on Ka Ya and seating nipple lower end inner wall matches, slip ring lower end is connected in the lower slip ring on screen casing outer wall, lower slip ring lower end is connected in the cutting ferrule on screen casing outer wall.Cutting ferrule is fixed on screen casing outer wall by pin.
Residing for described ball, space is narrowed towards the direction of screen casing.Described position of narrowing can arrange with on screen casing, and the through hole corresponding with ball namely on screen casing arranges chamfering, as shown in Figure 3.If sphere volume is less, described in the position of narrowing can be arranged in top connection, be namely equivalent to the through hole in top connection be arranged the parts being similar to valve ball seat, this member profile is close to the external surface of spheroid, and restriction ball moves towards screen casing direction.
The application of described bore hole grappling washing type dropper in constructing with completion, during open hole well completion, described bore hole grappling washing type dropper down to down-hole desired location, after putting in place, flushing fluid enters down-hole by screen casing and interior washing pipe, is discharged by the ring set space between screen casing and the borehole wall; After flushing completes, drop into pressure ball, the internal projecting ring that pressure ball clashes into inner sliding sleeve lower end cuts off shear pin, inner sliding sleeve glides, and the annular groove on inner sliding sleeve is relative with the through hole in top connection, then continues fluid injection pressurization, liquid applies pressure to slip ring by the through hole on inner sliding sleeve by the through hole in top connection and screen casing, slip ring and lower slip ring descending, Ka Ya is engaged with the unidirectional tooth of seating nipple lower end, cutting ferrule open hang with the open hole well borehole wall on; Move in the space that the annular groove of ball on inner sliding sleeve and the through hole in top connection limit, liquid enters in above-mentioned limited space, liquid along with residing for ball space to narrow towards the direction of screen casing ball impacted towards inner sliding sleeve direction, on put on joint, ball enters in the annular groove space between top connection and inner sliding sleeve, be connected together by ball between top connection and inner sliding sleeve, joint is put in continuation, top connection, ball, interior washing pipe are up in the lump, and screen casing, cutting ferrule, lower slip ring, seating nipple, slip ring, card tooth, torsion head hang with in well.
Claims (4)
1. bore hole grappling washing type dropper, it is characterized in that, comprise top connection, top connection lower end outer wall is provided with torsion head, inner sliding sleeve is provided with in top connection, torsion head, top connection, inner sliding sleeve is fixed together by shear pin, torsion head lower end inner wall is connected with screen casing, top connection lower end inner wall is connected with interior washing pipe, the wall of top connection bottom between inner sliding sleeve and screen casing is provided with through hole, ball is provided with in through hole, residing for described ball, space is narrowed towards the direction of screen casing, outer wall corresponding with ball on inner sliding sleeve is provided with annular groove, annular groove place is provided with and connects in inner sliding sleeve, the through hole of the external space, inner sliding sleeve lower end is provided with internal projecting ring, tube wall corresponding with ball on screen casing is provided with through hole, torsion head lower end outer wall is connected with seating nipple, torsion head lower end presses closer slip ring, position corresponding with the through hole on screen casing on slip ring is provided with inner groove, unidirectional tooth slip ring outer wall is provided with on Ka Ya and seating nipple lower end inner wall matches, slip ring lower end is connected in the lower slip ring on screen casing outer wall, lower slip ring lower end is connected in the cutting ferrule on screen casing outer wall.
2. bore hole grappling washing type dropper according to claim 1, it is characterized in that, interior washing pipe is positioned at screen casing.
3. bore hole grappling washing type dropper according to claim 1, it is characterized in that, cutting ferrule is fixed on screen casing outer wall by pin.
4. the application of bore hole grappling washing type dropper in constructing with completion described in claim 1, it is characterized in that, during open hole well completion, described bore hole grappling washing type dropper is down to down-hole desired location, after putting in place, flushing fluid enters down-hole by screen casing and interior washing pipe, is discharged by the ring set space between screen casing and the borehole wall; After flushing completes, drop into pressure ball, the internal projecting ring that pressure ball clashes into inner sliding sleeve lower end cuts off shear pin, inner sliding sleeve glides, and the annular groove on inner sliding sleeve is relative with the through hole in top connection, then continues fluid injection pressurization, liquid applies pressure to slip ring by the through hole on inner sliding sleeve by the through hole in top connection and screen casing, slip ring and lower slip ring descending, Ka Ya is engaged with the unidirectional tooth of seating nipple lower end, cutting ferrule open hang with the open hole well borehole wall on; Move in the space that the annular groove of ball on inner sliding sleeve and the through hole in top connection limit, liquid enters in above-mentioned limited space, along with residing for ball, space to be narrowed towards the direction of screen casing and is being impacted towards inner sliding sleeve direction ball, on put on joint, ball enters in the annular groove space between top connection and inner sliding sleeve, be connected together by ball between top connection and inner sliding sleeve, joint is put in continuation, top connection, ball, interior washing pipe are up in the lump, and screen casing, cutting ferrule, lower slip ring, seating nipple, slip ring, card tooth, torsion head hang with in well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510432240.3A CN105178899B (en) | 2015-07-22 | 2015-07-22 | The application of bore hole grappling flushing type dropper and the device in completion construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510432240.3A CN105178899B (en) | 2015-07-22 | 2015-07-22 | The application of bore hole grappling flushing type dropper and the device in completion construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105178899A true CN105178899A (en) | 2015-12-23 |
| CN105178899B CN105178899B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510432240.3A Active CN105178899B (en) | 2015-07-22 | 2015-07-22 | The application of bore hole grappling flushing type dropper and the device in completion construction |
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| CN (1) | CN105178899B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263249A (en) * | 2022-07-08 | 2022-11-01 | 中煤科工集团西安研究院有限公司 | Controllable disengaging type seeker, bare hole sieve tube feeding device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050217847A1 (en) * | 2004-04-06 | 2005-10-06 | Baker Hughes Incorporated | One trip completion system |
| CN2898269Y (en) * | 2006-04-26 | 2007-05-09 | 中国石油天然气股份有限公司 | Multifunctional screen pipe hanger |
| CN101560875A (en) * | 2009-05-18 | 2009-10-21 | 中国石油辽河油田钻采工艺研究院 | Multifunctional horizontal well completion tubular pile device |
| CN202266245U (en) * | 2011-08-28 | 2012-06-06 | 中国石油集团长城钻探工程有限公司 | Uncased-hole anchoring tool |
| CN204252886U (en) * | 2014-10-30 | 2015-04-08 | 中国石油天然气集团公司 | A kind of Multilateral Wells pressure break tieback releasing tool |
| CN204920866U (en) * | 2015-07-22 | 2015-12-30 | 濮阳博瑞特石油工程技术有限公司 | Bore hole anchoring formula of washing ware of giving up |
-
2015
- 2015-07-22 CN CN201510432240.3A patent/CN105178899B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050217847A1 (en) * | 2004-04-06 | 2005-10-06 | Baker Hughes Incorporated | One trip completion system |
| CN2898269Y (en) * | 2006-04-26 | 2007-05-09 | 中国石油天然气股份有限公司 | Multifunctional screen pipe hanger |
| CN101560875A (en) * | 2009-05-18 | 2009-10-21 | 中国石油辽河油田钻采工艺研究院 | Multifunctional horizontal well completion tubular pile device |
| CN202266245U (en) * | 2011-08-28 | 2012-06-06 | 中国石油集团长城钻探工程有限公司 | Uncased-hole anchoring tool |
| CN204252886U (en) * | 2014-10-30 | 2015-04-08 | 中国石油天然气集团公司 | A kind of Multilateral Wells pressure break tieback releasing tool |
| CN204920866U (en) * | 2015-07-22 | 2015-12-30 | 濮阳博瑞特石油工程技术有限公司 | Bore hole anchoring formula of washing ware of giving up |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263249A (en) * | 2022-07-08 | 2022-11-01 | 中煤科工集团西安研究院有限公司 | Controllable disengaging type seeker, bare hole sieve tube feeding device and method |
| CN115263249B (en) * | 2022-07-08 | 2024-02-13 | 中煤科工集团西安研究院有限公司 | Controllable release type seeker, bare hole lower screen pipe device and method |
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| Publication number | Publication date |
|---|---|
| CN105178899B (en) | 2017-08-25 |
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