CN101608538B - External packer of expanding sealing sleeve of internal pipe string tool and construction technique - Google Patents
External packer of expanding sealing sleeve of internal pipe string tool and construction technique Download PDFInfo
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- CN101608538B CN101608538B CN 200910304803 CN200910304803A CN101608538B CN 101608538 B CN101608538 B CN 101608538B CN 200910304803 CN200910304803 CN 200910304803 CN 200910304803 A CN200910304803 A CN 200910304803A CN 101608538 B CN101608538 B CN 101608538B
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Abstract
The invention relates to an external packer of an expanding sealing sleeve of an internal pipe string tool and a construction technique. The external packer is characterized by comprising an upper expanding type pipe internal packer (1), a constant pressure valve (2), a lower expanding type pipe internal packer (3), a horizontal well ball seat (4), a leading shoe (5) and an oil pipe of a connecting part Phi 73; the upper expanding type pipe internal packer (1) and the lower expanding type pipe internal packer (3) are connected with each other by the oil pipe of Phi 73 and the constant pressure valve (2); the lower expanding type pipe internal packer (3) is connected with the horizontal well ball seat (4) by the oil pipe of Phi 73; the lower end of the horizontal well ball seat (4) is connected with the leading shoe (5) by the oil pipe of Phi 73; and the upper expanding type pipe internal packer (1), the constant pressure valve (2) and the lower expanding type pipe internal packer (3) are hollow bodies. The invention can effectively improve setting success rate of the external packer of the sleeve, and evaluate the setting effect in time; and simultaneously, the packer and the construction technique thereof are characterized by stable performance, little risk and high reliability.
Description
Technical field
Packer when the present invention relates to petroleum oil well completion field middle sleeve external packer and setting and set technology, particularly expanding sealing sleeve of internal pipe string tool external packer and construction technology.
Background technology
When utilizing external casing packer to set, adopt the ball seat pitching to build the pressure usually, reach the bloated envelope operation of external casing packer.There is following drawback like this: the one, be unfavorable for the accurate control of down-hole operation pressure; The 2nd, the multistage external casing packer construction operation of incompatibility; The 3rd, be unfavorable for the bloated envelope of the external packer of pipe validity check of construction operation; The 4th, utilize the stage cementing device pitching to build the pressure and have risk.The operation of conventional expanding sealing sleeve external packer of pipe is to utilize pitching to build the pressure to expand that (pressure 8～10MPa) continues to build the pressure greater than 15MPa the tube sealing external packer then, and stage cementing device is opened, the above well section of cementing sealing stage cementing device.
Summary of the invention
The purpose of this invention is to provide expanding sealing sleeve of internal pipe string tool external packer and construction technology; So that the bruising when solving the operation of expanding sealing sleeve external packer of pipe is controlled inaccuracy, can't be tested the problem of scurrying of testing of sealing; Effectively improve external casing packer and set success rate; And can be in time to setting effect evaluation, this packer and construction technology thereof have stable performance, little, the high reliability features of risk simultaneously.
Technical scheme of the present invention is: the expanding sealing sleeve of internal pipe string tool external packer; It is characterized in that: it comprises: the oil pipe of going up packer, horizontal well ball seat, guide shoe and connector Φ 73 in packer in the expanding pipe, constant pressure valve, the following expanding pipe; Oil pipe through Φ 73 between the interior packer of interior packer of last expanding pipe and following expanding pipe is connected with constant pressure valve; Packer is connected with the horizontal well ball seat through the oil pipe of Φ 73 in the following expanding pipe; Horizontal well ball seat lower end is connected with guide shoe through the oil pipe of Φ 73, and the interior packer of packer, constant pressure valve and following expanding pipe is a hollow body in the last expanding pipe.
A kind of construction technology of expanding sealing sleeve of internal pipe string tool external packer: its technological process is following:
1) external casing packer is connected on the bunch tube, the bunch tube G.I.H;
2) with interior pipe string tool according to separator+Φ 73 oil pipes+constant pressure valve+Φ 73 oil pipes in guide shoe+Φ 73 oil pipes+horizontal well ball seat+Φ 73 oil pipes+following expanding pipe+go up separator+Φ 73 oil pipes+crossover sub in the expanding pipe; Be linked in sequence; The back joins with rod string; Be lowered in the sleeve pipe that is connected to external casing packer, packer splits at blind pipe position, the two ends of external casing packer in packer and the following expanding pipe in last expanding pipe;
3) suppress through bloated envelope medium with cementing truck from well head, the pressure rising lets interior packer of expanding pipe and the interior packer of following expanding pipe expand and seals, and the interior packer of expanding pipe is sealed with internal surface of sleeve pipe with the interior packer of following expanding pipe contact;
4) continue to boost, when pressure was elevated to 4.0～5.0MPa, constant pressure valve (2) was opened in voltage stabilizing 1 minute;
5) continue to boost, when pressure is elevated to 9.0～11.0MPa, voltage stabilizing 10 minutes, external casing packer (7) sets;
6) unload push back zero after, make in the expanding pipe packer deblocking in the packer and following expanding pipe, the pipe string tool is downward in moving, and suppresses again through the bloated medium that seals, to setting effect evaluation;
7) return row's situation according to well head liquid, estimate and set effect:, then forward step 8) to if external casing packer sets successfully; If external casing packer sets unsuccessful, repeating step 3), 4), 5), 6), 7) operation;
8) after accomplishing the operation of expanding sealing sleeve external packer of pipe, the pipe string tool boosts to about 18.0MPa to the appropriate location in continuing to transfer, and horizontal well ball seat shear pin is cut off, and hydrophthalmia is opened, and pressure reduces to zero, and interior pipe string tool deblocking trips out drilling tool, and construction finishes.
The bloated envelope medium of pipe string tool and external casing packer all is clear water or mud in above-mentioned.
Said Φ 73 oil pipes are band rigidity centralizer.
The present invention has following beneficial effect: owing to take such scheme; The external casing packer feed pathway of the envelope that expanded places fully through cementing truck and suppresses in the upper and lower expanding pipe of interior pipe string tool that expands in the formed closed chamber of packer; Ability is the control valve internal pressure accurately; And through the controlled pressure data, and the control operation process satisfies the requirement of expanding sealing sleeve external packer of pipe.This technology has stable performance, little, the high reliability features of risk; Can fundamentally solve the bruising control inaccuracy of conventional method when the operation of expanding sealing sleeve external packer of pipe, can't test envelope and test problem such as scurry; Effectively improve external casing packer and set success rate; And can satisfy the requirement of The field fully in time to setting effect evaluation.
Below in conjunction with the embodiment accompanying drawing the present invention is described further:
Description of drawings
Fig. 1 is a sketch map of the present invention.
Among the figure: 1, go up packer in the expanding pipe; 2, constant pressure valve; 3, packer in the following expanding pipe; 4, horizontal well ball seat; 5, guide shoe; 6, pit shaft; 7, external casing packer; 8, bunch tube.
The specific embodiment
Interior pipe string tool comprises packer 3, horizontal well ball seat 4, guide shoe 5 and connector Φ 73 oil pipes in packer 1 in the expanding pipe, constant pressure valve 2, the following expanding pipe; Be connected with constant pressure valve 2 through Φ 73 oil pipes between the packer 3 in packer 1 and the following expanding pipe in the last expanding pipe; Packer 3 is connected with horizontal well ball seat 4 through Φ 73 oil pipes in the following expanding pipe; Horizontal well ball seat 4 lower ends are connected with guide shoe 5 through Φ 73 oil pipes, and the interior packer 3 of packer 1, constant pressure valve 2 and following expanding pipe is a hollow body in the last expanding pipe.
The pipe string tool is following to the construction technology process of the bloated envelope of external casing packer in utilizing:
1) external casing packer 7 is connected with bunch tube 8, bunch tube 8 is lowered in the pit shaft 6.
2) with interior pipe string tool according to separator 3+ Φ 73 oil pipes in guide shoe 5+ Φ 73 oil pipes+horizontal well ball seat 4+ Φ 73 oil pipes (band rigidity centralizer)+following expanding pipe (band rigidity centralizer)+constant pressure valve 2+ Φ 73 oil pipes (band rigidity centralizer)+go up separator 1+ Φ 73 oil pipes in the expanding pipe (band rigidity centralizer)+crossover sub; Be linked in sequence; The back joins with rod string; Be lowered in the bunch tube 8 that is connected to external casing packer 7, packer 3 splits the two ends at external casing packer 7 in packer 1 and the following expanding pipe in last expanding pipe.
3) suppress through expand envelope medium such as clear water or mud with cementing truck from well head; When pressure is elevated to 2.0～3.0MPa; Voltage stabilizing 1 minute; Let the interior packer 3 of interior packer 1 of expanding pipe and following expanding pipe expand and seal, the interior packer 1 of expanding pipe is sealed with internal surface of sleeve pipe with interior packer 3 positions of following expanding pipe contact.
4) continue to boost, when pressure was elevated to 4.0～5.0MPa, constant pressure valve 2 was opened in voltage stabilizing 1 minute.
5) continue to boost, when pressure is elevated to 9.0～11.0MPa, voltage stabilizing 10 minutes, external casing packer 7 sets, and makes external casing packer 7 and shaft in wall pressing.
6) unload push back zero after, packer 3 deblockings in packer 1 and the following expanding pipe in the last expanding pipe, the pipe string tool is downward in moving, and suppresses again through the bloated medium that seals.
7) return row's situation according to well head liquid, estimate and to set effect, just whether external casing packer 7 qualified with the shaft in wall pressing, has only external casing packer 7 and shaft in wall to form seal, external casing packer 7 just cry set qualified; If external casing packer sets successfully, then forward step 8) to; If it is unsuccessful that external casing packer 7 sets, repeating step 3), 4), 5), 6), 7) carry out operation again, set successfully up to external casing packer 7.
8) after accomplishing 7 operations of expanding sealing sleeve external packer of pipe, the pipe string tool boosts to about 18.0MPa to the appropriate location in continuing to transfer, and horizontal well ball seat 4 shear pins are cut off, and hydrophthalmia is opened, and pressure reduces to zero, and interior pipe string tool deblocking trips out drilling tool, and construction finishes.
Need to prove the activities that on bunch tube 8, connects an external casing packer 7 only has been described in the technological process, in fact the quantity of bunch tube 8 upper joint sleeve external packer of pipe 7 can be selected a plurality of as required.During elected majority, above-mentioned activities is operation one by one from top to bottom then, and the external casing packer 7 of connection all sets successfully on bunch tube 8.
Because packer and constant pressure valve belong to existing technology in external casing packer 7, the pipe, so do not do too much explanation in the manual.
Claims (4)
1. expanding sealing sleeve of internal pipe string tool external packer; It is characterized in that: it comprises: the oil pipe of going up packer (3), horizontal well ball seat (4), guide shoe (5) and connector Φ 73 in packer (1) in the expanding pipe, constant pressure valve (2), the following expanding pipe; Oil pipe through Φ 73 between the interior packer (3) of interior packer (1) of last expanding pipe and following expanding pipe is connected with constant pressure valve (2); Packer (3) is connected with horizontal well ball seat (4) through the oil pipe of Φ 73 in the following expanding pipe; Horizontal well ball seat (4) lower end is connected with guide shoe (5) through the oil pipe of Φ 73, and the interior packer (3) of packer (1), constant pressure valve (2) and following expanding pipe is a hollow body in the last expanding pipe.
2. the construction technology of an expanding sealing sleeve of internal pipe string tool external packer: its technological process is following:
1) external casing packer (7) is connected on the bunch tube (8), bunch tube (8) G.I.H;
2) with interior pipe string tool according to packer (3) in guide shoe (5)+Φ 73 oil pipes+horizontal well ball seat (4)+Φ 73 oil pipes+following expanding pipe+Φ 73 oil pipes+constant pressure valve (2)+Φ 73 oil pipes+go up packer (1) in the expanding pipe+Φ 73 oil pipes+crossover sub; Be linked in sequence; The back joins with rod string; Be lowered in the sleeve pipe that is connected to external casing packer (7), packer (3) splits the blind pipe position, two ends at external casing packer (7) in packer (1) and the following expanding pipe in last expanding pipe;
3) suppress through the envelope medium that expands with cementing truck from well head; The pressure rising lets interior packer (1) of expanding pipe and the interior packer (3) of following expanding pipe expand and seals, and the interior packer (1) of expanding pipe is sealed with internal surface of sleeve pipe with the interior packer (3) of following expanding pipe contact;
4) continue to boost, when pressure was elevated to 4.0～5.0 MPa, constant pressure valve (2) was opened in voltage stabilizing 1 minute;
5) continue to boost, when pressure is elevated to 9.0～11.0MPa, voltage stabilizing 10 minutes, external casing packer (7) sets;
6) unload push back zero after, make in the expanding pipe packer (3) deblocking in the packer (1) and following expanding pipe, it is downward to manage string tool in moving, and suppresses again through the bloated medium that seals, to setting effect evaluation;
7) return row's situation according to well head liquid, estimate and set effect:, then forward step 8) to if external casing packer (7) sets successfully; If it is unsuccessful that external casing packer sets (7), repeating step 3), 4), 5), 6), 7) operation;
8) after accomplishing expanding sealing sleeve external packer of pipe (7) operation, the pipe string tool boosts to about 18.0MPa to the appropriate location in continuing to transfer; Horizontal well ball seat (4) shear pin is cut off, and hydrophthalmia is opened, and pressure reduces to zero; Interior pipe string tool deblocking trips out drilling tool, and construction finishes.
3. the construction technology of a kind of expanding sealing sleeve of internal pipe string tool external packer according to claim 2: it is characterized in that: the bloated envelope medium of pipe string tool and external casing packer (7) all is clear water or mud in above-mentioned.
4. the construction technology of a kind of expanding sealing sleeve of internal pipe string tool external packer according to claim 2: it is characterized in that: said Φ 73 oil pipes are band rigidity centralizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910304803 CN101608538B (en) | 2009-07-24 | 2009-07-24 | External packer of expanding sealing sleeve of internal pipe string tool and construction technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910304803 CN101608538B (en) | 2009-07-24 | 2009-07-24 | External packer of expanding sealing sleeve of internal pipe string tool and construction technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101608538A CN101608538A (en) | 2009-12-23 |
| CN101608538B true CN101608538B (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910304803 Expired - Fee Related CN101608538B (en) | 2009-07-24 | 2009-07-24 | External packer of expanding sealing sleeve of internal pipe string tool and construction technique |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106223857B (en) * | 2016-08-24 | 2018-09-04 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of continuous circulator of casing job and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2883662Y (en) * | 2005-12-25 | 2007-03-28 | 张键 | Casing packer for checking channeling |
| CN2921265Y (en) * | 2006-06-29 | 2007-07-11 | 新疆石油管理局采油工艺研究院 | Bridge packer |
| CN201031679Y (en) * | 2007-06-09 | 2008-03-05 | 大庆油田有限责任公司 | Deep layer gas well multiple fracturing tools string |
| CN201225122Y (en) * | 2008-07-26 | 2009-04-22 | 大庆油田有限责任公司 | Horizontal well integral adjustable layer subsection water-shutoff tool string |
| CN201496028U (en) * | 2009-07-24 | 2010-06-02 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Inner pipe series tool external inflatable casing packer |
-
2009
- 2009-07-24 CN CN 200910304803 patent/CN101608538B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2883662Y (en) * | 2005-12-25 | 2007-03-28 | 张键 | Casing packer for checking channeling |
| CN2921265Y (en) * | 2006-06-29 | 2007-07-11 | 新疆石油管理局采油工艺研究院 | Bridge packer |
| CN201031679Y (en) * | 2007-06-09 | 2008-03-05 | 大庆油田有限责任公司 | Deep layer gas well multiple fracturing tools string |
| CN201225122Y (en) * | 2008-07-26 | 2009-04-22 | 大庆油田有限责任公司 | Horizontal well integral adjustable layer subsection water-shutoff tool string |
| CN201496028U (en) * | 2009-07-24 | 2010-06-02 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Inner pipe series tool external inflatable casing packer |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7-158400A 1995.06.20 |
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| CN101608538A (en) | 2009-12-23 |
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Granted publication date: 20121205 Termination date: 20180724 |