CN106639970A - Multifunctional well completion pipe string sealing performance detecting device and application method - Google Patents
Multifunctional well completion pipe string sealing performance detecting device and application method Download PDFInfo
- Publication number
- CN106639970A CN106639970A CN201611092961.5A CN201611092961A CN106639970A CN 106639970 A CN106639970 A CN 106639970A CN 201611092961 A CN201611092961 A CN 201611092961A CN 106639970 A CN106639970 A CN 106639970A
- Authority
- CN
- China
- Prior art keywords
- main body
- sleeve
- sealing ring
- shaped sealing
- pressure pin
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a multifunctional well completion pipe string sealing performance detecting device and an application method and belongs to the well completion pipe string sealing performance detecting technology. The defect of a float collar and a float shoe in the prior art is overcome. The multifunctional well completion pipe string sealing performance detecting device comprises an upper connector, a main body, a piston cutting sleeve, a fluid discharge hole, an upper O-shaped sealing ring, a lower O-shaped sealing ring, a constant pressure pin and a lower connector. The upper connector is sleeved with the upper end of the main body, and the lower end of the main body is connected with the lower connector. The piston cutting sleeve is fixed to the main body with the constant pressure pin 7 and sealed through the upper O-shaped sealing ring and the lower O-shaped sealing ring. The multifunctional well completion pipe string sealing performance detecting device has the significance that the air tightness of a sleeve is verified first, the sleeve is pressurized and opened after the sleeve is qualified, and then well cementing construction is carried out, so that the air tightness of the well completion sleeve is guaranteed effectively, and reworking construction and scrapping of an well are avoided.
Description
Technical field：
The present invention relates to completion tubular column sealing property inspection technology, especially a kind of Multifunction complete well tube sealing property inspection dress
Put and application process.
Background technology：
In each task of oil exploration and oil field development, drilling well is played a very important role.Find and confirm oily
Construct, obtain commercial oil, verify certified oil-containing（Gas）The hydrocarbon-bearing area and reserves of construction, obtains the ground about oil field
Matter data and exploitation data, finally get crude oil on ground from underground etc., none is not completed by drilling well.Bore
Well is an important step of exploration and exploitation petroleum and natural gas resource, is the important means for exploring and developing oil.
Drilling well is drilled into after target zone lower production casing, and to the lower sleeve pipe to target zone the inspection of tubing string sealing property is carried out
Test, after the technical standard requirement for reaching regulation lower step operation -- the construction of well cementing of cement can be just carried out.At present conventional method is
Connect float collar float plug in the bottom of sleeve pipe, float shoe body is alloy structure Steel material, and upper end connects with sleeve pipe.Float collar structure with it is floating
Footwear are essentially identical, and simply its lower end is pin thread, is connected with sleeve pipe.The shortcoming cemented the well using float collar float plug is can not be right before well cementation
Casing pressure test, it is impossible to verify the air-tightness of sleeve pipe.
The content of the invention：It is an object of the invention to provide a kind of bubble-tight Multifunction complete well tube of effective guarantee completion casing
Sealing property verifying attachment and application process, it overcomes the shortcoming of original technology float collar float plug, and the purpose of the present invention is so
Realize, it include top connection, main body, piston shear sleeve, leakage opening, upper O-shaped sealing ring, under O-shaped sealing ring, level pressure pin,
Lower contact, the upper end of main body is enclosed within top connection, and its lower end is connected with lower contact；Piston shear sleeve is fixed on by level pressure pin 7
In main body, by upper O-shaped sealing ring, under O-shaped seal ring seal.
Described main body, its top is provided with leakage opening, leakage opening and upper O-shaped sealing ring, under O-shaped sealing ring it is corresponding.
The present invention application process be：This device is in the position of completion tubular column：Order from top to bottom is：Sleeve pipe+float shoe+
This device；Piston shear sleeve is fixed in main body by level pressure pin, by the drainage in upper and lower O-shaped seal ring seal main body
Hole.After under sleeve pipe to design attitude, hermetic seal inspection is carried out to sleeve pipe in the case where pressure is cut short less than level pressure pin, it is qualified to check
Afterwards, continue to pressurize, the stress that piston shear sleeve top and bottom are born is different, and piston shear sleeve upper portion pressurized area is received more than bottom
Power area, uniform pressure lower piston shear sleeve produces downward thrust, when fluid pressure reaches the shearing pressure that level pressure pin is cut short
During power, level pressure pin is cut off, and piston shear sleeve is moved downward under pressure promotion, and leakage opening all exposes, and cannula cavity is led to
Cross leakage opening to connect with well, ensure being normally carried out for well cementing operation.
Meaning of the present invention is：The air-tightness of sleeve pipe is first verified, qualified rear pressurization is opened and carries out cementing operation again, effectively
The air-tightness of completion casing is ensured, prevent to do over again construction and well are scrapped.
Description of the drawings：
Fig. 1 is a kind of structural representation of Multifunction complete well tube sealing property verifying attachment, 1, top connection 2, main body in figure
3rd, piston shear sleeve 4, leakage opening 5, upper O-shaped sealing ring 6, under O-shaped sealing ring 7, level pressure pin 8, lower contact.
Specific embodiment：
Embodiment 1, the present invention include top connection 1, main body 2, piston shear sleeve 3, leakage opening 4, upper O-shaped sealing ring 5, under it is O-shaped close
Seal ring 6, level pressure pin 7, lower contact 8, the upper end of main body 2 is enclosed within top connection 1, and its lower end is connected with lower contact 8；Piston is sheared
Set 3 by level pressure pin 7 fix on the body 2, by upper O-shaped sealing ring 5, under O-shaped sealing ring 6 seal.
Embodiment 2, described main body 2, its top is provided with leakage opening 4, leakage opening 4 and upper O-shaped sealing ring 5, under it is O-shaped close
Seal ring 6 is corresponding.
Embodiment 3, the application process of the present invention are：This device is in the position of completion tubular column：Order from top to bottom is：Set
Pipe+float shoe+this device；Piston shear sleeve 3 is fixed on the body 1 by level pressure pin 7, by upper and lower O-shaped seal ring seal master
Leakage opening on body；After under sleeve pipe to design attitude, hermetic seal inspection is carried out to sleeve pipe in the case where pressure is cut short less than level pressure pin 7
Test, after the assay was approved, continue to pressurize, the stress that the top and bottom of piston shear sleeve 3 are born is different, the upper portion pressurized face of piston shear sleeve 3
More than the lifting surface area of bottom, uniform pressure lower piston shear sleeve 3 produces downward thrust to product, when fluid pressure reaches level pressure pin
During the shear pressure that nail 7 is cut short, level pressure pin 7 is cut off, and piston shear sleeve 3 is moved downward under pressure promotion, and leakage opening 4 is complete
Portion exposes, and cannula cavity is connected by leakage opening 4 with well, ensures being normally carried out for well cementing operation.
Claims (3)
1. a kind of Multifunction complete well tube sealing property verifying attachment, it includes top connection（1）, main body（2）, piston shear sleeve
（3）, leakage opening（4）, upper O-shaped sealing ring (5), under O-shaped sealing ring（6）, level pressure pin（7）, lower contact (8), it is characterized in that：It is main
Body (（2）Upper end be enclosed within top connection（1）On, its lower end and lower contact（8）Connection；Piston shear sleeve（3）Consolidated by level pressure pin 7
It is scheduled on main body（2）On, by upper O-shaped sealing ring (5), under the sealing of O-shaped sealing ring (6).
2. a kind of Multifunction complete well tube sealing property verifying attachment according to claim 1, is characterized in that：Main body（2）
Top be provided with leakage opening（4）, leakage opening (4) and upper O-shaped sealing ring (5), under O-shaped sealing ring (6) it is corresponding.
3. a kind of application process of Multifunction complete well tube sealing property verifying attachment described in claim 1, is characterized in that：This dress
Put in the position of completion tubular column：Order from top to bottom is：Sleeve pipe+float shoe+this device；Piston shear sleeve（3）By level pressure pin
Nail（7）It is fixed on main body（1）On, by the leakage opening in upper and lower O-shaped seal ring seal main body；When under sleeve pipe arrive design attitude
Afterwards, hermetic seal inspection is carried out to sleeve pipe in the case where pressure is cut short less than level pressure pin (7), after the assay was approved, continues to pressurize, piston is cut
Cut set（3）The stress that top and bottom are born is different, piston shear sleeve（3）Upper portion pressurized area is more than the lifting surface area of bottom, identical
Pressure lower piston shear sleeve（3）Downward thrust is produced, when fluid pressure reaches level pressure pin（7）During the shear pressure cut short,
Level pressure pin（7）Cut off, piston shear sleeve（3）Move downward in the case where pressure is promoted, leakage opening (4) all exposes, in sleeve pipe
Chamber is connected by leakage opening (4) with well, ensures being normally carried out for well cementing operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092961.5A CN106639970A (en) | 2016-12-02 | 2016-12-02 | Multifunctional well completion pipe string sealing performance detecting device and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092961.5A CN106639970A (en) | 2016-12-02 | 2016-12-02 | Multifunctional well completion pipe string sealing performance detecting device and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106639970A true CN106639970A (en) | 2017-05-10 |
Family
ID=58814150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611092961.5A Pending CN106639970A (en) | 2016-12-02 | 2016-12-02 | Multifunctional well completion pipe string sealing performance detecting device and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106639970A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201292816Y (en) * | 2008-11-24 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Self-pouring sliding bush closing type cementing machine |
| CN101761332A (en) * | 2010-01-10 | 2010-06-30 | 蓝鲁哲 | Up-running-proof pipe string sealing check device |
| CN103299028A (en) * | 2010-10-18 | 2013-09-11 | Ncs油田服务股份有限公司加拿大分公司 | Tools and methods for use in completion of a wellbore |
| CN203978374U (en) * | 2014-06-05 | 2014-12-03 | 中国石油化工股份有限公司 | Pipe cementing tool is tested in a kind of down-hole |
| CN206439024U (en) * | 2016-12-02 | 2017-08-25 | 河南东方龙机械制造有限公司 | A kind of Multifunction complete well tube sealing property verifying attachment |
-
2016
- 2016-12-02 CN CN201611092961.5A patent/CN106639970A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201292816Y (en) * | 2008-11-24 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Self-pouring sliding bush closing type cementing machine |
| CN101761332A (en) * | 2010-01-10 | 2010-06-30 | 蓝鲁哲 | Up-running-proof pipe string sealing check device |
| CN103299028A (en) * | 2010-10-18 | 2013-09-11 | Ncs油田服务股份有限公司加拿大分公司 | Tools and methods for use in completion of a wellbore |
| CN203978374U (en) * | 2014-06-05 | 2014-12-03 | 中国石油化工股份有限公司 | Pipe cementing tool is tested in a kind of down-hole |
| CN206439024U (en) * | 2016-12-02 | 2017-08-25 | 河南东方龙机械制造有限公司 | A kind of Multifunction complete well tube sealing property verifying attachment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
|
| WD01 | Invention patent application deemed withdrawn after publication |