CN104033125B - A kind of double-wellhead device being applicable to 26 inch conduit - Google Patents
A kind of double-wellhead device being applicable to 26 inch conduit Download PDFInfo
- Publication number
- CN104033125B CN104033125B CN201410258135.8A CN201410258135A CN104033125B CN 104033125 B CN104033125 B CN 104033125B CN 201410258135 A CN201410258135 A CN 201410258135A CN 104033125 B CN104033125 B CN 104033125B
- Authority
- CN
- China
- Prior art keywords
- inch
- protective casing
- double
- wellhead
- casing
- 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
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of double-wellhead device being applicable to 26 inch conduit,Inch protective casing hanger withInch protective casing is joined directly together, and hanger is connected suspended from more pieceInch protective casing, the total Beijing South Maxpower Technology Co. Ltd of sleeve pipe reaches 350 tons, makes due to action of gravity during setting of casingThe box cupling of inch protective casing can be close to 26 inch conduit inwalls and in lower going-into-well, when being lowered intoDuring inch protective casing hanger, due toInch protective casing hanger bottom imports groove from belt length, can be byInch protective casing hanger imports double-wellhead casing head 22 inner chamber, owing to action of gravity and box cupling are apart from enough remote, can make originally to deviateInch protective casing hanger is centered to intracavity in double-wellhead casing head by force, thus installs two in realizing 26 inch conduitInch protective casing.The present invention saves well head space, installs double-wellhead, equipment investment low cost at the pit shaft that originally can only bung down, and oil and gas production improves notable.
Description
Technical field
The present invention relates to a kind of double-wellhead technical field, particularly relate to a kind of double-wellhead device being applicable to 26 inch conduit.
Background technology
In reality, a twin-well technique routinely is cannot to realize installing two in 26 inches of pit shaftsInch protective casing, is primarily due to 26 inches of pit shaft inside dimension ratios relatively limited, installsDuring inch protective casing, two sleeve pipes will be made to draw close to center and just to will not interfere with 26 inches of shaft in wall, but two, upper strata four-way junction of casing sector flange can be caused again after center is drawn close to interfere, currently also do not have a kind of technique to be capable of in 26 inch conduit installing twoInch protective casing.
Therefore, design a kind of realization in 26 inch conduit install two for overcoming the deficiency of above-mentioned technologyThe technique of inch gage sleeve pipe and relevant apparatus, just inventor's problem to be solved.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide a kind of double-wellhead device being applicable to 26 inch conduit, the design makesThe restriction that inch protective casing is not installed because of 26 inch conduit inwalls and upper strata four-way junction of casing, it is possible to be arranged on smoothly in 26 inch conduit, saves well head space, and equipment investment low cost, oil and gas production is obviously improved, and has the highest practical value.
The technical solution adopted for the present invention to solve the technical problems is: described in be applicable to the double-wellhead device of 26 inch conduit, described double-wellhead device includes double-wellhead casing head, is installed in described double-wellhead casing head importInch protective casing hanger,Inch protective casing hanger bottom is provided with the long groove that imports, describedInch protective casing hanger is provided with sealing ring with the well head place of cooperation of twin-well pipe box tube head, describedInch protective casing hanger lower end is hung withInch protective casing, described double-wellhead casing head lower end is combined with described in a parcel two26 inch conduit of inch protective casing, are combined with sealing ring between described 26 inch conduit and described double-wellhead casing head inwall, described double-wellhead casing head bottom bolts connects down slips, describedInch protective casing outer surface is provided with box cupling；DescribedInch protective casing hanger lower surface withInch protective casing external diameter intersection point is extremelyThe distance of inch protective casing box cupling starting point is with describedInch protective casing box cupling starting point is extremelyInch protective casing box cupling starting point is more than or equal to 956.522 to box cupling external diameter horizontal-extending intersection point distance ratio；Inch casing hanger withInch protective casing interference fit.
Will in above-mentioned designInch protective casing will be connected with hanger that female box cupling remove reduce hanger withThe installing space of inch protective casing.By increasing box cupling with describedInch protective casing hanger lower surface withThe distance of inch protective casing external diameter intersection point makes to produce interference in the course of the work with 26 inch conduit inner surfacies and makes to install two in 26 inch conduitInch protective casing saves well head space, equipment investment low cost, improves oil and gas production.
As the preferable improvement of the design, described casing hanger bottom is provided with long importing groove.The described long groove that imports is easy to and installs two hangers in a casing head.
As the preferable improvement of the design, described sealing ring is two.Two sealing rings ensure that 26 inch conduit existIt is difficult at casing head occur leakage under inch protective casing extruding.
The invention has the beneficial effects as follows: the present invention installs two at a well headInch protective casing is greatly saved well head space, installs double-wellhead, equipment investment low cost at the pit shaft that originally can only bung down, and oil and gas production improves notable.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Wherein: 1, hanger；2, double-wellhead casing head, 3,26 inch conduit, 4,Inch protective casing, 5, fall slips, 6, sealing ring, 7, sealing ring, 8,Inch casing hanger lower surface withInch protective casing external diameter intersection point, 9,Inch protective casing box cupling starting point, 10,Inch protective casing box cupling starting point is to the horizontal-extending intersection point of box cupling external diameter, and 11, box cupling, 12. long import grooves.
Detailed description of the invention
One embodiment of narration below in conjunction with the accompanying drawings, the invention will be further described.
Embodiment: in the drawings, described in be applicable to the double-wellhead device of 26 inch conduit 3 and include double-wellhead casing head 2, be installed in the import of described double-wellhead casing head 2Inch protective casing 4 hanger 1,Inch protective casing 4 hanger 1 bottom is provided with the long groove 12 that imports, describedInch protective casing 4 hanger 1 is provided with sealing ring 6 with the well head place of cooperation of twin-well pipe box tube head, describedInch protective casing 4 hanger 1 lower end is hung withInch protective casing 4, described double-wellhead casing head 2 lower end is combined with described in a parcel two26 inch conduit 3 of inch protective casing 4, are combined with sealing ring 7 between described 26 inch conduit 3 and described double-wellhead casing head 2 inwall, described double-wellhead casing head bottom bolts connects down slips 5, describedInch protective casing 4 outer surface is provided with box cupling 11；DescribedInch protective casing 4 hanger 1 lower surface withInch protective casing 4 external diameter intersection point 8 toThe distance of inch protective casing 4 box cupling 11 starting point 9 is with describedInch protective casing 4 box cupling 11 starting point 9 toInch protective casing 4 box cupling 11 starting point 9 is more than or equal to 956.522 to box cupling 11 external diameter horizontal-extending intersection point 10 distance ratio；Inch protective casing 4 hanger 1 withInch protective casing 4 interference fit.
Will in above-mentioned designInch protective casing 4 will be connected with hanger 1 that female box cupling 11 remove reduce hanger 1 withThe installing space of inch protective casing 4.By increasing box cupling 11 with describedInch protective casing 4 hanger 1 lower surface withThe distance of inch protective casing 4 external diameter intersection point makes to produce interference in the course of the work with 26 inch conduit 3 inner surfacies and makes to install two in 26 inch conduit 3Inch protective casing 4 saves well head space, equipment investment low cost, improves oil and gas production.
As the preferable improvement of the design, described casing hanger 1 bottom is provided with long importing groove 12.The described long groove 12 that imports is easy to and installs two hangers 1 in a casing head.
As the preferable improvement of the design, described sealing ring 7 is two.Two sealing rings 7 ensure that 26 inch conduit 3 existIt is difficult at casing head occur leakage under inch protective casing 4 extruding.
In field-mounted processInch protective casing 4 hanger 1 withInch protective casing 4 is joined directly together rather than is indirectly connected to by conventional double male joint and female box cupling,The threaded lifting tool in inch protective casing 4 hanger 1 top, is connected suspended from more pieceInch protective casing 4, the total Beijing South Maxpower Technology Co. Ltd of sleeve pipe reaches 350 tons, due to action of gravity during setting of casing,Inch protective casing 4 can become flexible, so thatThe box cupling 11 of inch protective casing 4 can be close to 26 inch conduit 3 inwalls and in lower going-into-well, when being lowered intoDuring inch protective casing 4 hanger 1, due toInch protective casing 4 hanger 1 bottom imports groove 12 from belt length, can be byInch protective casing 4 hanger 1 imports double-wellhead casing head 22 inner chamber, due to remote enough with the distance of B point of action of gravity and A point, script can be made to deviateInch protective casing 4 hanger 1 is centered to intracavity in double-wellhead casing head 2 by force, thus installs two in realizing 26 inch conduit 3Inch protective casing 4.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (3)
1. the double-wellhead device being applicable to 26 inch conduit, it is characterised in that: described double-wellhead device includes double-wellhead casing head, is installed in described double-wellhead casing head importInch protective casing hanger,Inch protective casing hanger bottom is provided with the long groove that imports, describedInch protective casing hanger is provided with sealing ring with the well head place of cooperation of twin-well pipe box tube head, describedInch protective casing hanger lower end is hung withInch protective casing, described double-wellhead casing head lower end is combined with described in a parcel two26 inch conduit of inch protective casing, are combined with sealing ring between described 26 inch conduit and described double-wellhead casing head inwall, described double-wellhead casing head bottom bolts connects down slips, describedInch protective casing outer surface is provided with box cupling；DescribedInch protective casing hanger lower surface withInch protective casing external diameter intersection point is extremelyThe distance of inch protective casing box cupling starting point is with describedInch protective casing box cupling starting point is extremelyInch protective casing box cupling starting point is more than or equal to 956.522 to box cupling external diameter horizontal-extending intersection point distance ratio；Inch casing hanger withInch protective casing interference fit.
A kind of double-wellhead device being applicable to 26 inch conduit the most according to claim 1, it is characterised in that: described casing hanger bottom is provided with long importing groove.
A kind of double-wellhead device being applicable to 26 inch conduit the most according to claim 1, it is characterised in that: described sealing ring is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258135.8A CN104033125B (en) | 2014-06-11 | 2014-06-11 | A kind of double-wellhead device being applicable to 26 inch conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258135.8A CN104033125B (en) | 2014-06-11 | 2014-06-11 | A kind of double-wellhead device being applicable to 26 inch conduit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033125A CN104033125A (en) | 2014-09-10 |
| CN104033125B true CN104033125B (en) | 2016-08-03 |
Family
ID=51464094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410258135.8A Expired - Fee Related CN104033125B (en) | 2014-06-11 | 2014-06-11 | A kind of double-wellhead device being applicable to 26 inch conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033125B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156053A (en) * | 2015-07-30 | 2015-12-16 | 江苏金石科技有限公司 | Double-pipe oil pipe hanger with sealing sleeve structure |
| CN107916891B (en) * | 2016-10-08 | 2020-06-09 | 中国石油天然气股份有限公司 | Drilling method suitable for 26-inch guide pipe single-cylinder double wells |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469171Y (en) * | 2001-03-07 | 2002-01-02 | 刘学高 | Casing head of borehole of oil or gas |
| RU2269641C1 (en) * | 2005-01-18 | 2006-02-10 | Общество с ограниченной ответственностью "ЛУКОЙЛ-ПЕРМЬ" | Wellhead equipment (variants) |
| CN201180511Y (en) * | 2007-11-30 | 2009-01-14 | 南京伟业机械有限公司 | Gas injection, oil extraction shaft mouth apparatus |
| CN101509360A (en) * | 2009-03-20 | 2009-08-19 | 江苏金石油气井口科技有限公司 | Multi-base fast-assembling wellhead apparatus |
| CN202493236U (en) * | 2012-03-19 | 2012-10-17 | 盐城三益石化机械有限公司 | Separate type double-barreled hanger assembly |
| CN202755939U (en) * | 2012-07-26 | 2013-02-27 | 江苏金石科技有限公司 | Integral type casing head single-barrel twin-well well head device |
-
2014
- 2014-06-11 CN CN201410258135.8A patent/CN104033125B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469171Y (en) * | 2001-03-07 | 2002-01-02 | 刘学高 | Casing head of borehole of oil or gas |
| RU2269641C1 (en) * | 2005-01-18 | 2006-02-10 | Общество с ограниченной ответственностью "ЛУКОЙЛ-ПЕРМЬ" | Wellhead equipment (variants) |
| CN201180511Y (en) * | 2007-11-30 | 2009-01-14 | 南京伟业机械有限公司 | Gas injection, oil extraction shaft mouth apparatus |
| CN101509360A (en) * | 2009-03-20 | 2009-08-19 | 江苏金石油气井口科技有限公司 | Multi-base fast-assembling wellhead apparatus |
| CN202493236U (en) * | 2012-03-19 | 2012-10-17 | 盐城三益石化机械有限公司 | Separate type double-barreled hanger assembly |
| CN202755939U (en) * | 2012-07-26 | 2013-02-27 | 江苏金石科技有限公司 | Integral type casing head single-barrel twin-well well head device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033125A (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104033125B (en) | A kind of double-wellhead device being applicable to 26 inch conduit | |
| CN203978311U (en) | A kind of double layer oil pipe | |
| CN106761507A (en) | A kind of shale gas well boll-weevil hanger and the shale gas gas production system containing the hanger | |
| CN109958403A (en) | A kind of device of list conduit double-jacket tube | |
| CN104386491A (en) | Vacuum cup assembly | |
| CN203925385U (en) | In a kind of conduit, realize the device that two protective casings are installed | |
| CN203847039U (en) | Well head protective device | |
| CN203944248U (en) | A kind of wind mass filter | |
| CN203769703U (en) | Coal-bed gas well pressure meter cable wellhead sealing joint | |
| CN203835360U (en) | Compensation device preventing wellhead ascension during offshore heavy oil thermal recovery | |
| CN202039816U (en) | Bidirectional back pressure valve | |
| CN207988989U (en) | A kind of high-pressure well mouth T cables hanger sealing connection mechanism | |
| CN204436314U (en) | A kind of casing bit | |
| CN204457579U (en) | A kind of blanking plug arbitrarily | |
| CN205424217U (en) | Novel silicone rubber tube structure | |
| CN201763293U (en) | Integral casing head | |
| CN203891815U (en) | Creep compensator | |
| CN101503950A (en) | Automatic excitation type slips hanger | |
| CN202431222U (en) | Casing head for tie-back in well repair | |
| CN202007639U (en) | Casing head for hanging casing | |
| CN201351467Y (en) | Auto-excitation type slip hanger | |
| CN203403836U (en) | Anti-falling oil pipe centralizer | |
| CN204152480U (en) | Heavy oil wells gas lift valve | |
| CN203499619U (en) | Novel suspension device of surface sleeve pipe | |
| CN202990934U (en) | Well mouth telescopic compensator for oil well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20210611 |