CN105587282A - Casing head for thermal recovery of thick oil - Google Patents
Casing head for thermal recovery of thick oil Download PDFInfo
- Publication number
- CN105587282A CN105587282A CN201610057762.4A CN201610057762A CN105587282A CN 105587282 A CN105587282 A CN 105587282A CN 201610057762 A CN201610057762 A CN 201610057762A CN 105587282 A CN105587282 A CN 105587282A
- Authority
- CN
- China
- Prior art keywords
- suspension body
- hanger
- flange
- casing head
- 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.)
- Pending
Links
- 238000011084 recovery Methods 0.000 title abstract 2
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims description 29
- 238000000605 extraction Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Revetment (AREA)
Abstract
The invention relates to a casing head, in particular to a casing head for thermal recovery of thick oil. The casing head comprises a hollow casing, a telescoping pipe, and a hollow hanger, wherein bevels which can be matched each other are arranged on the inner wall of the casing and the outer wall of the hanger; the hanger is hung in the casing through the matching of the bevels, and a flange is fixedly connected to the top end surface of the casing and compacts the hanger downwards; an inwards-constrcted raised edge is arranged at an the opening in the lower end of the hanger, and an outwards-extended raised side is arranged at an the opening in the upper end of the telescoping pipe; the raised side can be matched in the hanger in a manner of moving up and down, and sealing rings are arranged between the raised edge and the hanger; a spring is positioned in the hanger, and the upper end and the lower end of the spring respectively support the lower end surface of the flange and the upper end surface of the telescoping pipe, so that the raised side and the raised edge are in tight contact. According to the casing head disclosed by the invention, the spring is additionally mounted between the flange and the telescoping pipe, and the spring is used for absorbing energy generated when the telescoping pipe is heated to be and expanded, so that during conventional welding, the influence of the heated telescoping pipe on weld joints is avoided, and potential safety hazards are eliminated.
Description
Technical field
The present invention relates to a kind of casing head, concrete is a kind of casing head for heavy crude heat extraction.
Background technology
Fixing and the installation of heavy oil development well head is substantially all the mode that adopts welding at present, and after steam injection, telescoping tube is heated and can expands instantly, and the potential safety hazard of the weld seam at well head place is backed down in existence. Particularly, the installing in shackle process of well head, easily cause the inner thermal medium injecting to leak, staff's life security is threatened.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides the casing head that can avoid telescoping tube expanded by heating and import weld seam is caused to damage.
The present invention deal with problems adopt technical scheme be:
A kind of casing head for heavy crude heat extraction, comprise housing and the telescoping tube of hollow, also comprise the suspension body of hollow, the inwall of described housing and the outer wall of suspension body are provided with the inclined-plane that can cooperatively interact, described suspension body is coordinated and is suspended on enclosure interior by inclined-plane, one flange is fixedly connected on the top end face of housing and suspension body is down compressed, the lower ending opening place of described suspension body is provided with the convex edge inside contracting, the upper end open place of described telescoping tube is provided with the chimb extending out, moving up and down being engaged in suspension body and between chimb and suspension body of this chimb is provided with sealing ring, one spring is positioned at suspension body inside and upper and lower side withstands respectively the lower surface of flange and the upper surface of telescoping tube, force this chimb and convex edge close contact.
As the further improvement of such scheme, the edge of the upper end open of described telescoping tube is provided with upwardly extending flange collar, and described spring housing is connected on this flange collar outside.
As the further improvement of such scheme, between described flange and suspension body, be provided with sealing ring.
Beneficial effect of the present invention: the present invention adds spring between flange and telescoping tube, when telescoping tube is subject to thermal stretching, spring just pressurized shortens, and effectively absorbs the energy of telescoping tube, the impact that while avoiding prior welding mode, telescopic tube butt welded seam causes, eliminates safe hidden trouble.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is internal structure schematic diagram of the present invention.
Detailed description of the invention
Below with reference to embodiment and accompanying drawing, the technique effect of design, concrete structure and the generation to innovation and creation carries out clear, complete description, to understand fully object, feature and the effect of the invention. Each technical characterictic in the invention, can combination of interactions under the prerequisite of not conflicting conflict.
With reference to Fig. 1, a kind of casing head for heavy crude heat extraction, comprise housing 1 and the telescoping tube 2 of hollow, also comprise the suspension body 3 of hollow, the outer wall of the inwall of described housing 1 and suspension body 3 is provided with the inclined-plane that can cooperatively interact, described suspension body 2 is coordinated and is suspended on housing 1 inside by inclined-plane, one flange 4 is fixedly connected on the top end face of housing 1 and suspension body 3 is down compressed, the lower ending opening place of described suspension body 3 is provided with the convex edge inside contracting, the upper end open place of described telescoping tube 2 is provided with the chimb extending out, moving up and down being engaged in suspension body 3 and between chimb and suspension body 3 of this chimb is provided with sealing ring 5, one spring 6 is positioned at suspension body 3 inside and upper and lower side withstands respectively the lower surface of flange 4 and the upper surface of telescoping tube 2, force this chimb and convex edge close contact. its middle shell 1 can be threaded with the outer tube of down-hole 7.
To the further improvement of the side of enforcement, the edge of the upper end open of described telescoping tube 2 is provided with upwardly extending flange collar, and described spring 6 is socketed in this flange collar outside, and spring 6 is enclosed within flange collar outside, can easily not occur displacement. Between described flange 4 and suspension body 3, be provided with sealing ring.
The present invention arranges suspension body 2 in housing 1 inside, in suspension body 2, add spring 6, while utilizing the scalability of spring 6 to be subject to thermal stretching to telescoping tube 2, cushion, effectively absorb the energy of telescoping tube 2, while avoiding prior welding mode, telescoping tube 2 extends the impact that butt welded seam causes, and eliminates safe hidden trouble.
The above is preferably embodiment of the present invention, and it does not form limiting the scope of the invention, all should belong to protection scope of the present invention as long as realize object of the present invention with essentially identical means.
Claims (3)
1. the casing head for heavy crude heat extraction, comprise housing (1) and the telescoping tube (2) of hollow, it is characterized in that: the suspension body (3) that also comprises hollow, the outer wall of the inwall of described housing (1) and suspension body (3) is provided with the inclined-plane that can cooperatively interact, described suspension body (2) is coordinated and is suspended on housing (1) inside by inclined-plane, one flange (4) is fixedly connected on the top end face of housing (1) and suspension body (3) is down compressed, the lower ending opening place of described suspension body (3) is provided with the convex edge inside contracting, the upper end open place of described telescoping tube (2) is provided with the chimb extending out, moving up and down being engaged in suspension body (3) and between chimb and suspension body (3) of this chimb is provided with sealing ring (5), one spring (6) is positioned at suspension body (3) inside and upper and lower side withstands respectively the lower surface of flange (4) and the upper surface of telescoping tube (2), force this chimb and convex edge close contact.
2. a kind of casing head for heavy crude heat extraction according to claim 1, is characterized in that the edge of the upper end open of described telescoping tube (2) is provided with upwardly extending flange collar, and described spring (6) is socketed in this flange collar outside.
3. a kind of casing head for heavy crude heat extraction according to claim 1, is characterized in that being provided with sealing ring between described flange (4) and suspension body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057762.4A CN105587282A (en) | 2016-01-28 | 2016-01-28 | Casing head for thermal recovery of thick oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057762.4A CN105587282A (en) | 2016-01-28 | 2016-01-28 | Casing head for thermal recovery of thick oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105587282A true CN105587282A (en) | 2016-05-18 |
Family
ID=55927160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610057762.4A Pending CN105587282A (en) | 2016-01-28 | 2016-01-28 | Casing head for thermal recovery of thick oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105587282A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122626A (en) * | 2016-08-22 | 2016-11-16 | 武汉大禹阀门股份有限公司 | A kind of extension flange structure |
| CN107701125A (en) * | 2016-08-09 | 2018-02-16 | 中国石油化工股份有限公司 | A kind of casing expandable, which shrinks to inhale, mends device |
| CN112983333A (en) * | 2021-04-25 | 2021-06-18 | 东营华辰石油装备有限公司 | Casing hanging type thermal recovery casing head |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2138614C1 (en) * | 1998-02-10 | 1999-09-27 | Оренбургская военизированная часть по предупреждению возникновения и по ликвидации открытых газовых и нефтяных фонтанов Фирмы "Газобезопасность" | Wedge-type self-sealing pipe string head |
| CN101333917A (en) * | 2008-07-03 | 2008-12-31 | 宿官礼 | Elastic tube-type thermal production casing head |
| CN201730576U (en) * | 2010-07-20 | 2011-02-02 | 宿官礼 | Straight pipe type thermal production casing pipe head |
| CN203856443U (en) * | 2014-04-15 | 2014-10-01 | 刘克军 | Telescopic thermal recovery casing head device |
| CN205532443U (en) * | 2016-01-28 | 2016-08-31 | 太仓市高泰机械有限公司 | A casing head for viscous crude thermal recovery |
-
2016
- 2016-01-28 CN CN201610057762.4A patent/CN105587282A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2138614C1 (en) * | 1998-02-10 | 1999-09-27 | Оренбургская военизированная часть по предупреждению возникновения и по ликвидации открытых газовых и нефтяных фонтанов Фирмы "Газобезопасность" | Wedge-type self-sealing pipe string head |
| CN101333917A (en) * | 2008-07-03 | 2008-12-31 | 宿官礼 | Elastic tube-type thermal production casing head |
| CN201730576U (en) * | 2010-07-20 | 2011-02-02 | 宿官礼 | Straight pipe type thermal production casing pipe head |
| CN203856443U (en) * | 2014-04-15 | 2014-10-01 | 刘克军 | Telescopic thermal recovery casing head device |
| CN205532443U (en) * | 2016-01-28 | 2016-08-31 | 太仓市高泰机械有限公司 | A casing head for viscous crude thermal recovery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701125A (en) * | 2016-08-09 | 2018-02-16 | 中国石油化工股份有限公司 | A kind of casing expandable, which shrinks to inhale, mends device |
| CN106122626A (en) * | 2016-08-22 | 2016-11-16 | 武汉大禹阀门股份有限公司 | A kind of extension flange structure |
| CN112983333A (en) * | 2021-04-25 | 2021-06-18 | 东营华辰石油装备有限公司 | Casing hanging type thermal recovery casing head |
| CN112983333B (en) * | 2021-04-25 | 2021-08-03 | 东营华辰石油装备有限公司 | Casing hanging type thermal recovery casing head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160518 |