CN106639951A - Geothermal well assembly of the structure of a tube with casing - Google Patents
Geothermal well assembly of the structure of a tube with casing Download PDFInfo
- Publication number
- CN106639951A CN106639951A CN201510719054.8A CN201510719054A CN106639951A CN 106639951 A CN106639951 A CN 106639951A CN 201510719054 A CN201510719054 A CN 201510719054A CN 106639951 A CN106639951 A CN 106639951A
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- China
- Prior art keywords
- valve
- casing
- flashboard
- head
- underground heat
- Prior art date
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- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000003566 sealing material Substances 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The invention relates to a geothermal well assembly of the structure of a tube with casing and belongs to the field of petroleum machinery. The invention comprises a casing pipe, a head of casing pipe, a main valve and a side valve. The geothermal well assembly of the structure of a tube with casing is characterized by being comprised a casing centralizer and a four-cross transition, wherein the top of the casing pipe is connected with four-cross transition, and the end face of the connecting sleeve is provided with a sealing ring, and a sleeve centralizer at the top of the casing head, the top of the four-cross transition is provided with a main valve, and the side valve is arranged on both sides of the casing head. The casing centralizer is in a tubular shape, and is inserted at the opening of the casing head, and the exposed height is higher than the sealing ring at the end face of the casing head, the outer wall of the casing centralizer is provided with a FS type sealing ring and an S sealing ring, the casing pipe enter the four-cross transition by the casing pipe penetrates and passes the internal diameter of the casing centralizer from casing head. The geothermal well assembly has the advantages that the flushing performance is good, the wear resistance is difficult, and installation is easy, and the request to utilize in complex geothermal is satisfied.
Description
Technical field
The present invention relates to field of petroleum machinery, specifically a kind of underground heat well head with casing centering structure.
Background technology
With growth of the whole world to clear energy sources demand, the exploitation and use of geothermal energy resources is more and more ordinary, and because geotemperature reaches 400 DEG C and there are a large amount of fine sand stones to exist for underground, therefore, underground heat well head and pipeline are needed with protection against erosion, requirement corrosion-resistant, easy to install.
The content of the invention
It is an object of the present invention to provide a kind of protection against erosion met used in complicated geothermal environment, well head assembly easy to install.
In order to achieve the above object, the present invention is realized in：
A kind of underground heat well head assembly with casing centering structure, it includes sleeve pipe, casing head, main valve and side valve, also include casing stabbing board, transition four-way, the end face that casing head top is connected with transition four-way and connects at both is additionally provided with sealing ring, casing head top open part is also interior to be provided with casing stabbing board, main valve is provided with the top of transition four-way, side valve is located at casing head two bottom sides；Described casing stabbing board is embedded in the height exposed after casing head top open part more than height that casing head end-face seal ring is located in tubular its, the outer wall of the casing stabbing board is provided with FS types sealing ring and S-shaped sealing ring, and sleeve pipe is penetrated from casing head and enters transition four-way through casing stabbing board internal diameter.
The described underground heat well head assembly with casing centering structure, main valve and side valve are high-temperature expansion sluice valve, and the high temperature expansion valve includes valve gap, valve rod, valve body, flashboard and valve seat；Stem bottom is connected with flashboard, valve rod, flashboard are in valve body, body top is stamped valve gap, valve stem top stretches out from valve gap, the flashboard includes flashboard great Ye, flashboard leaflet, and in valve body, rotation valve rod further drives flashboard great Ye, flashboard leaflet movement and contacts with valve seat and realize sealing valve seat, a sealing space is provided between valve rod and valve gap, soft sealing material is filled with the space；Valve seat, flashboard great Ye, flashboard leaflet have cobalt-base alloys extexine, and valve rod has molybdenum bisuphide extexine.
The described underground heat well head assembly with casing centering structure, high-temperature expansion sluice valve also includes injection valve, the injection valve is communicated on valve gap and with sealing space, and the soft sealing material filled between valve rod and valve gap is graphite, and graphite is sent into sealing space by injection moulding valve.
The described underground heat well head assembly with casing centering structure, on the valve body of high-temperature expansion sluice valve safety relief valve is provided with.
The described underground heat well head assembly with casing centering structure, is additionally provided with blowoff valve on the valve body of high-temperature expansion sluice valve, the blowoff valve is located at the bottom of valve body and positioned at flashboard and the lower section of valve seat.
This geothermal well mouth assembly tool has the advantage that：
1st, from graphite material as soft sealed packing, by being molded valve periodically to injection graphite bar, so as to solution, by no means soft sealing material is lost at the scene caused valve leak problem.
2nd, there are a large amount of sand grains in underground heat well head medium, there is antiscour requirement to valve door sealing surfaces；This geothermal well mouth assembly adopts cobalt-base alloys built-up welding, solve the problems, such as bi-material built-up welding crack resistence at different temperatures, compared with 0.15 millimeter of WC of surface spraying one layer, service life is obviously prolonged, and surface spraying layer has also will not fall off phenomenon in use.
3rd, each valve of this geothermal well mouth assembly adopts expansion type structure design, by spraying molybdenum bisuphide to stem surface, improves the surface smoothness of valve rod and flashboard screw-driven, solves expansion sluice valve operational torque power.
4th, with the addition of protection bushing at the gasket ring of casing head, it is to avoid wash away phenomenon, be effectively improved gasket ring service life.
Description of the drawings
Fig. 1 is the structural representation of this assembly.
Fig. 2 is the structural representation of high temperature expansion valve.
Fig. 3 is the mounting structure partial enlarged drawing of sleeve pipe, transition four-way and casing stabbing board.
Specific embodiment
The present invention is further illustrated below by way of specific embodiment.
As shown in Figure 1, Figure 3, a kind of underground heat well head assembly with casing centering structure, it includes sleeve pipe 1, casing head 2, main valve 3 and side valve 4, also include casing stabbing board 5, transition four-way 6, the end face that the top of casing head 2 is connected with transition four-way 6 and connects at both is additionally provided with sealing ring 7, the top open part of casing head 2 is also interior to be provided with casing stabbing board 5, and the top of transition four-way 6 is provided with main valve 3, and side valve 4 is located at the two bottom sides of casing head 4；Described casing stabbing board 5 is embedded in the height exposed after the top open part of casing head 2 more than height that 2 end-face seal ring of casing head 7 is located in tubular its, the outer wall of the casing stabbing board 5 is provided with FS types sealing ring 51 and S-shaped sealing ring 52, and sleeve pipe 1 is penetrated and enter transition four-way through the internal diameter of casing stabbing board 5 from casing head 2.
The described underground heat well head assembly with casing centering structure, main valve 3 and side valve 4 are high-temperature expansion sluice valve, and high temperature expansion valve described in the high temperature expansion valve includes valve gap 341, valve rod 342, valve body 345, flashboard 344 and valve seat 343；The bottom of valve rod 342 is connected with flashboard 344, valve rod 342, flashboard 344 are in valve body 345, it is stamped valve gap 341 in the top of valve body 345, stretch out from valve gap 341 at the top of valve rod 342, the flashboard 344 includes flashboard great Ye 3441, flashboard leaflet 3442, valve seat 343 is in valve body 345, rotation valve rod 342 further drives flashboard great Ye 3441, flashboard leaflet 3442 to move and contact with valve seat 343 and realize sealing, a sealing space is provided between valve rod 342 and valve gap 341, soft sealing material 349 is filled with the space；Valve seat 343, flashboard great Ye 3441, flashboard leaflet 3442 have cobalt-base alloys extexine, and valve rod 342 has molybdenum bisuphide extexine.
The described heavy-caliber high-temperature expansion valve for underground heat well head, also include injection valve 346, the injection valve 346 is communicated on valve gap 341 and with sealing space, and the soft sealing material 349 filled between valve rod 342 and valve gap 341 is graphite, and graphite is sent into sealing space by injection moulding valve.
The described heavy-caliber high-temperature expansion valve for underground heat well head, is provided with safety relief valve 347 on valve body 1.
The described heavy-caliber high-temperature expansion valve for underground heat well head, is additionally provided with blowoff valve 348 on valve body 341, the blowoff valve 348 is located at the bottom of valve body 343 and positioned at flashboard 344 and the lower section of valve seat 343.
This geothermal well mouth assembly tool has the advantage that：
1st, from graphite material as soft sealed packing, by being molded valve periodically to injection graphite bar, so as to solution, by no means soft sealing material is lost at the scene caused valve leak problem.
2nd, there are a large amount of sand grains in underground heat well head medium, there is antiscour requirement to valve door sealing surfaces；This geothermal well mouth assembly adopts cobalt-base alloys built-up welding, solve the problems, such as bi-material built-up welding crack resistence at different temperatures, compared with 0.15 millimeter of WC of surface spraying one layer, service life is obviously prolonged, and surface spraying layer has also will not fall off phenomenon in use.
3rd, each valve of this geothermal well mouth assembly adopts expansion type structure design, by spraying molybdenum bisuphide to stem surface, improves the surface smoothness of valve rod and flashboard screw-driven, solves expansion sluice valve operational torque power.
4th, with the addition of protection bushing at the gasket ring of casing head, it is to avoid wash away phenomenon, be effectively improved gasket ring service life.
Claims (5)
1. a kind of underground heat well head assembly with casing centering structure, it includes sleeve pipe, casing head, main valve and side valve, it is characterized in that：Also include casing stabbing board, transition four-way, the end face that casing head top is connected with transition four-way and connects at both is additionally provided with sealing ring, casing head top open part is also interior to be provided with casing stabbing board, and main valve is provided with the top of transition four-way, and side valve is located at casing head two bottom sides；Described casing stabbing board is embedded in the height exposed after casing head top open part more than height that casing head end-face seal ring is located in tubular its, the outer wall of the casing stabbing board is provided with FS types sealing ring and S-shaped sealing ring, and sleeve pipe is penetrated from casing head and enters transition four-way through casing stabbing board internal diameter.
2. the underground heat well head assembly with casing centering structure according to claim 1, is characterized in that：Main valve and side valve are high-temperature expansion sluice valve, and the high temperature expansion valve includes valve gap, valve rod, valve body, flashboard and valve seat；Stem bottom is connected with flashboard, valve rod, flashboard are in valve body, body top is stamped valve gap, valve stem top stretches out from valve gap, the flashboard includes flashboard great Ye, flashboard leaflet, and in valve body, rotation valve rod further drives flashboard great Ye, flashboard leaflet movement and contacts with valve seat and realize sealing valve seat, a sealing space is provided between valve rod and valve gap, soft sealing material is filled with the space；Valve seat, flashboard great Ye, flashboard leaflet have cobalt-base alloys extexine, and valve rod has molybdenum bisuphide extexine.
3. the underground heat well head assembly with casing centering structure according to claim 2, is characterized in that：High-temperature expansion sluice valve also includes injection valve, and the injection valve is communicated on valve gap and with sealing space, and the soft sealing material filled between valve rod and valve gap is graphite, and graphite is sent into sealing space by injection moulding valve.
4. the underground heat well head assembly with casing centering structure according to claim 2, is characterized in that：Safety relief valve is provided with the valve body of high-temperature expansion sluice valve.
5. the underground heat well head assembly with casing centering structure according to claim 2, is characterized in that：Blowoff valve is additionally provided with the valve body of high-temperature expansion sluice valve, the blowoff valve is located at the bottom of valve body and positioned at flashboard and the lower section of valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719054.8A CN106639951A (en) | 2015-10-30 | 2015-10-30 | Geothermal well assembly of the structure of a tube with casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719054.8A CN106639951A (en) | 2015-10-30 | 2015-10-30 | Geothermal well assembly of the structure of a tube with casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106639951A true CN106639951A (en) | 2017-05-10 |
Family
ID=58831249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510719054.8A Pending CN106639951A (en) | 2015-10-30 | 2015-10-30 | Geothermal well assembly of the structure of a tube with casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106639951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150420A (en) * | 2016-08-02 | 2016-11-23 | 江苏利文机械有限公司 | A kind of thermal production well mouth |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203409A (en) * | 1992-01-27 | 1993-04-20 | Cooper Industries, Inc. | Geothermal well apparatus and eccentric hanger spool therefor |
| US20080196883A1 (en) * | 2006-11-15 | 2008-08-21 | Testa Gero D | Centralizing apparatus |
| CN203641546U (en) * | 2013-11-21 | 2014-06-11 | 上海新莲泵阀有限公司 | Hydraulic drive flat valve |
| CN204025727U (en) * | 2014-08-11 | 2014-12-17 | 宁波埃美柯铜阀门有限公司 | Steel plateform gate valve |
| CN104499982A (en) * | 2014-12-22 | 2015-04-08 | 中国石油天然气股份有限公司 | Electric oil producing wellhead integrated device |
| CN204691741U (en) * | 2015-06-11 | 2015-10-07 | 河南双发石油装备制造股份有限公司 | High sulfur resistive gas wellhead equipment |
| CN205225142U (en) * | 2015-10-30 | 2016-05-11 | 上海新莲泵阀有限公司 | Take sleeve pipe to set upright or straight geothermol power well head assembly of structure |
-
2015
- 2015-10-30 CN CN201510719054.8A patent/CN106639951A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203409A (en) * | 1992-01-27 | 1993-04-20 | Cooper Industries, Inc. | Geothermal well apparatus and eccentric hanger spool therefor |
| US20080196883A1 (en) * | 2006-11-15 | 2008-08-21 | Testa Gero D | Centralizing apparatus |
| CN203641546U (en) * | 2013-11-21 | 2014-06-11 | 上海新莲泵阀有限公司 | Hydraulic drive flat valve |
| CN204025727U (en) * | 2014-08-11 | 2014-12-17 | 宁波埃美柯铜阀门有限公司 | Steel plateform gate valve |
| CN104499982A (en) * | 2014-12-22 | 2015-04-08 | 中国石油天然气股份有限公司 | Electric oil producing wellhead integrated device |
| CN204691741U (en) * | 2015-06-11 | 2015-10-07 | 河南双发石油装备制造股份有限公司 | High sulfur resistive gas wellhead equipment |
| CN205225142U (en) * | 2015-10-30 | 2016-05-11 | 上海新莲泵阀有限公司 | Take sleeve pipe to set upright or straight geothermol power well head assembly of structure |
Non-Patent Citations (1)
| Title |
|---|
| 《机械基础产品选用手册》编写组: "《机械基础产品选用手册》", 合肥工业大学出版社, pages: 154 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150420A (en) * | 2016-08-02 | 2016-11-23 | 江苏利文机械有限公司 | A kind of thermal production well mouth |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |