CN106639949A - Anti-washout geothermal well mouth assembly - Google Patents
Anti-washout geothermal well mouth assembly Download PDFInfo
- Publication number
- CN106639949A CN106639949A CN201510717754.3A CN201510717754A CN106639949A CN 106639949 A CN106639949 A CN 106639949A CN 201510717754 A CN201510717754 A CN 201510717754A CN 106639949 A CN106639949 A CN 106639949A
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- casing head
- underground heat
- protection against
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000003628 erosive effect Effects 0.000 claims description 15
- 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
- 238000005260 corrosion Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract 4
- 238000005507 spraying Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 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
- 238000005516 engineering process Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The invention relates to the field of petroleum machinery and specifically relates to an anti-washout geothermal well mouth assembly. The assembly comprises a casing head, a transition joint, a main valve and lateral valves, wherein the casing head, the transition joint, the main valve and the lateral valve are connected by flanges; a sealing cushion ring is inlaid in the top end face of the casing head, and the top part is connected to the bottom of the transition joint; the top part of the transition joint is connected to the main valve; and the two lateral valves are symmetrically connected to two sides of the bottom part of the casing head. The assembly is characterized by comprising a guide bushing, wherein the guide bushing is inlaid in a port formed in the top of the casing head; and the head section of the guide bushing stretches out from the end part of the connecting flange and is higher than the plane of the sealing cushion ring. The geothermal well mouth assembly has the advantages of anti-washout performance, wear resistance and anti-corrosion performance, and can be used as a well mouth machine in a complicated geothermal environment.
Description
Technical field
The present invention relates to field of petroleum machinery, the underground heat well head assembly of specifically a kind of protection against erosion.
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 need just have heat-resisting, protection against erosion, corrosion resistant requirement.
The content of the invention
It is an object of the present invention to provide a kind of well head assembly met used in complicated geothermal environment.
In order to achieve the above object, the present invention is realized in：
A kind of underground heat well head assembly of protection against erosion, it includes casing head, transit joint, main valve and side valve, and described sleeve pipe head, the connection between transit joint, main valve and side valve are connected using flange；Wherein, casing head top end face is embedded with gasket ring and the top is connected with transit joint bottom, transit joint top is connected with main valve, casing head two bottom sides are respectively symmetrically and are connected with two side valves, also include pilot bushing, pilot bushing is embedded in casing head top port, and the head section of pilot bushing stretches out adpting flange end and higher than gasket ring place plane.
The underground heat well head assembly of described protection against erosion, 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 underground heat well head assembly of described protection against erosion, 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.
The underground heat well head assembly of described protection against erosion, on the valve body of high-temperature expansion sluice valve safety relief valve is provided with.
The underground heat well head assembly of described protection against erosion, 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 geothermal well mouth assembly.
Fig. 2 is the structural representation of high temperature expansion valve.
Fig. 3 is casing head and transit joint junction partial enlarged drawing.
Specific embodiment
The present invention is further illustrated below by way of specific embodiment.
As shown in Figure 1, Figure 3, the underground heat well head assembly of a kind of protection against erosion, it includes casing head 1, transit joint 2, main valve 3 and side valve 4, and the connection between described sleeve pipe 1, transit joint 2, main valve 3 and side valve 4 is connected using flange；Wherein, the top end face of casing head 1 is embedded with gasket ring 5 and the casing head top is connected with the bottom of transit joint 2, the top of transit joint 2 is connected with main valve 3, the two bottom sides of casing head 1 are respectively symmetrically and are connected with two side valves 4, also include pilot bushing 21, pilot bushing 21 is embedded in the top port of casing head 1, and the head section of pilot bushing 21 stretches out adpting flange end and higher than the place plane of gasket ring 5.
As shown in Fig. 2 the underground heat well head assembly of described protection against erosion, main valve 3 and side valve 4 are high-temperature expansion sluice valve, 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. the underground heat well head assembly of a kind of protection against erosion, it includes casing head, transit joint, main valve and side valve, and described sleeve pipe head, the connection between transit joint, main valve and side valve are connected using flange；Wherein, casing head top end face is embedded with gasket ring and the top is connected with transit joint bottom, and transit joint top is connected with main valve, and casing head two bottom sides are respectively symmetrically and are connected with two side valves, it is characterized in that：Also include pilot bushing, pilot bushing is embedded in casing head top port, the head section of pilot bushing stretches out adpting flange end and higher than gasket ring place plane.
2. the underground heat well head assembly of protection against erosion 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 of protection against erosion 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 of protection against erosion 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 of protection against erosion 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 |
|---|---|---|---|
| CN201510717754.3A CN106639949A (en) | 2015-10-30 | 2015-10-30 | Anti-washout geothermal well mouth assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717754.3A CN106639949A (en) | 2015-10-30 | 2015-10-30 | Anti-washout geothermal well mouth assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106639949A true CN106639949A (en) | 2017-05-10 |
Family
ID=58829781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510717754.3A Pending CN106639949A (en) | 2015-10-30 | 2015-10-30 | Anti-washout geothermal well mouth assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106639949A (en) |
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 |
| CN205225143U (en) * | 2015-10-30 | 2016-05-11 | 上海新莲泵阀有限公司 | Scour prevention's geothermol power well head assembly |
-
2015
- 2015-10-30 CN CN201510717754.3A patent/CN106639949A/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 |
| CN205225143U (en) * | 2015-10-30 | 2016-05-11 | 上海新莲泵阀有限公司 | Scour prevention's geothermol power well head assembly |
Non-Patent Citations (1)
| Title |
|---|
| 《机械基础产品选用手册》编写组: "高技术陶瓷材料", vol. 1, 合肥工业大学出版社, pages: 154 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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 |