CN203925325U - A kind of high abrasion high pressure seal structure of tool joint - Google Patents
A kind of high abrasion high pressure seal structure of tool joint Download PDFInfo
- Publication number
- CN203925325U CN203925325U CN201420327207.5U CN201420327207U CN203925325U CN 203925325 U CN203925325 U CN 203925325U CN 201420327207 U CN201420327207 U CN 201420327207U CN 203925325 U CN203925325 U CN 203925325U
- Authority
- CN
- China
- Prior art keywords
- sealing
- conical surface
- female adapter
- male connection
- tool joint
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- 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 - Lifetime
Links
- 238000005299 abrasion Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 239000004744 fabric Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a kind of high abrasion high pressure seal structure of tool joint.It comprises male connection and female adapter, the screw thread that passes through to have vertically identical tapering of described male connection and female adapter, it is characterized in that: described male connection is provided with sealing male cone (strobilus masculinus) from thread segment to joint end face, described female adapter is provided with sealing inner conical surface from thread segment to joint inner face; Described male connection and female adapter screw thread seal male cone (strobilus masculinus) while having screwed be that the conical surface and adopting conical surface interference are sealed and matched with sealing inner conical surface.Its hermetically-sealed construction has sealing contact surface length, sealing load high, this structure and process can bear tool joint repeatedly screw with sealing surface repeatedly go up shackle extrusion abrasion, can meet the needs that utilize drill stem testing in high-pressure gas well, ultradeep well, Horizontal Well Drilling well operations and drillng operation, therefore possess good popularization and application scenario.
Description
Technical field
The utility model relates to the high abrasion high pressure seal structure of the tool joint, particularly a kind of tool joint used in deep-well, ultradeep well and particular oils gas well recovery process.
Background technology
Along with the development of oil exploration technology and the expansion of Exploration Domain, the special oil and gas pools such as deep oil-gas reservoir, HTHP oil-gas reservoir, sulfur crude gas reservoir, Condensate Gas Reservoir are found in succession, the measuring technology of hp-ht well and exceptional well thereof starts to be used widely, oil-gas mining is in the urgent need to the tool joint of a kind of not only wear-resisting but also high-pressure-resistant sealed, to meet high-pressure gas well, deep-well, the needs of ultradeep well drilling operation.
In the design of existing API standard, tool joint is without Seal Design.In Chinese patent 200520039379.3, provide a kind of hermetic seal header structure, but owing to using organic material sealing ring mode to seal, sealability is limited in this tool joint, and just in main shoulder position, has Seal Design.Chinese patent 200520039378.9 and 200920208129.6 provides a kind of metal air-tight seal structure, in two patents, shape metallic leak-proof structure is the conical surface to sphere interference fit seal, sealing contact surface is that toroid seal wear-resistant is poor, sealability is limited, in the use procedure of ball face sealing contact surface, sealing face damage is larger, is not suitable for the often working environment of dismounting of joint of petroleum drill rod.
Summary of the invention
The purpose of this utility model is to provide a kind of high abrasion high pressure seal structure of tool joint, mainly solve the existing technical problem of above-mentioned prior art, its hermetically-sealed construction has sealing contact surface length, sealing load high, this structure and process can bear tool joint repeatedly screw with sealing surface repeatedly go up shackle extrusion abrasion, can meet the needs that utilize drill stem testing in high-pressure gas well, ultradeep well, Horizontal Well Drilling well operations and drillng operation, therefore possess good popularization and application scenario
For what solve the problems of the technologies described above, the technical solution of the utility model is:
A kind of high abrasion high pressure seal structure of tool joint, comprise male connection and female adapter, the screw thread that passes through to have vertically identical tapering of described male connection and female adapter, it is characterized in that: described male connection is provided with sealing male cone (strobilus masculinus) from thread segment to joint end face, described female adapter is provided with sealing inner conical surface from thread segment to joint inner face; Described male connection and female adapter screw thread seal male cone (strobilus masculinus) while having screwed be that the conical surface and adopting conical surface interference are sealed and matched with sealing inner conical surface.
The high abrasion high pressure seal structure of described tool joint, is characterized in that: described male connection sealing male cone (strobilus masculinus) has wearing layer.
The high abrasion high pressure seal structure of described tool joint, is characterized in that: described female adapter sealing inner conical surface has wearing layer.
The high abrasion high pressure seal structure of described tool joint, is characterized in that: the wearing layer of described male connection sealing male cone (strobilus masculinus) and the wear-resisting layered fabric type hardness of female adapter sealing inner conical surface are greater than HB490, wearing layer thickness >=2mm.
This structure that tool joint of the present utility model adopts, the metal conical surface and the metal adopting conical surface interference hermetically-sealed construction that is sealed and matched has that sealing contact surface is grown, sealing load high.At male connection sealing male cone (strobilus masculinus) and female adapter sealing inner conical surface, by cladding high-abrasive material or special treatment technology, form the wearing layer of high rigidity, this structure and process can bear tool joint repeatedly screw with sealing surface repeatedly go up shackle extrusion abrasion, can meet the needs that utilize drill stem testing in high-pressure gas well, ultradeep well, Horizontal Well Drilling well operations and drillng operation, therefore possess good popularization and application scenario.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
As Fig. 1, the utility model discloses the antitorque high pressure sealing drilling rod joint of a kind of height for oil-gas mining, comprise male connection 1 and female adapter 2, the screw thread that passes through to have vertically identical tapering of male connection 1 and female adapter 2.Described male connection 1 is from thread segment 11 to being provided with sealing male cone (strobilus masculinus) 13 joint end face 12, described female adapter 2 is from thread segment 21 to being provided with sealing inner conical surface 23 joint inner face 22, and described male connection 1 and female adapter 2 screw threads seal male cone (strobilus masculinus) 13 and sealing inner conical surface 23 and are sealed and matched for the conical surface and adopting conical surface interference while having screwed.
Male connection 1 sealing male cone (strobilus masculinus) 13 has wearing layer 14.
Female adapter 2 sealing inner conical surfaces 23 have wearing layer 24.
The wearing layer 24 cloth formula hardness of the wearing layer 14 of male connection 1 sealing male cone (strobilus masculinus) 13 and female adapter 2 sealing inner conical surfaces 23 are greater than HB490, wearing layer thickness >=2mm.
Due between male connection 1 and female adapter 2 by the sealing that is sealed and matched of the metal conical surface and metal adopting conical surface interference, it is long that hermetically-sealed construction has sealing contact surface, sealing load high, in addition at male connection sealing male cone (strobilus masculinus) and female adapter sealing inner conical surface, by cladding high-abrasive material, form the wearing layer of high rigidity, this structure and process can bear tool joint repeatedly screw with sealing surface repeatedly go up shackle extrusion abrasion, can meet high-pressure gas well, ultradeep well, in Horizontal Well Drilling well operations and drillng operation, utilize the needs of drill stem testing, therefore possess good popularization and application scenario.
Be only preferred embodiment of the present utility model in sum, be not used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification all should be technology category of the present utility model.
Claims (4)
1. the high abrasion high pressure seal structure of a tool joint, comprise male connection and female adapter, the screw thread that passes through to have vertically identical tapering of described male connection and female adapter, it is characterized in that: described male connection is provided with sealing male cone (strobilus masculinus) from thread segment to joint end face, described female adapter is provided with sealing inner conical surface from thread segment to joint inner face; Described male connection and female adapter screw thread seal male cone (strobilus masculinus) while having screwed be that the conical surface and adopting conical surface interference are sealed and matched with sealing inner conical surface.
2. the high abrasion high pressure seal structure of tool joint according to claim 1, is characterized in that: described male connection sealing male cone (strobilus masculinus) has wearing layer.
3. the high abrasion high pressure seal structure of tool joint according to claim 1 and 2, is characterized in that: described female adapter sealing inner conical surface has wearing layer.
4. the high abrasion high pressure seal structure of tool joint according to claim 3, is characterized in that: the wearing layer of described male connection sealing male cone (strobilus masculinus) and the wear-resisting layered fabric type hardness of female adapter sealing inner conical surface are greater than HB490, wearing layer thickness >=2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420327207.5U CN203925325U (en) | 2014-06-19 | 2014-06-19 | A kind of high abrasion high pressure seal structure of tool joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420327207.5U CN203925325U (en) | 2014-06-19 | 2014-06-19 | A kind of high abrasion high pressure seal structure of tool joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925325U true CN203925325U (en) | 2014-11-05 |
Family
ID=51821154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420327207.5U Expired - Lifetime CN203925325U (en) | 2014-06-19 | 2014-06-19 | A kind of high abrasion high pressure seal structure of tool joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130839A (en) * | 2019-04-30 | 2019-08-16 | 中国石油天然气集团有限公司 | A kind of ring seal structure of coupling |
-
2014
- 2014-06-19 CN CN201420327207.5U patent/CN203925325U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130839A (en) * | 2019-04-30 | 2019-08-16 | 中国石油天然气集团有限公司 | A kind of ring seal structure of coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |