CN2297532Y - Falling-proof clamp joint for side drilling hot recovery well - Google Patents
Falling-proof clamp joint for side drilling hot recovery well Download PDFInfo
- Publication number
- CN2297532Y CN2297532Y CN 97205193 CN97205193U CN2297532Y CN 2297532 Y CN2297532 Y CN 2297532Y CN 97205193 CN97205193 CN 97205193 CN 97205193 U CN97205193 U CN 97205193U CN 2297532 Y CN2297532 Y CN 2297532Y
- Authority
- CN
- China
- Prior art keywords
- falling
- utility
- model
- joint
- proof clamp
- 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
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- Earth Drilling (AREA)
Abstract
The utility model relates to a falling-proof clamp joint for side drilling thermal recovery wells in thick oil fields. The inner circle face of the upper part (1) of the joint is provided with 41/2'API buttress female buckles, the middle part is provided with an annular step, and the lower part (3) is provided with 21/2' flat type oil pipe male buckles. The utility model has the advantages of simple structure, convenient use, and reliable work. By utilizing the utility model, the phenomenon that the casing tube of an oil well is clamped because a pipe column on the upper part breaks and falls off can be effectively prvented from occur, so that the well repairing load can be reduced, and the productive efficiency of oil wells can be enhanced.
Description
The utility model relates to a kind of downhole tool that is used for viscous crude field sidetracking thermal production well.
Adopting sidetracking thermal production well heavy crude producing is a kind of thickened oil recovery new technology that developed recently gets up.At present, because the sidetracking thermal production well does not still have ripe falling-proof clamp technology, thereby often take place to take off and cause the frequent stuck phenomenon that can't overhaul of sleeve pipe, thereby influence normally carrying out of oil well production because of the top tubing string is disconnected.
Task of the present utility model is to provide a kind of sidetracking thermal production well falling-proof clamp joint, utilizes this kind joint can effectively prevent to take off the generation that causes the oil well casing stuck phenomenon because of the top tubing string is disconnected, both can reduce the well-repairing work amount, can improve the oil well production timeliness again.
The utility model is to realize like this.This joint constitutes an integral body by top 1, bottom 3 two parts, and there is a ring-shaped step 2 at the middle part.During use, this joint is connected between 114mm heat pipe and the 62mm instlated tubular, G.I.H, at this moment, " sleeve pipe makes it stuck effect, and joint can play the effect that common instlated tubular becomes button on the whole again to cause 114 instlated tubulars to fall into 5 after the ring-shaped step 2 at joint middle part can play and prevent that the top tubing string is disconnected and take off.
The utility model is simple in structure, and is easy to use, and reliable operation is utilized it can prevent from effectively to take off the generation that causes the oil well casing stuck phenomenon because of the top tubing string is disconnected, thereby can be reduced the well-repairing work amount, improves the oil well production timeliness.This kind falling-proof clamp joint is suitable for extensively employing in the sidetracking thermal production well.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing to applying with explanation in fact.
These falling-proof clamp drill bit overall dimensions are 140mm * 300mm, and latus rectum is 50.3mm, its top (1) external diameter 140mm, and inner headed face is provided with 4 1/2, and " the terraced partially box of API: the wide 67mm of middle bench planar annular (2), bottom (3) are 2 1/2 " plain end oil well pipe pin threads.Whole joint 35CM.Steel integral body is processed into, and makes it hardness through modifier treatment and reach HB240-270.
Claims (1)
1, a kind of sidetracking thermal production well falling-proof clamp drill bit, by top (1), middle part ring-shaped step (2) and bottom (3) formation, it is characterized in that: top (1) external diameter 140mm, inner headed face is provided with 4 1/2, and " the terraced partially box of API; there is a ring-shaped step (2) at the middle part, bottom (3) are 2 1/2 " plain end oil well pipe pin threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205193 CN2297532Y (en) | 1997-01-29 | 1997-01-29 | Falling-proof clamp joint for side drilling hot recovery well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205193 CN2297532Y (en) | 1997-01-29 | 1997-01-29 | Falling-proof clamp joint for side drilling hot recovery well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2297532Y true CN2297532Y (en) | 1998-11-18 |
Family
ID=33925475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205193 Expired - Fee Related CN2297532Y (en) | 1997-01-29 | 1997-01-29 | Falling-proof clamp joint for side drilling hot recovery well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2297532Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762211A (en) * | 2019-11-22 | 2020-02-07 | 李国栋 | Oil well is with thermal-insulated heat preservation abrasionproof oil pipe pin end sealing device |
-
1997
- 1997-01-29 CN CN 97205193 patent/CN2297532Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762211A (en) * | 2019-11-22 | 2020-02-07 | 李国栋 | Oil well is with thermal-insulated heat preservation abrasionproof oil pipe pin end sealing device |
| CN110762211B (en) * | 2019-11-22 | 2024-06-11 | 李国栋 | Heat-insulating wear-proof oil pipe pin end sealing device for oil well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |