CN201236656Y - Casing tube windowing and cementing type deflecting unit - Google Patents
Casing tube windowing and cementing type deflecting unit Download PDFInfo
- Publication number
- CN201236656Y CN201236656Y CNU200820026834XU CN200820026834U CN201236656Y CN 201236656 Y CN201236656 Y CN 201236656Y CN U200820026834X U CNU200820026834X U CN U200820026834XU CN 200820026834 U CN200820026834 U CN 200820026834U CN 201236656 Y CN201236656 Y CN 201236656Y
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- cementing
- casing
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- guide
- model
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- Expired - Fee Related
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Abstract
The utility model discloses a casing window cementing-type guide-slanting device which is utilized in the petroleum industry and suitable for the casing window technique for a casing window sidetracking well. The utility model ensures that the guide-slanting device is reinforced through cementing, thereby stabilizing the windows opened on the casing. The utility model is characterized in that the main body of the guide-slanting device is provided with a housing, a lower cone and a lower slip; and a seat sealing cementing device is connected below the lower slip and the lower cone. The utility model can realize the normal seat sealing of the guide-slanting device and the cementing technique after the seat sealing, and ensure the stability of the guide-slanting device, thereby achieving the two purposes of the normal seat sealing and the cementing reinforcement of the guide-slanting device. The utility model also has the advantages of effectively improving the construction quality of casing window sidetracking, avoiding the downhole operation accident in terms of the failure to identify the windows opened on the casing during the window opening process and construction stages such as drilling, well completion and the like, and reducing the manufacturing cost.
Description
Technical field
The utility model relates to the heavy repair task equipment of petroleum industry, and casing sidetracking cementing formula wedge deflection tool particularly is used for the window casing sidetracking technology of well of casing side tracking, reinforces wedge deflection tool by cementing, thereby makes the window of windowing of sleeve pipe firm.
Background technology
Oil field development in, late period, in order to keep the intact and volume increase of oil well, the directed drilling process application the building greatly of oil well, is utilized the intact well section of OW, make the OW volume increase.Wedge deflection tool is the important tool in this technology.In casing sidetracking technology, wedge deflection tool is carried the arrival design attitude at present, the pump truck clear water is suppressed 22MPa seat envelope, trips out top connection and conveying lever then, and being lowered to windows mills awl, and dial rotation is milled and bored the construction of windowing.In construction, be subjected to milling awl extruding, rock, the effect of complicated power such as milling, add the problems such as collar supports insufficient strength that casing cementing quality problems and the corrosion of early water casing burn into cause, cause the stages such as the process neutralization is crept into, completion of windowing to can not find the major accident of window easily.Therefore the on-the-spot fixedly wedge deflection tool body of a kind of firm mode that needs solves the problem of wedge deflection tool downslide and inclined-plane rotation.
Summary of the invention
The purpose of this utility model provides casing sidetracking cementing formula wedge deflection tool, utilizes the cementing of this device, solves the problem of window shakiness, wedge deflection tool shakiness in the present casing sidetracking technology, improves the window construction quality of well of casing side tracking.
Use the technical program, can achieve the above object: casing sidetracking cementing formula wedge deflection tool, the main body of wedge deflection tool is provided with housing, lower cone and lower slips, Connection Block envelope hook-up for cementing below lower slips and lower cone.
The utlity model has following obvious effects: the utility model is connected the below of wedge deflection tool main body, is connected to form the cementing passage with oil pipe, and this device also is provided with a sealing mechanism simultaneously, can satisfy the seat envelope requirement of wedge deflection tool.Realize the normal seat envelope of wedge deflection tool and the seat cementing technology of being honored as a queen, guaranteed the firm of wedge deflection tool, reached the dual purpose of normal seat envelope of wedge deflection tool and cementing reinforcing.Effectively improve the window construction quality of well of casing side tracking, the construction stages such as the process of having avoided windowing neutralization is crept into, completion can not find the underground work accident of casing sidetracking window, thereby have also reduced cost of production.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with embodiment the utility model is done further detailed description: referring to accompanying drawing, casing sidetracking cementing formula wedge deflection tool, comprise the wedge deflection tool main body, the wedge deflection tool main body is provided with housing 1, lower cone 2 and lower slips 3, Connection Block envelope hook-up for cementing below lower slips 3 and lower cone 2.Seat envelope hook-up for cementing comprises adapter sleeve, lower contact 5 and seat sealing mechanism, and lower contact 5 is connected with lower slips 3 by adapter sleeve, and the seat sealing mechanism is installed in the lower contact 5 and is connected with lower cone 2.The seat sealing mechanism comprises tapered sleeve 4 and ball seat 6 down, and ball seat 6 is installed in down in the tapered sleeve 4, and is fixing by shear pin 7.During use, the utility model is connected the design attitude G.I.H of tubing string, arrive the casing sidetracking position of design after, apply hydraulic coupling from ground and promote lower cone 2 and move to afterbody along housing 1, lower slips 3 is released the wedging sleeve pipes realizes the seat envelope.Continuation strengthens hydraulic pressure, ball seat 6 is turned down make it to break away from following tapered sleeve 4 and fall into the shaft bottom, forms the cementing circulation canal.Cement enters from tubing string, by the oil pipe of the utility model and below, returns the oil jacket annular space from the bottom oil pipe again, arrives the top of the utility model wedge deflection tool main body.So far, cement all injects cement with the oil jacket annular space of this wedge deflection tool inside and outside, below oil pipe, wedge deflection tool outside, has reached the purpose of the firm wedge deflection tool of cementing, makes the window of leaving more stable.
Claims (3)
1, casing sidetracking cementing formula wedge deflection tool comprises the wedge deflection tool main body, and the wedge deflection tool main body is provided with housing (1), lower cone (2) and lower slips (3), it is characterized in that at the below of lower slips (3) and lower cone (2) Connection Block envelope hook-up for cementing.
2, casing sidetracking cementing formula wedge deflection tool according to claim 1, it is characterized in that seat envelope hook-up for cementing comprises adapter sleeve, lower contact (5) and seat sealing mechanism, lower contact (5) is connected with lower slips (3) by adapter sleeve, and the seat sealing mechanism is installed in the lower contact (5) and is connected with lower cone (2).
3, casing sidetracking cementing formula wedge deflection tool according to claim 2 is characterized in that a sealing mechanism comprises tapered sleeve (4) and ball seat (6) down, and ball seat (6) is installed in down in the tapered sleeve (4), and is fixing by shear pin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820026834XU CN201236656Y (en) | 2008-08-15 | 2008-08-15 | Casing tube windowing and cementing type deflecting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820026834XU CN201236656Y (en) | 2008-08-15 | 2008-08-15 | Casing tube windowing and cementing type deflecting unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236656Y true CN201236656Y (en) | 2009-05-13 |
Family
ID=40649395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820026834XU Expired - Fee Related CN201236656Y (en) | 2008-08-15 | 2008-08-15 | Casing tube windowing and cementing type deflecting unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236656Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100546A (en) * | 2017-07-06 | 2017-08-29 | 贵州省地质矿产勘查开发局111地质大队 | Slope guiding device directly connected with sleeve |
| CN114961632A (en) * | 2022-04-24 | 2022-08-30 | 中国石油天然气集团有限公司 | Underground three-level environment-friendly treatment method for difficult and complicated well |
-
2008
- 2008-08-15 CN CNU200820026834XU patent/CN201236656Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100546A (en) * | 2017-07-06 | 2017-08-29 | 贵州省地质矿产勘查开发局111地质大队 | Slope guiding device directly connected with sleeve |
| CN114961632A (en) * | 2022-04-24 | 2022-08-30 | 中国石油天然气集团有限公司 | Underground three-level environment-friendly treatment method for difficult and complicated well |
| CN114961632B (en) * | 2022-04-24 | 2023-01-24 | 中国石油天然气集团有限公司 | Underground three-level environment-friendly treatment method for difficult and complicated well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20100815 |