CN2851501Y - Positioning device for whipstock - Google Patents
Positioning device for whipstock Download PDFInfo
- Publication number
- CN2851501Y CN2851501Y CN 200520135952 CN200520135952U CN2851501Y CN 2851501 Y CN2851501 Y CN 2851501Y CN 200520135952 CN200520135952 CN 200520135952 CN 200520135952 U CN200520135952 U CN 200520135952U CN 2851501 Y CN2851501 Y CN 2851501Y
- Authority
- CN
- China
- Prior art keywords
- lock pin
- joint
- groove
- rectangular
- positioning
- 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 - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a whipstock positioning device for well drilling completion operation of oil-gas fields, which is mainly composed of a prefabricated positioning pup joint and a positioning joint, wherein the prefabricated positioning pup joint is a circular ring body, one side of the upper end part of the circular ring body is provided with an inclined plane, the bottom part of the inclined plane is provided with a rectangular semi-through groove, and a rectangular through groove is arranged in a circumferential direction position corresponding to the semi-through groove; the middle part of a partial lower joint of the positioning joint is provided with a rectangular convex key matched with the rectangular through groove of the prefabricated positioning pup joint; a lock pin and a screw plug are arranged in a radial direction through hole at the middle part of the rectangular convex key, and the lower end of the lock pin is provided with a step matched with a step of a radial direction through hole of the lower joint; the step of the lock pin is sheathed in a compression spring, the bottom of the lock pin extends out a part of the lower joint, the bottom end of the lower joint forms a taper shape, and liquid flow holes uniformly distributed in circumferential direction are arranged on a taper-shaped body. By adopting the technical scheme, the utility model realizes the reproducibility of operation and has the advantages of simple operation and security.
Description
Technical field
The utility model relates to oilfield drilling, completion practice instrument, particularly a kind of whipstock positioner.
Background technology
The branch hole drilling technology is that thereby sidetracking goes out the technology that two or more branch well holes improve the oil mining effect in a well.The key technology of Multilateral Wells construction is mainly: the reenterability of window sealing, mechanics integrality and branch well hole.At present, on-the-spot Multilateral Wells embodiment is less, and branch well window place design of string pipe complex structure, and corresponding brill completion supporting technology is had relatively high expectations, and difficulty of construction is bigger, affects branch hole drilling The Application of Technology and popularization.
Summary of the invention
The purpose of this utility model is to provide a kind of can simplify Multilateral Wells deflector equipment structure, convenient follow-up window sidetracking, creep into and the whipstock positioner of reentry construction operation such as well workover.
The utility model mainly is made up of prefabricated orientation spool, landing nipple, prefabricated orientation spool is a torus, its upper end one side is the inclined-plane with certain angle, in bottom, torus inclined-plane one rectangular through slot is arranged, and has the saturating groove of rectangle on the circumferential position relative with this groove; The landing nipple part is made up of top connection 1, plug screw 4, lock pin 5, compression spring 6, lower contact 7 etc., there is the protruding key of a rectangle at lower contact 7 middle parts, match with the rectangular through slot of prefabricated orientation spool, the protruding key medium position of rectangle has radial direction through hole, lock pin 5, plug screw 4 are housed in it successively, there is step lock pin 5 lower ends, match with the step of the radial direction through hole of lower contact 7, compression spring 6 is sleeved on the step of lock pin 5, a lower contact part is stretched out in lock pin 5 bottoms, lower contact 7 bottoms are tapered, and circumferentially uniform liquid flow hole is arranged on bullet.
The utility model is provided with the protruding key of groove and landing nipple and the lock pin incompatible purpose that is reached for the whipstock location that partly matches by prefabricated orientation spool, finish after the relevant operation can by on carry and cut off lock pin whipstock and landing nipple are proposed in the well, realize the repeatability of this operation, and the utlity model has simple to operate, safe and reliable advantage.
Description of drawings
The prefabricated orientation spool front view of Fig. 1 the utility model
The prefabricated orientation spool vertical view of Fig. 2 the utility model
Fig. 3 the utility model landing nipple structural representation
Specific embodiments
The utility model is described in more detail below in conjunction with accompanying drawing.
As shown in Figure 1, 2, 3, the utility model mainly is made up of prefabricated orientation spool, landing nipple, prefabricated orientation spool is a torus, its upper end one side is the inclined-plane with certain angle, in bottom, torus inclined-plane is a rectangular through slot, has the saturating groove of rectangle on the circumferential position relative with this groove; The landing nipple part is made up of top connection 1, plug screw 4, lock pin 5, compression spring 6, lower contact 7 etc., and top connection 1 is adopted to be threaded with lower contact 7 and is connected, and connection of thread is equipped with backing-up screw 2 and " O " RunddichtringO 3.There is the protruding key of a rectangle at lower contact 7 middle parts, match with the rectangular through slot of prefabricated orientation spool, and protruding key bottom is equipped with " O " RunddichtringO 8.The protruding key medium position of rectangle has a radial direction through hole, lock pin 5, plug screw 4 are housed in it successively, there is step lock pin 5 lower ends, match with the step of the radial direction through hole of lower contact 7, and compression spring 6 is sleeved on the step of lock pin 5, a lower contact part is stretched out in lock pin 5 bottoms, form a protruding key, this protruding key is the garden column, and one side is processed with an inclined-plane towards the bottom surface, lower contact 7 bottoms are tapered, and circumferentially uniform liquid flow hole is arranged on bullet.
The utility model operating principle is as follows: the correct position at main borehole well cementation pipe string connects prefabricated orientation spool of the present utility model, after finishing the main borehole well cementation, utilize the keyway orientation of prefabricated orientation spool under landing nipple of the present utility model and the gyroscope drilling assembly measuring well, specific implementation process is as follows: landing nipple is connected measures drilling assembly bottom, connect the gyro to measure pipe nipple above it.When this drilling assembly down to the down-hole during prefabricated orientation spool position, the automatic guide of landing nipple can be realized in inclined-plane on the prefabricated orientation spool, in the process of descending tubing string, lock pin 5 in the lower contact 7 of landing nipple moves radially at the restriction lower compression spring 6 of external diameter, and consistent with the external diameter of lower contact 7.The protruding bar seat of rectangle on coming downwards to landing nipple is in the keyway of prefabricated orientation spool the time, and the lock pin 5 on the landing nipple just to the saturating groove of the rectangle place of prefabricated orientation spool, ejects owing to lost the external diameter restriction, thereby locks herein.After having surveyed prefabricated orientation spool keyway orientation, on submit into drilling assembly, cut off the lock pin 5 in the landing nipple, can propose smoothly measuring drilling tool.During following whipstock drilling assembly, landing nipple of the present utility model partly is connected the foot of whipstock combination, operating type is identical when measuring prefabricated orientation spool, and different is, the upper end connection of landing nipple be whipstock.
Claims (1)
1. whipstock positioner, mainly form by prefabricated orientation spool, landing nipple, it is characterized in that: prefabricated orientation spool is a torus, its upper end one side is the inclined-plane with certain angle, in bottom, torus inclined-plane one rectangle, half groove is arranged, have the saturating groove of rectangle on the circumferential position relative with this groove; The landing nipple part is by top connection (1), plug screw (4), lock pin (5), compression spring (6), lower contact (7) is formed, there is the protruding key of a rectangle at lower contact (7) middle part, match with the rectangular through slot of prefabricated orientation spool, the protruding key medium position of rectangle has radial direction through hole, lock pin (5) is housed in it successively, plug screw (4), there is step lock pin (5) lower end, match with the step of the radial direction through hole of lower contact (7), compression spring (6) is sleeved on the step of lock pin (5), a lower contact part is stretched out in lock pin (5) bottom, lower contact (7) bottom is tapered, and circumferentially uniform liquid flow hole is arranged on bullet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520135952 CN2851501Y (en) | 2005-11-18 | 2005-11-18 | Positioning device for whipstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520135952 CN2851501Y (en) | 2005-11-18 | 2005-11-18 | Positioning device for whipstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851501Y true CN2851501Y (en) | 2006-12-27 |
Family
ID=37585457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520135952 Expired - Lifetime CN2851501Y (en) | 2005-11-18 | 2005-11-18 | Positioning device for whipstock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851501Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184858A (en) * | 2011-12-29 | 2013-07-03 | 四川安东油气工程技术服务有限公司 | Limiting device |
| CN106761432A (en) * | 2016-12-23 | 2017-05-31 | 山河智能装备股份有限公司 | A kind of band impactor combined drilling tool locking device |
| CN112610157A (en) * | 2020-12-22 | 2021-04-06 | 濮阳博瑞特石油工程技术有限公司 | Prevent changeing stack formula director |
-
2005
- 2005-11-18 CN CN 200520135952 patent/CN2851501Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184858A (en) * | 2011-12-29 | 2013-07-03 | 四川安东油气工程技术服务有限公司 | Limiting device |
| CN103184858B (en) * | 2011-12-29 | 2016-06-08 | 四川安东油气工程技术服务有限公司 | Stop means |
| CN106761432A (en) * | 2016-12-23 | 2017-05-31 | 山河智能装备股份有限公司 | A kind of band impactor combined drilling tool locking device |
| CN112610157A (en) * | 2020-12-22 | 2021-04-06 | 濮阳博瑞特石油工程技术有限公司 | Prevent changeing stack formula director |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5394950A (en) | Method of drilling multiple radial wells using multiple string downhole orientation | |
| US5845710A (en) | Methods of completing a subterranean well | |
| US5954134A (en) | Methods of completing a subterranean well and associated apparatus | |
| EP0859123B1 (en) | Method and apparatus for completing wells with lateral branches | |
| CA2229109C (en) | Methods of completing a subterranean well and associated apparatus | |
| US7886842B2 (en) | Apparatus and method for orienting a wellbore servicing tool | |
| US7373995B2 (en) | Method and apparatus for drilling curved boreholes | |
| EP0859124A2 (en) | Method and apparatus for completing wells with lateral branches | |
| US5941321A (en) | Method and apparatus for drilling a planar curved borehole | |
| US20170260834A1 (en) | Multilateral access with real-time data transmission | |
| US7225887B2 (en) | Method of drilling an ultra-short radius borehole | |
| CN2851501Y (en) | Positioning device for whipstock | |
| CN101191407A (en) | Well drilling method for shallow layer thick oil branching well | |
| CN201671557U (en) | Bended head hydraulic rotating joint | |
| CN2866787Y (en) | Whipstock spring block type positioning device | |
| CN105134072B (en) | The shaft bottom transfer and its construction method of super short radial horizontal well drilling well | |
| WO2016014075A1 (en) | Downhole ball valve | |
| CN214836114U (en) | Multi-branch well bore ultra-short radius windowing sidetrack drilling recoverable positioner | |
| US20220259949A1 (en) | Lateral locating assembly for lateral intervention | |
| CN2864066Y (en) | Curve guide shoe for sub-well re-propelling | |
| CN2625555Y (en) | Well bore reentry tool for branch well | |
| CN2615323Y (en) | Recoverable whipstock | |
| CN211201753U (en) | Underground adjustable guiding drilling tool for coiled tubing drilling | |
| WO1994028280A1 (en) | Method of drilling multiple radial wells using multiple string downhole orientation | |
| CN2679339Y (en) | Composite positioning and orienting tool for external slope of drilling well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee after: Western Drilling Kelamayi Drilling Technology Institute Address before: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee before: Research Inst of Drilling Technology, Xinjiang Petroleum Administration |
|
| ASS | Succession or assignment of patent right |
Owner name: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INST Free format text: FORMER OWNER: DRILLING WELL TECHNOLOGY INSTITUTE, PETROLEUM ADMINISTRATION BUREAU, XINJIANG Effective date: 20081212 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061227 |
|
| EXPY | Termination of patent right or utility model |