CN201581843U - Salvageable safety joint of whipstock - Google Patents
Salvageable safety joint of whipstock Download PDFInfo
- Publication number
- CN201581843U CN201581843U CN2009202481602U CN200920248160U CN201581843U CN 201581843 U CN201581843 U CN 201581843U CN 2009202481602 U CN2009202481602 U CN 2009202481602U CN 200920248160 U CN200920248160 U CN 200920248160U CN 201581843 U CN201581843 U CN 201581843U
- Authority
- CN
- China
- Prior art keywords
- whipstock
- joint
- safety
- lower contact
- safety joint
- 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
Links
- 238000005553 drilling Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a salvageable safety joint of a whipstock, which is used for a completed well of an oil gas multilateral well in an oil filed and consists of an upper joint, safety pins and a lower joint. The upper joint and the lower joint are connected by using the safety pins, the upper part of the upper joint and the lower part of the lower joint are both provided with 75/8'' elliptical buckles, the upper part of the upper joint is connected with the whipstock through screw threads, and the lower part of the lower joint is anchored with the whipstock and is connected with an orienting device through screw threads. The joint solves the problems of low salvaging success rate of a fisher in the prior art. The utility model can be widely applied to the operation of the completed well of the oil gas multilateral well in the oil filed.
Description
Technical field:
The utility model relates to that oilfield multilateral well completion uses a kind ofly drags for the whipstock safety joint.
Background technology:
The characteristics of multilateral well are the casing programme complexity at present, and the well track great majority are horizontal well and high angle hole.The problem that exists is in completion practice at present, it is maximum difficult point that whipstock is salvaged, lack the good instrument of this respect now, because the whipstock external diameter is big, the unclear hole of salvaging of the abrasion condition of windowing is little, under drag at the bottom of the lance fishing success ratio, if whipstock is salvaged not come out, inferior division just can't connect in the well, might cause scrapping of this down-hole branch, succeeds in developing by practice that a kind of auxiliary whipstock fishing tool is a kind of to drag for the whipstock safety joint, it cooperates fishing tool fishing success ratio height, have characteristics such as wide adaptability, solved whipstock stuck after, can't carry out the problem that the Multilateral Wells inferior division connects.
The utility model content:
The purpose of this utility model provides a kind of whipstock safety joint of dragging for, and this joint has solved the low problem of fisher fishing success ratio that exists in the prior art.
The technical scheme that its technical problem that solves the utility model adopts is: a kind ofly drag for the whipstock safety joint, be made up of top connection, safety pin, lower contact, top connection is connected with safety pin with lower contact, and top connection top, lower contact bottom are equipped with 7
5/
8" oval button, top connection top is threaded with whipstock, and the lower contact bottom is connected with bearing unit with the whipstock grappling with screw thread.During construction, before windowing, the whipstock safety joint is connected the lower end of whipstock, be lowered in the well, set and place whipstock, window and branch creep into operation, after the finishing drilling, when salvaging, if the circuitous card of whipstock bottom tubing string with fishing tool, on when mentioning certain tonnage (60t), safety pin is cut off, and the top connection part of the whipstock on top and whipstock safety joint is pulled out, is carrying out bottom whipstock safety joint lower contact salvaging afterwards, because it is big that internal diameter is salvaged in lower contact, available fishing tool is just many.
The beneficial effects of the utility model are that this safety joint is simple in structure, and is easy to use, using this whipstock safety joint cooperates fisher salvaging intensity big, the fishing success ratio height is used this whipstock safety joint and is cooperated the fishing tool salvaging effective, saves the salvaging cycle and reduces drilling cost.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
Among the figure 1, top connection, 2, safety pin, 3, lower contact.
The specific embodiment:
In the drawings, a kind ofly drag for the whipstock safety joint, be made up of top connection 1, safety pin 2, lower contact 3, top connection 1 is connected with lower contact 3 usefulness safety pins 2, and top connection 1 top, lower contact 3 bottoms are equipped with 7
5/
8" oval button, top connection 1 top is threaded with whipstock, and lower contact 3 bottoms are connected with bearing unit with the whipstock grappling with screw thread.
Claims (1)
1. one kind can be dragged for the whipstock safety joint, form by top connection (1), safety pin (2), lower contact (3), it is characterized in that: top connection (1) is connected with safety pin (2) with lower contact (3), top connection (1) top, lower contact (3) bottom are equipped with 75/8, and " oval button; top connection (1) top is threaded with whipstock, lower contact (3) bottom is connected with bearing unit with the whipstock grappling with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202481602U CN201581843U (en) | 2009-11-17 | 2009-11-17 | Salvageable safety joint of whipstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202481602U CN201581843U (en) | 2009-11-17 | 2009-11-17 | Salvageable safety joint of whipstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201581843U true CN201581843U (en) | 2010-09-15 |
Family
ID=42723841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202481602U Expired - Fee Related CN201581843U (en) | 2009-11-17 | 2009-11-17 | Salvageable safety joint of whipstock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201581843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503706A (en) * | 2017-10-12 | 2017-12-22 | 中国海洋石油总公司 | A kind of underwater well workover assembly |
-
2009
- 2009-11-17 CN CN2009202481602U patent/CN201581843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503706A (en) * | 2017-10-12 | 2017-12-22 | 中国海洋石油总公司 | A kind of underwater well workover assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201212387Y (en) | Gas injection, gas production and brine discharge integration process pipe column for underground gas storage | |
| CN109577971A (en) | Detecting earth stress device and test method | |
| CN201865661U (en) | Hanging device of testing instrument for through tubing bailing well | |
| CN201581843U (en) | Salvageable safety joint of whipstock | |
| CN2825929Y (en) | Wellhead device for oil-water well fracturing construction | |
| CN109025902A (en) | A kind of electro-hydraulic ball-handling valve method for closing of cable type coring drilling with keep up pressure tool | |
| CN203769700U (en) | Dragging and milling canister | |
| CN202228029U (en) | Sand bailer for down-hole operation of oil field | |
| CN201103360Y (en) | Underground falling objects salvaging barrel | |
| CN201546652U (en) | Complex down-hole fishing tool | |
| CN202531150U (en) | Fishable fracturing sliding sleeve sand spraying device | |
| CN2864083Y (en) | Lifting-putting fishing tool capable of withdrawing | |
| CN2782911Y (en) | Wall hook type tail pipe hanging device for lateral well | |
| CN103362488A (en) | Sand blasting device allowing fracturing sliding sleeve to be fished | |
| CN2918719Y (en) | Combined type rock core pawl assembly | |
| CN201428408Y (en) | General overshot for oil well workover operation | |
| CN201074491Y (en) | Horizontal reinforcement card-dispelling tubular pile | |
| CN202832337U (en) | Side-open type sucker rod overshot | |
| CN103161418A (en) | Hook fishing device for oil gas well | |
| CN202064852U (en) | Multi-purpose safety joint | |
| CN206158638U (en) | Mechanical type oil pipe anchor | |
| CN2916111Y (en) | Releasing dragging device | |
| CN200940479Y (en) | Bypass seal module for side drilling horizontal well | |
| CN202280438U (en) | Cable center-spear for borehole operations | |
| CN216277696U (en) | Ultra-short radius horizontal well open hole universal guidance head |
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: 20100915 Termination date: 20131117 |