CN102966322B - A kind of pulling method of tubing plug - Google Patents
A kind of pulling method of tubing plug Download PDFInfo
- Publication number
- CN102966322B CN102966322B CN201210546634.8A CN201210546634A CN102966322B CN 102966322 B CN102966322 B CN 102966322B CN 201210546634 A CN201210546634 A CN 201210546634A CN 102966322 B CN102966322 B CN 102966322B
- Authority
- CN
- China
- Prior art keywords
- tubing plug
- fishing tool
- fishing
- pumping
- tubing
- 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.)
- Active
Links
Abstract
The present invention relates to oil gas field stimulation technology field, is one of underground work important in the complete rear trip-out with pressure of wellfracturing, a kind of particularly pulling method of tubing plug.It is characterized in that: by pumping tubing plug and fishing tool, and coordinate recoil effect to realize the salvaging of tubing plug and fishing tool, the pulling method of this tubing plug drops into tubing plug, pumping fishing tool according to pumping; Tubing plug is reclaimed in recoil and fishing tool three steps are carried out.The method changes the method for original traditional winch wire pulling tubing plug, is realized input and the salvaging of tubing plug by pumping and recoil.
Description
Technical field
The present invention relates to oil gas field stimulation technology field, is one of underground work important in the complete rear trip-out with pressure of wellfracturing, a kind of particularly pulling method of tubing plug.
Background technology
Along with the expansion of pressure break scale, jetting and the choosing of two envelope be pressed in pressure break complete after, in order to release pressure drags tubing string safely, after every lamination splits, all need open flow, about 3 ~ 6 hours of its open flow time, cause inefficiency like this, manpower cause a large amount of waste.
In order to improve operating efficiency, shorten the open flow time between fractured layer, we adopt and drag tubing string in a low voltage state, when open flow is to 15MPa, drop into tubing plug, the investing method of former tubing plug adopts winch wire to be sent into by blanking plug and is located joint, and carries out jarring, locate and realize the blocking to oil pipe being located joint, annular space is sealed by preventer.After dragging tubing string puts in place, fishing oil pipe blanking plug, former salvaging mode is also adopt winch wire to salvage blanking plug.So all winch wire be have employed to the pulling process of tubing plug, increase pulling cost, and add the complexity of process, for operation brings very big inconvenience.
We devise a kind of pulling method of tubing plug for this reason, are thrown in and the salvaging that recoils solves this problem by pumping.
Summary of the invention
The object of this invention is to provide a kind of pulling method of tubing plug, change the method for original traditional winch wire pulling tubing plug, realized input and the salvaging of tubing plug by pumping and recoil.
Technical scheme of the present invention is a kind of pulling method of tubing plug, it is characterized in that: by pumping tubing plug and fishing tool, and coordinate recoil effect to realize the salvaging of tubing plug and fishing tool, the concrete implementation step of the pulling method of this tubing plug is as follows:
Step 1, pumping drops into tubing plug; Drop into tubing plug by pumping, make tubing plug be located joint inner position and seal, the claw of tubing plug is stuck in and is located in the draw-in groove of joint;
Step 2, pumping fishing tool; Drop into fishing tool by pumping, make the bailer grab of fishing tool catch the fishing head of tubing plug, and its interpolation pole inserts tubing plug, is regained by the claw of tubing plug;
Step 3, tubing plug and fishing tool are reclaimed in recoil; Because in step 2, the claw of tubing plug is regained, and be located joint and be separated; Simultaneously the leather cup of fishing tool is subject to oil pipe internal liquid recoil active force upwards and opens, and seal with tube inner wall, when recoil strength is enough large time, fishing tool and tubing plug will be up along oil pipe, until go out oil pipe.
The arranged outside of described tubing plug has claw, and claw is stuck in and is located in the draw-in groove of joint; The inside of tubing plug is provided with one way valve, and lower end is provided with sealed packing combination, and sealed packing combination coordinates with the short circuit that is located being located joint the sealing realized in oil pipe; Tubing plug 1 upper end is provided with fishing head, coordinates with the bailer grab of fishing tool.
Described fishing tool is a kind of backpulsing tubing plug fishing tool, it is transformed on the basis of original fishing tool, and utilizing recoil effect to realize, this fishing tool at least comprises former fishing tool body, connecting rod, leather cup, positioning screw cap and fishing head; The end of connecting rod is fixedly connected with former fishing tool body by screw thread; Leather cup is sleeved on the outside of connecting rod and is fixed by positioning screw cap; Fishing head is arranged on the front end of connecting rod, is fixed by screw thread and connecting rod.
The bottom of described former fishing tool body is provided with bailer grab, and there is interpolation pole inside.
Feature of the present invention is the input and the salvaging that are realized tubing plug by pumping and recoil, has saved the cost of pulling process, and simple to operate, job safety; Provide a kind of fishing tool utilizing recoil effect, its structure is simple, and operability is high simultaneously.
Accompanying drawing explanation
Below in conjunction with embodiment, the present invention is further illustrated:
Fig. 1 is the schematic diagram that pumping drops into tubing plug;
Fig. 2 is the schematic diagram of pumping fishing tool;
Fig. 3 is the structural representation of fishing tool;
Fig. 4 is the schematic diagram of recoil fishing tool and tubing plug.
In figure: 1, tubing plug; 101, claw; 102, one way valve; 103, sealed packing combination; 104, the fishing head of tubing plug; 2, fishing tool; 201, connecting rod; 202, leather cup; 203, positioning screw cap; 204, the fishing head of fishing tool; 205, former fishing tool body; 206, bailer grab; 207, interpolation pole; 3, joint is located; 301, draw-in groove.
Detailed description of the invention
A pulling method for tubing plug, it is by pumping tubing plug 1 and fishing tool 2, and coordinates recoil effect to realize the salvaging of tubing plug 1 and fishing tool 2.
The concrete implementation step of the pulling method of this tubing plug is as follows:
Step 1, as shown in Figure 1, pumping drops into tubing plug 1; Drop into tubing plug 1 by pumping, make tubing plug 1 be located joint 3 inner position and seal, the claw 101 of tubing plug is stuck in and is located in the draw-in groove 301 of joint.
The arranged outside of tubing plug 1 has claw 101, and claw 101 is stuck in and is located in the draw-in groove 301 of joint, and claw 101 coordinates with draw-in groove 301 makes tubing plug 1 locate at tube inner wall.
The inside of tubing plug 1 is provided with one way valve 102, and what one way valve 102 can prevent from causing in pumping procedure effectively suppresses pump accident.
Lower end is provided with sealed packing combination 103, and sealed packing combination 103 coordinates with the short circuit that is located being located joint 3 sealing realized in oil pipe.
According to the mode of step 1, tubing plug 1 is dropped in oil pipe, and realize the location sealing of tubing plug 1.
Step 2, as shown in Figure 2, pumping fishing tool 2; Drop into fishing tool 2 by pumping, make the bailer grab 206 of fishing tool 2 catch the fishing head 104 of tubing plug 1, and its interpolation pole 207 inserts tubing plug 1, the claw 101 of tubing plug 1 is regained.
As shown in Figure 3, fishing tool 2 is a kind of backpulsing tubing plug fishing tools, and it is transformed on the basis of original fishing tool, and utilize recoil effect to realize.
This fishing tool at least comprises former fishing tool body 205, connecting rod 201, leather cup 202, positioning screw cap 203 and fishing head 204; The end of connecting rod 201 is fixedly connected with former fishing tool body 205 by screw thread; Leather cup 202 is sleeved on the outside of connecting rod 201 and is fixed by positioning screw cap 203; Fishing head 204 is arranged on the front end of connecting rod 201, is fixed by screw thread and connecting rod 201.
The bottom of former fishing tool body 205 is provided with bailer grab 206, there is interpolation pole 207 inside, the fishing head of tubing plug 1 is grabbed 104 and is firmly made by bailer grab, and tubing plug 1 is fixedly connected with fishing tool 2, and interpolation pole inserts the withdrawal realizing claw 101 in tubing plug 1.
Step 3, as shown in Figure 4, tubing plug and fishing tool are reclaimed in recoil; Because the claw 101 of tubing plug in step 21 is regained, and be located joint 3 and be separated, namely tubing plug 1 can freely-movable in oil pipe.
Now under the recoil effect of oily liquid in pipe, the leather cup 202 of fishing tool 2 is subject to oil pipe internal liquid recoil active force upwards and opens, seal with tube inner wall, because leather cup 202 seals, recoil strength is increased, and when recoil strength is enough large time, leather cup 202 continues to support, so fishing tool 2 and tubing plug 1 will be up along oil pipe, until go out oil pipe.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (1)
1. the pulling method of a tubing plug, it is characterized in that: by pumping tubing plug (1) and fishing tool (2), and coordinate recoil effect to realize the salvaging of tubing plug (1) and fishing tool (2), the concrete implementation step of the pulling method of this tubing plug is as follows:
Step 1, pumping drops into tubing plug (1); Drop into tubing plug (1) by pumping, make tubing plug (1) be located joint (3) inner position and seal, the claw of tubing plug be stuck in be located joint draw-in groove (301) in;
Step 2, pumping fishing tool (2); Drop into fishing tool (2) by pumping, make the bailer grab of fishing tool (2) (206) catch the fishing head (104) of tubing plug (1), and its interpolation pole inserts tubing plug (1), is regained by the claw (101) of tubing plug (1);
Step 3, tubing plug and fishing tool are reclaimed in recoil; Because the claw (101) of tubing plug in step 2 (1) is regained, and be located joint (3) and be separated; Simultaneously the leather cup (202) of fishing tool (2) is subject to oil pipe internal liquid recoil active force upwards and opens, seal with tube inner wall, when recoil strength is enough large time, fishing tool (2) and tubing plug (1) will be up along oil pipe, until go out oil pipe;
The arranged outside of described tubing plug (1) has claw (101), claw (101) be stuck in be located joint draw-in groove (301) in; The inside of tubing plug (1) is provided with one way valve (102), and lower end is provided with sealed packing combination (103), and sealed packing combination (103) coordinates with the short circuit that is located being located joint (3) sealing realized in oil pipe; Tubing plug (1) upper end is provided with fishing head (104), coordinates with the bailer grab (206) of fishing tool (2); Described fishing tool (2) is a kind of backpulsing tubing plug fishing tool, it is transformed on the basis of original fishing tool, and utilizing recoil effect to realize, this fishing tool at least comprises former fishing tool body (205), connecting rod (201), leather cup (202), positioning screw cap (203) and fishing head (204); The end of connecting rod (201) is fixedly connected with former fishing tool body (205) by screw thread; Leather cup (202) is sleeved on the outside of connecting rod (201) and is fixed by positioning screw cap (203); Fishing head (204) is arranged on the front end of connecting rod (201), is fixed by screw thread and connecting rod (201); The bottom of described former fishing tool body (205) is provided with bailer grab (206), and there is interpolation pole (207) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546634.8A CN102966322B (en) | 2012-12-17 | 2012-12-17 | A kind of pulling method of tubing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546634.8A CN102966322B (en) | 2012-12-17 | 2012-12-17 | A kind of pulling method of tubing plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966322A CN102966322A (en) | 2013-03-13 |
| CN102966322B true CN102966322B (en) | 2015-07-29 |
Family
ID=47796728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210546634.8A Active CN102966322B (en) | 2012-12-17 | 2012-12-17 | A kind of pulling method of tubing plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102966322B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089141B (en) * | 2016-07-27 | 2019-07-16 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A method of implementing back-off in net horizontal section and salvages |
| CN106593343B (en) * | 2016-12-15 | 2023-02-24 | 中国石油天然气股份有限公司 | Preset soluble sleeve blanking plug and using method thereof |
| CN111720086B (en) * | 2020-07-08 | 2024-01-19 | 中国石油天然气集团有限公司 | Impact type pipe end blanking plug and use method thereof |
| CN114439423B (en) * | 2020-11-06 | 2024-04-05 | 中国石油化工股份有限公司 | Pumping type oil pipe blocking valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708208A (en) * | 1986-06-23 | 1987-11-24 | Baker Oil Tools, Inc. | Method and apparatus for setting, unsetting, and retrieving a packer from a subterranean well |
| CN2419369Y (en) * | 1999-11-23 | 2001-02-14 | 新疆石油管理局采油工艺研究院 | Oil pipe plug |
| CN201103373Y (en) * | 2007-11-01 | 2008-08-20 | 吐哈石油勘探开发指挥部工程技术研究院 | Oil pipe plugging device for oil-gas field |
-
2012
- 2012-12-17 CN CN201210546634.8A patent/CN102966322B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102966322A (en) | 2013-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102966322B (en) | A kind of pulling method of tubing plug | |
| CN204646186U (en) | One can setting type underground check valve | |
| CN203420662U (en) | Small diameter oil pipe plug | |
| CN204609817U (en) | Multi-functional well logging salvaging instrument | |
| CN109779538B (en) | Petroleum downhole operation device | |
| CN109505528B (en) | Use method of loose sand type petroleum underground safety joint | |
| CN204175231U (en) | Back-off packer | |
| CN204041033U (en) | Rear-mounted throttle for natural gas well | |
| CN103306655B (en) | A kind of dragging staged fracturing method with pressure | |
| CN203188964U (en) | Blanking plug for sand prevention | |
| CN103206187A (en) | Blanking plug for sand prevention | |
| CN204283825U (en) | A kind of novel mechanical grappling sucker rod pump | |
| CN203847359U (en) | Oil well pump and oil extraction system of oil-submersible linear motor well | |
| CN202560154U (en) | Venting cable-penetrated packer | |
| CN202228039U (en) | Ground hydraulic-control cable packer | |
| CN203570265U (en) | Slide sleeve oil extracting and draining device | |
| CN202745771U (en) | Hydraulic mechanical anchor for continuous pipe | |
| CN202132651U (en) | Oil well pipeline quick leak-mending device | |
| CN204754861U (en) | Liquid accuse packer | |
| CN201778718U (en) | Anti-ejection locking fishing spear | |
| CN104747113A (en) | Packer in recycling oil well air drill | |
| CN204827365U (en) | Multi -functional bottom ball seat | |
| CN203669807U (en) | Oil production sand-control unplugging device | |
| CN208461436U (en) | Underground is given up docking adapter | |
| CN203239269U (en) | Self-sealing blowout preventer for oil well head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |