CN103362488B - Sand blasting device allowing fracturing sliding sleeve to be fished - Google Patents
Sand blasting device allowing fracturing sliding sleeve to be fished Download PDFInfo
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- CN103362488B CN103362488B CN201210094371.1A CN201210094371A CN103362488B CN 103362488 B CN103362488 B CN 103362488B CN 201210094371 A CN201210094371 A CN 201210094371A CN 103362488 B CN103362488 B CN 103362488B
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- sliding sleeve
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Abstract
Disclosed is a sand blasting device allowing a fracturing sliding sleeve to be fished. The sand blasting device aims at overcoming defects that the liquid flow is unsmooth and construction operations for oil well sand production cannot be performed through a conventional sand flushing technology caused by retention of injected balls and sliding grooves in pipe strings after the fracturing construction operation. The device comprises a body, a sliding sleeve and a ball. The upper and lower ends of the body are provided with threads connected with a completion pipe string and a matched tool, an inner hole of the body is a big-end-up stepped hole, a straight hole longer than the sliding sleeve is formed in the middle, a radial through hole is formed in the upper end of the straight hole, and an inner boss of the lower end of the body is a limit face. The sliding sleeve is disposed in the straight hole in the middle of the body, the sliding sleeve and the body are radially fixed through a shear pin, and the radial through hole of the body is closed by the upper end of the sliding sleeve. An inner boss of the lower end of the sliding sleeve is a ball seat. The device has the advantages that the device is simple and reasonable in structure, easy to operate and safe and reliable; the inner sliding sleeve and the ball in a down-hole pipe string can be taken out through a conventional fishing technology, the inner drift diameter of a down-hole tool is guaranteed, convenience is provided for later construction operations, the operation cycle is shortened, and operation costs are reduced.
Description
Technical field
The present invention relates to a kind of oil and gas development underground fracture sliding sleeve, especially relate to one kind and can fish for fracturing sliding bush sandblasting dress
Put.
Background technology
In order to improve In Oil Field Exploration And Development comprehensive benefit, it is important channel using horizontal well technology, especially for low hole
The horizontal well of low permeability reservoirs and yield do not reach the complex structural well that economic development requires, and will be arranged using fracturing reform volume increase
Apply, fractured horizontal well reforming technology is complicated, downhole tool performance requirement is high.At present, water of oil-gas field horizontal well multistage fracturing reform one
As technology and hanging packer, sliding sleeve, open hole packer and kit etc. are specially beaten using oil reservoir, realize multistage fracturing technique,
Or well cementation is carried out using well cementation sliding sleeve and kit complete multistage fracturing technique.Beaten using building the pressure in well head pitching technology tubing string
Drive a well lower corresponding sliding sleeve successively pressing crack construction, and the ball that construction puts in well after terminating can not smoothly return and eject.Due to put into
Ball forms stop in pit shaft, has a strong impact on oil well output, once sand production, cannot be applied using conventional sand washing process
Work industry is it is necessary to be excluded the sliding sleeve in well and ball except operation by boring, its complex process, the cycle is long, operating cost is high.
Content of the invention
In order to overcome the pitching existing after existing pressing crack construction operation, sliding sleeve to be detained in tubing string, lead in tubing string liquor stream not
Freely, sand production cannot carry out the deficiency of construction operation using conventional sand washing process, and the present invention provides one kind can fish for pressure break and slides
Set sand blasting unit.
The technical solution adopted for the present invention to solve the technical problems is：Fracturing sliding bush sand blasting unit can be fished for and include this
Body, sliding sleeve, ball, the upper and lower ends of body have the screw thread being connected with completion tubular column, and body endoporus is up big and down small shoulder hole,
Middle part is more than the straight hole of sliding sleeve 3 for length, and there is radial direction through hole straight hole upper end, and body bottom inner convex platform is confined planes；Sliding sleeve
In straight hole in the middle part of body, shear pin is radially fixed with body by sliding sleeve, and the radial direction through hole of body is closed by sliding sleeve upper end；
The inner convex platform of sliding sleeve bottom is ball seat.Ball is put in sliding sleeve, builds the pressure and shear pin is cut off, sliding sleeve is displaced downwardly to limit along body endoporus
During plane, the upper surface of sliding sleeve is less than the radial direction through hole of body, and radial direction through hole is open mode.Fixed by shear pin for more than 2
Body and sliding sleeve are connected in turn on completion tubular column, and sliding sleeve internal diameter from top to bottom is sequentially reduced.
The invention has the beneficial effects as follows, simple and reasonable it is easy to operation, safe and reliable, can using conventional fishing process
Inner sliding sleeve in down-hole string and ball are taken out, shortens duty cycle, reduce operating cost, be construction in later period operation provider
Just.
Brief description
Fig. 1 can fish for fracturing sliding bush sand blasting unit structural representation for the present invention；
Fig. 2 can fish for structural representation during fracturing sliding bush sand blasting unit fracturing work for the present invention；
Fig. 3 can fish for the structural representation after fracturing sliding bush sand blasting unit latus rectum for the present invention.
In figure：1. body, 2. radial direction through hole, 3. sliding sleeve, 4. shear pin, 5. ball seat, 6. confined planes, 7. ball.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.But, those skilled in the art should know
, the invention is not restricted to listed specific embodiment, as long as meeting the spirit of the present invention, all should be included in the present invention
Protection domain in.
Referring to accompanying drawing 1.The present invention can fish for fracturing sliding bush sand blasting unit and include body 1, sliding sleeve 3, ball 7, body 1 upper and lower
There is the screw thread being connected with completion tubular column at two ends, and the upper end of usual body 1 is female thread, lower end is external screw thread.
The endoporus of body 1 is up big and down small shoulder hole, and middle part is more than the straight hole of sliding sleeve 3, body 1 straight hole upper end for length
There is the circumference uniform distribution of the radial direction through hole 2 of radial direction through hole more than 2,2 along body 1.The inner convex platform of body 1 bottom is confined planes 6.
Sliding sleeve 3 is located in the straight hole at body 1 middle part, and shear pin 4 will be radially fixed with body 1 for sliding sleeve 3, and sliding sleeve 3 upper end will
The radial direction through hole 2 of body 1 is closed；The inner convex platform of sliding sleeve 3 bottom is ball seat 5.
Referring to accompanying drawing 2.Ball 7 is put in sliding sleeve 3, builds the pressure in tubing string and shear pin 4 is cut off, sliding sleeve 3 moves down along body endoporus
During to confined planes 6, the upper surface of sliding sleeve 3 is less than the radial direction through hole 2 of body, and radial direction through hole 2 is open mode.
According to the needs of staged fracturing operation, the body 1 that more than 2 are fixed by shear pin 4 can be sequentially connected with sliding sleeve 3
On underground work pipe column, sliding sleeve 3 internal diameter from top to bottom is sequentially reduced, and by putting into ball 7 successively from the bottom to top, opens difference
The pressure break radial direction through hole 2 of section, a set of tubing string can complete multistage pressure break, directly go into operation after construction, when effectively preventing fracturing work
Because maloperation leads to close sand jet outlet.Meet when shaking out after operation, after common process sand washing, under enter the fishing tool matching
Drag for the inwall of sliding sleeve 3, sliding sleeve 3 and ball 7 pulled out the interior latus rectum it is ensured that downhole tool, be construction in later period operation provides convenient,
Shorten duty cycle, reduce operating cost.
Fracturing sliding bush sand blasting unit operation process can be fished for using the present invention as follows：
First, fracturing sliding bush sand blasting unit can be fished for according to technological design to be connected with completion tubular column and kit, under
Enter in pit shaft, implement completion practice.When carrying out pressing crack construction, put into ball 7 after entering ball seat 5, build the pressure in tubing string, when pressure reaches
When design load cut off by shear pin 4, shear pin 4 is cut off, and sliding sleeve 3 slides down on confined planes 6 along body 1, opens radial direction through hole 2, that is,
Pressing crack construction can be implemented.Connect the sliding sleeve 3 of equivalent amount according to actual pressure break hop count, repeatedly pitching can carry out pressing crack construction, such as
Shown in accompanying drawing 2.
When ball 7 affects other operations in tubing string, salvage standard by oil-water well and carry out fishing.Under enter beating of coupling
Fishing combined tool drags for the inwall of sliding sleeve 3, can take out the sliding sleeve 3 in down-hole string and ball 7, realize passage 2 normally open, you can complete
Well goes into operation (referring to accompanying drawing 3).
It should be noted that above-described embodiment is exemplary rather than limiting the present invention, those skilled in the art are possible to design very
Many alternate embodiments are without deviating from the right of this patent.
Claims (3)
1. one kind can fish for fracturing sliding bush sand blasting unit, and including body, sliding sleeve, ball, the upper and lower ends of body have and completion tubular column
The screw thread being connected, is characterized in that：Described body (1) endoporus is up big and down small shoulder hole, and middle part is more than sliding sleeve (3) for length
Straight hole, there is radial direction through hole (2) straight hole upper end, and body (1) bottom inner convex platform is confined planes (6)；Described sliding sleeve (3) is located at
In straight hole in the middle part of body (1), shear pin (4) will be radially fixed with body (1) for sliding sleeve (3), and sliding sleeve (3) upper end is by body (1)
Radial direction through hole (2) close；The inner convex platform of described sliding sleeve (3) bottom is ball seat (5).
2. fracturing sliding bush sand blasting unit can be fished for according to claim 1, it is characterized in that：Ball (7) is put in sliding sleeve (3),
Build the pressure and described shear pin (4) cut off, sliding sleeve (3) along body endoporus be displaced downwardly to confined planes (6) when, the upper surface of sliding sleeve (3) is less than
The radial direction through hole (2) of body, radial direction through hole (2) is open mode.
3. fracturing sliding bush sand blasting unit can be fished for according to claim 2, it is characterized in that：More than 2 solid by described shear pin (4)
Fixed body (1) and sliding sleeve (3) are connected in turn on completion tubular column, and sliding sleeve (3) internal diameter from top to bottom is sequentially reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210094371.1A CN103362488B (en) | 2012-03-31 | 2012-03-31 | Sand blasting device allowing fracturing sliding sleeve to be fished |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210094371.1A CN103362488B (en) | 2012-03-31 | 2012-03-31 | Sand blasting device allowing fracturing sliding sleeve to be fished |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103362488A CN103362488A (en) | 2013-10-23 |
| CN103362488B true CN103362488B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210094371.1A Active CN103362488B (en) | 2012-03-31 | 2012-03-31 | Sand blasting device allowing fracturing sliding sleeve to be fished |
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| Country | Link |
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| CN (1) | CN103362488B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805424A (en) * | 2019-10-31 | 2020-02-18 | 杨敏 | Sliding sleeve type sand blaster and use method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727796B (en) * | 2015-03-02 | 2017-08-29 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | A kind of horizontal well can coring sliding sleeve multistage fracturing completion tubular column construction method |
| CN104653162B (en) * | 2015-03-02 | 2017-08-29 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | One kind can coring pitching fracturing sliding bush |
| CN112682017B (en) * | 2019-10-18 | 2022-07-01 | 中国石油化工股份有限公司 | Underground fracturing tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144683Y (en) * | 2008-01-16 | 2008-11-05 | 中国石油化工股份有限公司西南油气分公司工程技术研究院 | Fracturing sliding bush sandblast |
| CN201386539Y (en) * | 2008-11-20 | 2010-01-20 | 吐哈石油勘探开发指挥部工程技术研究院 | Fracture used high-pressure sand blast sliding sleeve |
| CN101638982A (en) * | 2009-08-20 | 2010-02-03 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Multi-formation fracturing device and process of release tubular column |
| CN102383760A (en) * | 2011-07-22 | 2012-03-21 | 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 | Design method of sliding sleeve switch |
| CN202531150U (en) * | 2012-03-31 | 2012-11-14 | 大港油田集团有限责任公司 | Fishable fracturing sliding sleeve sand spraying device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7926571B2 (en) * | 2005-03-15 | 2011-04-19 | Raymond A. Hofman | Cemented open hole selective fracing system |
| US8245788B2 (en) * | 2009-11-06 | 2012-08-21 | Weatherford/Lamb, Inc. | Cluster opening sleeves for wellbore treatment and method of use |
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2012
- 2012-03-31 CN CN201210094371.1A patent/CN103362488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144683Y (en) * | 2008-01-16 | 2008-11-05 | 中国石油化工股份有限公司西南油气分公司工程技术研究院 | Fracturing sliding bush sandblast |
| CN201386539Y (en) * | 2008-11-20 | 2010-01-20 | 吐哈石油勘探开发指挥部工程技术研究院 | Fracture used high-pressure sand blast sliding sleeve |
| CN101638982A (en) * | 2009-08-20 | 2010-02-03 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Multi-formation fracturing device and process of release tubular column |
| CN102383760A (en) * | 2011-07-22 | 2012-03-21 | 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 | Design method of sliding sleeve switch |
| CN202531150U (en) * | 2012-03-31 | 2012-11-14 | 大港油田集团有限责任公司 | Fishable fracturing sliding sleeve sand spraying device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805424A (en) * | 2019-10-31 | 2020-02-18 | 杨敏 | Sliding sleeve type sand blaster and use method thereof |
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| Publication number | Publication date |
|---|---|
| CN103362488A (en) | 2013-10-23 |
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Address after: 300280 No. three, Dagang Oilfield, Grand Port, Tianjin, Grand Port Applicant after: Dagang Oil Field Group Co., Ltd. Applicant after: DRILLING TECHNOLOGY DEVELOPMENT COMPANY, TIANJIN DAGANG OILFIELD RESEARCH INSTITUTE OF PETROLEUM ENGINEERING Address before: 300280 No. three, Dagang Oilfield, Grand Port, Tianjin, Grand Port Applicant before: Dagang Oil Field Group Co., Ltd. Applicant before: Tianjin Dagang Oilfield Drilling Technology Development Co., Ltd. |
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Address after: 300280 Binhai New Area, Dagang, Tianjin, No. three Co-patentee after: Tianjin Dagang Oil Field Petroleum Engineering Research Institute Drilling Technology Development Co Ltd Patentee after: Dagang Oil Field Group Co., Ltd. Address before: 300280 No. three, Dagang Oilfield, Grand Port, Tianjin, Grand Port Co-patentee before: DRILLING TECHNOLOGY DEVELOPMENT COMPANY, TIANJIN DAGANG OILFIELD RESEARCH INSTITUTE OF PETROLEUM ENGINEERING Patentee before: Dagang Oil Field Group Co., Ltd. |
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Effective date of registration: 20201124 Address after: 300000 No. three, Dagang Oilfield, Binhai New Area, Tianjin Patentee after: DAGANG OILFIELD GROUP Co.,Ltd. Patentee after: Tianjin Dagang Oilfield Petroleum Engineering Research Institute Drilling Technology Development Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 300280 Dagang three, Binhai New Area, Tianjin Patentee before: DAGANG OILFIELD GROUP Co.,Ltd. Patentee before: Tianjin Dagang Oilfield Petroleum Engineering Research Institute Drilling Technology Development Co.,Ltd. |