CN105089577B - Easy fishing sand-proof tubing string - Google Patents
Easy fishing sand-proof tubing string Download PDFInfo
- Publication number
- CN105089577B CN105089577B CN201410193315.2A CN201410193315A CN105089577B CN 105089577 B CN105089577 B CN 105089577B CN 201410193315 A CN201410193315 A CN 201410193315A CN 105089577 B CN105089577 B CN 105089577B
- Authority
- CN
- China
- Prior art keywords
- sand
- central tube
- outer tube
- block outer
- sand block
- 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
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- Earth Drilling (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses easy fishing sand-proof tubing strings, including central tube, sand block outer tube, through-hole is opened up in the central tube circumferential wall, the sand block outer tube empty set is on the outside of central tube and corresponds to the through hole, the positioning ring of itself restricted axial movement is arranged in sand block outer tube both ends, and sand block outer tube can relatively rotate under the positioning of positioning ring with central tube, form annular space between the central tube and sand block outer tube.The present invention installs one or more easy fishing joints additional according to the needs of oil/gas well sand control, form the sand control pipe of one, when sand control failure needs fishing sand-proof tubing string, tripping in fishing tool rotation center pipe, since back-up sand and reservoir sand mostly fill on tubing string sand block layer or outer tube, it is easier so central tube rotates, at this time easy fishing joint automatic unbuckling, such section, one, which save land, is easy to salvage all sand control pipes.
Description
Technical field
Well sand control pipe is stayed used in the mechanical sand control used the present invention relates to oil and gas exploitation well, specifically
Easy fishing sand-proof tubing string.
Background technique
The external shelves layer of sand of sand control pipe is integral with central tube at present, needs fishing sand-proof tubing string after sand control failure
When, since back-up sand and reservoir sand are full of pit shaft, so that salvaging above mentions sand control pipe and rotation sand control pipe is all highly difficult.Exceed
Light maintenance workover derrick load can only wash one section using set, salvage one section processing mode or upper heavy repair task.Both operation is increased
Period, and increase operating cost.
Summary of the invention
The purpose of the present invention is to provide easy fishing sand-proof tubing strings, and later period salvaging processing can be made to be easier, overhaul is avoided to make
Industry.
In order to achieve the above objectives, present invention employs following technical solution, easy fishing sand-proof tubing string, including central tube,
Sand block outer tube, through-hole is opened up in the central tube circumferential wall, and the sand block outer tube empty set is on the outside of central tube and corresponding described logical
At hole, the positioning ring of itself restricted axial movement is arranged in sand block outer tube both ends, and sand block outer tube is determined in positioning ring
Position is lower to be relatively rotated with central tube, form annular space between the central tube and sand block outer tube.
The sand block outer tube end connects positioning ring by weld-ring, and the positioning ring and central tube are integrally welded, described
Sealing element is set between weld-ring and central tube, and sand block outer tube both ends are protruded into inside weld-ring and integral from interior welds.
The central tube lower end connects top connection, the top connection lower end external connection lower contact.
It is provided with and cuts off and sealing element between the top connection and lower contact.
Positioning pin is provided on the lower contact outer wall.
Compared to the prior art, the invention has the following advantages:
One or more easy fishing joints are installed additional according to the needs of oil/gas well sand control, integrated sand control pipe are formed, when anti-
When sand failure needs fishing sand-proof tubing string, tripping in fishing tool rotation center pipe, since back-up sand and reservoir sand are mostly filled
On tubing string sand block layer or outer tube, it is easier so central tube rotates, at this time easy fishing joint automatic unbuckling, such section, one
It saves land and is easy to salvage all sand control pipes.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of easy fishing sand-proof tubing string of the invention.
In figure: 1- central tube；The end 2- positioning ring；3- weld-ring；4- sand block outer tube；5- sealing element；6- connector positioning ring；7-
Top connection；8- is cut off；9- sealing element；10- lower contact；11- positioning pin.
Specific embodiment
Detailed description for the present invention and technology contents, cooperation Detailed description of the invention it is as follows, however attached drawing only provides reference with
Purposes of discussion is not intended to limit the present invention.
As shown in Figure 1, easily fishing sand-proof tubing string, including central tube 1, sand block outer tube 4, opened up in the central tube circumferential wall
Through-hole, the sand block outer tube empty set is on the outside of central tube and the corresponding through hole, the setting of sand block outer tube both ends are limited
Make the positioning ring of itself axial movement, end positioning ring 2 as shown in the figure, for the intensity for increasing sand block outer tube, a sand-proof pipe
Settable multistage sand block outer tube is gone up, the positioning ring being connected between two sections, which can be combined into one, becomes connector positioning ring 6, connects simultaneously
Two weld-rings of docking are connect, sand block outer tube can relatively rotate under the positioning of positioning ring with central tube, the central tube and sand block
Annular space is formed between outer tube.The sand block outer tube end connects positioning ring by weld-ring 3, and the positioning ring is welded into central tube
One, is arranged sealing element 5 between the weld-ring and central tube, sand block outer tube both ends are protruded into inside weld-ring and made from inside
It is integrally welded.
The central tube lower end connects top connection 7, the top connection lower end external connection lower contact 10.The top connection and
It is provided between lower contact and cuts off 8 and sealing element 9.Positioning pin 11 is provided on the lower contact outer wall.
Be sequentially connected on the central tube positioning ring, weld-ring, sand block layer or outer tube and easy fishing joint top connection,
It cuts off, lower contact, positioning pin.On central tube, both ends limit its axial displacement by positioning ring and will for sand block layer or outer tube empty set
Positioning ring is welded on central tube, and sand block layer or outer tube can be relatively rotated with central tube.Two pieces of boss are arranged at top connection lower part, under
There are two slots and positioning pin in connector.Lower contact reversion connection is inserted into top connection, and upper and lower connector cuts off fixation, cuts off not by axis
Xiang Li.Easy fishing sand-proof tubing string installs one or more easy fishing joints additional according to sand proof well demand, forms integrated sand control pipe.
The foregoing is merely presently preferred embodiments of the present invention, non-to limit the scope of the patents of the invention, other are with this
The equivalence changes of the patent spirit of invention should all belong to the scope of the patents of the invention.
Claims (1)
1. easy fishing sand-proof tubing string, which is characterized in that including central tube, sand block outer tube, opened up in the central tube circumferential wall logical
Hole, the sand block outer tube empty set is on the outside of central tube and the corresponding through hole, the setting of sand block outer tube both ends are restricted
Multistage sand block outer tube is arranged on a piece sand-proof pipe for the intensity for increasing sand block outer tube in the positioning ring of itself axial movement, two sections it
Between the positioning ring that is connected be combined into one two weld-rings for becoming connector positioning ring, while connecting docking, sand block outer tube is positioning
It can be relatively rotated with central tube under the positioning of ring, form annular space between the central tube and sand block outer tube；The sand block outer tunnel end
Portion connects positioning ring by weld-ring, and the positioning ring and central tube are integrally welded；It is arranged between the weld-ring and central tube close
Sealing, sand block outer tube both ends are protruded into inside weld-ring and are allowed to integrally welded from inside；
The central tube lower end connects top connection, the top connection lower end external connection lower contact；The top connection and lower contact
Between be provided with and cut off and sealing element；Positioning pin is provided on the lower contact outer wall；
Be sequentially connected on the central tube positioning ring, weld-ring, sand block outer tube and the top connection of easy fishing joint, cut off, under
Connector, positioning pin；On central tube, both ends are limited its axial displacement by positioning ring and are welded on positioning ring sand block outer tube empty set
On central tube, sand block outer tube can be relatively rotated with central tube；Two pieces of boss are arranged at top connection lower part, have two slots in lower contact and determine
Position pin；Lower contact reversion connection is inserted into top connection, and upper and lower connector cuts off fixation, cuts off not by axial force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410193315.2A CN105089577B (en) | 2014-05-09 | 2014-05-09 | Easy fishing sand-proof tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410193315.2A CN105089577B (en) | 2014-05-09 | 2014-05-09 | Easy fishing sand-proof tubing string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105089577A CN105089577A (en) | 2015-11-25 |
| CN105089577B true CN105089577B (en) | 2019-10-25 |
Family
ID=54570810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410193315.2A Expired - Fee Related CN105089577B (en) | 2014-05-09 | 2014-05-09 | Easy fishing sand-proof tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105089577B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505528B (en) * | 2017-09-15 | 2020-06-02 | 山东华冠能源技术有限公司 | Use method of loose sand type petroleum underground safety joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074505A (en) * | 1991-12-27 | 1993-07-21 | 株式会社永冈 | Make the method for selective isolation screen |
| US5938925A (en) * | 1997-01-23 | 1999-08-17 | Halliburton Energy Services, Inc. | Progressive gap sand control screen and process for manufacturing the same |
| CN2729308Y (en) * | 2004-06-15 | 2005-09-28 | 李玲 | Anti-sand screen pipe for horizontal well |
| CN102071914A (en) * | 2011-01-10 | 2011-05-25 | 中国石油大学(华东) | Novel sand control screen pipe with adjustable on-site sand stop precision |
| CN202064912U (en) * | 2011-04-02 | 2011-12-07 | 中国石油化工股份有限公司 | Uniformly-rotating blockage removing tool for horizontal well |
| CN203835349U (en) * | 2014-05-09 | 2014-09-17 | 中国石油化工股份有限公司 | Sand prevention pipe column easy to fish |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7866405B2 (en) * | 2008-07-25 | 2011-01-11 | Halliburton Energy Services, Inc. | Securement of lines to well sand control screens |
-
2014
- 2014-05-09 CN CN201410193315.2A patent/CN105089577B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074505A (en) * | 1991-12-27 | 1993-07-21 | 株式会社永冈 | Make the method for selective isolation screen |
| US5938925A (en) * | 1997-01-23 | 1999-08-17 | Halliburton Energy Services, Inc. | Progressive gap sand control screen and process for manufacturing the same |
| CN2729308Y (en) * | 2004-06-15 | 2005-09-28 | 李玲 | Anti-sand screen pipe for horizontal well |
| CN102071914A (en) * | 2011-01-10 | 2011-05-25 | 中国石油大学(华东) | Novel sand control screen pipe with adjustable on-site sand stop precision |
| CN202064912U (en) * | 2011-04-02 | 2011-12-07 | 中国石油化工股份有限公司 | Uniformly-rotating blockage removing tool for horizontal well |
| CN203835349U (en) * | 2014-05-09 | 2014-09-17 | 中国石油化工股份有限公司 | Sand prevention pipe column easy to fish |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105089577A (en) | 2015-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 Termination date: 20200509 |