CN104453736A - Intelligent well tubular column quick connector - Google Patents
Intelligent well tubular column quick connector Download PDFInfo
- Publication number
- CN104453736A CN104453736A CN201410588829.8A CN201410588829A CN104453736A CN 104453736 A CN104453736 A CN 104453736A CN 201410588829 A CN201410588829 A CN 201410588829A CN 104453736 A CN104453736 A CN 104453736A
- Authority
- CN
- China
- Prior art keywords
- connector
- top connection
- lower contact
- tubing string
- well 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
An intelligent well tubular column quick connector comprises a lifting sub, an upper connector, an outer pipe, a limiting connector and a lower connector. The upper end of the upper connector is connected with the lifting sub. The lower end of the upper connector and the lower connector are connected together through meshing teeth. The outer portion of the upper connector is connected with the outer pipe. The outer portion of the lower connector is provided with the limiting connector. The upper portion of the outer pipe is connected with the upper connector. The lower portion of the outer pipe is connected with the limiting connector. Abutting connecting speed is high, only the connector needs to be rotated slightly, when the two meshing teeth are at an opposite vertex limiting position, connectors only needs to be rotated by 15 degrees, the two connectors can be well connected, the phenomenon that a control line torsion range is very large can be avoided, the meshing teeth are evenly and densely distributed on the connector, the advantages that assembling and disassembling are convenient and quick, and time and labor are saved are achieved, and the intelligent well tubular column quick connector is widely used in an oil exploitation working technology tool.
Description
Technical field
The present invention relates to oil and gas wells in oil fields completion and mining tubular column, particularly a kind of smart well tubing string snap joint.
Background technology
Common Intelligent Well Completion, generally by control line realize in the face of the manufacture control of downhole oil gas-bearing formation, multiplex regular screw threads are rotatably connected, this connected mode is that Intelligent Well Completion contribute to strength, but it also exists following shortcoming or deficiency simultaneously: 1. intelligent well completion pipe string is gone into the well in process, regular screw threads are rotatably connected and easily cause control line distortion, fracture; 2. be difficult to fix vertical with tubing string, connect difficulty; 3. regular screw threads are rotatably connected needs rotation amplitude large, wastes time and energy, inconvenient operation; What 4. regular screw threads connection needs rotated easily causes the inefficacy that is threaded often.
Summary of the invention
The object of this invention is to provide the snap joint of a kind of smart well tubing string, adopt the concavo-convex engaging tooth fast joint structure of triangle, make control line as far as possible on a vertical line, make connection more convenient, effectively overcome or avoid the shortcoming that exists in described prior art or deficiency.
Smart well tubing string of the present invention snap joint, comprises lifting sub, top connection, outer tube, positioning joint and lower contact.The upper end of described top connection is connected with lifting sub, bottom and lower contact are linked together by engaging tooth, top connection be externally connected to outer tube, the outside of lower contact is provided with positioning joint, the top of outer tube is connected with top connection, and bottom is connected with positioning joint.
Wherein, the engaging tooth of the engagement place of described top connection and lower contact is triangular fovea double wedge, is evenly distributed on the engagement place of top connection and lower contact every 14 ° of-16 ° of degree.The angle R of described each engaging tooth is 29 °-31 ° degree.The radius of described engaging tooth front end semi arch is 1.9mm-2.1mm.The upper and lower of described top connection and lower contact engaging tooth is provided with sealing ring.The lower end of described lower contact is provided with external screw thread.The described junction in outer tube and top connection is provided with pin.The described junction at outer tube and positioning joint is provided with pin.
The present invention compared with prior art tool has the following advantages:
1, speed of docking is fast, when two instrument docking, only need rotate a lower contact a little and just can realize the connection of control line and there will not be the situation that control line torsional amplitude is very large;
2, because engaging tooth is even dense distribution on joint, therefore, on unload convenient and swift, only need during connection to rotate the connection that very little angle just can realize control line, and can not reverse by a relatively large margin, when two teeth are in the extreme position to top, joint only need rotate 15 degree and just two joints can be connected.
3, easy to connect, fast, time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is a kind of example structure schematic diagram of the present invention;
Fig. 2 is for by the A place deployed configuration schematic diagram shown in Fig. 1.
Detailed description of the invention
Consult Fig. 1-Fig. 2, the snap joint of a kind of smart well tubing string, comprise lifting sub 1, top connection 2, outer tube 4, positioning joint 5 and lower contact 6.The upper end of top connection 2 is connected with lifting sub 1, bottom and lower contact 6 are linked together by engaging tooth, top connection 2 be externally connected to outer tube 4, the outside of lower contact 6 is provided with positioning joint 5, the top of outer tube 4 is connected with top connection 2, and bottom is connected with positioning joint 5.
Top connection 2 is triangular fovea double wedge with the engaging tooth of the engagement place of lower contact 6, every 14 °-16 ° degree, is expressed as 15 ° of degree in figure, is evenly distributed on the engagement place of top connection 2 and lower contact 6.The angle R of each engaging tooth is 29 °-31 ° degree, is expressed as 30 ° of degree in figure.The radius of engaging tooth front end semi arch is be expressed as 2mm in 1.9mm-2.1mm, figure.The upper and lower of top connection 2 and lower contact 6 engaging tooth is provided with sealing ring 7.The lower end of lower contact 6 is provided with external screw thread.At outer tube 4 and the junction of top connection 2, pin 3 is installed.At outer tube 4 and the junction of positioning joint 5, pin 3 is installed.
Claims (8)
1. smart well tubing string snap joint, comprise lifting sub, top connection, outer tube, positioning joint and lower contact, it is characterized in that the upper end of described top connection is connected with lifting sub, bottom and lower contact are linked together by engaging tooth, top connection be externally connected to outer tube, the outside of lower contact is provided with positioning joint, and the top of outer tube is connected with top connection, and bottom is connected with positioning joint.
2. smart well tubing string according to claim 1 snap joint, is characterized in that the engaging tooth of the engagement place of described top connection and lower contact is triangular fovea double wedge, is evenly distributed on the engagement place of top connection and lower contact every 14 ° of-16 ° of degree.
3. smart well tubing string according to claim 1 and 2 snap joint, is characterized in that the angle R of described each engaging tooth is 29 °-31 ° degree.
4. smart well tubing string according to claim 1 and 2 snap joint, is characterized in that the radius of described engaging tooth front end semi arch is 1.9mm-2.1mm.
5. smart well tubing string according to claim 1 snap joint, is characterized in that the upper and lower of described top connection and lower contact engaging tooth is provided with sealing ring.
6. smart well tubing string snap joint according to claim 1 or 5, is characterized in that the lower end of described lower contact is provided with external screw thread.
7. smart well tubing string according to claim 1 snap joint, is provided with pin in the junction of outer tube and top connection described in it is characterized in that.
8. the smart well tubing string snap joint according to claim 1 or 7, is provided with pin in the junction of outer tube and positioning joint described in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588829.8A CN104453736A (en) | 2014-10-29 | 2014-10-29 | Intelligent well tubular column quick connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588829.8A CN104453736A (en) | 2014-10-29 | 2014-10-29 | Intelligent well tubular column quick connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104453736A true CN104453736A (en) | 2015-03-25 |
Family
ID=52900413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410588829.8A Pending CN104453736A (en) | 2014-10-29 | 2014-10-29 | Intelligent well tubular column quick connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104453736A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3812211A1 (en) * | 1988-04-13 | 1989-11-02 | Preussag Ag Bauwesen | Screw-connections for riser pipes for pumps in wells |
| CN2844394Y (en) * | 2005-11-10 | 2006-12-06 | 新疆石油管理局钻井工艺研究院 | A kind of completion mechanical type swivel joint |
| CN1918360A (en) * | 2003-12-02 | 2007-02-21 | 瓦尔科I/P股份有限公司 | Coiled tubing connector and method of manufacture |
| CN203081329U (en) * | 2012-12-20 | 2013-07-24 | 辽宁石油机械制造有限公司 | Sawtooth-shaped safety connector |
| CN103953292A (en) * | 2014-03-18 | 2014-07-30 | 齐迎春 | Fastening gapless drill rod contactor |
| CN204283236U (en) * | 2014-10-29 | 2015-04-22 | 东营市福利德石油科技开发有限责任公司 | The snap joint of smart well tubing string |
-
2014
- 2014-10-29 CN CN201410588829.8A patent/CN104453736A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3812211A1 (en) * | 1988-04-13 | 1989-11-02 | Preussag Ag Bauwesen | Screw-connections for riser pipes for pumps in wells |
| CN1918360A (en) * | 2003-12-02 | 2007-02-21 | 瓦尔科I/P股份有限公司 | Coiled tubing connector and method of manufacture |
| CN2844394Y (en) * | 2005-11-10 | 2006-12-06 | 新疆石油管理局钻井工艺研究院 | A kind of completion mechanical type swivel joint |
| CN203081329U (en) * | 2012-12-20 | 2013-07-24 | 辽宁石油机械制造有限公司 | Sawtooth-shaped safety connector |
| CN103953292A (en) * | 2014-03-18 | 2014-07-30 | 齐迎春 | Fastening gapless drill rod contactor |
| CN204283236U (en) * | 2014-10-29 | 2015-04-22 | 东营市福利德石油科技开发有限责任公司 | The snap joint of smart well tubing string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |