CN203050545U - Anti-torque coiled tubing annular pressure connector - Google Patents
Anti-torque coiled tubing annular pressure connector Download PDFInfo
- Publication number
- CN203050545U CN203050545U CN 201220654132 CN201220654132U CN203050545U CN 203050545 U CN203050545 U CN 203050545U CN 201220654132 CN201220654132 CN 201220654132 CN 201220654132 U CN201220654132 U CN 201220654132U CN 203050545 U CN203050545 U CN 203050545U
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- China
- Prior art keywords
- coiled tubing
- ring
- seal groove
- connector
- groove
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- Expired - Lifetime
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Abstract
The utility model discloses an anti-torque coiled tubing annular pressure connector, which relates to the technical field of underground construction in petroleum and natural gas industries and comprises a connecting head, wherein one end of the connecting head is provided with sealing grooves, annular pressure grooves and torque transmission grooves, the sealing grooves and the annular pressure grooves are formed in the radial direction of the connecting head and are in sequential arrangement, and the torque transmission grooves are formed in the axial direction of the connecting head and penetrate through at least one sealing groove and at least one annular pressure groove. The anti-torque coiled tubing annular pressure connector has the advantages that the structure is simple, the conception is ingenious, the connection is firm, and the connection intensity can completely meet the application requirements of the process for pulling the under-pressure coiled tubing to be used as a velocity pipe column.
Description
Technical field
The utility model relates to industrial gas oil down-hole technical field of construction, exactly relates to a kind of band that is applicable to and has pressed the antitorque formula coiled tubing ring of coiled tubing speed tubing string technology to press connector.
Background technology
It is the important means that improves the coiled tubing construction technology, improves efficiency of construction that antitorque formula coiled tubing ring is pressed connector.It is the subsequent step that coiled tubing is done the speed tubing string that band has pressed coiled tubing speed tubing string technology to use.In regular hour after coiled tubing is done the speed tubing string, the coiled tubing tensile strength in well satisfies under the precondition that trips out, if because the needs of technology require the coiled tubing as the speed tubing string in the well is tripped out, carry out next step operation.Band has pressed coiled tubing speed tubing string technology to be undoubtedly the powerful guarantee that this requirement is implemented.Press connector to be connected with coiled tubing on the vehicle-mounted cylinder of coiled tubing doing the coiled tubing free end of speed tubing string in the well by antitorque formula coiled tubing ring, just can be implemented under the situation with pressure coiled tubing as the speed tubing string in the well is tripped out this purpose safely.
Publication number is CN202338212U, and the Chinese patent literature that open day is on July 18th, 2012 discloses a kind of coiled tubing technical field, particularly a kind of coiled tubing connector.The coiled tubing afterbody of this connector cuts into a plurality of flaps, and every lobe is terminal T-shaped step-like; The design of the external cylindrical surface of top connection lower end has a plurality of straight troughs, and coiled tubing penetrates in the top connection, and each lobe of afterbody turnup that makes progress is placed in the corresponding straight trough of top connection simultaneously, and the terminal T shape of every lobe step surface hangs over straight trough groove rib top end face; Lower contact is connected with top connection mid portion external screw thread by the upper end internal thread, and top connection groove rib external diameter is identical with the lower contact internal diameter of cooperation, and the lower contact indoor design has a step, withstands on the coiled tubing turnup lower end surface that the back forms in the top connection groove.The utility model has been realized tension pressure, the raising greatly of anti-twisting property and the full-scale internal diameter of coiled tubing, has guaranteed the degree of passing through of cable and steel ball.The tension of existing connector and the deficiency that anti-twisting property all can not satisfy the needs of continuous pipe bit well construction have been overcome.
But be the prior art of representative with above-mentioned patent documentation, its mode that adopts the terminal T shape of the every lobe of coiled tubing afterbody step surface to hang over the straight trough groove rib top end face of top connection lower end realizes tension, antitorque mode, structure is comparatively complicated, and bonding strength can not satisfy the requirement that band has pressed coiled tubing speed tubing string technology to use.
Summary of the invention
For solving the problems of the technologies described above, the utility model proposes a kind of band that is applicable to and pressed the antitorque formula coiled tubing ring of coiled tubing speed tubing string technology to press connector.The utility model is simple in structure, be skillfully constructed, and it is firm to connect, and bonding strength can satisfy the requirement that band has been pressed the application of coiled tubing speed tubing string technology fully.
The utility model is realized by adopting following technical proposals:
A kind of antitorque formula coiled tubing ring is pressed connector, comprise connector, it is characterized in that: the end at connector is provided with seal groove, ring indent and moment of torsion transmission groove, wherein, described seal groove and ring indent are offered along the connector radial direction, seal groove and ring indent are disposed in order, and described moment of torsion transmits groove and offers along the connector axial direction, and the transmission groove runs through at least one described seal groove and at least one described ring indent.
Described seal groove has been embedded in the rubber packing.
Seal groove and ring indent are a plurality of and seal groove arranges at interval with the ring indent.
The axial width of ring indent is greater than the axial width of described seal groove, and the radial height of ring indent is more than or equal to the radial height of described seal groove.
Compared with prior art, the beneficial effects of the utility model show:
1, in the utility model, by offer seal groove and ring indent in the connector radial direction, offer the mode that moment of torsion transmits groove at the connector axial direction, with respect to prior art, simple in structure, be skillfully constructed, it is firm to connect, bonding strength can satisfy the requirement that band has pressed coiled tubing speed tubing string technology to use fully, can be widely used in fields such as coiled tubing is connected with instrument or coiled tubing is connected with coiled tubing; Simultaneously, transmit groove and run through at least one described seal groove and at least one described ring indent, best torque-transfer capability can be provided, thereby play antitorque effect.
2, in the utility model, be embedded in the rubber packing at seal groove, made the sealing effectiveness of seal groove better.
3, in the utility model, seal groove and ring indent are a plurality of and arrange at interval, so just can further guarantee sealing effectiveness, and the mode of a plurality of seal groove and ring indent is conducive to more firm with being connected of instrument or coiled tubing.
4, the utility model, the axial width of ring indent are greater than the axial width of described seal groove, and the radial height of ring indent is more than or equal to the radial height of described seal groove, such mode, when connecting, under the effect of ring indent, connect more reliable, in the effect lower seal better effects if of seal groove.
Description of drawings
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is structural representation of the present utility model
Fig. 2 looks schematic diagram for the right side of Fig. 1
Mark among the figure:
1, seal groove, 2, the ring indent, 3, moment of torsion transmits groove.
The specific embodiment
Embodiment 1
With reference to Figure of description, the utility model discloses a kind of antitorque formula coiled tubing ring and press connector, comprise connector, end at connector is provided with seal groove 1, ring indent 2 and moment of torsion transmission groove 3, wherein, described seal groove 1 and ring indent 2 are offered along the connector radial direction, and seal groove 1 and ring indent 2 are disposed in order, described moment of torsion transmits groove 3 and offers along the connector axial direction, and the transmission groove runs through at least one described seal groove 1 and at least one described ring indent 2.Described seal groove 1 has been embedded in the rubber packing.Seal groove 1 and ring indent 2 are a plurality of and seal groove 1 arranges at interval with ring indent 2.The axial width of ring indent 2 is greater than the axial width of described seal groove 1, and the radial height of ring indent 2 is more than or equal to the radial height of described seal groove 1.
Embodiment 2
Referring to accompanying drawing, present embodiment is transmitted groove 3 and is formed by seal groove 1, ring indent 2, moment of torsion.Embedding the rubber packing 1 li of seal groove makes it play sealing function.Ring indent 2 is at the terminal cannelure that extrudes of the coiled tubing that is about to use with special-purpose ring-pressing tool.Running through ring indent 2 bodies has a moment of torsion to transmit groove 3, best torque-transfer capability can be provided, thereby play antitorque effect.
In regular hour after coiled tubing is done the speed tubing string, the coiled tubing tensile strength in well satisfies under the precondition that trips out, if because the needs of technology require the coiled tubing as the speed tubing string in the well is tripped out, carry out next step operation.Band has pressed coiled tubing speed tubing string technology to be undoubtedly the powerful guarantee that this requirement is implemented.Press connector to be connected with coiled tubing on the vehicle-mounted cylinder of coiled tubing doing the coiled tubing free end of speed tubing string in the well by antitorque formula coiled tubing ring, thereby the coiled tubing as the speed tubing string in the well is tripped out safely.
Know-why: ring is pressed and is used special-purpose ring-pressing tool to press the connector connecting portion to apply enough big radial pressure to coiled tubing and antitorque formula coiled tubing ring when connecting, the coiled tubing external diameter is shunk recessed embedding connector, both mutual interlocks, bonding strength increases exponentially.Moment of torsion transmits groove 3 can provide best torque-transfer capability, thereby produces antitorque effect.
Claims (4)
1. an antitorque formula coiled tubing ring is pressed connector, comprise connector, it is characterized in that: the end at connector is provided with seal groove (1), ring indent (2) and moment of torsion transmission groove (3), wherein, described seal groove (1) and ring indent (2) are offered along the connector radial direction, seal groove (1) and ring indent (2) are disposed in order, described moment of torsion transmits groove (3) and offers along the connector axial direction, and the transmission groove runs through at least one described seal groove (1) and at least one described ring indent (2).
2. a kind of antitorque formula coiled tubing ring according to claim 1 is pressed connector, and it is characterized in that: described seal groove (1) has been embedded in the rubber packing.
3. a kind of antitorque formula coiled tubing ring according to claim 1 is pressed connector, it is characterized in that: seal groove (1) and ring indent (2) are a plurality of and seal groove (1) and ring indent (2) setting at interval.
4. a kind of antitorque formula coiled tubing ring according to claim 1 is pressed connector, it is characterized in that: the axial width of ring indent (2) is greater than the axial width of described seal groove (1), and the radial height of ring indent (2) is more than or equal to the radial height of described seal groove (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654132 CN203050545U (en) | 2012-12-03 | 2012-12-03 | Anti-torque coiled tubing annular pressure connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654132 CN203050545U (en) | 2012-12-03 | 2012-12-03 | Anti-torque coiled tubing annular pressure connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050545U true CN203050545U (en) | 2013-07-10 |
Family
ID=48733510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220654132 Expired - Lifetime CN203050545U (en) | 2012-12-03 | 2012-12-03 | Anti-torque coiled tubing annular pressure connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050545U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775007A (en) * | 2013-10-29 | 2014-05-07 | 中国石油天然气股份有限公司 | Rapid pressure welding connection method and device of coiled tubing |
| CN106703708A (en) * | 2016-12-30 | 2017-05-24 | 中国石油天然气集团公司 | Dented internal connector for coiled tubing |
| CN111119779A (en) * | 2019-11-22 | 2020-05-08 | 中国石油天然气股份有限公司 | Lifting tool for sheared coiled tubing and using method |
-
2012
- 2012-12-03 CN CN 201220654132 patent/CN203050545U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775007A (en) * | 2013-10-29 | 2014-05-07 | 中国石油天然气股份有限公司 | Rapid pressure welding connection method and device of coiled tubing |
| CN103775007B (en) * | 2013-10-29 | 2016-08-17 | 中国石油天然气股份有限公司 | A kind of coiled tubing quickly crimps connection method and device |
| CN106703708A (en) * | 2016-12-30 | 2017-05-24 | 中国石油天然气集团公司 | Dented internal connector for coiled tubing |
| CN111119779A (en) * | 2019-11-22 | 2020-05-08 | 中国石油天然气股份有限公司 | Lifting tool for sheared coiled tubing and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |