CN205172506U - Coiled tubing flow string suspension connection ware - Google Patents
Coiled tubing flow string suspension connection ware Download PDFInfo
- Publication number
- CN205172506U CN205172506U CN201520920407.6U CN201520920407U CN205172506U CN 205172506 U CN205172506 U CN 205172506U CN 201520920407 U CN201520920407 U CN 201520920407U CN 205172506 U CN205172506 U CN 205172506U
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- China
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- coiled tubing
- lower body
- flow string
- retaining mechanism
- slips
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Abstract
The utility model provides a coiled tubing flow string suspension connection ware, including last body, lower body. Wherein, it all is the tube -shape with lower body to go up the body, go up body and body fixed connection down, locking mechanism install in lower internal, locking mechanism stings coiled tubing tightly in order to incite somebody to action the body is connected with coiled tubing down, be equipped with the screw thread on the lateral wall of last body, be equipped with fishing neck on the inside wall of last body, can realize the oil pipe head and salvage. The fixed connection that coiled tubing and oil pipe head or other instruments can be accomplished to the coiled tubing suspension connection ware is with sealed, and built -in fishing neck cooperation hydraulic pressure can move back and send to / and recovery instrument or conventional fishing tool carried out oil pipe and salvaged, and the implementation tool cluster is gone into down and is risen.
Description
Technical field
The utility model relates to petroleum industry auxiliary equipment field, particularly relates to a kind of coiled tubing flow string and hangs connector.
Background technology
The effective exploitation of shale gas resource mainly has benefited from the enforcement of massive hydraulic fracture technology, and this just requires enough large fluid passage, and prior art directly implements massive hydraulic fracture construction mainly through sleeve pipe.Need band to depress into flow string after pressure break completes, adopt at present main method to have under Operating Pressure machine the large class means of coiled tubing two under oil pipe and coild tubing unit.
For oil pipe method under Operating Pressure machine, its Operating Pressure facility have the feature that construction cost is high, the activity duration is long, security risk is large.For the method for coiled tubing under coild tubing unit, coiled tubing hanger need be increased on the top of well head main valve.Now there is following problem: first changes shaft collar; Second there is the situation (because main valve need coordinate plain tubing hanger could realize sealing) that main valve cannot use; 3rd is there is tubing string long term seal unreliable (because sealing is only by rubber in one coiled tubing hanger), loses envelope have a big risk when well head pressure height.
Utility model content
Main purpose of the present utility model is to provide a kind of coiled tubing flow string to hang connector, is intended to realize directly being suspended in tubing head four-way after coiled tubing is connected with plain tubing hanger, using the flow string as oil, gas well.
For achieving the above object, the utility model provides a kind of coiled tubing flow string to hang connector, comprise body, lower body, wherein, described upper body and lower body are all in tubular, described upper body is fixedly connected with lower body, retaining mechanism is installed in described lower body, and coiled tubing is stung tight to be connected with coiled tubing by described lower body by described retaining mechanism, and the outside of described upper body is provided with screw thread, the inside wall of described upper body is provided with fishing neck, can realize tubing head and salvage.
Preferably, described upper body and described lower body are for be threaded and described lower body is provided with anti-back pin buckle follows closely.
Preferably, described fishing neck hydraulic pressure can be coordinated to move back send to/recovery instrument or conventional Fishing Tools carried out oil pipe and salvaged.
Preferably, described lower body also comprises sealing mechanism.
Preferably, described retaining mechanism is slip-type retaining mechanism, rivet type retaining mechanism or ring pressure type retaining mechanism.
Preferably, described slip-type retaining mechanism comprises upper baffle ring, spacing centrum, slips and lower gear ring, wherein, described slips is installed in described lower body, described spacing centrum is installed on the outside of described slips and abuts with its dental lamina, described upper baffle ring is positioned at described slips one end near described upper body, and described lower gear ring is positioned at described spacing centrum near one end of lower body.
Preferably, described sealing mechanism is sealing ring, and is provided with multiple.
The coiled tubing flow string that the utility model proposes hangs connector, being fixedly connected with and sealing of coiled tubing and tubing head or other instruments can be completed, built-in fishing neck coordinates hydraulic pressure to move back to send to/and recovery instrument or conventional Fishing Tools carried out oil pipe and salvaged, enter under implementation tool string and trip out, coiled tubing directly can be suspended in tubing head four-way, change the pattern that existing flow string needs to add special coiled tubing hanger on main valve, obtain the christmas tree well head of standard after having constructed, be more conducive to the needs of later stage operation.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model coiled tubing flow string hangs connector preferred embodiment;
Fig. 2 be the utility model coiled tubing flow string hang connector and coiled tubing, tubing head, launch-work instrument with the use of structural representation.
In figure, the upper body of 1-, 2-anti-back pin buckle is followed closely, 3-sealing mechanism, 4-upper baffle ring, 5-slips, the spacing centrum of 6-, 7-lower gear ring, body under 8-, 9-fishing neck, 10-tubing head, 11-coiled tubing hangs connector, and 12-coiled tubing, 13-hydraulic pressure can move back sends/recovery instrument to.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, in description of the present utility model, term " transverse direction ", " longitudinal direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, be not indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
The utility model proposes a kind of coiled tubing flow string and hang connector.
See figures.1.and.2, Fig. 1 is the structural representation that the utility model coiled tubing flow string hangs connector preferred embodiment; Fig. 2 be the utility model coiled tubing flow string hang connector and coiled tubing, tubing head, launch-work instrument with the use of structural representation.
In this preferred embodiment, a kind of coiled tubing flow string hangs connector and comprises body 1, lower body 8.Wherein, described upper body 1 and lower body 8 are all in tubular, described upper body 1 is fixedly connected with lower body 8, retaining mechanism is installed in described lower body 8, coiled tubing 12 is stung tight to be connected with coiled tubing 12 by described lower body 8 by described retaining mechanism, the lateral wall of described upper body 1 is provided with the screw thread be connected with tubing head or other instruments, and the inside wall of described upper body 1 is provided with fishing neck, can realize tubing head and salvage.
Particularly, described coiled tubing flow string hangs in connector, and upper body 1 and described lower body 8 are for be threaded and lower body 8 is provided with anti-back pin buckle follows closely 2; Described upper body 1 outer wall is provided with the screw thread be connected with tubing head 10 or other instruments, and inwall is provided with fishing neck 9, and all internal diameters change place of upper body 1 is equipped with fillet, prevents fluid erosion; Described fishing neck 9 can coordinate hydraulic pressure to move back to send to/and recovery instrument 13 or conventional Fishing Tools carried out oil pipe and salvaged; Described lower body 8 also comprises sealing mechanism 3.
In the present embodiment, retaining mechanism can be slip-type retaining mechanism, rivet type retaining mechanism or ring pressure type retaining mechanism.
When retaining mechanism is slip-type retaining mechanism, slip-type retaining mechanism comprises upper baffle ring 4, slips 5, spacing centrum 6 and lower gear ring 7, wherein, described slips 5 is installed in described lower body 8, described spacing centrum 6 is installed on the outside of described slips 5 and abuts with its dental lamina, described upper baffle ring 4 is positioned at described slips 5 one end near described upper body 1, and described lower gear ring 7 is positioned at described spacing centrum 6 one end near lower body 8; Described sealing mechanism 3 is sealing ring, and is provided with multiple (sealing ring is provided with multiple).
Further, by arranging upper baffle ring 4 and lower gear ring 7, the two ends up and down of slips 5 are avoided to contact with coiled tubing 12.By arranging spacing centrum 6, the dental lamina of slips 5 is extruded, thus when slips 5 and connected pipes are more moved to the direction that the two departs from mutually, multiple dental laminas of slips 5 more move near the direction of coiled tubing 12 axis, make gap between multiple dental lamina less, make its to coiled tubing 12 to sting tight power larger, thus improve slips 5 and the bonding strength of connected pipes, make this coiled tubing flow string hang connector and there is spiral pretension and lock the chucking power of slips, make it not easily get loose.
Workflow:
After slips 5 is installed, connect upper and lower body and tighten anti-back pin buckle nail 2.
Coiled tubing is hanged flow string to hang body 1 outside screw and tubing head 10 or other instruments on connector and tighten.
Hang connector 11 lower end from coiled tubing flow string and insert coiled tubing 12, until be hampered; Coordinated by multiple dental laminas of slips 5 and coiled tubing 12 is stung tightly to be connected with coiled tubing 12 by lower body 8.
Coiled tubing flow string hangs connector to be salvaged internal diameter 9 and coordinates hydraulic pressure to move back to send to/and recovery instrument 13 can complete tool string and give up and salvaging.
The coiled tubing flow string that the present embodiment proposes hangs connector, being fixedly connected with and sealing of coiled tubing and tubing head or other instruments can be completed, built-in fishing neck coordinates hydraulic pressure to move back to send to/and recovery instrument or conventional Fishing Tools carried out oil pipe and salvaged, enter under implementation tool string and trip out, coiled tubing directly can be suspended in tubing head four-way, change the pattern that existing flow string needs to add special coiled tubing hanger on main valve, obtain the christmas tree well head of standard after having constructed, be more conducive to the needs of later stage operation.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing the utility model manual and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. a coiled tubing flow string hangs connector, it is characterized in that, comprise body, lower body, wherein, described upper body and lower body are all in tubular, described upper body is fixedly connected with lower body, retaining mechanism is installed in described lower body, and coiled tubing is stung tight to be connected with coiled tubing by described lower body by described retaining mechanism, and the outside of described upper body is provided with screw thread, the inside wall of described upper body is provided with fishing neck, can realize tubing head and salvage.
2. coiled tubing flow string as claimed in claim 1 hangs connector, it is characterized in that, described upper body and described lower body are for be threaded and described lower body is provided with anti-back pin buckle follows closely.
3. coiled tubing flow string as claimed in claim 2 hangs connector, it is characterized in that, and described fishing neck can coordinate hydraulic pressure to move back to send to/and recovery instrument or conventional Fishing Tools carried out oil pipe and salvaged.
4., as the coiled tubing flow string in claims 1 to 3 as described in any one hangs connector, it is characterized in that, described lower body also comprises sealing mechanism.
5. coiled tubing flow string as claimed in claim 4 hangs connector, and it is characterized in that, described retaining mechanism is slip-type retaining mechanism, rivet type retaining mechanism or ring pressure type retaining mechanism.
6. coiled tubing flow string as claimed in claim 5 hangs connector, it is characterized in that, described slip-type retaining mechanism comprises upper baffle ring, spacing centrum, slips and lower gear ring, wherein, described slips is installed in described lower body, described spacing centrum is installed on the outside of described slips and abuts with its dental lamina, and described upper baffle ring is positioned at described slips one end near described upper body, and described lower gear ring is positioned at described spacing centrum near one end of lower body.
7. coiled tubing flow string as claimed in claim 5 hangs connector, and it is characterized in that, described sealing mechanism is sealing ring, and is provided with multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520920407.6U CN205172506U (en) | 2015-11-18 | 2015-11-18 | Coiled tubing flow string suspension connection ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520920407.6U CN205172506U (en) | 2015-11-18 | 2015-11-18 | Coiled tubing flow string suspension connection ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205172506U true CN205172506U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520920407.6U Active CN205172506U (en) | 2015-11-18 | 2015-11-18 | Coiled tubing flow string suspension connection ware |
Country Status (1)
| Country | Link |
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| CN (1) | CN205172506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809970A (en) * | 2022-04-18 | 2022-07-29 | 中国石油化工股份有限公司 | Coiled tubing built-in hanger fisher and method for shale gas well sand jam |
-
2015
- 2015-11-18 CN CN201520920407.6U patent/CN205172506U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809970A (en) * | 2022-04-18 | 2022-07-29 | 中国石油化工股份有限公司 | Coiled tubing built-in hanger fisher and method for shale gas well sand jam |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |