CN206503580U - A kind of coiled tubing hanger - Google Patents

A kind of coiled tubing hanger Download PDF

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Publication number
CN206503580U
CN206503580U CN201720228700.5U CN201720228700U CN206503580U CN 206503580 U CN206503580 U CN 206503580U CN 201720228700 U CN201720228700 U CN 201720228700U CN 206503580 U CN206503580 U CN 206503580U
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CN
China
Prior art keywords
mandrel
packing element
coiled tubing
closing piece
piston
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Application number
CN201720228700.5U
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Chinese (zh)
Inventor
张利锋
吴其明
张兰江
郭武兵
梁玉斌
宋阳
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Shenzhen Highlead Oilfield Technology Development Co Ltd
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Shenzhen Highlead Oilfield Technology Development Co Ltd
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Priority to CN201720228700.5U priority Critical patent/CN206503580U/en
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Abstract

The utility model discloses a kind of coiled tubing hanger, including mandrel, pressure transmission hole is offered on mandrel;Top connection, top connection is set in mandrel outer wall and is connected with mandrel;Piston, piston is set in the outside of mandrel, and piston is connected by the first shear pin with top connection;Packing element component, packing element component is set in the outer wall of mandrel;Latch assembly, latch assembly is set in the outside of mandrel, and is connected with mandrel;Oil pipe clamping and holding assembly, oil pipe clamping and holding assembly includes the slips that can be extruded clamping oil pipe and with the slip spider fixed for slips;Slips, which opens guide assembly, includes upper centrum and hypocentrum, and upper centrum is set in the outer wall of mandrel;Hypocentrum is set in the outer wall of mandrel.The coiled tubing hanger that the utility model is provided can effectively avoid the influence of the storm valve to import gas producing device, realize security control purpose, can realize the exploitation of oil gas, in turn ensure that the security of exploitation.

Description

A kind of coiled tubing hanger
Technical field
The utility model is related to petroleum works technical field, more particularly to a kind of coiled tubing hanger.
Background technology
During exploitation of oil-gas field, the intermediary and later stages especially gone into operation in gas well, because payzone pressure declines, water content increases Plus, the water of output can not be discharged in time, reduce gas well yield, or even be crushed to death, without gas production.Utilize reducing hydrodynamics Principle, will form new production passage, draining aerogenesis, immediately by the ground of gas well output in small-size diameter string tripping in original production tubing string Layer water carries out well head by high velocity air, can effectively improve gas well capacity.However, the minor diameter that the technology is used at present Tubing string is typically to hang on well head, and obstruction is formd to storm valve, cause storm valve can not normal switching-off, occur tight After anxious situation, it is impossible to take urgent measure, thus cause potential safety hazard and be unfavorable for the various operations in underground in later stage.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of coiled tubing hanger, should Coiled tubing hanger can effectively avoid the influence of the storm valve to import gas producing device, realize security control mesh , the exploitation of oil gas can be realized, the security of exploitation is in turn ensure that.
The utility model is realized using following technical scheme:
A kind of coiled tubing hanger, including;
Pressure transmission hole is offered on mandrel, the mandrel;
Top connection, the top connection is set in the mandrel outer wall and is connected with the mandrel;
Piston, the piston is set in the outside of the mandrel, and the piston passes through the first shear pin and the top connection Connection;A cavity is formed between the piston, the top connection and the mandrel, the cavity is connected with pressure transmission hole;
Packing element component, the packing element component is set in the outer wall of the mandrel, for sealing coiled tubing;
Latch assembly, the latch assembly is set in the outside of the mandrel, and is connected with the mandrel, and described One end of latch assembly is connected with the piston, and the other end is connected with the packing element component, for locking the packing element component, from And ensure the sealing of coiled tubing;
Oil pipe clamping and holding assembly, the oil pipe clamping and holding assembly includes that the slips of clamping oil pipe can be extruded and with for the card Watt fixed slip spider, the slip spider is sheathed on the outside of the mandrel, and the slips is fixed on the slip spider;
Slips opens guide assembly, and the slips, which opens guide assembly, includes upper centrum and hypocentrum, and upper centrum is arranged In the outer wall of the mandrel, and one end of the upper centrum is abutted with the packing element component, the other end and the slip spider and/or The slips is abutted;The hypocentrum is set in the outer wall of the mandrel, and one end of the hypocentrum is connected with the mandrel, The other end is abutted with the slip spider and/or the slips.
It is preferred that, the latch assembly includes unidirectional mobile closing piece, and the unidirectional mobile closing piece is set in the mandrel Outer wall and adjacent with the piston lower surface.
It is preferred that, the unidirectional mobile closing piece is provided with closing piece pawl, and the mandrel is provided with to match with the closing piece pawl The mandrel pawl of conjunction, for making the unidirectional mobile closing piece unidirectionally be moved relative to the mandrel.
It is preferred that, the latch assembly also includes closing piece locating part, and the closing piece locating part is set in the unidirectional movement The outside of the closing piece and upper surface of the closing piece locating part is abutted with the bottom of the top connection.
It is preferred that, the packing element component includes packing element, and the packing element is set on the outer wall of the mandrel, and the packing element The lower surface of end face and the closing piece locating part is abutted.
It is preferred that, the packing element component also includes the first packing element guide shoe and the second packing element guide shoe, for guiding the packing element It is mobile;The first packing element guide shoe is located between the closing piece locating part and the packing element, and the second packing element guide shoe is located at institute State between packing element and the upper centrum.
It is preferred that, in addition to fishing head, the fishing head is connected with the top connection top, for being connected with fisher.
It is preferred that, the first sealing ring is provided between the fishing head and the top connection;The top connection and the piston Between be provided with the second sealing ring;The 3rd sealing ring is provided between the mandrel and the piston.
It is preferred that, guide pin is provided between the slip spider and the hypocentrum, for being oriented to the slip spider Motion.
It is preferred that, the hypocentrum is fixedly connected with the mandrel by the second shear pin.
Compared with prior art, the beneficial effects of the utility model are:
The coiled tubing hanger that the utility model embodiment is provided, can realize minor diameter coiled tubing seat hanging over original Below the storm valve of gas production tubing string, optional position suspension minor diameter is continuous inside the gas production oil pipe of storm valve bottom Oil pipe, and then storm valve is easy to the various operations under late well with normal switch, do not influenceing other functions of former well In the case of, speed pipe string technology is completed, the influence of the storm valve to well head gas producing device is not only effectively prevent, simultaneously The purpose of security control has been reached, the exploitation of oil gas has both been realized, the security of exploitation is in turn ensure that.In addition, the coiled tubing The hanging position of hanger can be set according to the throughput requirements of Oil/gas Well, reduce operating cost, and be conducive to speed tubing string work The popularization and implementation of skill.
Brief description of the drawings
Fig. 1 is the coiled tubing hanger diagrammatic cross-section that the embodiment of the utility model one is provided;
Fig. 2 is the exploded perspective view of coiled tubing hanger in Fig. 1.
Drawing reference numeral explanation:
1st, mandrel;2nd, top connection;3rd, piston;4th, the first shear pin;725th, packing element component;51st, packing element;52nd, the first packing element draws Footwear;53 second packing element guide shoes;6th, latch assembly;61st, closing piece is unidirectionally moved;62nd, closing piece locating part;7th, oil pipe clamping and holding assembly;71、 Slips;72nd, slip spider;8th, slips opens guide assembly;81st, upper centrum;82nd, hypocentrum;91st, fishing head;92nd, the first sealing Circle;93rd, the second sealing ring;94th, the 3rd sealing ring;95th, guide pin;96th, the second shear pin.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further:
As depicted in figs. 1 and 2, the utility model embodiment proposes a kind of coiled tubing hanger, including mandrel 1, on connect First 2, piston 3, packing element component 5, latch assembly 6, oil pipe clamping and holding assembly 7 and slips open guide assembly 8.Offered on mandrel 1 Pressure transmission hole, top connection 2 is set in the outer wall of mandrel 1 and is connected with mandrel 1.Piston 3 is set in the outside of mandrel 1, and piston 3 passes through First shear pin 4 is connected with top connection 2.A cavity is formed between piston 3, top connection 2 and mandrel 1, cavity is connected with pressure transmission hole.Glue Cartridge module 5 is set in the outer wall of mandrel 1, for sealing coiled tubing.Latch assembly 6 is set in the outside of mandrel 1, and and mandrel 1 is connected, and one end of latch assembly 6 is connected with piston 3, and the other end is connected with packing element component 5, for locking packing element component 5, so as to ensure the sealing of coiled tubing.Oil pipe clamping and holding assembly 7 includes that the slips 71 of clamping oil pipe can be extruded and with for card Watts 71 slip spiders 72 fixed, slip spider 72 is sheathed on the outside of mandrel 1, and slips 71 is fixed on slip spider 72.Slips Opening guide assembly 8 includes upper centrum 81 and hypocentrum 82, and upper centrum 81 is set in the outer wall of mandrel 1, and the one of upper centrum 81 End is abutted with packing element component 5, and the other end is abutted with slip spider 72 and/or slips 71;Hypocentrum 82 is set in the outer wall of mandrel 1, And one end of hypocentrum 82 is connected with mandrel 1, the other end is abutted with slip spider 72 and/or slips 71.
The coiled tubing hanger that the utility model embodiment is provided, can realize minor diameter coiled tubing seat hanging over original Below the storm valve of gas production tubing string, optional position uses the coiled tubing inside the gas production oil pipe of storm valve bottom Hanger hangs minor diameter coiled tubing, and then storm valve is easy to the various operations under late well with normal switch, In the case where not influenceing other functions of former well, speed pipe string technology is completed, not only be effectively prevent to well head gas producing device The influence of storm valve, while having reached the purpose of security control, has both realized the exploitation of oil gas, in turn ensure that the peace of exploitation Quan Xing.In addition, the hanging position of the coiled tubing hanger can be set according to the throughput requirements of Oil/gas Well, reduce operation into This, and be conducive to the popularization and implementation of speed pipe string technology.
It is preferred that, latch assembly 6 includes unidirectional mobile closing piece 61, unidirectional mobile closing piece 61 be set in the outer wall of mandrel 1 and It is adjacent with the lower surface of piston 3.It should be understood that unidirectionally mobile closing piece 61 is provided with closing piece pawl, mandrel is provided with and closing piece pawl The mandrel pawl being engaged, can so make unidirectionally to move closing piece 61 relative to the unidirectionally movement of mandrel 1, i.e., can make unidirectional mobile lock Block 61 is moved relative to mandrel 1 along the direction away from top connection 2.Further, in order to unidirectional mobile closing piece 61 is limited into mandrel 1 Specific region in move, latch assembly 6 also includes closing piece locating part 62, and closing piece locating part 62 is set in unidirectional mobile closing piece 61 Outside and the upper surface of closing piece locating part 61 abutted with the bottom of top connection 2.
It is preferred that, packing element component 5 includes packing element 51, and packing element 51 is set in the outer wall of mandrel 1, and the upper surface of packing element 51 and lock The lower surface adjoining of block locating part 62.
It is preferred that, packing element component 5 also includes the first packing element guide shoe 52 and the second packing element guide shoe 53, for guiding packing element 51 to move It is dynamic;First packing element guide shoe 52 is located between closing piece locating part 62 and packing element 51, and the second packing element guide shoe 53 is located at packing element 51 and upper vertebra Between body 81.
Specifically, one end of upper centrum 81 is fastened on the second packing element guide shoe 53, the other end of upper centrum 81 is fastened in card On watt seat 72.Hypocentrum 82 is fastened on slip spider 72 close to one end of slips 71.
It is preferred that, the coiled tubing hanger also includes fishing head 91, and fishing head 91 is connected with the top of top connection 2, is used for It is connected with fisher 91.
It is preferred that, the first sealing ring 92 is provided between fishing head 91 and top connection 2;Provided with the between top connection 2 and piston 3 Two sealing rings 93;The 3rd sealing ring 94 is provided between mandrel 1 and piston 3, can so realize fishing head 91 and top connection 2, on Joint 2 is tightly connected with piston 3, mandrel 1 with piston 3.In the utility model embodiment, it is preferred that the first sealing ring 92, Second sealing ring 93 and the 3rd sealing ring 94 are rubber seal.
It is preferred that, guide pin 95 is provided between slip spider 72 and hypocentrum 82, for the motion to guide slip seat 72.
It is preferred that, hypocentrum 82 is fixedly connected with mandrel 1 by the second shear pin 96.
The operation principle of the utility model embodiment:
The fishing head of the coiled tubing hanger is connected to oil pipe and slipped out of the hand the lower end of tool-joint, and the lower end of mandrel 1 is connected to Coiled tubing in well to be put in.Then the coiled tubing hanger after connection and coiled tubing are entered into well, until depth is reached The target location of gas well liquid loading tubing string.Then coiled tubing inside is suppressed, pressure is delivered to by the pressure transmission hole of mandrel 1 The plunger shaft being made up of top connection 2, piston 3, mandrel 1, the second sealing ring 93 and the 3rd sealing ring 94.Under the effect of the pressure, Piston 3 is moved down, and gradually increases pressure, until the first shear pin 4 is cut.After first shear pin 4 is cut, piston 3 is in pressure Continue to move down under driving, promote unidirectional mobile closing piece 61, closing piece locating part 62, the first packing element guide shoe 52, packing element 51, second Packing element guide shoe 53 and upper centrum 81 move down simultaneously.Upper centrum 81 moves down so that slips 71 upper centrum 81, slip spider 72 and under It is flared out under the ramp structure guiding of centrum 82, is finally caught in tube inner wall.In this process, packing element 51 is in the first packing element Under the extruding of the packing element guide shoe 53 of guide shoe 52 and second, tube inner wall is close in compression, and then realizes the sealing of coiled tubing.It is single Closing piece pawl is provided with to mobile closing piece 61, the mandrel 1 is provided with the mandrel pawl being engaged with the closing piece pawl, and closing piece falls Tooth is engaged with mandrel pawl, realizes the unidirectional movement of the unidirectional mobile closing piece 61, i.e. the relatively described core of unidirectional mobile closing piece 61 Axle 1 can only be moved along the direction away from top connection 2, be so able to ensure that after coiled tubing pressure release, slips 71, which is still in, to be opened State, and packing element 51 is still in compression seal state, and then the coiled tubing of instrument so that connection coiled tubing and oil pipe are slipped out of the hand Hanger can be secured firmly to the target depth of gas well liquid loading tubing string.Pressure release then is carried out to coiled tubing, oil pipe is taken out and takes off Hand-held tool, is normally produced.
When the coiled tubing hanger for having needed to be connected with coiled tubing, tripping in fisher, fisher is caught in salvaging Head fishing neck position, is then above carried.When upper lifting force reaches certain value, the second shear pin 96 is sheared, and hypocentrum 82 can be moved, Withdrawn and the retraction deblocking of packing element 51 so that slips 71 loosens, carry coiled tubing in continuation, the company until being connected with coiled tubing Continuous boll-weevil hanger is smoothly reclaimed, the end of job.
To sum up, the coiled tubing hanger that the utility model embodiment is provided, can realize and sit minor diameter coiled tubing Below the storm valve for hanging over former gas production tubing string, optional position practicality company inside the gas production oil pipe of storm valve bottom Continuous boll-weevil hanger suspension minor diameter coiled tubing, and then storm valve is easy to each under late well with normal switch Operation is planted, in the case where not influenceing other functions of former well, speed pipe string technology is completed, not only effectively prevent to well head gas production The influence of the storm valve of device, while having reached the purpose of security control, has both realized the exploitation of oil gas, in turn ensure that out The security adopted.In addition, the hanging position of the coiled tubing hanger can be set according to the throughput requirements of Oil/gas Well, work is reduced Industry cost, and be conducive to the popularization and implementation of speed pipe string technology.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various It is corresponding to change and deformation, and all these change and deformation should all belong to the protection of the utility model claim Within the scope of.

Claims (10)

1. a kind of coiled tubing hanger, it is characterised in that including;
Pressure transmission hole is offered on mandrel, the mandrel;
Top connection, the top connection is set in the mandrel outer wall and is connected with the mandrel;
Piston, the piston is set in the outside of the mandrel, and the piston is connected by the first shear pin with the top connection; A cavity is formed between the piston, the top connection and the mandrel, the cavity is connected with pressure transmission hole;
Packing element component, the packing element component is set in the outer wall of the mandrel, for sealing coiled tubing;
Latch assembly, the latch assembly is set in the outside of the mandrel, and is connected with the mandrel, and the locking One end of component is connected with the piston, and the other end is connected with the packing element component, for locking the packing element component, so as to protect Demonstrate,prove the sealing of coiled tubing;
Oil pipe clamping and holding assembly, the oil pipe clamping and holding assembly includes the slips that can be extruded clamping oil pipe and with so that the slips is solid Fixed slip spider, the slip spider is sheathed on the outside of the mandrel, and the slips is fixed on the slip spider;
Slips opens guide assembly, and the slips, which opens guide assembly, includes upper centrum and hypocentrum, and upper centrum is set in institute The outer wall of mandrel is stated, and one end of the upper centrum is abutted with the packing element component, the other end and the slip spider and/or described Slips is abutted;The hypocentrum is set in the outer wall of the mandrel, and one end of the hypocentrum is connected with the mandrel, another End is abutted with the slip spider and/or the slips.
2. coiled tubing hanger as claimed in claim 1, it is characterised in that the latch assembly includes unidirectional mobile lock Block, the unidirectional mobile closing piece is set in the outer wall of the mandrel and adjacent with the piston lower surface.
3. coiled tubing hanger as claimed in claim 2, it is characterised in that the unidirectional mobile closing piece falls provided with closing piece Tooth, the mandrel is provided with the mandrel pawl being engaged with the closing piece pawl, for making the unidirectional mobile closing piece with respect to institute Mandrel is stated unidirectionally to move.
4. coiled tubing hanger as claimed in claim 2, it is characterised in that it is spacing that the latch assembly also includes closing piece Part, the closing piece locating part be set in the outside of the unidirectional mobile closing piece and the upper surface of the closing piece locating part with it is described on The bottom of joint is abutted.
5. coiled tubing hanger as claimed in claim 4, it is characterised in that the packing element component includes packing element, the glue Jacket casing is located at the outer wall of the mandrel, and the packing element upper surface and the lower surface of the closing piece locating part are abutted.
6. coiled tubing hanger as claimed in claim 5, it is characterised in that the packing element component also draws including the first packing element Footwear and the second packing element guide shoe, for guiding the packing element to move;The first packing element guide shoe is located at the closing piece locating part and institute State between packing element, the second packing element guide shoe is located between the packing element and the upper centrum.
7. coiled tubing hanger as claimed in claim 1, it is characterised in that also including fishing head, the fishing head and institute The connection of top connection top is stated, for being connected with fisher.
8. coiled tubing hanger as claimed in claim 7, it is characterised in that set between the fishing head and the top connection There is the first sealing ring;The second sealing ring is provided between the top connection and the piston;Set between the mandrel and the piston There is the 3rd sealing ring.
9. coiled tubing hanger as claimed in claim 1, it is characterised in that set between the slip spider and the hypocentrum Guide pin is equipped with, for the motion to being oriented to the slip spider.
10. coiled tubing hanger as claimed in claim 1, it is characterised in that the hypocentrum and the mandrel pass through Two shear pins are fixedly connected.
CN201720228700.5U 2017-03-07 2017-03-07 A kind of coiled tubing hanger Active CN206503580U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720228700.5U CN206503580U (en) 2017-03-07 2017-03-07 A kind of coiled tubing hanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720228700.5U CN206503580U (en) 2017-03-07 2017-03-07 A kind of coiled tubing hanger

Publications (1)

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CN206503580U true CN206503580U (en) 2017-09-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988695A (en) * 2017-03-07 2017-07-28 深圳海力德油田技术开发有限公司 A kind of coiled tubing hanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988695A (en) * 2017-03-07 2017-07-28 深圳海力德油田技术开发有限公司 A kind of coiled tubing hanger

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