CN203488138U - Suspension device of coiled tubing wellhead - Google Patents

Suspension device of coiled tubing wellhead Download PDF

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Publication number
CN203488138U
CN203488138U CN201320601539.3U CN201320601539U CN203488138U CN 203488138 U CN203488138 U CN 203488138U CN 201320601539 U CN201320601539 U CN 201320601539U CN 203488138 U CN203488138 U CN 203488138U
Authority
CN
China
Prior art keywords
coiled tubing
lower house
upper shell
shell body
piston
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
Application number
CN201320601539.3U
Other languages
Chinese (zh)
Inventor
张胜海
姜宏志
纪振云
李正辉
李江鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XINJIANG HUAYOU TECHNOLOGY SERVICE Co Ltd
Original Assignee
XINJIANG HUAYOU TECHNOLOGY SERVICE Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by XINJIANG HUAYOU TECHNOLOGY SERVICE Co Ltd filed Critical XINJIANG HUAYOU TECHNOLOGY SERVICE Co Ltd
Priority to CN201320601539.3U priority Critical patent/CN203488138U/en
Application granted granted Critical
Publication of CN203488138U publication Critical patent/CN203488138U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a suspension device of a coiled tubing wellhead. The suspension device of the coiled tubing wellhead mainly comprises an upper shell body and a lower shell body which are fixedly connected. The inner portion of the upper shell body and the inner portion of the lower shell body are provided with a piston, sealing rubber and a locking tooth block from top to bottom, a sealed space is formed by the side wall of the piston, the upper shell body and the lower shell body, and a hydraulic hole capable of being used for supercharging is formed in the portion, corresponding to the sealed space, of the side wall of the lower shell body. A junk ring is arranged between the piston and the sealing rubber and a fastening jack screw used for tightly abutting against the junk ring is arranged on the portion, corresponding to the junk ring, on the side wall of the lower shell body. According to the suspension device of the coiled tubing wellhead, the locking tooth block and the sealing rubber can be remotely controlled and adjusted in a hydraulic mode; the tight locking force and the sealing condition are controlled through hydraulic pressure, so that high-pressure accurate operation is remotely conducted on the device and operation miss or personal injury caused by mental tension in the high-risk environments such as the high altitude, high pressure and the like is avoided. The suspension device of the coiled tubing wellhead can be rapidly connected with the wellhead and operation of trip-in, anchoring, sealing, fastening and the like on collided tubing can be efficiently and rapidly achieved.

Description

A kind of coiled tubing wellhead hookup
Technical field
The utility model relates to oil and gas exploitation equipment technical field, is specifically related to relate to a kind of coiled tubing wellhead hookup.
Background technology
In oil and gas exploitation process, often need install coiled tubing suspension arrangement additional at well head, as realized at producing well in pipe, lifting thickened oil is rare, dosing, gaslift etc.; At gas recovery well, realize coiled tubing water pumping gas production; Water injection well is realized the objects such as the accurate seperated layer water injection of concentric double pipe.
Though adopted coiled tubing suspension arrangement at present on gas production wellhead, it exists troublesome poeration, there is high risk in implementation process.Especially from operation window, add block teeth, caulking gum etc. is installed, need enter the conditions of work that are in extreme danger such as high-altitude, high pressure, in addition to block teeth locking, seal seal degree, fastening whether reliably need by micro-judgment, to coiled tubing, hang and bring great uncertainty, reduced the stability of construction reliability and suspension.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of coiled tubing wellhead hookup, and this device is without opening operation window, do not need artificial locking block teeth, the caulking gum etc. installed, can pass through hydraulic pressure Long-distance Control, Operating Pressure, meets all kinds of complex hole condition and uses.
The purpose of this utility model is carried out specific implementation by the following technical programs:
A kind of coiled tubing wellhead hookup, mainly comprise the upper shell and the lower house that are fixedly connected with, the middle part of upper shell is plugged in lower house and with lower house and communicates, the inside of described upper shell and lower house is disposed with piston, caulking gum and locking block teeth from top to bottom, between the sidewall of described piston and upper shell and lower house, form a seal cavity, on the sidewall of lower house corresponding to seal cavity, be provided with the hydraulic pressure hole that can be used for supercharging.
Between described piston and caulking gum, be provided with pressure ring, on the sidewall of described lower house, be provided with fastening jackscrew for holding out against pressure ring with pressure ring corresponding position.
Between described upper shell and lower house, be provided with sealing ring.
Described piston is stepped, and the stub end of described piston matches with lower house, and the little head end of described piston matches with upper shell, in the cooperation place of piston and upper shell and lower house, is provided with sealing ring.
A kind of coiled tubing wellhead hookup of the utility model can be controlled adjustment locking block teeth and caulking gum by Remote Hydraulic; and control coupling mechanism force, sealing condition by hydraulic pressure; can long-rangely to device, implement high pressure and accurately operate, avoid the operate miss or the personal injury that under the high-risk environment such as high-altitude, high pressure, because of psychological stress, cause.Can realize and being connected with well head fast, the realization of efficient quick to coiled tubing be lowered to, grappling, sealing, the operation such as fastening.
Accompanying drawing explanation
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 is the structural representation of a kind of coiled tubing wellhead hookup of the utility model.
In figure: 1-upper shell; 2-housing connecting bolt; 3-sealing ring; 4-piston; 5-hydraulic pressure hole; 6-pressure ring; 7-fastening jackscrew; 8-caulking gum; 9-locks block teeth; 10-lower house.
The specific embodiment
As shown in Figure 1, a kind of coiled tubing wellhead hookup described in the utility model embodiment, mainly comprise upper shell 1 and lower house 10, upper shell 1 is fixed together by housing connecting bolt 2 with lower house, the middle part of upper shell 1 is plugged in lower house 10 and with lower house 10 and communicates, upper shell 1 is disposed with piston 4 from top to bottom with the inside of lower house 10, caulking gum 8 and locking block teeth 9, between the sidewall of piston 4 and upper shell 1 and lower house 10, formed a seal cavity, on the sidewall of lower house 10 corresponding to seal cavity, be provided with the hydraulic pressure hole 5 that can be used for supercharging.
Preferred embodiment a kind of, between piston 4 and caulking gum 8, be provided with pressure ring 6, on the sidewall of lower house 10, be provided with fastening jackscrew 7 for holding out against pressure ring 6 with the corresponding position of pressure ring 6.Between upper shell 1 and lower house 10, be provided with sealing ring 3.
Further, piston 4 adopts stepped, and the stub end of piston 4 matches with lower house 10, and the little head end of piston 4 matches with upper shell 1, in piston 4 and the cooperation place of upper shell 1 and lower house 10, is provided with sealing ring.Upper shell 1 is flange arrangement with the end of lower house 10, by flange arrangement, is connected and makes suspension arrangement and well head become integral body with well head top and bottom, and upper shell 1 also can be connected with top and the bottom of well head respectively by screw thread with lower house 10.
The utility model in use, by designing requirement, this device is installed on to coiled tubing and need hangs well head position, top utilizes upper shell 1 to be connected with well head top, and bottom utilizes lower house 10 to be connected with well head bottom, becomes a part for well head and forms integral body with well head.Coiled tubing is lowered to and by normal coiled tubing, is lowered to program and is lowered to, when behind precalculated position, utilize hydraulic pressure to lower house 10 and piston 4, to form plunger shaft supercharging through hydraulic pressure hole 5, it is descending that supercharging promotes piston 4, drive pressure ring 6, caulking gum 8, locking block teeth 9 descending, now lock block teeth 9 locking locking coiled tubings, caulking gum 8 is realized well head and coiled tubing sealing, and coupling mechanism force and sealing can be by implementing hydraulic control; Screw again fastening jackscrew 7 and implement the fastening of pressure ring 6, ensure the properties such as suspension, sealing, now can cut off coiled tubing continuous-tube is operated to car disengaging end construction.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model; be not limited to the utility model; for a person skilled in the art; its technical scheme that still can record aforementioned each embodiment regulates; or part technical characterictic is wherein equal to replacement; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (4)

1. a coiled tubing wellhead hookup, mainly comprise the upper shell and the lower house that are fixedly connected with, the middle part of upper shell is plugged in lower house and with lower house and communicates, it is characterized in that: the inside of described upper shell and lower house is disposed with piston, caulking gum and locking block teeth from top to bottom, between the sidewall of described piston and upper shell and lower house, form a seal cavity, on the sidewall of lower house corresponding to seal cavity, be provided with the hydraulic pressure hole that can be used for supercharging.
2. a kind of coiled tubing wellhead hookup according to claim 1, is characterized in that: between described piston and caulking gum, be provided with pressure ring, on the sidewall of described lower house, be provided with fastening jackscrew for holding out against pressure ring with pressure ring corresponding position.
3. a kind of coiled tubing wellhead hookup according to claim 2, is characterized in that: between described upper shell and lower house, be provided with sealing ring.
4. according to a kind of coiled tubing wellhead hookup described in claims 1 to 3 any one, it is characterized in that: described piston is stepped, the stub end of described piston matches with lower house, the little head end of described piston matches with upper shell, in the cooperation place of piston and upper shell and lower house, is provided with sealing ring.
CN201320601539.3U 2013-09-28 2013-09-28 Suspension device of coiled tubing wellhead Expired - Fee Related CN203488138U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320601539.3U CN203488138U (en) 2013-09-28 2013-09-28 Suspension device of coiled tubing wellhead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320601539.3U CN203488138U (en) 2013-09-28 2013-09-28 Suspension device of coiled tubing wellhead

Publications (1)

Publication Number Publication Date
CN203488138U true CN203488138U (en) 2014-03-19

Family

ID=50258977

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320601539.3U Expired - Fee Related CN203488138U (en) 2013-09-28 2013-09-28 Suspension device of coiled tubing wellhead

Country Status (1)

Country Link
CN (1) CN203488138U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113494259A (en) * 2020-04-01 2021-10-12 中国石油天然气集团有限公司 Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method
CN115045632A (en) * 2022-08-15 2022-09-13 大庆市华禹石油机械制造有限公司 Anticorrosive gas production well head suitable for carbon dioxide gas production process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113494259A (en) * 2020-04-01 2021-10-12 中国石油天然气集团有限公司 Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method
CN113494259B (en) * 2020-04-01 2023-11-28 中国石油天然气集团有限公司 Coiled tubing suspension device, coiled tubing wellhead mandrel type suspension structure and method
CN115045632A (en) * 2022-08-15 2022-09-13 大庆市华禹石油机械制造有限公司 Anticorrosive gas production well head suitable for carbon dioxide gas production process
CN115045632B (en) * 2022-08-15 2022-10-28 大庆市华禹石油机械制造有限公司 Anticorrosive gas production well head suitable for carbon dioxide gas production process

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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: 20140319

Termination date: 20200928