CN203603824U - Double-slip type wellhead coiled tubing suspension device - Google Patents
Double-slip type wellhead coiled tubing suspension device Download PDFInfo
- Publication number
- CN203603824U CN203603824U CN201320811194.4U CN201320811194U CN203603824U CN 203603824 U CN203603824 U CN 203603824U CN 201320811194 U CN201320811194 U CN 201320811194U CN 203603824 U CN203603824 U CN 203603824U
- Authority
- CN
- China
- Prior art keywords
- coiled tubing
- slips
- pretension
- slip
- hitch
- 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 - Lifetime
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 32
- 238000012856 packing Methods 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 241000239290 Araneae Species 0.000 claims description 27
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000002265 prevention Effects 0.000 abstract 1
- 238000001802 infusion Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Supports For Pipes And Cables (AREA)
Abstract
The utility model discloses a double-slip type wellhead coiled tubing suspension device, which comprises a hanger body, a first suspension mechanism and a second suspension mechanism, wherein the second suspension mechanism is positioned above the first suspension mechanism; the first suspension mechanism is arranged in the hanger body and comprises a slip, a slip seat and a sealing packing, the slip is arranged on the slip seat and matched with the continuous oil pipe, and the slip seat is connected with the sealing packing; the second suspension mechanism comprises a pre-tightening flange, a pre-tightening slip pressing plate and a pre-tightening slip, the pre-tightening flange is fixedly connected with the hanger body, and the pre-tightening slip is arranged in the pre-tightening flange, matched with the coiled tubing and fixed through the pre-tightening slip pressing plate. The utility model discloses a two slips formula structures, the heavy slips of second have improved and have hung the quality, in the prevention later stage operation effectively, well head coiled tubing hangs the condition of inefficacy.
Description
Technical field
The utility model relates to a kind of dual-grip formula well head coiled tubing suspension arrangement, hangs for realizing reliable well head coiled tubing, belongs to industrial gas oil underground construction technical field.
Background technology
Coiled tubing hangs in operation, and well head coiled tubing Suspension Technique is the key of this operation technique.Realize safe and reliable suspension, first check that whether slips sheet is intact, then carry out the erection procedure of slips, last resort coiled tubing operating room suspending weight list index shows, scientifically judges suspension situation.Coiled tubing hanger also has the sealing between coiled tubing and pit shaft, relies on slip seals packing to realize, and is also the important component part of well head coiled tubing Suspension Technique.For example, China Patent No. " 201220338004.7 " discloses a kind of well head double seal coiled tubing suspension arrangement, open day is on 07 12nd, 2012, to be the sealing of strengthening coiled tubing, meet the requirement of water pumping gas production and snubbing serving is designed, mainly comprise the upper cartridge being located in hole enlargement hole, crossover flange center, the intrinsic side opening that radially injects of crossover flange, connect the fastening bolt of crossover flange and hanger, be located at the fan-shaped slips in hole enlargement hole, hanger center, upper conical cover, lower seal packing element and inferior pyramidal cover and be located at the radially setting jackscrew in side opening etc. of hanger body.
In prior art, coiled tubing hanger only has a set of suspension arrangement, due in wellsite applications process, drilling team utilizes the coiled tubing of suspension to carry out infusion operation for a long time, coiled tubing is produced and shake and strengthen the downward pulling force of coiled tubing and easily cause slips inefficacy coiled tubing to glide.Annular space infusion row of returning in coiled tubing causes top power to exceed coiled tubing deadweight, causes moving on coiled tubing, makes slips leave slip spider, also very easily causes hanger to lose efficacy.
Summary of the invention
The purpose of this utility model is to overcome the problems referred to above that in prior art, coiled tubing hanger exists, a kind of dual-grip formula well head coiled tubing suspension arrangement is provided, the utility model adopts dual-grip formula structure, the second heavy slips has improved sprung mass, effectively prevent in later stage operation, well head coiled tubing hangs situation about losing efficacy.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of dual-grip formula well head coiled tubing suspension arrangement, comprises hanger body, it is characterized in that: also comprise the first hitch and the second hitch, the second hitch is positioned at the first hitch top; Described the first hitch is arranged in hanger body, and the first hitch comprises slips, slip spider and sealed packing, and slips is arranged on slip spider and coordinates with coiled tubing, and slip spider is connected with sealed packing; Described the second hitch comprises pretension flange, pretension slips pressing plate and pretension slips, and described pretension flange is fixedly connected with hanger body, and pretension slips is arranged in pretension flange and coordinates with coiled tubing, and fixes by pretension slips pressing plate.
Described pretension flange is positioned at hanger body top, and pretension flange is fixedly connected with hanger body by studding bolt.
Described sealed packing is positioned at slip spider bottom, and sealed packing is connected with slip spider by screw mandrel.
Employing the utility model has the advantage of:
One, the utility model comprises the first hitch and the second hitch, and the second hitch is positioned at the first hitch top; Described the first hitch is arranged in hanger body, and the first hitch comprises slips, slip spider and sealed packing, and slips is arranged on slip spider and coordinates with coiled tubing, and slip spider is connected with sealed packing; Described the second hitch comprises pretension flange, pretension slips pressing plate and pretension slips, described pretension flange is fixedly connected with hanger body, pretension slips is arranged in pretension flange and coordinates with coiled tubing, and fix by pretension slips pressing plate, adopt this structure, due to dual-grip dual fail-safe effect, although to the increase of lower pulling force in the process of oil pipe infusion or upper top power, but the slips increasing makes oil pipe that upper and lower displacement can not occur, guarantee the safety of hanging, the suspension effectively overcoming in infusion was lost efficacy, and more can guarantee that well head coiled tubing hangs.
Two, in the utility model, the second hitch is arranged on the first hitch top, the inner slip spider that self forms of the second resuspended hang device, slips upper end arranges pretension slips pressing plate, utilizing instrument directly to tighten pretension slips pressing plate kills pretension slips, prevent from the operation of oil pipe infusion occurring after the power of upper top, its pretension slips is subjected to displacement leave slip spider to make to hang and lost efficacy.
Three, in the utility model, described pretension flange is positioned at hanger body top, and pretension flange is fixedly connected with hanger body by studding bolt, and this mode has guaranteed the reliability that the first hitch is connected with the second hitch.
Four, in the utility model, described sealed packing is positioned at slip spider bottom, sealed packing is connected with slip spider by screw mandrel, adopt this structure, when coiled tubing is transferred to after predetermined well depth, tighten screw mandrel and realize the sealing between coiled tubing and pit shaft, then place slips and hang coiled tubing in well, realize first and reconnect continuous oil pipe suspension.
To sum up, the utility model patent principle is clear, be skillfully constructed, and simple in structure, hanging capacity is strong, and sealing is reliable, safer, reliably realize well head coiled tubing and hang, and can be widely used in the fields such as down-hole oil tube suspension.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
In figure, be labeled as: 1, hanger body, 2, slips, 3, slip spider, 4, sealed packing, 5, coiled tubing, 6, pretension flange, 7, pretension slips pressing plate, 8, pretension slips, 9, studding bolt.
The specific embodiment
A kind of dual-grip formula well head coiled tubing suspension arrangement, comprises hanger body 1, also comprises the first hitch and the second hitch, and the second hitch is positioned at the first hitch top; Described the first hitch is arranged in hanger body 1, and the first hitch comprises slips 2, slip spider 3 and sealed packing 4, and slips 2 is arranged on slip spider 3 and coordinates with coiled tubing 5, and slip spider 3 is connected with sealed packing 4; Described the second hitch comprises pretension flange 6, pretension slips pressing plate 7 and pretension slips 8, and described pretension flange 6 is fixedly connected with hanger body 1, and pretension slips 8 is arranged in pretension flange 6 and coordinates with coiled tubing 5, and fixing by pretension slips pressing plate 7.
Preferred embodiment of the present utility model is that described pretension flange 6 is positioned at hanger body 1 top, and pretension flange 6 is fixedly connected with hanger body 1 by studding bolt 9.
Another preferred embodiment of the present utility model is, described sealed packing 4 is positioned at slip spider 3 bottoms, and sealed packing 4 is connected with slip spider 3 by screw mandrel.
Adopt after the first hitch, when coiled tubing is after the designing requirement degree of depth, stop lower coiled tubing, the setting jackscrew of turn suspension assembly, make its sealed packing seal the annular pressure of oil pipe, lay down the pressure on hanger top, open coiled tubing well head operation window, send fan-shaped slips to enter slip spider, then transfer coiled tubing to suspending weight and drop to zero, then add suspending weight 2-5 ton, after guaranteeing that coiled tubing hangs successfully, utilize preventer to shear oil pipe, coiled tubing hangs successfully.
The second hitch is arranged on the first hitch top, the inner slip spider that self forms of pretension flange in the second hitch, pretension slips pressing plate is installed in pretension slips upper end, utilizing instrument directly to tighten pretension slips pressing plate kills pretension slips, prevent from the operation of oil pipe infusion occurring upper top power, pretension slips is subjected to displacement leave slip spider to make to hang and lost efficacy.Although simultaneously because dual-grip dual fail-safe effect is to the increase of lower pulling force in the process of oil pipe infusion or upper top power, but the pretension slips increasing makes oil pipe that upper and lower displacement can not occur, guarantee the safety of hanging, the suspension effectively overcoming in infusion was lost efficacy, and more can guarantee that well head coiled tubing hangs.
The utility model aims to provide coiled tubing and hangs in operation, more reliably hangs well head coiled tubing for realizing.Coiled tubing hangs operation, not only needs safety to hang well head coiled tubing, but also needs the sealing between well head coiled tubing and pit shaft.In order to reach the safer well head coiled tubing that hangs more reliably, designed a kind of dual-grip formula well head coiled tubing suspension arrangement for this reason.Dual-grip formula well head coiled tubing suspension arrangement is in design, and especially the design of the second hitch is more ingenious, and the appearance of the second hitch has improved sprung mass, effectively prevents in later stage operation, and well head coiled tubing hangs situation about losing efficacy.
The utility model hangs as object take well head coiled tubing, is to realize the Primary Component that well head coiled tubing hangs.Use dual-grip to realize safer well head coiled tubing and hang, sealed packing is realized between coiled tubing and pit shaft and being sealed.
The first hitch assembling: first pack sealed packing in hanger body, and suitably fix with screw mandrel, coiled tubing is transferred to after predetermined well depth, tighten screw mandrel and realize the sealing between coiled tubing and pit shaft, place again slips and hang coiled tubing in well, realize first and reconnect continuous oil pipe suspension.
The second hitch assembling: assembly pretightening flange and studding bolt in the first resuspended hanging device, tighten pretension slips pressing plate, realize manual compression pretension slips pressing plate and kill pretension slips, realize second and reconnect continuous oil pipe suspension.
Claims (3)
1. a dual-grip formula well head coiled tubing suspension arrangement, comprises hanger body (1), it is characterized in that: also comprise the first hitch and the second hitch, the second hitch is positioned at the first hitch top; Described the first hitch is arranged in hanger body (1), the first hitch comprises slips (2), slip spider (3) and sealed packing (4), slips (2) is arranged on slip spider (3) and above coordinates with coiled tubing (5), and slip spider (3) is connected with sealed packing (4); Described the second hitch comprises pretension flange (6), pretension slips pressing plate (7) and pretension slips (8), described pretension flange (6) is fixedly connected with hanger body (1), pretension slips (8) is arranged in pretension flange (6) and coordinates with coiled tubing (5), and fixing by pretension slips pressing plate (7).
2. dual-grip formula well head coiled tubing suspension arrangement according to claim 1, it is characterized in that: described pretension flange (6) is positioned at hanger body (1) top, and pretension flange (6) is fixedly connected with hanger body (1) by studding bolt (9).
3. dual-grip formula well head coiled tubing suspension arrangement according to claim 1 and 2, is characterized in that: described sealed packing (4) is positioned at slip spider (3) bottom, and sealed packing (4) is connected with slip spider (3) by screw mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320811194.4U CN203603824U (en) | 2013-12-11 | 2013-12-11 | Double-slip type wellhead coiled tubing suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320811194.4U CN203603824U (en) | 2013-12-11 | 2013-12-11 | Double-slip type wellhead coiled tubing suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603824U true CN203603824U (en) | 2014-05-21 |
Family
ID=50716501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320811194.4U Expired - Lifetime CN203603824U (en) | 2013-12-11 | 2013-12-11 | Double-slip type wellhead coiled tubing suspension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603824U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358536A (en) * | 2014-11-10 | 2015-02-18 | 杰瑞能源服务有限公司 | Continuous oil pipe hanger for velocity tubular column |
| CN107989566A (en) * | 2018-01-12 | 2018-05-04 | 科莱斯（天津）电热科技有限公司 | A kind of high-pressure well mouth T cables hanger sealing connection mechanism |
| CN108086937A (en) * | 2018-01-12 | 2018-05-29 | 科莱斯（天津）电热科技有限公司 | A kind of high-pressure well mouth hanger controls total valve gear |
| CN113417592A (en) * | 2021-01-18 | 2021-09-21 | 苏州道森钻采设备股份有限公司 | Novel throw and drag for electric submersible pump well head christmas tree device |
| WO2024244359A1 (en) * | 2023-06-01 | 2024-12-05 | 中国石油天然气集团有限公司 | Construction method for hanging coiled tubing at wellhead and plugging well completion string at well bottom |
-
2013
- 2013-12-11 CN CN201320811194.4U patent/CN203603824U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358536A (en) * | 2014-11-10 | 2015-02-18 | 杰瑞能源服务有限公司 | Continuous oil pipe hanger for velocity tubular column |
| CN107989566A (en) * | 2018-01-12 | 2018-05-04 | 科莱斯（天津）电热科技有限公司 | A kind of high-pressure well mouth T cables hanger sealing connection mechanism |
| CN108086937A (en) * | 2018-01-12 | 2018-05-29 | 科莱斯（天津）电热科技有限公司 | A kind of high-pressure well mouth hanger controls total valve gear |
| CN113417592A (en) * | 2021-01-18 | 2021-09-21 | 苏州道森钻采设备股份有限公司 | Novel throw and drag for electric submersible pump well head christmas tree device |
| WO2024244359A1 (en) * | 2023-06-01 | 2024-12-05 | 中国石油天然气集团有限公司 | Construction method for hanging coiled tubing at wellhead and plugging well completion string at well bottom |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203603824U (en) | Double-slip type wellhead coiled tubing suspension device | |
| CN106121579B (en) | Bi-directional compression hydraulic setting is without anchoring packer and its application method | |
| CN205689156U (en) | A kind of high-adaptability stress decentralized bidirectional hydraulic drilling jar | |
| CN104213868A (en) | Desirable and drillable anchor packer | |
| CN101392633B (en) | Mechanical and hydraulic double-acting expansion sieve tube hanger | |
| CN201794552U (en) | Large-diameter fracturing packer | |
| CN208184703U (en) | The packer of torque can be transmitted | |
| CN201843563U (en) | Mechanical downhole inner and outer integrated blowout preventer | |
| CN103790542B (en) | A coiled tubing suspension sealing device for testing under high temperature and pressure and its use method | |
| CN106050181B (en) | Thermal extraction casing head | |
| CN203783515U (en) | Gas-drive production wellhead device | |
| CN203808923U (en) | Suspension releasing packer for oil-gas water well | |
| CN203626682U (en) | SAGD (steam assisted gravity drainage) steam injection well head device | |
| CN207905776U (en) | SAGD oil recovery production wellhead devices | |
| CN103321599A (en) | Multifunctional ground anchor device | |
| CN203394399U (en) | A disengaged anchor | |
| CN203742530U (en) | Suspension packer | |
| CN203347718U (en) | Running tool for hydraulic packer | |
| CN101560871B (en) | Multi-pipe-column injection test thermal recovery wellhead device | |
| CN205349269U (en) | Bore hole sleeve pipe anchoring ware | |
| CN205135516U (en) | Coiled tubing hanger is used in gas well exploitation | |
| CN202249867U (en) | Oil draining anchoring device of oil pipe | |
| CN212479153U (en) | Multifunctional metal sealing type casing head | |
| CN203175469U (en) | Hydraulic packer | |
| CN207177824U (en) | A kind of current limliting opening device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200915 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: The 1 section of No. 3 company Chuanqing Drilling Technology Information Office Chenghua District Green Road 610051 Chengdu City, Sichuan Province Patentee before: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |