CN107529582A - A kind of well head hydraulic quick connecting device and construction technology - Google Patents
A kind of well head hydraulic quick connecting device and construction technology Download PDFInfo
- Publication number
- CN107529582A CN107529582A CN201710904197.5A CN201710904197A CN107529582A CN 107529582 A CN107529582 A CN 107529582A CN 201710904197 A CN201710904197 A CN 201710904197A CN 107529582 A CN107529582 A CN 107529582A
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- Prior art keywords
- piston
- fixture block
- connecting cylinder
- lower flange
- hydraulic quick
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- 238000010276 construction Methods 0.000 title claims abstract description 11
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 230000002265 prevention Effects 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Abstract
The present invention relates to a kind of well head hydraulic quick connecting device and construction technology, it is characterized in that：Coiled tubing wellhead hydraulic Quick Connect Kit is by upper flange, connecting cylinder, piston, lower flange, seal, alignment pin, fixture block forms, seal and it is installed to relevant position, piston is mounted on lower flange, connecting cylinder is threadedly coupled with lower flange, connecting cylinder, a sap cavity is formed between piston and lower flange, a sap cavity is formed between piston and connecting cylinder, alignment pin is threadedly coupled with connecting cylinder, fixture block has the cooperation conical surface with piston, when piston moves up, fixture block can be promoted to move radially inwardly, in summary, well head prompt disassembly and installation can be achieved, improve operating efficiency, Remote Hydraulic is locked, reduce operating risk, mechanical interlocking structure, can be after hydraulic locking, realize that mechanical secondary is locked, avoid the operating risk that live maloperation is brought, piston locks position indicating function, connect highly effective and safe.
Description
Technical field
The present invention relates to a kind of well head hydraulic quick connecting device and construction technology, belongs to field of petroleum machinery, especially
It is related to a kind of hydraulic quick connecting device matched with conventional coiled tubing wellhead assembly.
Background technology
Existing conventional coiled tubing wellhead assembly includes injection head, blowout prevention box, lubricator, preventer etc., wherein, blowout prevention
Pipe mainly provides the space removed for downhole tool.(as bored mill operation and fishing) in some continuous oil pipe operations,
Need repeatedly to remove coiled tubing, directly dismount lubricator, the problem of being not easy centering usually occur, operating efficiency is low, and tears open
Dress lubricator needs operation of ascending a height, and potential safety hazard be present.Well head type of attachment has two kinds of forms of flange form and screw-type.Flange form
Need artificial unloading, tighten multiple bolts, this need of work standing stands in well head and operated, and belongs to work of ascending a height
Industry, and installing/dismounting time length, working strength are big.Screw-type connection requires the centering of wellhead equipment high, it is necessary to artificial
By screw thread centering and tighten, especially in large-size continuous oil pipe operation, the centering difficulty of wellhead equipment is larger.In addition,
Artificial centering tightens screw thread and also belongs to operation of ascending a height, and potential safety hazard be present.
The content of the invention
For the above-mentioned deficiency of prior art, the invention provides a kind of well head hydraulic quick connecting device and construction work
Skill, locking device can be controlled with Remote Hydraulic using device involved in the present invention, be ascended a height without personnel and observe and operate, released
Injection head directly can be above carried after hydraulic locking, well head can be dismantled and completed.During installation, it possesses automatic centering and is oriented to work(
Can, solve the problems, such as the difficult centering of wellhead equipment.The quick connection of well head can be achieved, be provided simultaneously with Remote Hydraulic locking function,
Operating efficiency is improved, reduces operating risk, and is locked using mechanical secondary, avoids Field Force's maloperation from bringing hidden
Suffer from.
A kind of well head hydraulic quick connecting device of the present invention and construction technology, it is characterized in that：Coiled tubing wellhead hydraulic
Quick Connect Kit by upper flange (1), connecting cylinder (2), piston (3), lower flange (4), seal (5), (6), (7), (8) and
(9), alignment pin (10), fixture block (11) composition, seal (5), (6), (7), (8) and (9) are installed to relevant position, piston (3)
It is mounted on lower flange (4), connecting cylinder (2) is threadedly coupled with lower flange (4).Connecting cylinder (2), piston (3) and lower flange (4)
Between form a sap cavity 2 (22), between piston (3) and connecting cylinder (2) form a sap cavity 1 (21), alignment pin (10) with company
Connect cylinder (2) is threadedly coupled.Fixture block (11) has the cooperation conical surface with piston (3), when piston (3) moves up, can promote fixture block (11)
Move radially inwardly.
When coiled tubing wellhead hydraulic Quick Connect Kit is closed, piston (3) is in moving up the present invention
Dynamic maximum position, piston (3) endoporus coordinate with fixture block (11) periphery, and fixture block (11) is limited in upper flange (1) corresponding groove
Interior, locking upper flange (1), upper flange (1) is fitted close with lower flange (4) conical surface, and end face is fitted close.Alignment pin (10) can
It is fastened on piston (3).
For the present invention when coiled tubing wellhead hydraulic Quick Connect Kit be in open mode, piston (3) is in moving down
Dynamic maximum position, fixture block (11) can be freely movable in radial direction, when upper flange (1) moves up, can be pushed to fixture block (11)
In connecting cylinder (2).
Construction technology of the present invention：
1) coiled tubing wellhead hydraulic Quick Connect Kit by flange or is threaded between lubricator and preventer,
Sap cavity 1 (21) and sap cavity 2 (22) are connected respectively to hydraulic power source.
2) confirm that alignment pin (10) retreats to maximum position, in the state of sap cavity 1 (21) connection, suppressed to sap cavity 2 (22)
Certain pressure, after keeping 10s, check that piston position indicates, after confirming that piston (3) moves up in place, securing dowel (10), complete
Coiled tubing wellhead hydraulic Quick Connect Kit connects.
3) when disassembled, above carry in instrument to lubricator, close main valve or preventer on (gas) tree of recovering the oil and seal closing well entirely, unload
Fall blowout prevention overpressure.All alignment pins (10) are retreated into maximum position, in the state of sap cavity 2 (22) connection, to sap cavity 1
(21) certain pressure is suppressed, after keeping 10s, checks that piston position indicates, after confirming that piston (3) moves down in place, slings injection
Head.Upper flange (1) is sling with injection head, that is, completes dismounting, replaceable or scan tool.
4) injection head is sling, without precise alignment, directly upper flange (1) is put into lower flange (4).Repeat step
2, you can complete connection.
Advantage and good effect
Well head prompt disassembly and installation can be achieved, improve operating efficiency, Remote Hydraulic locking, reduce operating risk, machinery
Locking mechanism, it can realize that mechanical secondary is locked after hydraulic locking, avoid the operating risk that live maloperation is brought, it is living
Locked position indicator function is filled in, ensures piston in place, hydraulic power interface uses Quick Connect Kit type of attachment, and connection is efficiently
Safety.
Accompanying drawing and explanation
Fig. 1 is sectional structure chart of the upper flange of the present invention when connecting cylinder combines.
Fig. 2 is sectional structure chart of the upper flange of the present invention when connecting cylinder separates.
Reference：1-upper flange, 2-connecting cylinder, 3-piston, 4-lower flange, 5,6,7,8,9-seal,
10-alignment pin, 11-fixture block, 21-sap cavity 1,22-sap cavity 2
Embodiment：
1st, coiled tubing wellhead hydraulic Quick Connect Kit is by upper flange (1), connecting cylinder (2), piston (3), lower flange
(4), seal (5), (6), (7), (8) and (9), alignment pin (10), fixture block (11) composition.
2nd, sap cavity 2 (22) piston (3) and connecting cylinder are formed between connecting cylinder (2), piston (3) and lower flange (4)
(2) sap cavity 1 (21) is formed between.
3rd, fixture block (11) and piston (3) have the cooperation conical surface, when piston (3) moves up, can promote fixture block (11) radially to
Interior movement.
4th, upper flange (1) and lower flange (4) cone match.
5th, when coiled tubing wellhead hydraulic Quick Connect Kit is closed, piston (3) is in what is moved up
Maximum position, piston (3) endoporus coordinate with fixture block (11) periphery, and fixture block (11) is limited in upper flange (1) corresponding groove,
Upper flange (1) is locked, upper flange (1) is fitted close with lower flange (4) conical surface, and end face is fitted close.
6th, when coiled tubing wellhead hydraulic Quick Connect Kit is in open mode, piston (3) is in what is moved down
Maximum position, when upper flange (1) moves up, fixture block (11) can be pushed in connecting cylinder (2), upper flange (1) can be deviate from.
7th, dismantle：All alignment pins (10) are retreated into maximum position, in the state of sap cavity 2 (22) connection, to sap cavity 1
(21) certain pressure is suppressed, promotes piston (3) to move down, checks that piston position indicates, after confirming that piston (3) moves down in place, is above carried
Upper flange (1), upper flange (1) promote fixture block (11) to move radially, and fixture block (11) is retreated in connecting cylinder (2), upper flange (1)
Deviate from from fixture block (11), complete dismounting, as shown in Figure 2.
8th, assemble：By upper flange (1) and upper end wellhead assembly flange or threaded connection, then by lower flange (4) and lower end well
Mouth device flange or threaded connection.Upper flange (1) is put into lower flange (4), pushes constant weight, by set down weight, on
Flange (1) and the fitting of lower flange (4) end face.Upper and lower end wellhead assembly relies on the cone match of upper flange (1) and lower flange (4)
Realize automatic centering.Confirm that sap cavity 1 (21) is under connected state, suppress certain pressure from sap cavity 2 (22), promote piston (3)
Move up, piston (3) promotes fixture block (11) to move radially while moving up, and fixture block (11) enters in upper flange (1) groove, lock
Tight upper flange (1).Check that piston position indicates, after confirming that piston (3) moves up in place, fasten all alignment pins (10) manually, it is real
Existing secondary mechanical locking, prevents live maloperation.
9th, construction technology：
1) coiled tubing wellhead hydraulic Quick Connect Kit by flange or is threaded between lubricator and preventer,
Sap cavity 1 (21) and sap cavity 2 (22) are connected respectively to hydraulic power source.
2) confirm that alignment pin (10) retreats to maximum position, in the state of sap cavity 1 (21) connection, suppressed to sap cavity 2 (22)
Certain pressure, after keeping 10s, check that piston position indicates, after confirming that piston (3) moves up in place, securing dowel (10), complete
Coiled tubing wellhead hydraulic Quick Connect Kit connects.
3) when disassembled, above carry in instrument to lubricator, close main valve or preventer on (gas) tree of recovering the oil and seal closing well entirely, unload
Fall blowout prevention overpressure.All alignment pins (10) are retreated into maximum position, in the state of sap cavity 2 (22) connection, to sap cavity 1
(21) certain pressure is suppressed, after keeping 10s, checks that piston position indicates, after confirming that piston (3) moves down in place, slings injection
Head.Upper flange (1) is sling with injection head, that is, completes dismounting, replaceable or scan tool.
4) injection head is sling, without precise alignment, directly upper flange (1) is put into lower flange (4).Step 2 is repeated,
It can complete to connect.
Claims (3)
1. a kind of well head hydraulic quick connecting device and construction technology, it is characterized in that：Coiled tubing wellhead hydraulic quickly connects
Device is made up of upper flange, connecting cylinder, piston, lower flange, seal, alignment pin, fixture block, seal and is installed to corresponding positions
Put, piston is mounted on lower flange, and connecting cylinder is threadedly coupled with lower flange, and one is formed between connecting cylinder, piston and lower flange
Sap cavity, a sap cavity is formed between piston and connecting cylinder, alignment pin is threadedly coupled with connecting cylinder, and fixture block has cooperation to bore with piston
Face, when piston moves up, fixture block can be promoted to move radially inwardly.
2. a kind of well head hydraulic quick connecting device according to claim 1 and construction technology, it is characterized in that：When continuous
When oil pipe wellhead hydraulic Quick Connect Kit is closed, piston is in the maximum position that moves up, piston inner hole with
Fixture block periphery coordinates, and fixture block is limited in upper flange corresponding groove, locks upper flange, and upper flange is closely matched somebody with somebody with the lower flange conical surface
Close, end face is fitted close, and alignment pin can be fastened on piston.
3. a kind of well head hydraulic quick connecting device according to claim 1 and construction technology, it is characterized in that：When continuous
When oil pipe wellhead hydraulic Quick Connect Kit is in open mode, piston is in the maximum position moved down, and fixture block is radially
Direction can be freely movable, and when upper flange moves up, fixture block can be pushed in connecting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710904197.5A CN107529582A (en) | 2017-09-29 | 2017-09-29 | A kind of well head hydraulic quick connecting device and construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710904197.5A CN107529582A (en) | 2017-09-29 | 2017-09-29 | A kind of well head hydraulic quick connecting device and construction technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107529582A true CN107529582A (en) | 2018-01-02 |
Family
ID=60766486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710904197.5A Pending CN107529582A (en) | 2017-09-29 | 2017-09-29 | A kind of well head hydraulic quick connecting device and construction technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107529582A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779548A (en) * | 2019-04-02 | 2019-05-21 | 宝鸡市赛孚石油机械有限公司 | A kind of long-range plug-in connector of well head and the long-range well head connection of blowout hookup and operational method |
| CN111764857A (en) * | 2020-07-13 | 2020-10-13 | 濮阳市海华石油机械有限公司 | Petroleum wellhead assembly easy to assemble |
| CN113107779A (en) * | 2021-05-18 | 2021-07-13 | 中国石油大学(北京) | Quick connecting device of fan tower and lower part foundation |
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|---|---|---|---|---|
| GB2262789A (en) * | 1989-05-04 | 1993-06-30 | Dril Quip Inc | Fluid actuated camming ring with fluid actuated back-up release piston |
| CN2176427Y (en) * | 1993-11-17 | 1994-09-07 | 华北石油华源管子工具公司修造厂 | Locking casinghead |
| CN201588563U (en) * | 2010-02-03 | 2010-09-22 | 宝鸡石油机械有限责任公司 | Multi-cylinder driven underwater connector with adjustable interface |
| CN102003157A (en) * | 2010-12-10 | 2011-04-06 | 中国石油大学(北京) | Subsea wellhead connector |
| TWM405585U (en) * | 2010-10-21 | 2011-06-11 | Giotto S Ind Inc | Multipurpose tripod |
| US20110266006A1 (en) * | 2010-04-30 | 2011-11-03 | T-3 Property Holdings, Inc. | Hydraulic surface connector |
| CN202348147U (en) * | 2011-11-01 | 2012-07-25 | 什邡慧丰采油机械有限责任公司 | Sealing connecting structure for casing head and casing pipe |
| CN207739969U (en) * | 2017-09-29 | 2018-08-17 | 杰瑞能源服务有限公司 | A kind of well head hydraulic quick connecting device |
-
2017
- 2017-09-29 CN CN201710904197.5A patent/CN107529582A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2262789A (en) * | 1989-05-04 | 1993-06-30 | Dril Quip Inc | Fluid actuated camming ring with fluid actuated back-up release piston |
| CN2176427Y (en) * | 1993-11-17 | 1994-09-07 | 华北石油华源管子工具公司修造厂 | Locking casinghead |
| CN201588563U (en) * | 2010-02-03 | 2010-09-22 | 宝鸡石油机械有限责任公司 | Multi-cylinder driven underwater connector with adjustable interface |
| US20110266006A1 (en) * | 2010-04-30 | 2011-11-03 | T-3 Property Holdings, Inc. | Hydraulic surface connector |
| TWM405585U (en) * | 2010-10-21 | 2011-06-11 | Giotto S Ind Inc | Multipurpose tripod |
| CN102003157A (en) * | 2010-12-10 | 2011-04-06 | 中国石油大学(北京) | Subsea wellhead connector |
| CN202348147U (en) * | 2011-11-01 | 2012-07-25 | 什邡慧丰采油机械有限责任公司 | Sealing connecting structure for casing head and casing pipe |
| CN207739969U (en) * | 2017-09-29 | 2018-08-17 | 杰瑞能源服务有限公司 | A kind of well head hydraulic quick connecting device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779548A (en) * | 2019-04-02 | 2019-05-21 | 宝鸡市赛孚石油机械有限公司 | A kind of long-range plug-in connector of well head and the long-range well head connection of blowout hookup and operational method |
| CN109779548B (en) * | 2019-04-02 | 2024-03-29 | 宝鸡赛孚石油机械股份有限公司 | Remote wellhead connection and operation method for wellhead remote plug connector and blowout preventer |
| CN111764857A (en) * | 2020-07-13 | 2020-10-13 | 濮阳市海华石油机械有限公司 | Petroleum wellhead assembly easy to assemble |
| CN113107779A (en) * | 2021-05-18 | 2021-07-13 | 中国石油大学(北京) | Quick connecting device of fan tower and lower part foundation |
| CN113107779B (en) * | 2021-05-18 | 2022-06-14 | 中国石油大学(北京) | Quick connecting device of fan tower and lower part foundation |
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