CN207739969U - A kind of well head hydraulic quick connecting device - Google Patents
A kind of well head hydraulic quick connecting device Download PDFInfo
- Publication number
- CN207739969U CN207739969U CN201721272392.2U CN201721272392U CN207739969U CN 207739969 U CN207739969 U CN 207739969U CN 201721272392 U CN201721272392 U CN 201721272392U CN 207739969 U CN207739969 U CN 207739969U
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- piston
- fixture block
- connecting cylinder
- lower flange
- well head
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Abstract
The utility model is related to arrive a kind of well head hydraulic quick connecting device, it is characterized in that：Coiled tubing wellhead hydraulic Quick Connect Kit is by upper flange, connecting cylinder, piston, lower flange, sealing element, positioning pin, fixture block forms, sealing element and it is installed to corresponding 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, positioning pin is threadedly coupled with connecting cylinder, fixture block has the cooperation conical surface with piston, when piston moves up, fixture block can be pushed to move radially inwardly, in summary, the utility model can realize well head prompt disassembly and installation, improve operating efficiency, Remote Hydraulic is locked, reduce operating risk, mechanical interlocking structure, it can be after hydraulic locking, realize mechanical secondary locking, avoid the operating risk that live maloperation is brought, piston locks position indicating function, connect highly effective and safe.
Description
Technical field
The utility model is related to arrive a kind of well head hydraulic quick connecting device, belong to field of petroleum machinery, more particularly to one
Kind and the matched hydraulic quick connecting device of 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.In certain continuous oil pipe operations (such as drilling and grinding operation and fishing),
Need repeatedly to remove coiled tubing, directly dismount lubricator, usually occur being not easy to the problems in, operating efficiency is low, and tears open
Dress lubricator needs operation of ascending a height, and there are security risks.Well head type of attachment has two kinds of forms of flange form and screw-type.Flange form
It needs mutual disassembly, tighten multiple bolts, this need of work operating personnel stand and operated in well head, belong to work of ascending a height
Industry, and the installing and dismounting time is long, great work intensity.Screw-type connection requires height to wellhead equipment to neutrality, needs 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,
The artificial screw thread that tightened in also belongs to operation of ascending a height, and there are security risks.
Utility model content
For the above-mentioned deficiency of the prior art, the utility model provides a kind of well head hydraulic quick connecting device and applies
Work technique, using the device involved by the utility model can with Remote Hydraulic control locking device, without personnel ascend a height observation and
Operation directly can above carry injection head after releasing hydraulic locking, can dismantle well head and complete.When installation, it has automatic centering
And guide function, solve the problems, such as the difficult centering of wellhead equipment.The quick connection that well head can be achieved is provided simultaneously with Remote Hydraulic lock
Tight function improves operating efficiency, reduces operating risk, and lock using mechanical secondary, avoids Field Force's maloperation band
The hidden danger come.
A kind of well head hydraulic quick connecting device of the utility model, it is characterized in that：Coiled tubing wellhead hydraulic quickly connects
Connection device is by upper flange (1), connecting cylinder (2), piston (3), lower flange (4), sealing element (5), (6), (7), (8) and (9), positioning
(10), fixture block (11) composition are sold, sealing element (5), (6), (7), (8) and (9) is installed to corresponding position, and piston (3) is mounted on down
On flange (4), connecting cylinder (2) is threadedly coupled with lower flange (4).It is formed between connecting cylinder (2), piston (3) and lower flange (4)
One sap cavity 2 (22) forms a sap cavity 1 (21), positioning pin (10) and connecting cylinder (2) spiral shell between piston (3) and connecting cylinder (2)
Line connects.Fixture block (11) has the cooperation conical surface with piston (3), when piston (3) moves up, can push fixture block (11) radially-inwardly
It is mobile.
The utility model when coiled tubing wellhead hydraulic Quick Connect Kit is closed, piston (3) be in
The maximum position of upper movement, piston (3) endoporus coordinate with fixture block (11) periphery, and it is right that fixture block (11) is limited in upper flange (1)
It answers in slot, locking upper flange (1), upper flange (1) is fitted close with lower flange (4) conical surface, and end face is fitted close.Positioning pin
(10) it can be fastened on piston (3).
The utility model when coiled tubing wellhead hydraulic Quick Connect Kit in the open state, piston (3) be in
The maximum position of lower movement, fixture block (11) can be freely movable in radial direction, when upper flange (1) moves up, can push away fixture block (11)
It moves to connecting cylinder (2).
The utility model 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 positioning pin (10) retreats to maximum position, in the state that sap cavity 1 (21) is connected to, suppressed to sap cavity 2 (22)
Certain pressure after keeping 10s, checks that piston position indicates, after confirming that piston (3) moves up in place, securing dowel (10) is completed
Coiled tubing wellhead hydraulic Quick Connect Kit connects.
3) it when disassembled, above carries in tool to lubricator, closes main valve or preventer on (gas) tree of recovering the oil and seal closing well entirely, unload
Fall blowout prevention overpressure.All positioning pins (10) are retreated into maximum position, in the state that sap cavity 2 (22) is connected to, 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, precise alignment is not necessarily to, directly upper flange (1) is put into lower flange (4).Repeat step
2, you can complete connection.
Advantage and good effect
The utility model can realize well head prompt disassembly and installation, improve operating efficiency, and Remote Hydraulic locking reduces operation
Risk, mechanical interlocking structure can be realized mechanical secondary locking, avoid the work that live maloperation is brought after hydraulic locking
Industry risk, piston lock position indicating function, ensure piston in place, and hydraulic power interface connects shape using Quick Connect Kit
Formula connects highly effective and safe.
Attached drawing and explanation
Fig. 1 is the main sectional view of the utility model.
Fig. 2 is the sectional view when upper flange and connecting cylinder of the utility model are in discrete state.
Reference numeral：1-upper flange, 2-connecting cylinders, 3-pistons, 4-lower flanges, 5,6,7,8,9-sealing elements,
10-positioning pins, 11-fixture blocks, 21-sap cavities 1,22-sap cavities 2
Specific implementation mode：
1, coiled tubing wellhead hydraulic Quick Connect Kit is by upper flange (1), connecting cylinder (2), piston (3), lower flange
(4), sealing element (5), (6), (7), (8) and (9), positioning pin (10), fixture block (11) composition.
2, sap cavity 2 (22) piston (3) and connecting cylinder (2) are formed between connecting cylinder (2), piston (3) and lower flange (4)
Between form a sap cavity 1 (21).
3, fixture block (11) and piston (3) have the cooperation conical surface, when piston (3) moves up, fixture block (11) can be pushed radial to
Interior movement.
4, upper flange (1) and lower flange (4) cone match.
5, when coiled tubing wellhead hydraulic Quick Connect Kit is closed, piston (3) is in and moves 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.
6, when coiled tubing wellhead hydraulic Quick Connect Kit in the open state, piston (3) is in and moves down
Fixture block (11) when upper flange (1) moves up, can be pushed in connecting cylinder (2), upper flange (1) can be deviate from by maximum position.
7, it dismantles：All positioning pins (10) are retreated into maximum position, in the state that sap cavity 2 (22) is connected to, to sap cavity 1
(21) certain pressure is suppressed, piston (3) is pushed 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) push fixture block (11) to move radially, and fixture block (11) is made to retreat in connecting cylinder (2), upper flange (1) from
Abjection in fixture block (11), completes dismounting, as shown in Figure 2.
8, it assembles：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), constant weight is pushed, 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, suppresses certain pressure from sap cavity 2 (22), push piston (3)
It moves up, piston (3) pushes fixture block (11) to move radially while moving up, and fixture block (11) enters in upper flange (1) groove, lock
Tight upper flange (1).It checks that piston position indicates, after confirming that piston (3) moves up in place, fastens all positioning pins (10) manually, it is real
Existing secondary mechanical locking, prevents live maloperation.
9, 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 positioning pin (10) retreats to maximum position, in the state that sap cavity 1 (21) is connected to, suppressed to sap cavity 2 (22)
Certain pressure after keeping 10s, checks that piston position indicates, after confirming that piston (3) moves up in place, securing dowel (10) is completed
Coiled tubing wellhead hydraulic Quick Connect Kit connects.
3) it when disassembled, above carries in tool to lubricator, closes main valve or preventer on (gas) tree of recovering the oil and seal closing well entirely, unload
Fall blowout prevention overpressure.All positioning pins (10) are retreated into maximum position, in the state that sap cavity 2 (22) is connected to, 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, precise alignment is not necessarily to, directly upper flange (1) is put into lower flange (4).Repeat step
2, you can complete connection.
Claims (3)
1. a kind of well head hydraulic quick connecting device, it is characterized in that：Coiled tubing wellhead hydraulic Quick Connect Kit is by upper method
Orchid, connecting cylinder, piston, lower flange, sealing element, positioning pin, fixture block composition, sealing element and are installed to corresponding position, piston bush is put
On lower flange, connecting cylinder is threadedly coupled with lower flange, between connecting cylinder, piston and lower flange form a sap cavity, piston with
A sap cavity is formed between connecting cylinder, positioning pin is threadedly coupled with connecting cylinder, and fixture block and piston have a cooperation conical surface, and piston is to moving up
When dynamic, fixture block can be pushed to move radially inwardly.
2. a kind of well head hydraulic quick connecting device according to claim 1, it is characterized in that：When coiled tubing wellhead liquid
When pressure Quick Connect Kit is closed, piston is in the maximum position moved up, piston inner hole and fixture block periphery
Cooperation, fixture block are limited in upper flange corresponding groove, lock upper flange, and upper flange is fitted close with the lower flange conical surface, and end face is tight
Close fit, positioning pin can be fastened on piston.
3. a kind of well head hydraulic quick connecting device according to claim 1, it is characterized in that：When coiled tubing wellhead liquid
Press Quick Connect Kit in the open state, piston is in the maximum position moved down, and fixture block can be free in radial direction
Fixture block when upper flange moves up, can be pushed in connecting cylinder by activity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272392.2U CN207739969U (en) | 2017-09-29 | 2017-09-29 | A kind of well head hydraulic quick connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721272392.2U CN207739969U (en) | 2017-09-29 | 2017-09-29 | A kind of well head hydraulic quick connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207739969U true CN207739969U (en) | 2018-08-17 |
Family
ID=63114078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721272392.2U Active CN207739969U (en) | 2017-09-29 | 2017-09-29 | A kind of well head hydraulic quick connecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207739969U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529582A (en) * | 2017-09-29 | 2018-01-02 | 杰瑞能源服务有限公司 | A kind of well head hydraulic quick connecting device and construction technology |
| CN110159220A (en) * | 2019-07-01 | 2019-08-23 | 承德市开发区富泉石油机械有限公司 | Petroleum industry wellhead equipment Quick Connect Kit |
-
2017
- 2017-09-29 CN CN201721272392.2U patent/CN207739969U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529582A (en) * | 2017-09-29 | 2018-01-02 | 杰瑞能源服务有限公司 | A kind of well head hydraulic quick connecting device and construction technology |
| CN110159220A (en) * | 2019-07-01 | 2019-08-23 | 承德市开发区富泉石油机械有限公司 | Petroleum industry wellhead equipment Quick Connect Kit |
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