CN208564514U - A kind of system of release oil pipe and the annular pressure in production casing - Google Patents
A kind of system of release oil pipe and the annular pressure in production casing Download PDFInfo
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- CN208564514U CN208564514U CN201821209668.7U CN201821209668U CN208564514U CN 208564514 U CN208564514 U CN 208564514U CN 201821209668 U CN201821209668 U CN 201821209668U CN 208564514 U CN208564514 U CN 208564514U
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- annular pressure
- oil pipe
- valve
- hard tube
- production casing
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Abstract
The utility model belongs to petroleum works technical field, discloses the system of a kind of release oil pipe and the annular pressure in production casing.The system of annular pressure in release oil pipe and the production casing includes production platform, the production platform includes four-way and the flutter valve positioned at the four-way two sides, oil pipe is equipped in the four-way, one of them described flutter valve is connected with hard tube, closed tank platoon and torch in turn outward, is additionally provided with needle-valve between the flutter valve and the hard tube.The utility model is by connection hard tube to closed tank platoon, and after gas-liquid of releasing enters closed tank platoon separation, gas realizes the annular pressure that can release under air-tight state by torch burning, efficiently solves the problems, such as fuel gas emptying and thus bring security risk；By controlling the aperture of needle-valve, the speed that adjustment annular pressure is released, until releasing annular pressure to expected effect.
Description
Technical field
The utility model relates to the annular spaces in petroleum works technical field more particularly to a kind of release oil pipe and production casing
The system of pressure.
Background technique
It is empty that offshore oil and gas producing well will form closed annular between the casing of different levels, between casing and oil pipe
Between, this annular space is filled with the drilling fluid or completion fluid of remaining.After operation, due to the fluid meeting of deep formation output
Entire pit shaft to be heated, the fluid temperature of the aerial remaining of closed loop is caused to increase, temperature raising causes liquid volume to expand, into
And abnormal high pressure can be generated in the air in closed loop, this pressure is referred to as closed annular pressure.
The technique of traditional release oil pipe and production casing annular pressure usually connects hose extremely by oil pipe four-way flutter valve
Platform outboard, directly emptying discharge.But the mode of such annular pressure of releasing, risk are very high.On the one hand during releasing,
Due to using oil pipe four-way flutter valve to control drawoff discharge, speed of releasing is not easy to control, is easy to appear moment and quickly releases and lead to ring
Pneumatics power excitement, has an impact the downhole tools such as production packer；On the other hand due to being directly vented discharge, it be easy to cause day
Right gas is gathered in bleed outlet near zone, may cause the alarm of production system gas leakage or production shutdown, if nearby having
Hot job industry easily causes to burn or explode, and security risk is very high.
It would therefore be highly desirable to need the system of a kind of novel release oil pipe and the annular pressure in production casing above-mentioned to solve
Problem.
Utility model content
The purpose of this utility model is to provide the systems of the annular pressure in a kind of release oil pipe and production casing, with solution
Certainly the release technique speed that there is a problem of releasing of oil pipe and production casing annular pressure of tradition is difficult to control and security risk is high.
For this purpose, the utility model uses following technical scheme:
A kind of system of release oil pipe and the annular pressure in production casing, including production platform, the production platform packet
Four-way and the flutter valve positioned at the four-way two sides are included, is equipped with oil pipe in the four-way, one of them described flutter valve successively connects outward
It is connected to hard tube, closed tank platoon and torch, is additionally provided with needle-valve between the flutter valve and the hard tube.
Preferably, the production platform further includes main valve, the main valve is connect with the oil pipe.
Preferably, the hard tube is made of stainless steel.
Preferably, the both ends of the hard tube pass through metal buckle and the closed tank platoon respectively and the flutter valve is clamped.
Preferably, the caliber of the hard tube is 1/4 "~1/2 ".
The utility model has the beneficial effects that
The utility model is by connection hard tube to closed tank platoon, and after gas-liquid of releasing enters closed tank platoon separation, gas passes through torch
Burning, realizes the annular pressure that can release under air-tight state, efficiently solves the problems, such as fuel gas emptying and thus band
The security risk come；By controlling the aperture of needle-valve, the speed that adjustment annular pressure is released, until releasing annular pressure to pre-
The effect of phase.
The caliber of hard tube is 1/4 "~1/2 ", and is combined with the aperture of control needle-valve, can more effectively control and release
Speed, and more efficiently solve the problems, such as annular pressure excitement.
Detailed description of the invention
Fig. 1 is the structural representation of the system of the annular pressure in release oil pipe and production casing provided by the utility model
Figure.
In figure:
1, production platform；11, main valve；12, flutter valve；13, four-way；
2, needle-valve；3, hard tube；4, closed tank platoon；5, torch.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, the system of the annular pressure in a kind of release oil pipe and production casing provided by the utility model, packet
Include production platform 1, in which:
Production platform 1 includes four-way 13 and the flutter valve 12 positioned at 13 two sides of four-way, is equipped with oil pipe in four-way 13 and (does not show in figure
Out), one of flutter valve 12 is connected with hard tube 3, closed tank platoon 4 and torch 5 in turn outward, specifically, in 1/2 " NPT of flutter valve 12
By connection hard tube 3 to closed tank platoon 4 at (National Pipe Thread, U.S.'s thread standard) hole so that release gas-liquid into
After entering closed tank platoon separation, gas is burnt by torch 5, is realized the annular pressure that can release under air-tight state, is efficiently solved
The problem of fuel gas emptying and thus bring security risk.
Needle-valve 2 is additionally provided between flutter valve 12 and hard tube 3, by controlling the aperture of needle-valve 2, the speed that adjustment annular pressure is released
Degree, until releasing annular pressure to expected effect.Further, the caliber of hard tube 3 is 1/4 "~1/2 ", preferably, firmly
The caliber of pipe 3 is 3/8 ", the caliber by suitably reducing hard tube 3 is combined with the aperture of control needle-valve 2, can more efficiently be controlled
Speed of releasing is made, and more efficiently solves the problems, such as annular pressure excitement.
Specifically, production platform 1 further includes main valve 11, and main valve 11 is connect with oil pipe, to control the oil gas benefit of production platform
With.
Specifically, hard tube 3 is made of stainless steel, it is to be understood that hard tube 3 can also be made of other materials, preferably
, hard tube 3 is made of 316L stainless steel, to guarantee that it can anti-internal pressure 70Mpa.
Specifically, the both ends of hard tube 3 pass through metal buckle and closed tank platoon 4 respectively and flutter valve 12 is clamped, in this specific implementation
In mode, which preferably uses the Swagelok of metal sealing to detain (or Swagelok connector), to guarantee that it can resist
70Mpa pressure.Particularly, needle-valve 2 also uses 70Mpa pressure rating, thus can guarantee the process leakproofness for annular pressure of releasing
Energy.
When releasing annular pressure, needle-valve 2 is in close state first, then the flutter valve of 13 two sides of standard-sized sheet oil pipe four-way
12, the speed released at this time by the aperture of control needle-valve 2, adjustment annular pressure, until releasing annular pressure to expected
Effect.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For the ordinary skill user of fields, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (5)
1. the system of the annular pressure in a kind of release oil pipe and production casing, including production platform (1), the production platform
(1) include four-way (13) and the flutter valve (12) for being located at the four-way (13) two sides, be equipped with oil pipe, feature in the four-way (13)
It is, one of them described flutter valve (12) is connected with hard tube (3), closed tank platoon (4) and torch (5), the flutter valve in turn outward
(12) it is additionally provided between the hard tube (3) needle-valve (2).
2. the system of the annular pressure in release oil pipe and production casing according to claim 1, which is characterized in that described
Production platform (1) further includes main valve (11), and the main valve (11) connect with the oil pipe.
3. the system of the annular pressure in release oil pipe and production casing according to claim 1, which is characterized in that described
Hard tube (3) is made of stainless steel.
4. the system of the annular pressure in release oil pipe and production casing according to claim 1, which is characterized in that described
The both ends of hard tube (3) pass through metal buckle and the closed tank platoon (4) respectively and the flutter valve (12) is clamped.
5. the system of the annular pressure in release oil pipe and production casing according to any one of claims 1 to 4, special
Sign is that the caliber of the hard tube (3) is 1/4 "~1/2 ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821209668.7U CN208564514U (en) | 2018-07-27 | 2018-07-27 | A kind of system of release oil pipe and the annular pressure in production casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821209668.7U CN208564514U (en) | 2018-07-27 | 2018-07-27 | A kind of system of release oil pipe and the annular pressure in production casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208564514U true CN208564514U (en) | 2019-03-01 |
Family
ID=65448635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821209668.7U Active CN208564514U (en) | 2018-07-27 | 2018-07-27 | A kind of system of release oil pipe and the annular pressure in production casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208564514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320232A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Heating control device for gas well annular pressure relief pipeline |
-
2018
- 2018-07-27 CN CN201821209668.7U patent/CN208564514U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320232A (en) * | 2020-09-30 | 2022-04-12 | 中国石油天然气股份有限公司 | Heating control device for gas well annular pressure relief pipeline |
| CN114320232B (en) * | 2020-09-30 | 2024-03-26 | 中国石油天然气股份有限公司 | Heating control device for annular pressure relief pipeline of gas well |
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