CN203702126U - Manifold system for ground tests of high-pressure gas well - Google Patents
Manifold system for ground tests of high-pressure gas well Download PDFInfo
- Publication number
- CN203702126U CN203702126U CN201320749261.4U CN201320749261U CN203702126U CN 203702126 U CN203702126 U CN 203702126U CN 201320749261 U CN201320749261 U CN 201320749261U CN 203702126 U CN203702126 U CN 203702126U
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- gas well
- pressure gas
- testing
- pressure
- manifold system
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- 238000012360 testing method Methods 0.000 title claims abstract description 93
- 238000010276 construction Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000011076 safety test Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 20
- 230000003628 erosive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 208000001953 Hypotension Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036543 hypotension Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
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Abstract
The utility model provides a manifold system for ground tests of a high-pressure gas well. The manifold system is a testing tree which is arranged at the well mouth of the high-pressure gas well, and comprises multiple stages of testing manifolds connected with each other in series; a blowout opening is formed in the tail end of the testing tree; the testing manifolds extend, and are connected in parallel through flanged crosses arranged at the front ends of pipelines, so that the testing tree diverges in an umbrella-shaped manner from a well mouth end to a blowout opening end; a hand-operated plate valve is arranged on the flanged cross of each pipeline. The manifold system has the functions of hierarchical throttling and pressure drop controlling, so that the test is realized through dropping the pressure stepwise, and safety test requirements of the high-pressure gas well are met; meanwhile, according to the working condition and the construction requirements of a well site, the manifold system can choose the optimal throttling and pressure-controlling combination for testing the manifolds, reduce the on-site workload, and provide guarantee for liquid-draining tests, pressure controlling for production measurement, and safety operation for the high-pressure gas well, so that safety risks in ground liquid draining and ground tests are lowered, and the testing efficiency is increased.
Description
Technical field
The utility model relates to Oil/gas Well test construction field, specifically a kind of ground test manifold system of controlling choke pressure drop while producing of asking for discharge opeing.
Background technology
After high-pressure gas well reservoir reconstruction, need to carry out discharge opeing and production test operation, to obtain the preliminary data of gas well, to try to achieve the output after reservoir is pressed after calculating.For ensureing the job safety of discharge opeing and production test, choke pressure control technology in conjunction with high-pressure gas well, for the test of high-pressure gas well, need to adopt resistance oil nozzle sleeve and interior oil nozzle, the plug etc. of one-level, secondary and three grades of test manifolds of ground test manifold system to carry out controlled hypotension, discharge opeing step by step.Taking test manifold, resistance oil nozzle sleeve as core realizes the choke pressure drop control to well head pressure, ensure and press rear discharge opeing and production test to carry out smoothly.
Carry out in test process at high-pressure gas well, for well head high pressure in the time there is thorn erosion in part pipeline or oil nozzle, can open other pipelines and continue discharge opeings and close to damage pipeline control flat gate valve and rectify and improve, realize high-pressure gas well safety test.In earlier stage conventional gas well ground test manifold system, in the time that the erosion of pipeline thorn appears in discharge opeing, can only be rectified and improved rear continuation discharge opeing by closing well, is unfavorable for the row of returning as early as possible of liquid in well and is detained liquid and increases the weight of reservoir pollution, has affected the output of natural gas.
Summary of the invention
The purpose of this utility model is to provide a kind of high-pressure gas well ground test manifold system, and the throttling pressure control problem in product is asked in the discharge opeing that effectively solves high-pressure gas well.
The technical scheme that the utility model adopts is:
A kind of high-pressure gas well ground test manifold system, is arranged on well head, is connected in series the testing tree forming by multistage test manifold, and the end of testing tree arranges spout; The flanged cross that described test manifold arranges by pipeline front end is expanded parallel connection, testing tree is dispersed by uphole end to spout end umbrella, on the flanged cross of every pipeline, is provided with manual flat valve.
On the flanged cross front end pipeline of described first order test manifold, be provided with hydraulic control flap type.
On the pipeline at described flanged cross rear, be socketed with resistance oil nozzle sleeve, resistance oil nozzle sleeve inside is provided with oil nozzle and seal plug.
The beneficial effect that the utility model produces is:
The utlity model has the function of classification throttling, control pressure drop, can realize test step pressure reducing, meet high-pressure gas well safety test requirement, simultaneously can be according to well site operating mode and construction requirement, choose best throttling pressure control combined test manifold, reduce site work amount, for high-pressure gas well is tested discharge opeing, asked product pressure control and safety work that guarantee is provided, the security risk that has reduced ground discharge opeing and test, has improved testing efficiency.
Compared with prior art, the utlity model has following advantage:
(1) there is reducing pressure by regulating flow function step by step, can steadily reduce well head pressure, met the steady step-down requirement of high-pressure gas well, effectively avoided affecting discharge opeing because the excessive formation ice of choke pressure drop is stifled, asking product.
(2) discharge opeing and asking in product process after pressure, if meet manifold gate valve etc. while occurring that thorn erosion or abnormal conditions occur, without closing well, can damage passage by fluid control valve quick closedown, opens other passages of manifold simultaneously and guarantees that discharge opeing continues to carry out.
(3) can be according to Gas Reservoirs pressure size, the port number in flexible configuration ground test manifold progression and manifold at different levels.
(4), in test process, the serious thing of oil nozzle thorn erosion, can open resistance oil nozzle sleeve quickly and easily to complete the replacing of oil nozzle.
(5) can, according to well site operating mode and ground condition, the putting position of manifolds at different levels be set flexibly.
(6) every group of manifold adopts flap type that four-way series connection is separated by, and according to reality, shunting needs to select flexibly corresponding manifold passage.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is further described
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the local structural representation amplifying of the A of Fig. 1.
Code name in figure: 1-oil pipe, 2-oil pipe cover annular space, 3-high pressure line, 4-hydraulic control flap type, 5-flanged cross, 6-manual flat valve, 7-resistance oil nozzle sleeve, 8-oil nozzle, 9-plug; E-well head, L-one-level test manifold, M-secondary test manifold, tri-grades of test manifolds of N-, F-spout.
Detailed description of the invention
As shown in Figure 1, 2, the utility model is a kind of high-pressure gas well ground test manifold system, is arranged on well head E, is connected in series the testing tree forming by multistage test manifold, and the end of testing tree arranges spout F.Test manifolds at different levels by the flanged cross 5 of every pipeline front end setting expand successively in parallel, make testing tree hold to spout F end umbrella and disperse by well head E.On every pipeline in test manifolds at different levels, be provided with the parts such as manual flat valve 6 and/or hydraulic control flap type 4, resistance oil nozzle sleeve 7, oil nozzle 8.Concrete:
On the flanged cross 5 front end pipelines of the first order test manifold L being connected with well head E, be provided with hydraulic control flap type 4.On the flanged cross 5 of every pipeline in every grade of test manifold, be provided with manual flat valve 6.Flanged cross 5 rears, be transmitted on the pipeline of subordinate and be connected with resistance oil nozzle sleeve 7, resistance oil nozzle sleeve 7 inside are provided with oil nozzle 8 and seal plug 9, resistance oil nozzle sleeve 7 and inner oil nozzle 8 thereof, plug 9 are reducing pressure by regulating flow system step by step, realize choke pressure drop size control function by changing different size oil nozzle 8.
In this detailed description of the invention, high-pressure gas well ground test manifold system is the testing tree with the test manifold (one-level test manifold L, secondary test manifold M, three grades of test manifold N) of three grades.Herein, the progression of high-pressure gas well ground test manifold system also can expand and reduce according to actual conditions.Specific as follows:
Oil pipe 1, oil pipe cover annular space 2 on well head E christmas tree are connected to one-level test manifold L by 2 high pressure lines 3 respectively, and one-level test manifold L has 4 pipelines.4 pipeline front ends of one-level test manifold L are provided with hydraulic control flap type 4, and hydraulic control flap type 4 is arranged on the rear of oil pipe 1 and oil pipe cover annular space 2, regulates the intrasystem flow of test manifold and pressure at first.The pipeline of 4 one-level test manifold L, be connected with flanged cross 5 at hydraulic control flap type 4 rears, flanged cross 5 connects, makes flow that high pressure line 3 sends and pressure in this shunting, step-down mutually.On flanged cross 5, be provided with manual flat valve 6, for regulating flow and the pressure of one-level test manifold L.Flanged cross 5 rears of one-level test manifold L, be transmitted on the pipeline of subordinate and be connected with resistance oil nozzle sleeve 7, resistance oil nozzle sleeve 7 inside are provided with oil nozzle 8 and seal plug 9.If broken down and problem on one-level test manifold L, can close in time this defective pipe by seal plug 9, this,, for the traditional mechanism of ground test tree, is just not repeated.Herein, flanged cross 5 can be parallel with one another, and the pipeline quantity of one-level test manifold L can expand and reduce according to actual conditions.
One group between two of the pipeline of 4 one-level test manifold L, be divided into two groups, the end of every group of pipeline is connected with the pipeline of 3 secondary test manifold M by 3 flanged cross 5, make 6 secondary test pipelines be divided into two groups, be respectively secondary test manifold M1 and secondary test manifold M2.On flanged cross 5, be provided with manual flat valve 6, flanged cross 5 rears, be transmitted on the pipeline of subordinate and be connected with resistance oil nozzle sleeve 7, resistance oil nozzle sleeve 7 inside are provided with oil nozzle 8 and seal plug 9.Herein, flanged cross 5 can be parallel with one another, and the pipeline quantity of secondary test manifold M can expand and reduce according to actual conditions.
The end of every group of secondary test manifold M1 and M2 is connected with again the pipeline of 4 three grades of test manifold N by 4 flanged cross 5, make 8 three grades test pipelines be divided into two groups, is respectively three grades of test manifold N1 and N2.On flanged cross 5, be provided with manual flat valve 6, flanged cross 5 rears, be transmitted on the pipeline of subordinate and be connected with resistance oil nozzle sleeve 7, resistance oil nozzle sleeve 7 inside are provided with oil nozzle 8 and seal plug 9.Herein, flanged cross 5 can be parallel with one another, and the pipeline quantity of three grades of test manifold N can expand and reduce according to actual conditions.
The pipeline end of 8 three grades of test manifold N is connected in parallel, arranges spout F.
Using method of the present utility model is as follows:
High-pressure gas well, driving a well before test, should, according to designing the oil nozzle 8 that suitable dimension is installed in advance in resistance oil nozzle sleeve 7, be assembled above-mentioned all parts.When test, according to principle outer after in first, open step by step successively the control gate valve (hydraulic control flap type 4 and manual flat valve 6) of test manifolds at different levels, by opening or closing, hydraulic control flap type 4, manual flat valve 6 combinations of one-level to three grade test manifold realize wall scroll, many pipelines are opened or close and carry out open flow discharge opeing and ask product.Realize controlled hypotension step by step by oil nozzle 8 and plug 9, avoid choke pressure drop excessively to cause ice stifled to affect discharge opeing, ask product.
Claims (3)
1. a high-pressure gas well ground test manifold system, is arranged on well head, is connected in series the testing tree forming by multistage test manifold, and the end of testing tree arranges spout; It is characterized in that: the flanged cross that described test manifold arranges by pipeline front end is expanded parallel connection, testing tree is dispersed by uphole end to spout end umbrella, on the flanged cross of every pipeline, is provided with manual flat valve.
2. high-pressure gas well ground test manifold system according to claim 1, is characterized in that: in described test manifold, be provided with hydraulic control flap type on the flanged cross front end pipeline of first order test manifold.
3. high-pressure gas well ground test manifold system according to claim 1, is characterized in that: on the pipeline at described flanged cross rear, be socketed with resistance oil nozzle sleeve, resistance oil nozzle sleeve inside is provided with oil nozzle and seal plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749261.4U CN203702126U (en) | 2013-11-25 | 2013-11-25 | Manifold system for ground tests of high-pressure gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749261.4U CN203702126U (en) | 2013-11-25 | 2013-11-25 | Manifold system for ground tests of high-pressure gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702126U true CN203702126U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320749261.4U Expired - Lifetime CN203702126U (en) | 2013-11-25 | 2013-11-25 | Manifold system for ground tests of high-pressure gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702126U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988741A (en) * | 2017-02-22 | 2017-07-28 | 中国石油化工股份有限公司 | A kind of sour gas well gas testing production test unit |
| CN112983350A (en) * | 2021-04-14 | 2021-06-18 | 盐城佰信石油机械有限公司 | Wellhead back pressure regulation and control method and device |
-
2013
- 2013-11-25 CN CN201320749261.4U patent/CN203702126U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988741A (en) * | 2017-02-22 | 2017-07-28 | 中国石油化工股份有限公司 | A kind of sour gas well gas testing production test unit |
| CN112983350A (en) * | 2021-04-14 | 2021-06-18 | 盐城佰信石油机械有限公司 | Wellhead back pressure regulation and control method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151124 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: Sinopec Southwest Petroleum Engineering Co.,Ltd. Address before: 100027 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: Sinopec Southwest Petroleum Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210824 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: Sinopec Southwest Petroleum Engineering Co.,Ltd. Address before: 12 / F, No. 6, Huixin a, Chaoyang District, Beijing 100029 Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: Sinopec Southwest Petroleum Engineering Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |