CN102798507A - Testing device and testing method for tightness of underground salt cavern gas storage - Google Patents

Testing device and testing method for tightness of underground salt cavern gas storage Download PDF

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Publication number
CN102798507A
CN102798507A CN2012102329635A CN201210232963A CN102798507A CN 102798507 A CN102798507 A CN 102798507A CN 2012102329635 A CN2012102329635 A CN 2012102329635A CN 201210232963 A CN201210232963 A CN 201210232963A CN 102798507 A CN102798507 A CN 102798507A
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China
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container
reserved storeroom
operation valve
hole air
air reserved
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CN2012102329635A
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CN102798507B (en
Inventor
闫怡飞
王同涛
闫相祯
杨秀娟
姜婷婷
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China University of Petroleum East China
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China University of Petroleum East China
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Abstract

The invention belongs to the field of the development of oil gas resources, and particularly relates to a testing device and a testing method for the tightness of an underground salt cavern gas storage. The testing device comprises a container, a bracket and flexible pipe, wherein an external convex connector is arranged at the bottom of the container and is provided with a flow control valve. The container is positioned on a bracket tray, and the convex connector at the bottom of the container passes through a through hole in the tray; and the flow control valve is installed on the convex connector. Scale lines are arranged on the container and are used for measuring the change of the liquid level; and the external convex connector is connected with a first control valve of the underground salt cavern gas storage by the flexible pipe, so that the pressure change of brine in an injection-production tubular column can be detected. The bracket is provided with three legs which are distributed uniformly and can independently contract. The implementation method comprises the steps of: injecting the brine; mounting a sealing cover, the control valve and a pressure gage; mounting the bracket and the container; and measuring the tightness. The testing device provided by the invention has the advantages that the construction is simple, the implementation steps are concise, and the field operation is easily realized.

Description

Underground salt hole air reserved storeroom tightness measuring device and method of testing
Technical field
The invention belongs to the hydrocarbon resources development field, particularly, relate to a kind of underground salt hole air reserved storeroom tightness measuring device and implementation step.
Background technology
The sealing of salt hole air reserved storeroom is to weigh one of salt hole air reserved storeroom important indicator safe in utilization.Mainly containing API standard method, Geostock method and patent publication No. for the salt hole air reserved storeroom method for conducting leak test at present is that CN100514018A, denomination of invention are: the method in the salt hole air reserved storeroom sealing pressure-measuring method, find that through analyzing mainly there is following shortcoming in above method with on-the-spot the use:
(1), API method shortcoming: gas injection rate is big, need special interface level measurement instrument, and evaluation result is inaccurate, and reliability is relatively poor.
(2), Geostock method shortcoming: the test duration is long, and cost is high; Testing tool requires high, on-the-spot poor operability.
(3), patent publication No. is a disclosed method in the document of CN100514018A: operating process is loaded down with trivial details, cost is high, during on-the-spot the use workman's technical merit is had relatively high expectations.
In sum, more than three kinds of methods all have the place that can improve and improve in salt hole air reserved storeroom performing leak test method, could better satisfy needs of production.
Summary of the invention
For overcoming the defective of prior art, the object of the present invention is to provide a kind of underground salt hole air reserved storeroom tightness measuring device and method of testing, to solve a difficult problem that exists in the salt hole air reserved storeroom performing leak test.
Technical scheme of the present invention is following:
A kind of underground salt hole air reserved storeroom tightness measuring device, comprising: container, support, flexible pipe, container bottom are provided with the evagination interface; It is characterized in that: container is provided with scale mark, and the protrusion interface is connected with first operation valve of underground salt hole air reserved storeroom through flexible pipe, detects the sealing of salt cave and injection-production column jacket.
Preferably, container is positioned on the bracket tray, and container bottom protrusion interface is through the circular hole that runs through on the pallet; On the protrusion interface flowrate control valve is installed.
Preferably, container is the cylinder that transparent material is made, and highly for 2m, overall diameter are that 25cm, interior diameter are 20cm, measuring accuracy is 1cm.
Preferably, but container upper end has the top cover of a folding, has air hole on the top cover, keeps container inner pressure identical with atmospheric pressure.
Preferably, pallet is arranged on the support, pallet is processed for circular, metal, and diameter is that 30cm, thickness are 1cm, and it is the circular hole that runs through of 5cm that the pallet center position has diameter; On the pallet height direction railing is arranged, railing is connected with tray edge, and rail height is 50cm.
Preferably, support has three legs, evenly distributes; Every leg all has independent telescope property, can regulate leg progress row through the bolt on the leg; The rack leg bottom is cone-shaped, and maximum can be inserted 20cm under the face of land.
Preferably, the support minimum constructive height is 0.8m, and the maximum length that rack leg can shrink is 30cm.
A kind of underground salt hole air reserved storeroom performing leak test method is characterized in that may further comprise the steps:
(1), make after the chamber accomplishes, in the salt cave, inject bittern through injection-production column jacket, until pithead position at salt hole air reserved storeroom; In the annular space of injection-production column jacket and completion tubular column, inject bittern to pithead position; Left standstill 24 hours;
(2), first operation valve, second operation valve and first tensimeter are installed, at the injection-production column jacket pithead position and the retentive control valve be in and close; First operation valve is used to control the connectedness between container and salt cave, and second operation valve and first tensimeter are used for bittern pressure variation in monitoring and control injection-production column jacket and the salt cave; The 3rd operation valve and second tensimeter are installed by annular space pithead position place at injection-production column jacket and completion tubular column, are used for bittern pressure variation in monitoring and the control annular space;
(3), support is placed on the ground, pithead position place, make pallet and ground level level through adjustment leg length; Container is placed on the bracket tray, makes container bottom protrusion interface through the circular hole that runs through on the bracket tray, through pipe fitting container bottom is protruded interface and is connected with first operation valve; In container, inject bittern to container height 4/5 position;
(4), open flowrate control valve, first operation valve, connection container and salt cave; The monitoring level change, and note the level change data.
Preferably, the test duration is no less than 24 hours, and is every at a distance from liquid level of 0.5 hour record.
Preferably, bittern is saturated brine; When video data in the tensimeter is big, can discharge bittern, to guarantee the safety of proving installation through operation valve; In the test process, support and container and ground level keeping parallelism.
The present invention is applicable to many interlayers salt hole air reserved storeroom and salt dome type salt hole air reserved storeroom; The proving installation simple structure, cheap, reliability is high; The practical implementation step is succinct, be easy to execute-in-place, workman's technical merit is required low, helps on-the-spotly promoting and using.
Description of drawings
Fig. 1 is a kind of underground salt hole air reserved storeroom tightness measuring device synoptic diagram;
Fig. 2 is the structure of container synoptic diagram;
Fig. 3 is the supporting structure synoptic diagram;
Fig. 4 is a kind of underground salt hole air reserved storeroom tightness measuring device practical implementation synoptic diagram;
Among the figure: 1, ground, 2, cement mantle, 3, completion tubular column, 4, annular space, 5, injection-production column jacket, 6, packer; 7, slips, 8, the salt cave, 90, top cover, 91, bittern, 92, container, 93, support; 94, railing, 95, pallet, 96, rack leg, 97, bolt, 98, air hole; 99, protrusion interface, 910, flow control valve, 911, flexible pipe, 101, first operation valve, 102, first gland bonnet; 103, second tensimeter, the 104, the 3rd operation valve, 105, first tensimeter, 106, second operation valve, 107, second gland bonnet.
Embodiment
To shown in Figure 4, a kind of underground salt hole air reserved storeroom tightness measuring device comprises: container 92, support 93, flexible pipe 911, container bottom is provided with evagination interface 99 like Fig. 1.The evagination interface is connected with first operation valve 101 in salt cave 8 through flexible pipe, and the bittern pressure that detects in the injection-production column jacket 5 changes.Container is placed on the pallet 95 above the support 93, and the protrusion interface passes through from the middle circular hole of pallet.
As shown in Figure 2, on the container bottom protrusion interface flow control valve 910 is installed, be used for Control Flow; Container top have one can folding top cover 90, have air hole 98 to be used to keep container inner pressure identical on the top cover with atmospheric pressure; Flexible pipe is connected with the protrusion interface of container bottom; Fill bittern 90 in the container; Container is the cylinder that transparent material is made, and container height is that 2m, overall diameter are that 25cm, interior diameter are 20cm, and measuring accuracy is 1cm.
As shown in Figure 3, support has three rack legs 96, evenly distributes, and on every rack leg the length that bolt 97 can independently be adjusted every rack leg is installed; The rack leg bottom is cone-shaped, and maximum can be inserted 20cm under the face of land; The support minimum constructive height is 0.8m, and the maximum length that rack leg can shrink is 30cm.Pallet 95 is installed on the support, and pallet is processed for circular, metal, and diameter is 30cm, and thickness is 1cm, and it is the circular hole that runs through of 5cm that the pallet center position has diameter; Railing 94 is arranged on the pallet height direction, and railing is connected with tray edge, and rail height is 50cm.
As shown in Figure 4, first gland bonnet 102 is installed in injection-production column jacket 5 pithead position places, seals whole injection-production column jacket; Second gland bonnet 107 is installed in the pithead position place of injection-production column jacket and 3 annular spaces of completion tubular column, seals whole annular space 4.First operation valve 101 is installed on first gland bonnet, is used to control the connectedness in container and salt cave; Second operation valve 106 and first tensimeter 105 also are installed on first gland bonnet, are used to monitor bittern pressure variation in the injection-production column jacket; When bittern pressure is higher, close first operation valve, open second operation valve, discharge bittern, guarantee device safety.The 3rd operation valve 104 and second tensimeter 103 are installed on second gland bonnet, are used to monitor bittern pressure variation in the annular space between completion tubular column and injection-production column jacket, when bittern pressure is higher, open the 3rd operation valve, discharge bittern, guarantee device safety.
Completion tubular column is deep into from ground 1 the salt cave 8 and with top, salt cave and links to each other, and the completion tubular column external diameter is that 244.5mm, wall thickness 10.03mm, grade of steel N80, threaded connector are inclined to one side trapezoid buckle; Completion tubular column adopts G level oil well cement, silica sand processes grout with external additive and formation cementation is in the same place, cement mantle 2 average thickness 3cm; The injection-production column jacket external diameter is that 177.8mm, wall thickness are that 9.19mm, grade of steel are that N80, threaded connector are inclined to one side trapezoid buckle; Be positioned at completion tubular column and with the completion tubular column dead in line, adopt the special-purpose packer 6 of salt hole air reserved storeroom to link together with slips 7 in completion tubular column bottom.
Fig. 1 is following to underground salt hole air reserved storeroom performing leak test implementation process shown in Figure 4:
(1), make after the chamber accomplishes, to the salt cave, inject saturated bittern from injection-production column jacket, until pithead position at salt hole air reserved storeroom; In the bittern injection process, inject bittern in strict accordance with making the injection rate that designs in the process of chamber; Simultaneously, in completion tubular column and injection-production column jacket annular space, inject bittern, until the pithead position place; Left standstill 24 hours.
(2), after bittern inject to accomplish, first gland bonnet is installed at the place at the injection-production column jacket pithead position, and whole injection-production column jacket is sealed up; Second operation valve and first tensimeter are installed on first gland bonnet, are used for bittern pressure variation in monitoring and the control injection-production column jacket; Simultaneously, first operation valve is installed also on first gland bonnet, is used to control the annular space between container and salt cave, first operation valve state that keeps shut; The 3rd operation valve and second tensimeter are installed by annular space pithead position place at injection-production column jacket and completion tubular column, are used for bittern pressure variation in monitoring and the control annular space.
(3), support is placed on the ground at pithead position place, container is placed on the pallet of support, and container bottom is protruded interface passes the pallet center hole; The flexible pipe that adopts pvc material to process protrudes interface with container bottom and is connected with first operation valve, and assurance is connected firmly, reliably, close flow control valve; In container, inject saturated bittern to scale 1.8m position; Long through bolt adjustment rack leg, keep pallet, container and ground level level in the whole test process.
(4), open flow control valve, first operation valve, connection container and salt cave; Whenever at a distance from level change position of 30 minutes records, continuous recording 36 hours.
In the whole test process, bittern pressure can bear in the pressure limit at equipment all the time in injection-production column jacket and the annular space, does not open second, third operation valve and discharges bittern.
Through 36 hours test, liquid level dropped to 0.95m from 1.8m in the container, liquid level reduce highly be 0.85m less than 1m, so think that this salt hole air reserved storeroom sealing meets design requirement.

Claims (10)

1. underground salt hole air reserved storeroom tightness measuring device, comprising: container, support, flexible pipe, container bottom are provided with the evagination interface; It is characterized in that: container is provided with scale mark, and the protrusion interface is connected with first operation valve of underground salt hole air reserved storeroom through flexible pipe, detects the sealing of salt cave and injection-production column jacket.
2. a kind of underground salt hole air reserved storeroom tightness measuring device according to claim 1, it is characterized in that: container is positioned on the bracket tray, and container bottom protrusion interface is through the circular hole that runs through on the pallet; On the protrusion interface flowrate control valve is installed.
3. according to the described underground salt hole air reserved storeroom tightness measuring device of claim 1-2, it is characterized in that: container is the cylinder that transparent material is made, and highly for 2m, overall diameter are that 25cm, interior diameter are 20cm, measuring accuracy is 1cm.
4. according to the described underground salt hole air reserved storeroom tightness measuring device of claim 1-3, it is characterized in that: but container upper end has the top cover of a folding, has air hole on the top cover, keeps container inner pressure identical with atmospheric pressure.
5. according to the described a kind of underground salt hole air reserved storeroom tightness measuring device of claim 1-4; It is characterized in that: pallet is arranged on the support; Pallet is processed for circular, metal, and diameter is that 30cm, thickness are 1cm, and it is the circular hole that runs through of 5cm that the pallet center position has diameter; On the pallet height direction railing is arranged, railing is connected with tray edge, and rail height is 50cm.
6. according to the described underground salt hole air reserved storeroom tightness measuring device of claim 1-5, it is characterized in that: support has three legs, evenly distributes; Every leg all has independent telescope property, can regulate leg progress row through the bolt on the leg; The rack leg bottom is cone-shaped, and maximum can be inserted 20cm under the face of land.
7. according to the described underground salt hole air reserved storeroom tightness measuring device of claim 1-6, it is characterized in that: the support minimum constructive height is 0.8m, and the maximum length that rack leg can shrink is 30cm.
8. underground salt hole air reserved storeroom performing leak test method adopts the proving installation of claim 1-7, it is characterized in that may further comprise the steps:
(1), make after the chamber accomplishes, in the salt cave, inject bittern through injection-production column jacket, until pithead position at salt hole air reserved storeroom; In the annular space of injection-production column jacket and completion tubular column, inject bittern to pithead position; Left standstill 24 hours;
(2), first operation valve, second operation valve and first tensimeter are installed, at the injection-production column jacket pithead position and the retentive control valve be in and close; First operation valve is used to control the connectedness between container and salt cave, and second operation valve and first tensimeter are used for bittern pressure variation in monitoring and control injection-production column jacket and the salt cave; The 3rd operation valve and second tensimeter are installed by annular space pithead position place at injection-production column jacket and completion tubular column, are used for bittern pressure variation in monitoring and the control annular space;
(3), support is placed on the ground, pithead position place, make pallet and ground level level through adjustment leg length; Container is placed on the bracket tray, makes container bottom protrusion interface through the circular hole that runs through on the bracket tray, through pipe fitting container bottom is protruded interface and is connected with first operation valve; In container, inject bittern to container height 4/5 position;
(4), open flowrate control valve, first operation valve, connection container and salt cave; The monitoring level change, and note the level change data.
9. underground salt hole air reserved storeroom performing leak test method according to claim 8, it is characterized in that: the test duration is no less than 24 hours, and is every at a distance from liquid level of 0.5 hour record.
10. described according to Claim 8-9 underground salt hole air reserved storeroom performing leak test method, it is characterized in that: bittern is saturated brine; When video data in the tensimeter is big, can discharge bittern, to guarantee the safety of proving installation through operation valve; In the test process, support and container and ground level keeping parallelism.
CN201210232963.5A 2012-07-06 2012-07-06 Testing device and testing method for tightness of underground salt cavern gas storage Expired - Fee Related CN102798507B (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106840995A (en) * 2016-12-20 2017-06-13 中国石油天然气股份有限公司 Physical simulation device and method for measuring salt cavern gas storage residue void utilization rate
CN107764509A (en) * 2016-08-16 2018-03-06 中国石油天然气股份有限公司 Gas-water interface control simulation experiment system in cavity-making process of salt cavern gas storage
CN108507734A (en) * 2017-02-28 2018-09-07 中国石油天然气股份有限公司 Method for detecting sealing performance of salt cavern
CN108661622A (en) * 2017-03-30 2018-10-16 中国石油天然气股份有限公司 Method for testing plugging effect of waste gas well of gas storage
CN109307576A (en) * 2018-12-03 2019-02-05 中国天辰工程有限公司 Salt hole air reserved storeroom method for testing tightness and system
CN109506850A (en) * 2018-11-19 2019-03-22 湖北双环科技股份有限公司 A kind of salt well method for testing tightness
CN109599578A (en) * 2018-10-25 2019-04-09 中盐金坛盐化有限责任公司 The method for conducting leak test and its detection device in the electrolyte liquid storage library based on salt cave
CN110005409A (en) * 2019-05-21 2019-07-12 中国天辰工程有限公司 A kind of salt hole air reserved storeroom venting test containing gas well method and system
CN110426157A (en) * 2019-07-17 2019-11-08 新昌县泉道智能科技有限公司 A kind of LED lamp detection device
CN111257209A (en) * 2020-01-23 2020-06-09 中国矿业大学 Experimental device for simulating corrosion effect of saturated brine in waste salt cavern on top plate
CN112228071A (en) * 2020-09-29 2021-01-15 中国科学院武汉岩土力学研究所 Method for detecting gas storage performance of brine mining dissolution cavity of high-impurity salt mine
CN113137278A (en) * 2021-04-30 2021-07-20 中国石油天然气股份有限公司 Salt cavern gas storage reveals emergency processing system
CN114674509A (en) * 2022-03-25 2022-06-28 机械工业勘察设计研究院有限公司 Water tightness detection method for existing salt cavern cavity
CN116484761A (en) * 2023-04-21 2023-07-25 中国科学院武汉岩土力学研究所 Salt cavern hydrogen storage tightness prediction and evaluation method and related equipment

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CN101509823A (en) * 2009-02-06 2009-08-19 济南兰光机电技术有限公司 Hollow container ventilation property test device using pressure differential method
CN102435398A (en) * 2011-09-07 2012-05-02 中核华誉工程有限责任公司 Test unit of cavity sluice gate of nuclear power station reactor

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US3580055A (en) * 1968-10-25 1971-05-25 Kent Moore Corp Tank system tightness tester
US6082182A (en) * 1997-10-20 2000-07-04 Vista Research, Inc. Apparatus for measuring the flow rate due to a leak in a pressurized pipe system
CN1877279A (en) * 2005-06-10 2006-12-13 中国石油天然气股份有限公司 Pressure test method for sealing performance of salt cavern gas storage cavity
RU2306540C2 (en) * 2005-08-08 2007-09-20 Открытое акционерное общество "Газпром" (ОАО "Газпром") Method of tightness testing of underground reservoir
CN101509823A (en) * 2009-02-06 2009-08-19 济南兰光机电技术有限公司 Hollow container ventilation property test device using pressure differential method
CN102435398A (en) * 2011-09-07 2012-05-02 中核华誉工程有限责任公司 Test unit of cavity sluice gate of nuclear power station reactor

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107764509A (en) * 2016-08-16 2018-03-06 中国石油天然气股份有限公司 Gas-water interface control simulation experiment system in cavity-making process of salt cavern gas storage
CN106840995B (en) * 2016-12-20 2023-05-26 中国石油天然气股份有限公司 Physical simulation device and method for measuring salt cavern gas storage residue void utilization rate
CN106840995A (en) * 2016-12-20 2017-06-13 中国石油天然气股份有限公司 Physical simulation device and method for measuring salt cavern gas storage residue void utilization rate
CN108507734B (en) * 2017-02-28 2020-01-03 中国石油天然气股份有限公司 Method for detecting sealing performance of salt cavern
CN108507734A (en) * 2017-02-28 2018-09-07 中国石油天然气股份有限公司 Method for detecting sealing performance of salt cavern
CN108661622A (en) * 2017-03-30 2018-10-16 中国石油天然气股份有限公司 Method for testing plugging effect of waste gas well of gas storage
CN109599578A (en) * 2018-10-25 2019-04-09 中盐金坛盐化有限责任公司 The method for conducting leak test and its detection device in the electrolyte liquid storage library based on salt cave
CN109506850A (en) * 2018-11-19 2019-03-22 湖北双环科技股份有限公司 A kind of salt well method for testing tightness
CN109307576A (en) * 2018-12-03 2019-02-05 中国天辰工程有限公司 Salt hole air reserved storeroom method for testing tightness and system
CN109307576B (en) * 2018-12-03 2020-07-17 中国天辰工程有限公司 Method and system for testing tightness of salt cavern gas storage
CN110005409A (en) * 2019-05-21 2019-07-12 中国天辰工程有限公司 A kind of salt hole air reserved storeroom venting test containing gas well method and system
CN110005409B (en) * 2019-05-21 2024-07-16 中国天辰工程有限公司 Method and system for testing gas well exhaust of salt cavern gas storage
CN110426157A (en) * 2019-07-17 2019-11-08 新昌县泉道智能科技有限公司 A kind of LED lamp detection device
CN111257209A (en) * 2020-01-23 2020-06-09 中国矿业大学 Experimental device for simulating corrosion effect of saturated brine in waste salt cavern on top plate
CN112228071A (en) * 2020-09-29 2021-01-15 中国科学院武汉岩土力学研究所 Method for detecting gas storage performance of brine mining dissolution cavity of high-impurity salt mine
CN113137278B (en) * 2021-04-30 2022-07-29 中国石油天然气股份有限公司 Salt cavern gas storage reveals emergency processing system
CN113137278A (en) * 2021-04-30 2021-07-20 中国石油天然气股份有限公司 Salt cavern gas storage reveals emergency processing system
CN114674509A (en) * 2022-03-25 2022-06-28 机械工业勘察设计研究院有限公司 Water tightness detection method for existing salt cavern cavity
CN114674509B (en) * 2022-03-25 2023-12-19 机械工业勘察设计研究院有限公司 Water tightness detection method for existing salt cavern cavity
CN116484761A (en) * 2023-04-21 2023-07-25 中国科学院武汉岩土力学研究所 Salt cavern hydrogen storage tightness prediction and evaluation method and related equipment
CN116484761B (en) * 2023-04-21 2023-12-26 中国科学院武汉岩土力学研究所 Salt cavern hydrogen storage tightness prediction and evaluation method and related equipment

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