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Multi-cycle alternating stress cap rock simulation apparatus

A technology for simulating experimental equipment and alternating stress, applied in the direction of applying stable tension/pressure to test material strength, etc., can solve problems such as lack, and achieve the effect of rapid experimentation

Inactive Publication Date: 2014-01-01
LANGFANG BRANCH INST OF RES INST OF GASOLINEEUM EXPLORATION & DEV OF PETROCHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this experimental device is still lacking in the prior art

Method used

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  • Multi-cycle alternating stress cap rock simulation apparatus
  • Multi-cycle alternating stress cap rock simulation apparatus

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Experimental program
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Embodiment Construction

[0015] The present invention will be further described below in conjunction with accompanying drawing:

[0016] Depend on figure 1 As shown, this kind of multi-cycle alternating stress caprock simulation experiment device consists of a gas cylinder 1, an air compressor 2, a gas booster pump 3, a data acquisition system 5, a liquid injection pump 6, a pressure regulating valve 7, and a gas storage tank 8. Strain detector 11, core holder 12, constant temperature box, ring pressure tracking pump 13, pressure loading equipment 14, bubble detector 15, Erlenmeyer flask 16, electronic balance 17 and vacuum pump 18 are connected by pipelines. Wherein, the data acquisition system 5 is a computer data acquisition system with a built-in computer program, and the data acquisition system 5 is used to collect the pressure, temperature, strain, breakthrough time and breakthrough pressure data in the simulation experiment device.

[0017] The specific connection relationship is as follows: t...

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Abstract

The invention relates to a multi-cycle alternating stress cap rock simulation apparatus, and mainly aims to provide an experimental apparatus for researching that a gas breaks through a rock sample. The apparatus is characterized in that the apparatus is formed by connecting a gas bottle, an air compressor, a gas booster pump, a data acquisition system, a liquid injection pump, a pressure regulating valve, a gas storage tank, a strain detector, a rock core holder, a thermotank, a ring tracking pump, a pressure loading device, a bubble detector, an erlenmeyer flask, an electronic balance and a vacuum pump through a pipeline; an axial pressure is applied to the rock core holder through an axial pressure inlet end on the rock core holder by the pressure loading device in order to stimulate the strata pressure; the rock core holder is positioned in the thermotank, foil gauges are fixed in the periphery of a rock core; and a fiber receiver which can cooperate with a correlation fiber sensor is arranged in the bubble detector. The experimental apparatus can accurately record the cap rock breakthrough pressure, and is helpful for completing the multi-cycle alternating stress cap rock sealing performance evaluation of underground gas storages.

Description

technical field [0001] The invention relates to a device used in the field of geophysical exploration, which can complete multi-period alternating stress caprock simulation experiments. Background technique [0002] The research status of my country's underground gas storage construction technology can be summarized as follows: domestic depleted gas reservoir construction technology is basically mature; depleted oil reservoir construction technology is still being explored; salt cavern gas storage technology has made great progress; aquifer The research on the structure of gas storage has just started; the natural gas injection and production performance of underground gas storage is an important index to measure the efficiency of gas storage, and it is also an important factor affecting the stability of gas storage. The experiment can study the relationship between the formation overburden pressure and the linear elastic deformation of the caprock rock sample, so as to study...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/10
Inventor 李建中郑得文丁国生郑雅丽完颜祺琪赵艳杰孙春柳李清山韩冰洁张云峰李易霖
Owner LANGFANG BRANCH INST OF RES INST OF GASOLINEEUM EXPLORATION & DEV OF PETROCHINA
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