Experimental device for researching micro-leaking of gas in underground oil and gas reservoir through stratums

An experimental device and technology for oil and gas reservoirs, applied in the field of micro-leakage experimental devices, can solve the problems of inconvenient mutual influence, surface superposition effect, inconvenient simulation of mutual influence, etc.

Active Publication Date: 2016-12-07
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

However, when setting up the simulated formation, the porosity and permeability of the simulated formation are the same at all heights, and only one layer of oil and gas caprock can be simulated
In this way, it is not convenient to simulate the interaction of gas in oil and gas reservoirs at different de

Method used

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  • Experimental device for researching micro-leaking of gas in underground oil and gas reservoir through stratums

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing.

[0021] The experimental device of the invention is used for studying micro-leakage of gas in multiple underground oil and gas reservoirs. Such as figure 1 As shown, the experimental device includes a simulation chamber 1 with an open top, and a gas cylinder 4 filled with gas similar to oil and gas reservoir gas (such as hydrocarbon gas) and communicated with the simulation chamber 1 . Wherein, at least two simulated formations 3 are provided in the simulation chamber 1 , and each simulated formation 3 is stacked along the vertical direction of the simulation chamber 1 . A soil layer 2 is provided above the uppermost simulated ground layer 3 . By simulating the formation 3 and the soil layer 2 to simulate the real formation, it creates a favorable simulation environment for studying the micro-leakage of oil and gas reservoir gas in the formation. After setting up multiple...

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Abstract

The invention relates to an experimental device for researching micro-leaking of gas in underground oil and gas reservoir through stratums. The experimental device comprises a simulation chamber, a gas cylinder and at least two layers of simulated stratums superposed up and down, and a soil layer positioned uppermost, wherein each simulated stratum comprises a direct covering layer with small hole penetration, and an overlying stratum with large hole penetration and positioned above the direct covering layer, and each direct covering layer is provided with a gas outlet. The experimental device can be used for simulating the micro-leaking rule and near-surface abnormal distribution of gas in a plurality of oil and gas reservoirs underground, so as to obtain theoretic knowledge for guiding the oil and gas earth chemical exploration practice; the experimental device can conduct oil-gas secondary migration simulation and mechanism study thereof; the experimental device can conduct the closure study of the oil and gas reservoir covering layer; the experimental device can conduct oil and gas consumption quantity simulation study, thus providing parameters for the calculation of resource quantity.

Description

technical field [0001] The present invention relates to an experimental device for studying the micro-leakage of gas in underground oil and gas reservoirs, in particular to an experiment for studying the mechanism of micro-leakage of gas in oil and gas reservoirs distributed at different depths in the underground vertical direction and in different lateral positions device. Background technique [0002] Surface geochemical exploration in areas where there are two sets of hydrocarbon-bearing systems with different evolution degrees of source rocks (such as Cenozoic and Mesozoic, or Mesozoic and Paleozoic, etc.), or in areas where complex oil and gas fields exist In this study, it is necessary to identify the characteristics of geochemical anomalies from different sources, and to study the gas micro-leakage mechanism of multiple oil and gas reservoirs through experimental devices can provide experimental basis and play a guiding role for the correct analysis of surface geochem...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 王国建汤玉平杨俊朱怀平李武黄欣卢丽宁丽荣李吉鹏陈银节
Owner CHINA PETROLEUM & CHEM CORP
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