Rock core capillary self-absorption simulation instrument and application method thereof

A technology of capillary self-priming and simulator, which is applied in the direction of scientific instruments, measuring devices, suspension and porous material analysis, etc. It can solve the problems of poor simulation effect and achieve the effect of accurate data, convenient operation and high degree of automation

Active Publication Date: 2018-01-05
成都鼎佳能源技术有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a core capillary self-priming simulator and its use method to solve the problem of poor simulation effect of existing simulated core self-priming equipment

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  • Rock core capillary self-absorption simulation instrument and application method thereof

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Embodiment Construction

[0032] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0033] like figure 1 As shown, the core capillary self-priming simulator includes a core holder 4 for holding the core. The core holder 4 is connected to the confining pressure pump 12 through the third electric control valve 9. The confining pressure pump 12 is used to provide the core confining pressure. pressure;

[0034] A second pressure detection device 11 is provided between the core holder 4 and the third electric ...

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Abstract

The invention discloses a rock core capillary self-absorption simulation instrument. The instrument comprises a rock core holder, the rock core holder is connected to a confining pressure pump by a third electric control valve, and a second pressure meter is arranged between the rock core holder and the third electric control valve; one end of the rock core holder is connected to a back pressure value, and the other end of the rock core holder is connected to an intermediate container with scale through a second electric control valve and a fluid flowmeter in order; the intermediate containerwith scale is connected to a pressure apparatus though a first electric control valve, and a first pressure meter is arranged between the intermediate container with scale and the first electric control valve; the first electric control valve, the second electric control valve and the third electric control valve are connected to an apparatus for controlling system as well as acquiring and processing data. The instrument can simulate the capillary self-absorption process under the conditions of overbalance, underbalance, and near-balance of stratum; a computer is used in an experiment processfor realizing processing automation of test and data results, in order to obtain self-absorption speed and intrusion depth and other parameters of capillary, and better simulate self-absorption of rock core.

Description

technical field [0001] The invention relates to the field of simulated rock core self-absorption, in particular to a rock core capillary self-absorption simulator and a use method thereof. Background technique [0002] At present, the core self-absorption rate is usually measured by the intelligent LCR measuring instrument to measure the change of core resistivity during the core self-priming process to determine the invasion depth. Balanced capillary self-priming capacity; the existing equipment cannot measure the under-balanced capillary self-priming capacity of the formation, and cannot evaluate the reverse osmosis process of the liquid accumulation in the wellbore of the old well; the core wall is prone to self-priming during the testing process of the existing capillary self-priming simulator Errors are caused to the experimental test results, and the capillary self-absorption capacity of the core end face cannot be accurately described. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
Inventor 张浩钟颖佘继平李国锋
Owner 成都鼎佳能源技术有限公司
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