Electric-explosion plasma petroleum yield-increase testing device

A test device and plasma technology, applied in measuring devices, mining fluids, impact tests, etc., can solve the problems of difficulty in establishing plasma channels and low energy conversion efficiency, and achieve the effect of improving fluidity

Inactive Publication Date: 2015-11-11
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The existing electric pulse stimulation technology (electric detonation) is based on the electrohydraulic effect, and high-voltage, high-current pulse discharge is performed in the liquid medium. The consequence of this is that it is difficult to establish a plasma channel between the high and low voltage electrodes, and there is no metal Silk needs to consume a large amount of additional electric energy to form a plasma channel, so that the charging voltage of the electric detonation reaches tens of kilovolts, and the energy conversion efficiency is low.

Method used

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Embodiment Construction

[0039] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0040] Such as figure 1 As shown, the present invention provides an electric explosion plasma oil stimulation test device 100, which includes a plasma launch frame 15, an inner sleeve 14, a high voltage electrode 16, a lower bracket 21, a low voltage electrode 20, and a metal shell 18. The top and the bottom of the plasma emission rack 15 are respectively provided with an upper disk 151 and a lower disk 152 with the same diameter, and the upper disk 151 and the lower disk 152 are connected by a plurality of columns 153, which are cylindrical as a whole. A plurality of columns 153 are evenly distributed along the circumferential direction, and a threaded through hole is provided in the center of the upper disc 151 ; the threaded thr...

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Abstract

The invention relates to an electric-explosion plasma petroleum yield-increase testing device which comprises a plasma emission tray. An inner sleeve is in threaded connection on the plasma emission tray. A high-voltage electrode is coaxially fixed at the lower end of the inner sleeve. An insulating sleeve is arranged between the high-voltage electrode and the inner sleeve. A lower support is fixed below the plasma emission tray. A low-voltage electrode is fixed between the plasma emission ray and the lower support. The center of the low-voltage electrode is provided with a wire feed channel. The upper end of a metal shell is sealingly and threadingly connected at the lower end of the low-voltage electrode. A wire feeder is arranged inside the metal shell. The high-voltage electrode keeps a certain distance from the low-voltage electrode. Continuous wire feeding can be realized according to needs, and different test parameters can be adjusted to study crushing effect of electric explosion in the air or a liquid on rock and concrete samples under different working conditions so as to obtain influence rules.

Description

technical field [0001] The invention relates to a test device for oil production increase, in particular to an electric explosion plasma oil production test device. Background technique [0002] With the reduction of oil resources, oil production stimulation technology has gradually become a popular technology in the oil industry. Hydraulic fracturing technology is the main method of production stimulation today, and the problem of environmental pollution has always caused people to worry. New oil production stimulation technology and equipment has become an innovation field in the oil industry. [0003] The existing electric pulse stimulation technology (electric detonation) is based on the electrohydraulic effect, and high-voltage, high-current pulse discharge is performed in the liquid medium. The consequence of this is that it is difficult to establish a plasma channel between the high and low voltage electrodes, and there is no metal Silk needs to consume a large amoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08E21B43/26
Inventor 郭岩宝刘奔王德国黄河刘书海
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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