Experimental process and equipment of repeated perforation of same hole

Abstract

The invention relates to the field of oil field well logging, and belongs to an experimental process and equipment of repeated perforation of the same hole of oil field well logging perforation equipment. To solve the problem that perforation equipment in oil field well logging cannot realize repeated perforation on the basis of the first perforation evelet, the experimental process and equipmentare designed. The experimental equipment is mainly composed of a well pressure simulation and perforation system (1), a confining pressure simulation system (2), a pore pressure simulation system (3).The pressure simulation system (2) and the pore pressure simulation system (3) provide confining pressure, pore pressure, and a target. The well pressure simulation and perforation system (1) provides perforation under the well pressure condition. Repeated perforation is achieved through replacing an energy-gathered perforation device (6) inside the well pressure simulation and perforation system(1). The experimental process has the advantages can simulate down hole confining pressure conditions to complete repeated perforation of the same hole and flowing test; low in cost, high in efficiency, and convenient to use.

Description

technical field [0001] The invention relates to the field of oil field logging, and belongs to a same-hole repeated perforation experimental technique and device for perforating equipment testing. Background technique [0002] The testing technology of perforating equipment currently used in oilfields is based on GB / T 20488-2006 "Performance Test Method for Energy Concentrating Perforating Equipment for Oil and Gas Wells", API RP19B: 2006 Second Edition "Recommended Practices for Evaluation of Perforating Equipment for Oil and Gas Wells" (English version ), etc., are all one-time perforation test technology, and the corresponding experimental devices cannot carry out repeated perforation experiments in the same hole. One-time perforation test technology is to install the perforator on the target target, load different temperature, pressure and other test conditions, perforate, test the perforation performance and damage degree, the disadvantage of this technology is that the...

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Problems solved by technology

[0002] The testing technology of perforating equipment currently used in oilfields is based on GB / T 20488-2006 "Performance Test Method for Energy Concentrating Perforating Equipment for Oil and Gas Wells", API RP19B: 2006 Second Edition "Recommended Practices for Evaluation of Perforating Equipment for Oil and Gas Wells" (English version ), etc., are all one-time perforation test technology, and the corresponding experimental equipment cannot carry out repeated perforation experiments in the same hole

One-time perforation test technology is to install the perforator on the target target, load different temperature, pressure and other test conditions, perforate, test the perforation performance and damage degree, the disadvantage of this technology is that the same hole can not be repeated perforation experiment , it is impossible to test the effect of repeated perforation on the basis of the first perforation perforation

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