A perforation completion method for hydraulic fracturing physical simulation test
A physical simulation and hydraulic fracturing technology, which is applied in the field of oil and gas reservoir development technology research, can solve the problems of perforation blockage, perforation can not simulate spiral perforation, and the quality of perforation is not easy to maintain uniformity, so as to achieve convenient and Wide range of effects
Active Publication Date: 2017-12-19
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +1
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Problems solved by technology
[0008] This application provides a perforation completion method for hydraulic fracturing physical simulation test, which solves the problem that the perforation method in the prior art cannot simulate spiral perforation, and some soluble solids will remain in the perforation channel. Perforation blockage, perforation quality is not easy to maintain uniform technical problems
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[0027] The embodiment of the present application provides a perforation completion method for hydraulic fracturing physical simulation test, which solves the problem that the perforation method in the prior art cannot simulate spiral perforation, and some soluble solids will remain in the perforation. The perforation is blocked in the tunnel, and the perforation quality of the perforation is not easy to maintain uniform technical problems.
[0028] The technical solution in the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:
[0029] A perforation completion method for a hydraulic fracturing physical simulation test, the perforation completion method comprising: making a wellbore with a plurality of perforations distributed on the side, and the perforations penetrate the wellbore wall of the wellbore; Stretch the bendable tough thin strip material from one end of the wellbore, bend and protrude from ...
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The invention discloses a perforation completion method for hydraulic fracturing physical simulation tests. The perforation completion method extends a bendable tough thin strip material into a wellbore with multiple perforations on the side, and The bendable tough thin strip material is bent and protruded at the perforation, then the wellbore is put into the mold and fixed, the prepared model material is poured into the mold, and the model is maintained. When the preset strength is reached, the ductile thin strip material is pulled out, the mold is removed, and the model prepared by perforation and completion is obtained. This perforation and completion method makes the realization of perforation and completion more convenient and flexible, and the scope of application is wider. Wide range, the most common completion method of spiral perforation can be realized, and this completion method does not use soluble solids, so it will not cause the problem of perforation blockage, and this method can set the perforation position, shot All relevant parameters such as hole spacing, perforation diameter, perforation length, and perforation phase angle.
Description
technical field [0001] The invention relates to the technical field of oil and gas reservoir development technology research, in particular to a perforation completion method used for hydraulic fracturing physical simulation tests. Background technique [0002] Unconventional natural gas such as shale gas and tight sandstone gas is becoming an important target for exploration and development. Due to the tight reservoir and low permeability, it needs to be effectively developed through hydraulic fracturing technology. In the field, in order to maintain the stability of the wellbore, casing cement is usually used to cement the well first, and then perforation is carried out further. Hydraulic fracturing is carried out so that the generated hydraulic fractures fully extend to the interior of the reservoir, forming artificial fracture seepage channels, and effectively improving oil and gas recovery. [0003] The initiation of hydraulic fractures at the borehole wall is the prim...
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IPC IPC(8): E21B43/11E21B43/26
Inventor 王磊杨春和蒋廷学侯振坤郭印同魏元龙徐峰
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI