Perforation completion method used for hydraulic fracturing physical simulation test

Abstract

The invention discloses a perforation completion method used for a hydraulic fracturing physical simulation test. According to the perforation completion method, a bendable, flexible and thin-strip-shaped material stretches into a shaft, in the side surface of which, a plurality of perforations are formed, in addition, the bendable, flexible and thin-strip-shaped material is bent and stretches out at the perforations, then the shaft is put into a mould to be fixed, a prepared model material is poured into the mould, a model is maintained, the flexible and thin-strip-shaped material is pulled out when the model reaches preset strength, and the mould is disassembled, so that the model prepared in a perforation completion manner is obtained. By adopting the perforation completion method disclosed by the invention, the perforation completion is realized more conveniently and flexibly, the application range is wider, a most general spiral perforation completion manner can be realized, and in addition, soluble solid is not used in the method, so that the problem of perforation blockage is not caused, and moreover, by adopting the method, all related parameters such as perforation positions, perforation intervals, perforation diameter, perforation length and perforation phase angle can be set according to requirements.

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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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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