Composite segmentation method and device for reconstruction of ultra-thick reservoir of ultra-deep gas reservoir

Abstract

The embodiment of the invention provides an ultra-deep gas reservoir ultra-thick reservoir reconstruction composite segmentation method and device, and the method comprises the following steps: determining fine layers corresponding to the reservoirs in a marker bed according to the reservoir characteristics of each reservoir in the marker bed, each fine layer comprising at least one reservoir, and each fine layer comprising at least one reservoir; the difference value between the reservoir features of the reservoirs corresponding to the fine layers is smaller than or equal to a preset threshold value; according to the adjacent similar features, mechanical layers corresponding to the fine layers are determined, and each mechanical layer comprises at least one fine layer; according to the similar adjacent characteristics, determining a temporary blocking layer corresponding to the mechanical layer; and the temporary plugging layering is transformed. According to the composite segmentation method for reconstruction of the ultra-deep gas reservoir ultra-thick reservoir, uniform reconstruction of the reservoir can be achieved when the ultra-deep gas reservoir ultra-thick reservoir is reconstructed, reconstruction of the ultra-thick reservoir is more sufficient, and the yield of a single well is greatly increased.

Description

technical field [0001] The invention relates to the technical field of petroleum exploitation, in particular to a composite segmentation method and device for ultra-deep gas reservoir super-thick reservoir reconstruction. Background technique [0002] When developing mineral resources, it is necessary to transform the reservoir of mineral resources to develop mineral resources from the reservoir. In ultra-deep oil and gas reservoirs, due to the ultra-deep reservoir, high temperature, pressure, and in-situ stress, conventional downhole segmentation tools for reservoir stimulation are no longer applicable, resulting in difficulty in mining. [0003] In the prior art, for ultra-deep and extremely thick reservoirs under such working conditions, temporary plugging materials are usually used for layering and then the production enhancement is carried out, so as to realize the stimulation of the reservoir. Due to the poor delamination effect of temporary plugging materials, only 2...

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Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for ultra-deep gas reservoir super-thick reservoir reformation and compound segmentation, which is used to solve the problem that the erosion amount obtained in the prior art is often smaller than the actual erosion amount, and the error is relatively large

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