Determination method of the dominant channel of the target well permeability and the dominant channel of the whole area

Abstract

The invention provides a method for determining the dominant channel of the permeability of a target well and a method for determining the dominant channel of the whole area of ​​permeability. The method for determining the dominant permeability channel of the target well may include the following steps: determining the dominant direction of oil and gas permeability in the reservoir; determining the dominant permeability channel of the target well according to the permeability parameters of adjacent wells around the target well. The method for determining the dominant channel of permeability in the whole area may include the following steps: using the method for determining the dominant channel of permeability of the target well as described above to determine the channel of dominant permeability of each single well in the whole area; channel, to obtain the dominant channel of permeability in the whole area. The beneficial effects of the present invention may include: easy data acquisition, no need for a large amount of complicated data, extremely low cost, no complicated calculation process, and convenience.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploration and development, in particular to a method for determining a dominant channel of permeability in a target well and a method for determining a dominant channel in the whole area of ​​permeability. Background technique [0002] Permeability dominant channel, also called seepage channel or dominant channel, is due to the planar non-uniformity of the reservoir, which causes the permeability of the reservoir in a certain direction to be better than that in other directions, and the fluid (oil, gas, water) is easier to flow in this direction. direction flow. In the prior art, there are usually the following methods for determining the dominant channel of permeability: (1) water absorption profile + production logging to identify the dominant channel; (2) using a large number of coring data to describe reservoir heterogeneity and identify Predominant channel; (3) Interwell tracer detecti...

AI Technical Summary

Problems solved by technology

[0003] However, in these existing technologies, either water injection wells and production logging data are required, or a large amount of core analysis data is required, or the cost is high and the workload is heavy, or detailed production dynamic data is required, or various data are integrated through other software. A kind of production dynamic data grid processing to identify the dominant channel

These technical methods have high requirements on the original data, so it is not suitable to quickly and conveniently determine the dominant channel of permeability.

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