Full-sew-length three-dimensional crushing data simulation method and device for oil and gas reservoir development

Abstract

The invention provides a full-sew-length three-dimensional crushing data simulation method and device for oil and gas reservoir development. The method comprises obtaining pre-stack seismic data of an oil and gas reservoir development object region, obtaining the pre-stack seismic data to conduct elastic parameter inversion and obtaining an elastic parameter data body of the oil and gas reservoir development object region, constructing a rock mechanic parametric model based on three-dimensional grid nodes according to the elastic parameter data body, calculating stress information on the three-dimensional grid nodes, generating three-dimensional stress field distribution model; and conducting full-sew-length three-dimensional numerical simulation in a crushing process according to the rock mechanic parametric model and the three-dimensional stress field distribution model. The full-sew-length three-dimensional crushing data simulation method and device can improve accuracy and efficiency of crushing data.

Description

technical field [0001] This application relates to the technical field of oil and gas reservoir development, in particular to a method for full-fracture-length three-dimensional fracturing numerical simulation for oil-gas reservoir development, and a full-fracture-length three-dimensional fracturing numerical simulation for oil-gas reservoir development installation. Background technique [0002] my country has 6.6 billion tons of low-permeability oil and gas reserves that have not been developed. In recent years, the scale of low-permeability oil and gas production capacity construction accounts for more than 70% of the country's total, and has become the main battlefield for increasing oil and gas reserves and production in my country. The core issue to achieve economical and effective development of low-permeability hard-to-produce reserves is to find out the reasonable matching between the spatial distribution of artificial fractures and well pattern after fracturing, an...

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Problems solved by technology

[0005] 1. Traditional geological method: Mainly observe and describe the outcrop in the field, summarize the development law of fractures, and combine the observation, description and statistics of downhole cores to establish the distribution law of regional fractures. Obviously, this method consumes a lot of manpower and material resources, and takes a lot of time. longer;

[0006] 2. Research on multidisciplinary comprehensive means technology: establish a semi-quantitative distribution model of fractures through comprehensive information of well logging (especially imaging logging (FMI / EMI)), seismic, and drilling coring. This method is currently a popular and commonly used method , the disadvantage is that it is poorly operable when implemented in the oil field, and cannot meet the requirements for the implementation of actual production increase measures in oil field production;

As a result, the actual distribution of underground fractures is quite different from the half-fracture length obtained by methods commonly used at home and abroad, which directly affects the development effect of oil and gas reservoirs.

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