Hydraulic fracturing artificial fracture prediction method, device and equipment and storage medium

Abstract

An embodiment of the invention relates to the technical field of crack prediction, in particular to a hydraulic fracturing artificial crack prediction method, a hydraulic fracturing artificial crack prediction device, hydraulic fracturing artificial crack prediction equipment and a storage medium. The hydraulic fracturing artificial crack prediction method comprises the steps of: determining a prediction point; acquiring a brittleness index of a reservoir stratum where the prediction point is located; determining the distance between the prediction point and a perforation point; acquiring a position relationship between the prediction point and principal stress; and calculating to obtain the probability that the prediction point has cracks according to the brittleness index, the distance between the prediction point and the perforation point and the position relationship between the prediction point and the principal stress. According to the hydraulic fracturing artificial crack prediction method, the reservoir brittleness index is calculated, the brittleness index, the distance between the prediction point and the perforation point and the position relationship between the prediction point and the principal stress are used for conducting hydraulic fracturing artificial fracture prediction, the defect that the prior art excessively depends on a geological model is overcome, andthe prediction precision is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of fracture prediction, and in particular to a hydraulic fracturing artificial fracture prediction method, device, equipment and storage medium. Background technique [0002] Hydraulic fracturing is a method of increasing production of oil and gas wells. By using a surface high-pressure pump to transport liquid to the underground oil layer to form high pressure, the oil layer is pressed open and cracks are formed, so that oil flows out along the fracture. At present, the artificial fracture shape prediction of hydraulic fracturing can be mainly divided into three methods. The first is to predict through seismic attributes; the second is to predict from well logging data; The above method must obtain important heterogeneity information of the reservoir, such as the distribution difference of rock properties and strata; due to excessive reliance on geological models, the prediction ac...

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Problems solved by technology

[0003] For this reason, the embodiment of the present invention provides a hydraulic fracturing artificial fracture prediction method, device and equipment to solve the problem of over-reliance on geological models and low prediction accuracy in the prior art

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