Crustal stress prediction method and device

Abstract

The embodiment of the invention provides a crustal stress prediction method and device. The method comprises the steps: providing raw three-dimensional crustal stress distribution data of a work area;receiving a prediction moment and production data; determining the stratum pore fluid pressure of a well point location in the work area at the prediction moment based on the production data; determining the crustal stress of the well point location in the work area at the prediction moment based on the stratum pore fluid pressure and the raw three-dimensional crustal stress distribution data; determining the crustal stress at the prediction moment of the well point location in the work area based on the crustal stress of the well point location in the work area at the prediction moment, andthen obtaining the three-dimensional crustal stress distribution data of the work area at the prediction moment.

Description

technical field

[0001] The embodiments of this specification relate to the technical field of geophysical exploration, and in particular to a method and device for predicting ground stress. Background technique

[0002] In-situ stress is the mechanical parameter of the solid medium of the earth that is affected by gravity, various earth tectonic dynamics, astronomical dynamics, and additional dynamics of excavation engineering, causing response deformation in the internal units of the medium. Accurate 3D in-situ stress distribution data is an important geological basis for oil and gas field development management and development plan adjustment.

[0003] At present, the development and management of oil and gas fields are generally guided based on the original in-situ stress distribution data, which is usually the in-situ stress distribution data of the oil and gas field before injection-production development. However, in the process of injection-production development of ...

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