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Crustal stress prediction method and device

A prediction method and technology of a prediction device, which are applied in the field of geophysical exploration, can solve the problems of not considering the influence of changes in in-situ stress distribution and being unable to guide oil and gas field development plans well, and achieve the effect of accurate in-situ stress distribution

Active Publication Date: 2018-10-09
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

The current technology does not consider the influence of reservoir engineering factors (such as water injection, oil recovery, etc.) on the distribution of in-situ stress, so it cannot guide the adjustment of oil and gas field development management and development plan.

Method used

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  • Crustal stress prediction method and device
  • Crustal stress prediction method and device
  • Crustal stress prediction method and device

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in combination with the drawings in the embodiments of the present specification. Obviously, the described embodiments are only some of the embodiments of the present specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0016] see figure 1 . The embodiment of this specification provides a ground stress prediction method. The ground stress prediction method uses a server as the execution body, and may include the following steps.

[0017] Step S10: Provide the original three-dimensional stress distribution data of the work area.

[0018] In this embodiment, the work area may refer to an area where construction is performed, for example, an oil and gas field or the...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06F17/50G06Q50/02E21B49/00
CPCG06Q10/04G06Q50/02E21B49/00E21B49/003G06F30/23G06F2111/10G06F2119/06
Inventor 曾联波刘喜中田鹤毛哲
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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