Oil reservoir seepage flow numerical simulation method and device

A numerical model and seepage technology, which can be used in electrical digital data processing, special data processing applications, instruments, etc., and can solve problems such as inaccurate evaluation results.

Active Publication Date: 2017-09-05
CHINA UNIV OF PETROLEUM (BEIJING) +1
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[0003] The invention provides a method and device for numerical simulation of reservo

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  • Oil reservoir seepage flow numerical simulation method and device
  • Oil reservoir seepage flow numerical simulation method and device
  • Oil reservoir seepage flow numerical simulation method and device

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[0043]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in detail and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] figure 1 A flowchart of an embodiment of the reservoir seepage numerical simulation method provided by the present invention, such as figure 1 shown, including:

[0045] 101. Obtain the initial state information of each grid region of the heterogeneous sandstone reservoir, the change function corresponding to each parameter in the i...

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Abstract

The invention provides an oil reservoir seepage flow numerical simulation method and device. The oil reservoir seepage flow numerical simulation method includes acquiring initial state information of every mesh area of a heterogeneous sandstone reservoir, variation functions corresponding to parameters in the initial state information as well as attribute information of every permeability range of the heterogeneous sandstone reservoir; substituting the parameters into a preset oil reservoir seepage flow numerical model to obtain a seepage flow control equation group of seepage flow control equations corresponding to the permeability ranges; solving the seepage flow control equation group by combining a definite condition of the seepage flow control equation group to obtain parameter values of the parameters after the heterogeneous sandstone reservoir produces for a period of time so as to accurately describe residual oil distribution characteristics after the heterogeneous sandstone reservoir produces for a preset time and formulate a reasonable tapping potential. The oil reservoir seepage flow numerical simulation method takes differences of seepage characteristics of reservoirs into full consideration and reduces errors between assessment results and actual conditions.

Description

technical field [0001] The invention relates to the technical field of oil reservoir engineering, in particular to a numerical simulation method and device for oil reservoir seepage. Background technique [0002] At present, the commonly used processing method in the study of seepage characteristics of continental heterogeneous sandstone reservoirs is to divide the reservoir into "effective reservoirs" and "ineffective reservoirs", and only consider the seepage characteristics of fluids in effective reservoirs, while the idealized The effects of "invalid reservoirs" are ignored. However, as more and more of these reservoirs enter the later stage of development, the previously considered "ineffective reservoirs" have become targets for potential exploration. Due to the rapid change of reservoir physical properties in heterogeneous sandstone reservoirs, the seepage characteristics of each reservoir are quite different. If we still only consider the seepage characteristics of ...

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Application Information

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IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 刘彦锋刘月田柴汝宽雷丽
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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