Representation method and device for reservoir lithofacies

A reservoir and characterization technology, applied in the field of petroleum exploration, can solve the problems of interruption of geological bodies and small weights, and achieve the effect of reducing isolated lithofacies units

Active Publication Date: 2018-06-01
PETROCHINA CO LTD
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  • Claims
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Problems solved by technology

This has little effect on the muddy units and thicker sandy locations, but for thinner locations, because of their smaller thickness, the weight they occupy is relatively small, causing the stochastic simulation model to ignore these thinner regions, making The originally continuous geological body has been interrupted

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  • Representation method and device for reservoir lithofacies
  • Representation method and device for reservoir lithofacies
  • Representation method and device for reservoir lithofacies

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Embodiment Construction

[0081] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0082] When conducting oil and gas exploration, the oil and gas development plan can be determined by analyzing the geological reservoir configuration and oil and gas storage conditions. Usually, geological modeling technology can be used to establish a geological model to characterize the geological conditions of the area to be analyzed....

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Abstract

The invention provides a representation method and device for reservoir lithofacies. The method comprises the steps that according to distribution information of wells, a configuration unit and a lithofacies unit in a to-be-analyzed region, a configuration unit comparison profile and a lithofacies unit comparison profile are established; according to the configuration unit comparison profile, thelithofacies unit comparison profile and coordinate information of all the wells, a three-dimensional configuration unit comparison profile and a three-dimensional lithofacies unit comparison profile are constructed; a configuration unit boundary control line and a lithofacies unit boundary control line are picked, and a configuration unit interface and a lithofacies unit interface are established;according to the configuration unit interface and the three-dimensional configuration unit comparison profile, a three-dimensional configuration unit geologic model is established; and according to the lithofacies unit interface and the three-dimensional configuration unit geologic model, a three-dimensional lithofacies unit geologic model is constructed. By use of all embodiments, three-dimensional distribution characteristics of the configuration unit and the lithofacies unit can be accurately depicted, and the accuracy of geologic structure analysis is improved.

Description

technical field [0001] The application belongs to the technical field of petroleum exploration, and in particular relates to a method and device for characterization of reservoir lithofacies. Background technique [0002] During oil and gas exploration, geological modeling technology can be used to analyze the geological structure and oil and gas reserves of the area to be developed. For example: Through the study of geological internal structure and sedimentary geometry, etc., reservoir geological models and lithofacies geological models that can characterize reservoirs and reservoir models can be established. Through the reservoir geological model and lithofacies geological model, the three-dimensional structure of the sedimentary body in the area to be developed can be analyzed, which plays an important role in determining the oil and gas development plan of the reservoir. [0003] In the prior art, the stochastic modeling method is usually used for geological modeling, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/05
CPCG06T17/05G06F30/20
Inventor 张克鑫张兴唐明明陈和平胡泉万学鹏卢双舫黄文松张超前林士尧张海宽
Owner PETROCHINA CO LTD
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