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A Reservoir Lithofacies Characterization Method and Device

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: 2021-01-29
PETROCHINA CO LTD
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  • Claims
  • Application Information

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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

Method used

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  • A Reservoir Lithofacies Characterization Method and Device
  • A Reservoir Lithofacies Characterization Method and Device
  • A Reservoir Lithofacies Characterization Method and Device

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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 present application provides a method and device for characterization of reservoir lithofacies. The method includes: according to the distribution information of wells in the area to be analyzed, configuration units, and lithofacies units, establishing configuration unit comparison profiles and lithofacies unit comparison profiles; according to configuration unit comparison profiles, lithofacies unit comparison profiles, Based on the coordinate information of each well, construct a 3D configuration unit comparison section and a 3D lithofacies unit comparison section; pick up configuration unit boundary control lines and lithofacies unit boundary control lines, and establish configuration unit interfaces and lithofacies unit interfaces; Comparing sections between the unit interface and the three-dimensional configuration unit, the three-dimensional configuration unit geological model is established; according to the lithofacies unit interface and the three-dimensional configuration unit geological model, the three-dimensional lithofacies unit geological model is constructed. By using the various embodiments in the present application, the three-dimensional distribution characteristics of configuration units and lithofacies units can be accurately described, and the accuracy of geological 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 Patents(China)
IPC IPC(8): G06F30/20G06T17/05
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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