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Intelligent logging horizon division method

A technology of logging and logging curves, applied in the field of intelligent logging horizon division

Pending Publication Date: 2021-05-11
BC P INC CHINA NAT PETROLEUM CORP +1
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There are certain disadvantages in the above algorithm in terms of calculation accuracy, speed and practical application

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Embodiment Construction

[0063] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part 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 shall fall within the protection scope of the present invention.

[0064] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses an intelligent well logging horizon division method, and belongs to the technical field of petroleum and natural gas exploration and development. The method comprises the following steps: cleaning and preprocessing logging sample data of a logging curve to obtain a logging curve without an invalid value; for the obtained logging curve without the invalid value, extracting and labeling logging sample data to obtain training set sample data, verification set sample data and test set sample data; building a neural network; according to the established neural network, learning the obtained training set sample data and verification set sample data to obtain a horizon division model; storing the obtained horizon division model to obtain a callable horizon division model; and calling the obtained horizon division model and applying the horizon division model to the obtained test set sample data to obtain a prediction result, and performing horizon interface pickup on the data of the obtained prediction result to realize intelligent logging horizon division. The intelligent horizon division can be quickly and accurately carried out in the well logging processing interpretation process, and the layering efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of petroleum and natural gas exploration and development, and relates to an intelligent logging layer division method. Background technique [0002] Horizon division is the basic and key link in logging data processing and interpretation, and it is also the premise of correctly selecting parameters in logging data processing and the key to fluid identification; the determined horizon has a relatively stable lithology combination, which is important for the subsequent vertical It is of great significance to evaluate the combination of source, reservoir and caprock as well as the characteristics of reservoir distribution in the lateral direction. [0003] At present, with the development of artificial intelligence technology, it has shown great advantages in solving some complex problems and improving work efficiency. Many problems in petroleum logging can be summarized as regression and classification proble...

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Application Information

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IPC IPC(8): G06N3/08G06N3/04G06F16/215
CPCG06N3/08G06F16/215G06N3/045
Inventor 周军曹先军李国军余长江马修刚张娟孙佩倪路桥
Owner BC P INC CHINA NAT PETROLEUM CORP
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