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Well Logging Reconstruction Based on Bidirectional GRU

Published: 14 October 2022 Publication History

Abstract

As a sign of porosity and permeability, spontaneous-potential (SP) well logging plays an important role in reservoir division and evaluation. Complete and effective SP logging is helpful to obtain high resolution sandstone-mudstone section and is a reliable basis for oil-gas reservoir interpretation. However, in the actual mining process, distortion or incomplete of SP logging commonly exists due to instrument damage, borehole collapse and other reasons. Moreover, SP re-logging is expensive and difficult to implement. In this paper, we develop an alternative SP logging reconstruction technique based on Bidirectional gated recurrent unit (BiGRU) neural network. By considering the relationship between current logging data and historical and future logging data, and the nonlinear mapping relationship between different logging curves, the intelligent and effective completion of missing logging is realized. Extensive experiments are carried out in the Jiyang Depression, Shengli Oilfield to verify the effectiveness of the proposed method. The results show that BiGRU has higher reconstruction accuracy than gated recurrent unit (GRU), support vector regression (SVR) and linear regression (LR), which provides a new development direction for logging reconstruction.

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  1. Well Logging Reconstruction Based on Bidirectional GRU

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    ICCIR '22: Proceedings of the 2022 2nd International Conference on Control and Intelligent Robotics
    June 2022
    905 pages
    ISBN:9781450397179
    DOI:10.1145/3548608
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 14 October 2022

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