The Research of Borehole-Ground DC Method Detecting Anomaly of Underground Dynamic High-Resistivity Conductor and Case Hole Effect

Abstract:

In exploration of coalbed methane, the release and accumulation of absorbed gas driven by underground water is equal to existence of high-resistivity conductor. Application of numerical modeling conducted with finite difference to analyze anomaly sounding corresponding to underground high-resistivity conductor in borehole-ground DC method, and research of casing effect for DC method combining with physical modeling, may attribute to development of borehole-ground DC method which is capable for exploration of coalbed methane.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 1639-1646
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.1639
• Online since: May 2012
• Authors: Shu Jie Zhang, Jian Sheng Wu, Ping Song Zhang
• Keywords: Anomaly Observation, Borehole-Ground DC Mehod, Casing Effect, Coalbed Methane (CBM), Finite Difference

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