Effect of Fluid inside Casing on Resistivity Logging Response through Casing

Abstract:

With the help of the transmission line measure method of formation resistivity through casing, we have presented a calculated approach of potential distribution on the metal casing and in the fluid inside casing, realized the calculation of the resistivity logging response(RLR)of formation, and made inspection for two measure methods of formation resistivity. The numerical computing results show that the fluid in casing hardly has influence on the RLR of formation, but, when there are different kinds of fluids in casing, the interface of fluids has an obvious logging response for RLTA, and the response range of fluid interface is about the length of tool electrode spacing. The calculating examples also show that the measure and computation methods of formation resistivity for logging response have a larger effect when inside casing with fluid.

• Periodical: Advanced Materials Research (Volumes 361-363)
• Pages: 70-75
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.361-363.70
• Online since: October 2011
• Authors: Fu Ping Liu, An Ling Wang, Ming Chang Zhang
• Keywords: Fluid in Casing, Logging Response, Resistivity Logging Through Casing (RLTA), Transmission Line Approach

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