Through-Casing Resistivity Logging Signal Acquisition and Processing Techniques

Zheng Guo Yan; Juan Su

doi:10.4028/www.scientific.net/AMR.403-408.2659

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 403-408Through-Casing Resistivity Logging Signal...

Through-Casing Resistivity Logging Signal Acquisition and Processing Techniques

Abstract:

Weak signal detection is the key technique in developing through-casing resistivity logging tool. In this paper, ultra-low-noise preamplifier, oversampling method, sampling integration and sampling average method, digital phase-sensitive detection technique are applied in detecting logging signals and 30nV is achieved. The indoor calibration test and field experiment of through-casing resistivity logging model machine with those weak signal detection techniques were carried out. The result showed that the measurement range of formation resistivity is 0~200 Ω.m.

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Periodical:

Advanced Materials Research (Volumes 403-408)

Pages:

2659-2662

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.403-408.2659

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Online since:

November 2011

Authors:

Zheng Guo Yan, Juan Su

Keywords:

Digital Phase-Sensitive Detection, Oversampling Method, Sampling Integration and Sampling Average, Through-Casing Resistivity Logging, Ultra-Low-Noise Preamplifier

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References

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