Permanent Downhole Gauge Data Interpretation


Khong Chee Kin







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This work investigated methodology for the interpretation of data from permanent downhole pressure gauges. The algorithms developed previously by Athichanagorn (1999) were evaluated to investigate their effectiveness and weaknesses. Additional data processing steps were introduced to resolve deficiencies encountered while evaluating the robustness of existing algorithms. The specific issues that required attention were: step outlier removal from the data, setting processing parameters in the Wavelet and Window programs, refinement of break points from those detected by the Wavelet program and the initial estimates of unknown flow rates. With these additions, the algorithms were used to manipulate actual field data with sufficient reliability.

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