Schlumberger

General Log Quality Control Reference Manual

Date: 12/10/2014

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Quality control of acquired data is an important aspect of logging. Quality control is performed through observation of log responses and quality indicators. To complete the quality control checks, measurement behavior standards and specifications must be available to the users of the data. 

D&M measurements are performed downhole in an environment that cannot be exhaustively described. Therefore, Schlumberger cannot and does not warrant the accuracy, correctness, or completeness of log data. Large variations in well conditions require flexibility in logging procedures. In some cases, significant deviations from the guidelines given in this manual may be observed. These deviations should not affect the validity of the data collected, but could reduce the ability to check its validity. Recognizing and reporting an anomaly helps to make the best use of the data and to improve future logging jobs.

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