Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Eric B. Molz0
William Madigan0
Philip L. Kurkoski0
Gamal A. Hassan0
Date of Patent
September 29, 2009
0Patent Application Number
117702090
Date Filed
August 10, 2007
0Patent Primary Examiner
Patent abstract
A logging-while-drilling density sensor includes a gamma ray source and at least two NaI detectors spaced apart from the source for determining measurements indicative of the formation density. An analytic function based on a heuristic model is used to predict the measured response as a function of offset, mud density and formation density. The model may be used to provide a caliper measurement where acoustic caliper data are unreliable.
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