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USE OF NATURAL LOW LEVEL RADIOACTIVITY OF RAW MATERIALS TO EVALUATE GRAVEL PACK AND CEMENT PLACEMENT IN WELLS
USE OF NATURAL LOW LEVEL RADIOACTIVITY OF RAW MATERIALS TO EVALUATE GRAVEL PACK AND CEMENT PLACEMENT IN WELLS
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机译:利用天然材料的天然低水平放射性评估井中的碎石堆积和水泥沉积
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摘要
Methods for logging a well utilizing natural radioactivity originating from clay based particulates are disclosed. The methods can include utilizing a gravel pack slurry containing a liquid and gravel pack particles to hydraulically place the particles into a gravel pack zone of a borehole penetrating a subterranean formation and obtaining a post gravel pack data set by lowering into the borehole traversing the subterranean formation a gamma ray detector and detecting gamma rays resulting from a native radioactivity of the gravel pack particles. The methods can further include using the post gravel pack data set to determine a location of the gravel pack particles and correlating the location of the gravel pack particles to a depth measurement of the borehole to determine the location height and/or percent fill of gravel pack particles placed in the gravel pack zone of the borehole.
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