Comprehensive Treatment Technique and Measures to Drill in Complex Formation in a Mining Area
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    Abstract:

    aiming at the problems existing indrilling construction in complex formation, summing up experience and lessons, comprehensive treatment technique and measures including high efficiency long life wireline core bit, casing off tectonic belt and hole wall protection with good performance mud were adopted. As a result, drilling efficiency and hole quality were increased significantly and good economic benefit was obtained.

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  • Received:July 31,2012
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