Primary cementing [videorecording] /
Casing and cement is needed to prevent caving in the hole; protect freshwater zones from pollution; exclude water from the producing formation; and permanently seal off high-pressure zones, zones of lost circulation, and other troublesome formations. This video follows the progress of a well and cre...
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| Jezik: | eng |
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[Austin, Tex.] : Petroleum Extension Service, University of Texas at Austin,
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