- spud casing
- noun
: a well in the hull of a dredge through which a spud can be raised or lowered
Useful english dictionary. 2012.
Useful english dictionary. 2012.
Spud — In the oil and gas industry, the process of beginning to drill a well. Initially a larger drill bit is used to drill a surface hole, which is lined with casing and cement to protect groundwater. After the surface hole is completed, the main drill … Investment dictionary
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spudding bit — noun : a broad dull drilling tool used for the preliminary boring of wells through earth down to rock or other solid substrata * * * spudding bit noun (mining) A large drill bit for making an initial bore hole, eg into which the casing of an oil… … Useful english dictionary