دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

usually differential sticking (by overbalance),but may also include effect of friction and mud cake adhesion to the tubing or drill string.

n: A situation in which the drilling assembly (pipe, drill collars and bottomhole assembly) is stuck in filter cake that was previously deposited on a permeable zone. The pipe is held in the cake by a difference in pressures between the hydrostatic pressure

n: Forming a layer of cementing material of solid grains on the wall of hole when the drilling fluids infiltrating into the layer.

n: see wall hook.

n: see hook-wall packer.

n: Usually means the differential size product made by walnut shell ,which can as the blocking agent of pore leakage zone.

n: the tendency of the drill bit to deviate horizontally parallel to titled strata.

n: (WEP) a government financed, nonprofit corporation of eleven oil and pipeline companies established during World War II to build desperately needed pipelines such as Big Inch and Little Big Inch.

walk around rig inspection.

n: A kind of small sized chamber blender,which have higher rate of shear,usually be used to blend cement slurry.