دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: in tank sampling, a sample obtained with a thief to determine the amount of material at the bottom of the tank that cannot be sold.

n: Adding water in the water-base drilling fluid , which can decrease the density and thickness of fluid.

mud with water as the external phase. May contain clays, polymers, or even an internal oil phase.

n: a reduction in the permeability of a formation caused by the invasion of water into the pores.

n: A condition caused by an increase in water saturation in the near-wellbore area. Water block typically forms during the drilling phase of a well, when the near-wellbore area is exposed to a relatively high volume of filtrate from the drilling fluid. The i

a relative permeability problem usually occurring in a gas zone. Highest potential formations for water blocks are low pressure gas sands (<0.25 psi/ft pore pressure),with small pore throats (<10 microns),lower permeability (<100 md),and when using wat

n: water accumulated at (or sometimes added to) the bottom of the oil in a storage tank.