دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: term applied to many heat resistant and chemically inert fibrous minerals, some forms of which are used in certain drilling fluids. It finds only limited use because prolonged exposure can cause respiratory illness.

n: Usually refers to the fibre of different length made by asbestos. Usually used as block agent in porous
thief formation.

n: a formation that absorbs drilling fluid as it is circulated in the well. Lost circulation is caused by a thief formation. Also called a thief sand or a thief zone. thief hatch n: a lidded opening on top of a stock tank. It allows access for measuring the oil level and for taking samples with a device that is lowered into a tank to take an oil sample at any depth. The sample will subsequently be used to determine the quality and sediment and water content of the oil in the tank.

n: see tube sample. thief sand n: see thief formation. thief zone n: see thief formation.