دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

unproductive rocks, usually igneous or metamorphic, at the bottom of a sedimentary rock sequence.

n: (BS&W) see sediment and water (S& W). form thick sequences of sedimentary rock. 2. the area drained by a stream and its tributaries. 3. a geologii: structure in which strata are inclined toward a common centre.

the solids and water entrained in crude oil.

a large area with a general containment and an often thick accumulation of rock.

n: a device placed in the drill or work string that catches debris when a drillable object is being milled or drilled downhole.

n: an expandable, cylindrically shaped gripping mechanism that is fitted into an overshot to retrieve fish from the borehole. See grapple.