دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: mud fluids filter loss is very large, free water seeps into unconsolidated formation resulting in layer swelled.

v: the partial or complete collapse of the walls of a hole resulting from incompetent, unconsolidated formations, high angle or repose and wetting along internal bedding planes. See also heaving and cave-in.

(pronounced sluffing") n: see caving.

n: the partial or complete collapse of the walls of a hole resulting from incompetent, unconsolidated formations, high angle or repose and wetting along internal bedding planes. See also heaving and cave-in.

n: a loosely arranged, apparently unstratified section of rock.

n: The formation that containing lesser cementing material,and havent well solidated between mineral grains.

formations with insufficient cementing agents between the grains to stop movement of individual grains when fluid flows through the formation. Usually less than 2 to 10 psi compressive strength.