دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A calcium-based water mud system containing gypsum. Gyp mud can be used for drilling shales, but it is also well-suited for drilling gypsum, anhydrite and salt stringers. An advantage of gyp over lime muds is that the pH of gyp mud need not be so high bec

n: 1. a calcite-rich sediment that may give rise to shaly limestone.2. a drilling mud that is treated with lime to provide a source of soluble calcium in the filtrate to obtain desirable mud properties for drilling in shale or clay formations.

n: a kinds of lime mud that anti-coagulant treated by caustic potash and modified amylum.

n: see potassium lime and modified starch mud.

n: see red-lime mud.

n: a water-base clay mud containing caustic soda and tannates to which lime has been added. Also called red mud.

n: a complex carbohydrate sometimes added to drilling fluids to reduce filtration loss.

n: A drilling-mud additive used to control fluid loss in water muds ranging from freshwater to saturated-salt to high-pH lime muds.