دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: when press the cement to the fracture layer,often fistly inject moderate filter loss water fluid to fill up the original fracture and porous channel.

n: all or a fractional part of the interest of a lessee (grantee) under an oil and gas lease. Such interest includes the lessees right to search for, drill, and produce oil and gas from a lease tract subject to royalty payments. The term usually refers to the remaining leasehold or working interest exclusive of any nonoperating interests created and assigned therefrom, such as overriding royalty interests and production payments. Also called operating interest, working interest.

n: a wellbore irregularity caused by penetration of alternating layers of hard and soft formations, where the soft formation is washed out and causes a change of diametrical size.

n: it can be consultation to lay of the individual wire.

n: (LTL) an MMS document sent to offshore lessees and operators to clarify or supplement operational guidelines.

the differential pressure across the mud cake from formation towards the wellbore that will cause some of the mud filter cake to lift off the face of the formation and to re-establish permeability.

n: a device incorporated into an electrical system to prevent damage by heavy surges of high-voltage electricity, such as a stroke of lightning or voltage surges resulting from mishaps in operations.

n: a cement or cement system that handles stable slurries having a density less than that of neat cement. Lightweight cements are used in low-pressure zones where the hydrostatic pressure of long columns of neat cement can fracture the formation and result in lost circulation.

n: organic drilling fluid additives derived from by products of sulphite paper manufacturing processes from coniferous woods. Some of the common salts, such as the ferrochrome, chrome, calcium and sodium, areused as universal dispersants while others are use

a multipurpose additive base derived as a byproduct from paper manufacturing. Used as gellants, fluid loss, drilling additives, etc.