دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The sulfur prevention casing made of C or L steel grade pipe.

n: Increasing the qauntity of wire rope of the crown block and hoisting block system when arrival to definite depth.

a fractional interest in a project retained by a previous owner.

n: a cast-iron or magnesium drillable tool consisting of a packing assembly and a back-pressure valve. It is used to close off the annular space between tubing or drill pipe and casing to allow the placement of cement or fluid through the tubing or drill pipe at any predetermined point behind the casing or liner, around the shoe, or into the open hole around the shoe.

n: A kind of iron casting tool with drillability.

n: a substance added to cement to prolong the setting time so that the cement can be pumped into place. Retarders are used for cementing in high-temperature formations.

n: A chemical additive used to increase the thickening time of cement slurries or similar fluids that may have a limited pumping time. The increased pressure and temperature typically associated with deep wellbores requires the use of such performance-enhanc

a chemical that slows a reaction. In cementing, retarders slow the set time of the cement and prolong the pumpability of the cement.

n: The amount of time a liquid stays in a vessel. The retention time assures that equilibrium between the liquid and gas has been reached at separator pressure. The retention time in a separator is determined by dividing the liquid volume inside the vessel b

the time, based on the separator volume and shape and the fluid flow rate that produced fluids spend in a separator. It is based on the time needed to separate an emulsion.

n: a device that measures the saturation, or the amount, of each fluid in a core sample by distilling the fluid from the core with heat. Also called a retort still.

n: a bit that can be changed by wireline operations without withdraw- ing the drill string. Field tests have indicated its economic feasibility, but its practicabil- ity is undetermined.

n: The bit can be replaced by wire rope and not need to tripping.

a retrievable plug set in a non-profile segment of the downhole pipe string.