دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The ratio of actual SP to static SP.

single point of accountability.

a function where distance is the independent variable and another factor (magnetic, density, amplitude) is the dependent variable.

using short pieces of pipe to property position the top of the string to hang off while keeping the bottom of the string in the correct position and with the correct tension.

the joint of drill pipe used to prevent a tool joint from being in the BOP body

n: the act of ensuring that a pipe ram preventer will not close on a drill pipe tool joint when the drill stem is stationary. A pup joint is made up in the drill string to Iengthen it sufficiently. v: to position the correct number of feet (or metres) or joints of pipe from the packer to the surface tree, or from the rig floor to the blowout preventer stack.

n: the joint of drill pipe that is used in hang-off operations so that no tool joint is opposite a set of preventer rams.

n: 1. a thickened fluid that displaces drilling mud because of the difference in viscosity and weight between the spacer and the mud. Besides carrying lost circulation materials, spacers may be weighted with various inert materials such as fly ash and barite. 2. member of a pipeline construction gang who is responsible for assuring that the exact distance between the beveled pipe ends for a welding process to be used on the joint is maintained. Spacers strike a wedge into the interface between the pipe bevels and then maneuver them to an exact, uniform distance around the entire circumference.

n: A viscous fluid used to aid removal of drilling fluids before a primary cementing operation. The spacer is prepared with specific fluid characteristics, such as viscosity and density, that are engineered to displace the drilling fluid while enabling place

a fluid used between two fluids to prevent contamination.