دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a method of detennining optimum weight on bit and overall bit performance. A given amount of weight is put on the bit and the drawworks brake is tied off so that no more weight is applied to the bit as it drills. The time it takes for the bit to stop drilling ahead with the given amount of weight is measured. Different weights are applied and the times are compared to determine which amount is best.

n: a method of testing drilling to define the rotate speed and the
pressure under which the speed is the fast and the

n: the employee directly in charge of a drilling or workover rig and crew. The drillers main duty is operation of the drilling and hoisting equipment, but this person is also responsible for downhole condition of the well, operation of downhole tools, and pipe measurements.

n: The employee of the drilling contractor who is in charge of the drilling rig and crew. His main duties are to operate the drilling equipment and direct rig-floor activities.

n: the device designed for handling the problems of cuttings-carry over and cement in horizontal drilling and high angle deviated hole by British petrol research centre

n: a driller, a derrickhand, and two or more helpers who operate a drilling or workover rig for one tour each day.

n: the teams and groups composed by drillers,derrick hands,drivesr and borers who are on duty for one time a day

n: the supervisor of drilling or workover operations on a rig. Also called a rig manager, rig supervisor, rig superintendent, or toolpusher.

n: the index including drilling speed,unit yardage cost,well devitation, core recovery,qualification rate of well cementation,production efficiency and so on ,used to idicate the drilling reslut-characters of a well,a rig or a facility qualitatively and qua

n: the degree of superior and inferior of the drilled wellbore ,mainly including the wellbore quality ,core recovery, cement job quality and complete quality

n: the amount of time it takes for the liquid clinging to the sides of a tank prover to fall and drip out of the vessel.

n: a tool used to strike the pipe forward when drills the overburden or makes of casing

n: the threaded connector used to connect the washover pipe
and drill pipe