دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A tool for tight test of casing. See cup tester.

n: The ratio between the consumed work of breaking the rock and flexible strained work before breaking the rock when measuring hardness of rock with Shis hardness tester.

n: a thickening-time tester having a stirring apparatus to measure the relative thickening time for mud or cement slurries under predetermined temperatures and pressures.

n: a thickening-time tester with a stirring appratus to measure the relative thickening time for mud or cement slurries under predetermined temperatures and pressures.

n: A thickening time tester having a stirring apparatus to measure the relative thickening time for drilling fluid or cement slurries under predetermined temperatures and pressures.

a device with rotating paddles, used to check the pumpability and set time of cement slurries.

n: A kind of packing and testing tool. Connected with drill pipe and tripped into the casing to close brake of pipe or multifunction BOP.

n: a high-pressure stainless steel or nickel-plated brass chamber with a magnifying window, a sample inlet. a pressure gauge, a tripod socket. a gas outlet. and an angle-mounted mirror. It ascertains dew point by observing the temperature and the pressure at which condensation occurs on and disappears from the mirror.

n: An instrument used to measure the friction coefficient of the mud cake

n: (DST) the conventional method of formation testing. The basic drill stem test tool consists of a packer or packers, valves or ports that may be opened and closed from the surface, and two or more pressure-recording devices. The tool is lowered on the drill string to the zone to be tested. The packer or packers are set to isolate the zone from the drilling fluid column. The valves or ports are then opened to allow for formation flow while the recorders chart static pressures. A sampling chamber traps clean formation fluids at the end of the test. Analysis of the pressure charts is an important part of formation testing.

n: during drilling or affter well completation ,lower the drillstem tester into the layer to make the pressure build up test so as to eatimate the layers and the fluid parameters

n: a kind of instrument which can proceed filtration experiment of drilling fluid under the situation of circulation

n: refer toexternal tester