دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the washover pipe used for unfreezing or the small pipe which is used to dirll off the stem in the well

n: a tool that goes inside pipe lost in a well to provide a firm grip and permit recovery of the fish. Sometimes used in place of a spear.

n: refer topin tap

n: a tool designed to recover equipment lost in a well.

n: A specially designed tool that is attached to the drill string in order to recover equipment lost in the hole.

n: 1. a piece of cloth. rope. or nylon strand used to mart the wireline when swabbing or bailing. 2. an indicator of wind direction used during drilling or workover operations where hydrogen sulphide (sour) gas may be encountered. v:1. to signal or attract attention.2. in swabbing or bailing. to attach a piece of cloth to the wireline to enable the operator to estimate the position of the swab or bailer in the well.

n: the fibaric belt or rope binded on the cable during pumping or fishing


marking the pipe or wireline with a paint stripe.

n: on land rigs, an earthen pit dug at the end of the flare line. Gas is flared over the flare pit to protect the surrounding area from heat and fire.

n: specially manufactured drill pipe that has several pressure- tight joints over the length of the pipe. These joints allow the pipe to bend considerably more than regular drill pipe and are used in directional wells (especially horizontal ones) where the angle of deflection from vertical is relatively abrupt.

n: a lightweight covering of either metal or plastic material designed to float on the surface of the liquid in a tank. Alternatively, it may be supported by a float system so that it is just above the free liquid surface. Used to minimise the evaporation of volatile products in a tank.

n: a tank covering that rests on the surface of a hydrocarbon liquid in the tank and rises and falls with the liquid level. A floating roof eliminates vapour space above the liquid in the tank and conserves light fractions of the liquid.

n: a lightweight metal or plastic covering that is arranged to float on the surface of a liquid in a container to retard evaporation.

n pi: chemicals that, when added to a liquid, cause it to coagulate.

n: the card depoist forming for the accumulation of clay particle ，with weak binding strength and easy to break up when agitate while be easy to recover the original structure