دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: to cease producing oil and gas from a well when it becomes unprofitable or to cease further work on a newly drilled well when it proves not to contain profitable quantities of oil or gas. Several steps are involved: part of the casing may be removed and salvaged;one or more cement plugs are placed in the borehole to prevent migration of fluids between the different formations penetrated by the borehole;and the well is abandoned. In most oil-producing states, it is necessary to secure permission from official agencies before a well may be abandoned.

to cease efforts to produce or inject fluids in a wells and to plug the well sufficiently to protect the environment and the ability to redrill and develop other reserves at a later date.

n: the average reservoir pressure at which an amount of gas insufficient to permit continued economic operation of a producing gas well is expelled. abd, abdn abbr: abandoned;used in drilling reports.

The minimum pressure of the reservoir when the wells are abandoned.

n: the force in dynes that a stationary flat plate with a surface area of 1 square centimetre exerts on a similar parallel plate 1 centimetre away and moving in its own plane with a velocity of 1 centimetre per second, the space between the plates being filled with the liquid in question. It is a measure of the resistance that the liquid offers to shear. absolute error n: the difference between the result of a measurement and the true value of the measured quantity as determined by means of a suitable standard device.

a filter rating that purports to set the maximum size of an opening in a filter or the maximum size of the particle that can pass through the filter. The definition varies with use and company.

a chemical, heat, radiation, or mechanical action that starts or accelerates a chemical reaction.

abbr: circulated;used in drilling reports. circle wrench n: see wheel-type back-off wrench.

advanced technology parts.

n: in tank sampling, a sample that consists of proportionate parts from several sections of the tank.

abbr: bottom of ;used in drilling reports.

n: The pressure within a system caused by fluid friction or an induced resistance to flow through the system. Hydraulic Thru-Tubing Fishing tools are typically operated using back pressure created by fiow through a nozzle.

a pressure caused by a restriction or fluid head that exerts an opposing pressure to flow.