دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: Installation of conductor line at well head.

n: A well installed with conductor line.

n: a small-diameter conductive line used in electric wireline operations, such as electric well logging and perforating, in which the transmission of electrical current is required. Compare wireline.

n: A small-diameter wireline that carries electric current. This is used for logging tools and steering tools.

n: signals transmitted from an instrument located downhole to a receiving monitor on the surface-a surfacereadout instrument. Downhole telemetry may be transmitted via a special wireline or via mud pulse (much as radio signals are transmitted through the air). Frequently, downhole telemetry is employed in determining the drift angle and direction of a deviated wellbore. See measurement while drilling.

n: The process whereby signals are transmitted from a downhole sensor to a surface readout instrument. This can be done by a conductor line (as on steering tools) or by mud pulses (as in MWD tools (q.v.)).

n: see conductor line.

n: the tools which is lowed into the non-magnetic drill collar by conductor line and used to receive and transmit the directional data

n: any small device that, when brought into contact with or inserted into a system, can make measurements on that system. In corrosion, probes can measure electrical potential or the corrosivity of various substances to determine a systems corrosive tendencies.

n: a steering tool device that id lowered on the end of a conductor line to fit inside the orienting sub.

n: a formation fluid sampling device, actually run on conductor line rather than wireline, that also logs flow and shut-in pressure in rock near the borehole. A spring mechanism holds a pad finnly against the sidewall while a piston creates a vacuum in a test chamber. Formation fluids enter the test chamber through a valve in the pad. A recorder logs the rate at which the test chamber is filled. Fluids may also be drawn to fill a sampling chamber. Wireline formation tests may be done any number of times during one trip in the hole, so they are very useful in formation testing.

a formation fluid sampling device.

n pi: the lowering of mechanical tools, such as valves and fishing tools, into the well for various purposes. Electric wireline operations, such as electric well logging and perforating, involve the use of conductor line, which in the oil patch is commonly but erroneously called wireline.

n: The operation that running all kinds of mechanical tool through wireline.

n: the recording of subsurface characteristics by wire line (actually conductor line) tools. Wireline well logs include acoustic logs, caliper logs, radioactivity logs, and resistivity logs.

A continuous measurement of formation properties with electrically powered instruments to infer properties and make decisions about drilling and production operations. The record of the measurements, typically a long strip of paper, is also called a log.