دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: One of the mud pulse telemetry systems used in MWD.

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: one of the mud pulse telemetry systems used in MWD(q.v.).

n: one of the mud pulse telemetry systems used in MWD(q .v).

abbr: remote terminal unit.

remote telemetry unit.

n: a telemetry instrument used in the surveying of a directional well. A downhole sensing unit records directional data, which are converted into signal pulses and then transmitted uphole, via conducting wireline or through the drilling fluid, to a monitor. See downhole telemetry.

n: the process of gathering data by electronic or other kinds of sensing devices and transmitting those data to remote points. See downhole telemetry.

conversion of a logging tool measurement to a signal suitable for transmission to the surface.