دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a device set in a tubing coupling to facilitate the landing of pressure bombs (recorders).

hanger for bottom-hole pressure recorder (bombs).

n: 1. the pressure at the bottom of a borehole. It is caused by the hydrostatic pressure of the wellbore fluid and, sometimes, by any back-pressure held at the surface, as when the well is shut in with blowout preventers. When mud is being circulated, bottomhole pressure is the hydrostatic pressure plus the remaining circulating pressure required to move the mud up the annulus. 2. the pressure in a well at a point opposite the producing formation, as recorded by a bottomhole pressure bomb.

n: The pressure at the bottom of the borehole, or at a point opposite the production formation.

n: a pressuretight container (bomb) used to record the pressure in a well at a point opposite the producing formation.

n: an instrument to measure bottomhole pressure. Also called bottomhole pressure bomb.

a downhole device used to collect reservoir samples at pressure.