دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a tool that takes bottom hole samples of fluids or solids.

either static (non circulating, non flowing and stable),flowing, or circulating) – temperature at the bottom of the well.

n: The pressure that cement slurry affects the formation when cementing.

n: the pressure exerted on the bottom hull of a columnstabilised semisubmersible drilling rig when the hull is submerged to drilling water depth.

reach final drilling depth.

n: a cement wiper plug that precedes cement slurry down the casing. The plug wipes drilling mud off the walls of the casing and prevents it from contaminating the cement. See cementing, wiper plug. bottompull method n: an offshore pipeline construction technique in which the pipe string remains below the surface while it is towed to its final location.

n: See bottom wiper plug.

in cementing, the first plug pumped in cementing with the two plug system. It isolates the mud and cement slurry and allows passage of the cement slurry when the plug “bumps” or reaches the float shoe or float collar. It is hollow with a diaphragm that is

n: in tank sampling, a sample obtained from the material near the bottom surface of the tank, container, or line at a low point.

a device in a perforating gun that signals through a delayed shot or sound that the detonating cord has fired to the bottom of a gun.