دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a form of mechanical weathering where loose fragments are transported with water or wind.

differences in rock – segments showing different responses when measured.

remediation technique that introduces natural hydrocarbon digesting bacteria and materials such as enzymes to remove hydrocarbons from soil, water or even air.

a segment of geoscience where fossils are used to date or identify a reservoir.

n: an extraction plant without fragmentation facilities.

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: a mass of ice fragments.

n: a conglomerate rock composed largely of angular fragments greater than 0.08 inch (2 millimetres) in diameter.

fragmented (not wear rounded) grains. Rock along moving faults may have this texture.

n: the breaking of solid rock into coarse, angular fragments by faulting or crushing.

rock fragments that spall or break off the wellbore walls. Usually found as fill in the hole.