دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

an elongated lens of sand formed during distribution of sediment in a delta.

n: pipeline construction workers responsible for welding fabrication assemblies into the line. The fabrication crew works independently of the rest of the spread. face mask n: a mask made of a rubber frame surrounding a clear, flat lens, used to seal all or a portion of a divers face from the underwater environment.

n: 1. a porous, permeable, irregularly shaped sedimentary deposit surrounded by impervious rock.2. a lenticular sedimentary bed that pinches out, or comes to an end, in all directions.

a permeable, often small sedimentary deposit bordered by impermeable rock.

n: a hydrocarbon reservoir consisting of a porous, permeable, irregularly shaped sedimentary deposit surrounded by impervious rock. See lens.

n: a hindrance to movement of fluids within the formation rock of a reservoir. Permeability barriers include obvious problems, such as shale lenses and calcite or clay deposits, and less obvious ones, such as porosity changes.

n: packed bed that surrounded permeable bed, it is impervious bed or poor permeable bed.




a barrier to movement of a fluid through the rock. This may be a change in the rock where the pores are no longer connected or even present, or secondary mineral growth that filling in the pore throats and natural fractures. In one sense, a permeability b

n: see lens.