دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. in a flowing stream of water, the finer sand, silt, and clay that are carried well off the bottom by the turbulence of the water. Compare bed load, dissolved load. 2. the weight of the drill stem when suspended from the hook.

n: sediment and water that are suspended in oil and that can be separated only by (1) centrifuge with appropriate solvents or (2) extraction by distillation.

n: an additive used to hold the fine clay and silt particles that sometimes remain after an acidizing treatment in suspension;i.e., it keeps them from settling out of the spent acid until it is circulated out.

n: a mixture of small nonsettling particles of solid material gaseous or liquid medium.

n: a mixture consisting of finely divided colloidal particles floating in a liquid. The particles are so small that they do not settle but are kept in motion by the moving molecules of the liquid (Brownian movement).

abbr: salt water;used in drilling reports.

sea water.

n: a hollow, rubber-faced cylinder mounted on a hollow mandrel with a pin joint on the upper end to connect to the swab line. A check valve that opens up- ward on the lower end provides a way to remove the fluid from the well when pressure is insufficient to support flow. v: 1. to operate a swab on a wireline to bring well fluids to the surface when the well does not flow naturally. Swabbing is a temporary operation to determine whether the well can be made to flow. If the well does not flow after being swabbed, a pump is installed as a permanent lifting device to bring the oil to the surface. 2. to pull formation fluids into a wellbore by raising the drill stem at a rate that reduces the hydrostatic pressure of the drilling mud below the bit.

reducing the well pressure below the swab tool by rapid upward movement of a tool or equipment in a wellbore. Swabbing may be intentional using a wireline swab cup tool to lift water or unintentional by fast movement of a pipe or wireline conveyed, large