دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a Spar platform with multiple floatation sections. Cellar: a concrete or culvert pipe walled section below ground that often protects and shelters the annular access valves. Also used to house the BOP’s on a drilling well.

n: a thin, transparent material made from cellulose and used as a lost circulation material. See cementing milterials.

n: The transparent membrane made by cellulose. Used for sealing material.

n: See accelerator.

an additive such as calcium chloride, and salt in high concentrations that speeds the set of cement.

n: a substance formed by melting ground limestone, clay or shale, and iron ore in a kiln. Cement kIinker is ground into a powdery mixture and combined with small amounts of gypsum or other materials to form cement.

a chemical additive such as lignosulfonate, salt in low concentration or most muds that slow down the cement.

n: Installed at the suitable position of casing, used for multi-stage cementation.

n: a compressor in which the flow of gas to be compressed is moved away from the centre rapidly, usually by a series of blades or turbines. It is a continuous-flow compressor with a low pressure ratio and is used to transmit gas through a pipeline. Gas passing through the compressor contacts a rotating impeller, from which it is discharged into a diffuser, where its velocity is slowed and its kinetic energy changed to static pressure. Centrifugal compressors are nonpositive-displacement machines, often arranged in series on a line to achieve multistage compression.

n: a machine that uses centrifugal force to separate substances of varying densities. A centrifuge is capable of spinning substances at high speeds to obtain high centrifugal forces. Also called the shake-out or grind-out machine.

n: An item of solids-removal equipment that removes fine and ultrafine solids. It consists of a conical drum that rotates at 2000 to 4000 rpm. Drilling fluid is fed into one end and the separated solids are moved up the bowl by a rotating scroll to exit at t

a device that separates materials by density through a centrifugal motion.

cold filter plugging point.

n: The compounding transmiting and variable speed driving rig whose power package uses multi-line roller chain.