دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a cylindrical container with a valve used to release small batches of cement in a remedial cementing operation.

n: A cylindrical container with valves, used to dump cement slurry in drilling plug.

n: 1. a portion of cement placed at some point in the well bore to seal it. 2.a wiper plug. See cementing, wi per plug.

n: (1) a portion of cement placed at some point in the wellbore to seal off the well;(2) a device used during a primary cement job to separate the cement slurry from contaminating fluids in the casing. A wiper plug is pumped ahead of the slurry and a shut-o

a plug of cement set by various methods that plugs the tubulars or the open hole.

the time after mixing of the cement slurry before the cement becomes so viscous that it cannot be pumped.

n: The hydraulically operated valve which provides a temporary circulating port for cement slurry entering into the annular. Installed in the casing or liner.

n: The volume of cement slurry shrinks due to dehydration when cement slurry becomes from liquid to solid.

n: the application of a liquid slurry of cement and water to various points inside or outside the casing. See primary cementing, secondary cementing. squeeze cementing. cementing barge n: a barge containing the cementing pumps and other equipment needed for oilwell cementing in water operations.

v: To prepare and pump cement into place in a wellbore. Cementing operations may be undertaken to seal the annulus after a casing string has been run, to seal a lost circulation zone, to set a plug in an existing well from which to push off with directional

n: A kind of afflux pipe with several imports and valves, used for cementing and connecting several cement injection lines. Controlling pressure and circulating rate and sending cement slurry to cement head.

n pi: a slurry of portland cement and water and sometimes one or more additives that affect either the density of the mixture or its setting time. The portland cement used may be high early strength, common (standard),or slow setting. Additives include accelerators (such as calcium chloride),retarders (such as gypsum),weighting materials (such as barium sulphate),lightweight additives (such as bentonite),or a variety of lost circulation materials (such as mica flakes).

n: The bonding material for cementing.

n: (cgs) a variant of the metric system in which the measures are founded on the centimetre, gram, and second rather than directly on the kilogram and metre.

n: (cp) one-hundredth of a poise;a measure of a fluids viscosity, or resistance to flow.

viscosity measurement, 1/100th of a poise.