دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a specific quantity of material that is processed, treated. or used in one operation. 2. in corrosion control, a quantity of chemical corrosion inhibitors injected into the lines of a production system. 3. in oilwell cementing, a part of the total quantity of cement to be used in a well. 4. in pipelining, a quantity of one weight or type of crude or liquid product pumped next to one of different weight or type.

n: in oilwell cementing, the pumping of cement in partial amounts, or batches, as contrasted with pumping it all in one operation.

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: The operation fixing casing or liner with cement slurry below 4000m. It is more complicated than cementing in augering due to small annular and high pressurem high temperature.

n: in oilwell cementing, the fluid. usually drilling mud or salt water, that is pumped into the well after the cement is pumped into it to force the cement out of the casing and into the annulus.

n: in oilwell cementing, the maximum ratio of water to cement that will not cause the water to separate from the slurry on standing.

n: the maximum ratio of water to cement when cement does not produce separation water.

n: the degree that displace the cement volumn in the annular when well cementing.

n: the cement most widely used in oilwells. It is made from raw materials such as limestone, clay or shale, and iron ore.

n: The product obtained by pulverizing clinker consisting essentially of hydraulic calcium silicates. Portland cement is the most common type of cement used for oil- and gas-well cementing.

a general class of cement that encompasses the most common cements used in construction and the oil field.

n: After well cementing and fixing casing head and preventer,testing on casing head and preventer before drilling plug.

n: Its achieved by fixing a fractional collar at the designed position of casing,which usually be used in deep well cementing .