دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a thickening-time tester with a stirring appratus to measure the relative thickening time for mud or cement slurries under predetermined temperatures and pressures.

n: A thickening time tester having a stirring apparatus to measure the relative thickening time for drilling fluid or cement slurries under predetermined temperatures and pressures.

a device with rotating paddles, used to check the pumpability and set time of cement slurries.

n: a switch that turns a motor on and off for preset time intervals, such as 12 hours on, 12 hours off.

n: a substance added to cement to prolong the setting time so that the cement can be pumped into place. Retarders are used for cementing in high-temperature formations.

n: A chemical additive used to increase the thickening time of cement slurries or similar fluids that may have a limited pumping time. The increased pressure and temperature typically associated with deep wellbores requires the use of such performance-enhanc

a chemical that slows a reaction. In cementing, retarders slow the set time of the cement and prolong the pumpability of the cement.

time for cement (usually construction cement) to become rigid. Pumping time and strength development terms are usually used for downhole cementing.

the amount of a material that moves through a plant in a set time.