دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a completion device that can be operated to provide a flow path between the production conduit and the annulus. Sliding sleeves incorporate a system of ports that can be opened or closed by a sliding component that is generally controlled and operated by

n: a special saddle, or cradle, that holds pipe on a vertical support member in the lowering-up type of pipe laying. The slide-and-guide allows longitudinal movement of the pipe caused by d1ermal expansion and contraction. See lowering-up.

the rate of penetrating while sliding the pipe (not drilling) in a horizontal).

n: a royalty paid when the percentage varies with the volume of production.

n: a 1. special device placed in a string of tubing that can be operated by a wireline tool to open or close orifices to permit circulation between the tubing and the annulus. It may also be used to open or shut off production from various intervals in a well. Also called circulation sleeve, slidingsleeve nipple. 2. a device in a packer that prevents fluid from flowing from the tubing into the annulus.

a downhole piece of equipment in a tubing string that allows flow from annulus to tubing. Usually opened and closed by wireline.

the time spend sliding the drill pipe along the wellbore when leaving or re-entering a well.

n: see sliding sleeve.

n: An inexact term describing a borehole (and associated casing program) significantly smaller than a standard approach, commonly a wellbore less than 6 in. in diameter. The slimhole concept has its roots in the observed correlation between well costs and vo

a smaller well. Thought to be cheaper to drill, but much more expensive to repair or workover and often limited on fluid flow rate potential.