دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

remediation technique to strip volitile contaminants from contaminated ground water after a spill. Works to oxidize components and to activate bacteria that can digest hydrocarbons.

n pi: a device, operated by air or hydraulic fluid, that fits into the opening in the rotary table when the drill stem must be suspended in the wellbore (as when a connection or trip is being made). Automatic slips, also called power slips, eliminate the need for roughnecks to set and take out slips manually. See slips.

n: A tool operated by pneumatics or hydraulic pressure.Used for chafing the drill stem when pipe connection or tripping.

n: The tubular sub connected below or above DSTT packer. Used to protect manometer when tripping.

n: The tripping jamming due to borehole wall collapsing, low-performance drilling fluid or cuttings accumulating.

n: The lifting tool used to hang pipe box coupling when tripping operation.

v: Declutch the clutch to drive drill fixture and tripping because using original motive.

n: The cementing method that pumping delayed setting cement into drill pipe before casing installation and tripping the bottom of casing or liner into uncured cement slurry. It can make cement sheath outside the casing more smooth.

n: during tripping or pipe connection ,the pipe is out of control because of the equipment failure or manipulate miss

n: a fitting placed in the blowout preventer stack to provide space between preventers for facilitating stripping operations, to permit attachment of choke and kill lines, and for localizing possible erosion by fluid flow to the spool instead of to the more expensive pieces of equipment.

n: a kind of link with flange or keeper on each , and its inner diameter equals to the drift diameter at least




a section of the BOP that allows side ports for choke and kill lines.

n: a method to hold the drill pipe in which just two elevators and an elevator bail are used during tripping and pipe connection