دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The casing float in which is installed by check valve. There are two kinds of ball float collar: cement lining and aluminum alloy lining.

n: The casing float shoe in which is installed by check valve. There are two kinds of ball float shoe: cement and aluminum alloy.

v: 1. to collect a mass of sticky consolidated material, usually drill cuttings, on drill pipe, drill collars, bits, and so forth. A bit with such material attached to it is called a balled-up bit. Balling up is frequently the result of inadequate pump pressure or insufficient drilling fluid. 2. in reference to an anchor, to fail to hold on a soft bottom, pulling out, instead, with a large ball of mud attached.

n: The phenomenon that drill bit or drill tool is surrounded by cutting and viscous mud in drilling progress.

n: a flow-control device employing a ball with a rotating mechanism to open or close the tubing.

any of several valves that rotate a ball with a flow passage to allow or deny flow.

a vent in the tubing or treating string open by a drop bar used to fire a perforating gun.

n: see open-hole completion.

a very simple, open hole pay zone completion with a minimum of downhole equipment. Also called an open hole completion. The casing is usually run to the top of the pay and is cemented above the pay only.

n: 1. a flat-decked, shallow-draft vessel, usually towed by a boat. Barges are not self-propelled. They are used to transport oil or products on rivers, lakes, and inland waterways. Also, a complete drilling rig may be assembled on a barge and the vessel used for drilling wells in lakes and in inland waters and marshes. Similarly, well service and workover equipment can be mounted on a barge. 2. an offshore drilling vessel built in the shape of a ship. Unlike a ship, however, it is not self-propelled. Also called a drill barge.

marine vessel without its own propulsion.