دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a rotary drilling rig on which steam engines operate as prime movers. High-pressure steam is furnished by a boiler plant located near the rig. Steam rigs have been replaced almost totally by mechanical or electric rigs.

n: A kind of rotary equipment powered with steam engine.

n: salt of stearic acid that is a saturated, 18-carbon fatty acid. Certain compounds, such as aluminum stearate, calcium stearate, and zinc stearate, are used in drilling fluids as defoamers or lubricants. Stearates can also be used as surfactants in air drilling to prevent small quantities of water from creating mud that could clog the hole.

n: A kind of ring shaped corrosion spool manufactured by steel product of drill tool,usually be used in experiment of down hole corrosion.

n: a rigid offshore drilling platform used to drill development wells. The foundation of the platform is the jacket, a tall vertical section made of tubular steel members. The jacket. which is usually supported by piles driven into the seabed, extends upward so that the top rises above the waterline. Additional sections that provide space for crew quarters, the drilling rig, and all equipment need to drill are placed on top of the jocket. See platform rig.

n: a roller cone bit in which the surface of each cone is made up of rows of steel teeth. Also called a milled-tooth bit or milled bit.

n: A kind of cone bit ,its tooth are shaped by milling cones blank.

n: a directional survey instrument used in combination with a deflected downhole motor. It shows, on a rig floor monitor, the inclination and direction of a downhole sensing unit.

n: It is consists of down hole equipment ,surface equipment and electric cable.

n: material used to hold back the force of an explosion, such as sand. gravel, or a cement plug placed in a well above a nitroglycerine charge.

n: The impress that be printed on the face of drill tool and joint by steel formwork.