دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a high rate of flow from a newly drilled well.

the early, higher rate production that comes from the larger pores, fractures and vugs that empty quickly. Delivers a small, high rate flow every time the well is shut-in (recharges) and is brought back on line.

n: the vertical rotating fluid channel on the bit or enlarger

n: the rubber protection valve on whose outskirt there are several flowpath trough which benefits the fluid flowing

n: which is joined with the bottom of drill stem and lied under the cementer opening sleeve.The tool of FO cementer collar valve orifice is closed after cementing completed.

n: which is joined with the drill pipe or the bottom of flow string and lied under the FO cementer closing sleeve,used to the pressure of drill stems weight to open the FO cementer collar valve orifice .

n: a check valve at the inlet end of the suction pipe of a pump that enables the pump to remain full of liquid when it is not in operation.

n: a unit of measure of twisting force, or torque. The amount of energy required to move 1 pound 1 foot vertically. The metric equivalent is the centimetrekilogram. or, in SI units, the joule.

n: the rock surface forming the underside of a fault when the fault plane is not vertical-that is, if the dip is less than 90�.Compare hanging wall.

n: a special drilling fluid that contains a salt or an ester of formic acid (formate),which is chemically combined with another element such as potassium or cesium. Formate fluids are very stable at high temperatures and can be made very dense (heavy) without adding weighting materials such as barite. Formate fluids are used as completion fluids because they minimise formation damage. See completion fluid, formation damage.