دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the valve located above the dual closed-in-pressure valve ,and when this valve is opened the fluid in the pipe inverse circulation out of the pipe

n: a kind of valve joined to the top of the drill stem test tool ,and can be closed two times using the rotation of the drill pipe

n: a method to get pay formation data(ratio of the formation damage,production capacity,permeability) in which the dual CIP valve is used to get the closed-in-pressure value

n: a log designed to provide the resistivity measurements necessary to estimate the effects of mud filtrate invasion into the formation surrounding the wellbore so that more reliable values for the the formation resistivity may be obtained. The resistivity curves on this log are made by deep-, medium-, and shallow-investigation induction. Visual Observation of the dual induction focused log can give valuable information regarding invasion, porosity, and hydrocarbon content. The three curves on the log can be used to correct for deep invasion and obtain a better value for formation resistivity. Compare induction survey.

n: the collar cross with two vertical through hole,used to dual completion

n: all the lamellar components are casted into a whole soffione
of dual completion

n: the equipments which compose the valve ,pipe,bridge piece
,and relevant accessories of the double-barrelled collar and
bore frame

n: the collar of dual completion composed by double-barrelled quadrant valve and double-barrelled valve

a wireline or tubing run into a well with a dummy piece of equipment of the same size, shape and stiffness of a valuable or unrecoverable piece of equipment to make sure the equipment can be placed.

n: a blanking valve placed in a gas lift mandrel to block off annular communication to the tubing.

a solid body (non flowable) gas lift valve that “dummies off” a gas lift mandrel to seal the GLM or pocket.