دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n pI: (USDW) fresh water sources located under the surface that are suitable for use as drinking water supplies.

n: salt domes, depleted gas fields, or other suitable underground formations located in a companys major market areas into which gas is injected during low-demand summer months and from which it is withdrawn during highdemand winter months. May be 20 to 30 feet (6 to 9 metres) thick and can cover many square miles.

under production, short of the allotment or contract volume, that must be accounted for in a contract.

v: to enlarge the wellbore below the casing.

n: To enlarge a wellbore past its original drilled size. Underreaming is sometimes done for safety or efficiency reasons. Some well planners believe it is safer to drill unknown shallow formations with a small-diameter bit, and if no gas is encountered, to t

n: a device used to underream. See underream.

n: The tool that be used to enlarge the diameter of borehole for tripping in casing easily.

n: the amount by which the indicated volume registered by a meter is less than the actual volume that has passed through the meter. Determined by means of a suitable standard device. Compare overregistration.

an oil with less gas than its solubility capacity.

n: The grain that can pass the mesh of seperation screen.

n: a phenomenon that occurs when the polished rod of a sucker rod pump is too short to allow the pumps plunger to travel the full length of its stroke.

lease acreage on which wells have not been completed to a point of testing or allowing production.