دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a test that measures the reservoir pressure of the well, obtained at a specific depth or at the midpoint of the producing zone. A flowing bottomhole pressure test measures pressure while the well continues to flow;a shut-in bottomhole pressure test measures pressure after the well has been shut in for a specified period of time. See bottomhole pressure. bottomhole pressure gauge.

n: I. the difference between static and flowing bottomhole pressures. 2. the distance between the static level and the pumping level of the fluid in the annulus of a pumping well.

the difference between two pressures. Completion drawdown is the pressure differential from the formation near the wellbore to the wellbore.

pressure n: pressure at the bottom of the wellbore during normal oil production.

n: a bottomhole pressure test that measures pressure while the well is flowing. See bottomhole pressure test.

n: (PI) a well-test measurement indicative of the amount of oil or gas a well is capable of producing. It may be expressed as PI=q+(Ps-Pf) where.-- PI = productivity index (barrels/day or thousand cubic feet/day per pounds per square inch of pressure differential) q = rate of production (barrels/day or thousand cubic feet/day) Ps = static bottomhole pressure (pounds per square inch) P f = flowing bottomhole pressure (pounds per square inch).

a comparison of the productivity of a completion to the productivity of an ideal, undamaged open hole. Labeled PI or J.