دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: in tanks with floating roofs, the vertical range in which the gauging measurements are not accurate.

n: a pipe-shaped device with a restriction, usually an orifice or nozzle, that is used to measure the velocity of gas flow during an open-flow test of a gas well.

n: a wellbore that has been unintentionally drilled in a direction other than vertical. It usually occurs where there is a section of alliterating hard and soft strata steeply inclined from the horizontal.

n: A wellbore that has deviated from the vertical. Crooked holes usually occur where there is a section of alternating hard and soft strata steeply inclined from the horizontal.

a wellbore drilled in excess of the maximum allowable dogleg.

n: when several producers, either voluntarily or by state regulation, pool acreages to form a unit." They may cross-assign their leases to one another, creating a common obligation to each royalty owner.

n: The jet stream flows along bottom due to resistance of bottom in jet drilling. It is favour of cleaning cuttings.

flow between formations via a connected wellbore. Crossflow, as seen by downhole cameras, can occur with the wellbore full of fluid and the appearance of a dead well at surface.

n: a process of molecular bridging of polymers with other chemical substances that alters viscosity and shear rates to enhance lifting of bit cuttings and increase drilling rates.

two or more log responses or other variable records plotted on an X-, Y- axis.

n: I. the property of atomic nuclei of having the probability of collision with a neutron. The nucleus of a lighter element is more likely to collide with a neutron than is the nucleus of a heavier element. Cross section varies with the elements and with the energy of the neutron. 2. a geological or geophysical profile of a vertical section of the earth.