دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

Empirical relationships between the formatu=ion resistivity factor, the porosity, water saturation and the restivity of the fluid in the pore in clean, granular rock.

n: a record that indicates the presence of hydrocarbons by measuring carbon atoms and that reveals the presence of water by measuring oxygen atoms. Oil and water saturations can be closely approximated without the requirement of adequate salinity of known concentration to calculate saturations (as in resistivity and pulsed neutron surveys).

the fraction of the pore space occupied by water when the hydrocarbon content is at maximum. This level of water can only be reduced below this level by flow of very dry gas that evaporates the water. Rewetting of a core with saturation below the irreduci

a production or injection well logging technique where the zones is logged for water saturation, oil saturation or temperature, followed by fluid injection, followed by another logging pass. Data available include changes in saturations, quantitative/qual

n: the ratio of the mobility of a driving fluid (water or a chemical solution at residual oil saturation to the mobility of the driven fluid (oil) at connate water saturation. The mobility ratio affects the sweep efficiency of an improved recovery project.

a comparison of the ability of a fluid to move through another fluid or to displace the fluid.

n: a measuring instrument run inside casing to obtain an indication of the presence or absence of hydrocarbons outside the pipe, to determine water saturation in a reservoir behind casing, to detect water movement in the reservoir, to estimate porosity, and to estimate water salinity.

n: a special casedhole logging method that uses radioactivity reaction time to obtain measurements of water saturation, residual oil saturation, and fluid contacts in the formation outside the casing of an oilwell.

the exponent, n, in the water saturation term in the equation that relates resistivity to water saturation.

water saturation of the uninvaded zone.