دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a numerical ranking system that provides an estimate of the force of wind and the height of waves. Higherscale values correlate with higher forces.

n: a nonprofit organisation sup- ported jointly by the American Petroleum Institute and the Society of Automotive Engineers, Inc. It administers work of the CFR and other committees that correlate test work and other studies on fuels, lubricants, engines, and engine equipment. Address: 219 Perimeter Centre Parkway, Suite 400;Atlanta, GA 30346;(770) 396-3400.

v: to relate subsurface information obtained from one well to that of others so that the formations may be charted and their depths and thicknesses noted. Correlations are made by comparing electrical well logs, radioactivity logs, and cores from different wells.

to compare logging and core or other information and account for discrepancies.

n: Schlumberger wireline fishing tool which can retrieve ferrous junk in cased or open hole.

n: A common and inexpensive measurement of the natural emission of gamma rays by a formation. Gamma ray logs are particularly helpful because shales and sandstones typically have different gamma ray signatures that can be correlated readily between wells

n: a distinctive, easily identified rock stratum, especially one used as a guide for drilling or correlation of logs.

n: A widespread distinctive rock unit that can be correlated readily over a large area. The most useful marker beds tend to form rapidly, such as during volcanic or geologically instantaneous depositional events, and have unusual seismic, magnetic, electrica

n: the recording of the resistance of formation water to natural or induced electrical current. The mineral content of subsurface water allows it to conduct electricity. Rock, oil, and gas are poor conductors. Resistivity measurements can be correlated to formation lithology, poros- ity, permeability, and saturation and are very useful in formation evaluation. See electric well log.

n: a kind of logging method in which the resistivity of rock is measured, usually used to evaluate the formation oiliness

vertical seismic profile> Run in a single wellbore. Helps correlate logs with seismic data.