دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a sensor, transmission medium, and readout equipment in an operating configuration used to determine the temperature of a liquid for measurement purposes.

n: the measuring error caused by the temperature of a measurement differing from the pertinent reference value.

n: 1. the rate of change of temperature with displacement in a given direction. 2. the increase in temperature of a well as its depth increases.

n: The variance ratio of temperature along with underground depth increasing.


the rate of increase of temperature per unit of depth. Varies in the world with geothermal activity. Usually between 1.1 and 2.2+ oF/100 ft.

n: a survey run in cased holes to locate the top of the cement in the annulus. Since cement generates a considerable amount of heat when setting, a temperature increase will be found at the level where cement is found behind the casing.

n: A record of the temperature gradient in a well. The temperature log is interpreted by looking for anomalies, or departures, from the reference gradient. This reference might be the geothermal gradient, a log recorded before production started or a log rec

a measurement of temperatures along the wellbore. Useful for determining temperatures at any point, static and circulating temperature and tops of cement column. May also be used to locate the top of a fracture if run soon after the frac.

n: the range of ambient temperatures, given by their extremes, within which a transducer is intended to operate.

n: see thermostat.

n: the maximum temperature increase that any part of the motor winding or magnetic structure accessible for measurement with a thermometer will have when the motor is developing its full load.

n: a sensing element and its housing, if any, and defined as the part of a temperature device that is positioned in a liquid the temperature of which is being measured.

products that increase the temperature stability of a material, usually a drilling or workover fluid above its normal expected range.