دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: I. the actual volume delivered through a meter during a proving or metering operation. 2. a volume of delivered liquid that is measured by a meter. A batch or tender may also be called a delivery. See batch.

n: three-wire connection used in three-phase circuits, resembling the Greek letter delta (A). Used alone or in various combinations with wye connections.

mouth of river deposits, usually fan shaped with significant variation in composition, sorting and thickness. Quality of the reservoir rock may vary widely.

n: the mass or weight of a substance per unit volume. For instance, the density of a drilling mud may be 10 pounds per gallon, 74.8 pounds/cubic foot, or 1,198.2 kilograms/cubic metre. Specific gravity, relative density, and API gravity are other units of density.

n: Mass per unit volume expressed in pounds per gallon (ppg),grams per cubic (g/cc),or pounds per cubic ft (lb/cu.ft). Drilling-fluid density is commonly referred to as mud weight.


the mass per volume of a substance. Density of fresh water is 8.33 pounds per gallon or 1 gram/cc.

n: a special radioactivity log for open-hole surveying that responds to variations in the specific gravity of formations. It is a contact log (i.e., the logging tool is held against the wall of the hole). It emits neutrons and then measures the secondary gamma radiation that is scattered back to the detector in the instrument. The density log is an excellent porosity-measure device, especially for shaley sands. Some trade names are Formation Density Log, Gamma- Gamma Density Log, and Densilog.

one of a number of logging techniques that estimate the density of the formation.

n: (DOl) a federal department set up as the nations principal conservation agency. The DOl is responsible for nationally owned lands and natural resources. It fosters wise use of land and water resources, protects fish and wildlife, preserves the environmental and cultural values of national parks and historic places, and provides for the enjoyment of life through outdoor recreation. Address: 1849 C Street NW;Washington, DC 20240;(202) 208- 3100.

graphs that show influence of a variable on the basic measurement;e.g., temperature, hole diameter, mud resistivity, bed thickness, adjacent bed resistivity, etc.