دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a salt of carbonic acid. 2. a compound containing the carbonate radical (CO3) 3. a carbonate rock.

n: The different carbonate of alkaline earth element.

any of the many rocks composed of calcium carbonate (limestone) or magnesium carbonate (dolomite) or other acid soluble rocks with a common CO3-2 ionic charge. The pores may be poorly connected and matrix permeability (non fractures) are often much lower

n: a sedimentary rock composed primarily of calcium carbonate (calcite) or calcium magnesium carbonate (dolomite).

n: A kind of sedimentary rock whose content of carbonate is over 50%. Mainly consisted of calcite, dolomite and ankerite.

n: a type of sedimentary rock similar to limestone but containing more than 50 percent magnesium carbonate;sometimes a reservoir rock for petroleum.

n: A kind of natural compound whose can be expressed by CaCO3.MgCO3


calcium/magnesium carbonate rock. Dolomite is formed by chemical modification of a limestone.

n: A wellbore that is essentially the same diameter as the bit that was used to drill it. It is common to find well-consolidated sandstones and carbonate rocks that remain gauge after being drilled. For clays, it is common for the hole to slowly enlarge with

a drilled hole with no washouts;the same diameter as the bit.

n: an acid compound, HCI, commonly used to acidize carbonate rocks. It is prepared by mixing hydrogen chloride gas in water. Also known as muriatic acid.

the most common oilfield stimulation acid. A mixture of hydrogen chloride gas in water. Useful for removing calcium scale, some mud and cement damage and very shallow stimulation of formations with some calcium in the flow path.

n: A mineral composed of ferrous carbonate, FeCO3, and having 3.8 g/cm3 specific gravity. It is found as an accessory mineral in some shales and carbonate rocks and also in some barite and hematite ores. FeCO3 is readily soluble in acids and breaks down slow

iron carbonate.