دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a gas that forms an acid when mixed with water. In petroleum production and processing, the most common acid gases are hydrogen sulphide and carbon dioxide. Both cause corrosion, and hydrogen sulphide is very poisonous.

n: The mixture made by gas and water presents acidity. The gas is acid gas. The usual acid gases are hydrogen sulphide and carbon dioxide in oil and gas drilling. Both of them are acrid and hydrogen sulphide is very toxic.


any produced gas, primarily H2S and CO2 that form an acid when produced in water.

n: the quality of being acid. Relative acid strength of a liquid is measured by pH. A liquid with a pH below 7 is acid. See pH.

n: The relative acid strength of liquids as measured by pH. A pH value below 7. See pH.

n: An additive that adjusts acidity and alkalinity of the drilling fluid.

n: a measure of the acidity or alkalinity of a solution, normally expressed as pH. See pH.

n: a measure of the acidity or alkalinity of a solution, normally expressed as ph. See also ph

abbr: an indicator of the acidity or alkalinity of a substance or solution, represented on a scale of 0-14, 0-6.9 being acidic, 7 being neither acidic nor basic (i.e., neutral),and 7.1-14 being basic. These values are based on hydrogen ion content and activity.

hydrostatic pressure.

n: a unit of measure of the acid or alkaline condition of a substance. A neutral solution (such as pure water) has a pH of 7;acid solutions are less than 7;basic, or alkaline, solutions are more than 7. The pH scale is a logarithmic scale. A substance with a pH of 4 is more than twice as acid as a substance with a pH of 5. Similarly, a substance with a pH of 9 is more than twice as alkaline as a substance with a pH of 8.

n: a parameter used to measure the acidity or alkalinity of a substance.