دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

abbr: equivalents per million. EP mix abbr: ethane-propane mix.

equivalents per million. The epm is equal to the ppm divided by the equivalent weight.

n: (epm) the unit chemical weight of solute per million unit weights of solution. The epm of a solute in solution is equal to the ppm (parts per million) divided by the equivalent weight.

n: 1. water that has little or no salt dissolved in it.2. underground water, generally located near the surface, that does not contain a large amount of salt and from which most underground drinking water supplies are drawn.3. inland surface water, such as lakes, streams, and ponds, that is not salty.

n: Formation water with low salinity. Water is considered fresh when its low conductivity makes the interpretation of resistivity logs difficult. The salinity at which this becomes important depends on temperature and clay content, among other factors, but i

water with less than about 600 ppm total dissolved solids. Suitable for drinking.

unit weight of the solute per million unit weights of the solution. A small correction factor is needed to convert to mg/liter.

abbr: parts per million.

parts per million.

n: the epuippment which is far away the well head and control the blowout preventer stack directely,consist of pump,energy accumulator,valve,and oil tank

pH 8.0;Oxygen 6-8 ppm;Sodium 11,000 ppm;potassium 380 ppm;calcium 400 ppm;magnesium 1,300 ppm;Chloride 19,000 ppm;sulfate 2600 ppm;carbonate 142 ppm. Sea water composition may be fresher near rivers and melting ice caps, and more concentrated near

a visually apparent oil layer on water. Depending on the hydrocarbon type, sheens can develop with as little as 50 to 100 ppm.