دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a collection of all of the recorded instruments affecting title to a tract of land. Compare base abstract.

n: a title opinion based on a complete abstract of title and other relevant documents. Compare stand- up title opinion.

formations below the deepest zones that can be imaged by an acoustic process.

n: the process of recording the acoustic characteristics of sub- surface formations, based on the time required for a sound wave to travel a specific distance through rock. The rate of travel depends on the composition of the formation, its porosity, and its fluid content. Also called sonic logging.

n: 1. a state or county tax based on the value of a property. 2. tax imposed at a percent of a value.

n: Made by adding gas into common water base drilling fluid. Mainly used to protect circulation loss in low pressure formation and leakage zone.

n: the distance from the normal level of the sea surface to the bottom of the hull or base of an offshore drilling platform or rig.

n: The distance from normal sea level to drill platform when marine drilling.

the clearance between the highest water surface that occurs during the extreme environmental conditions and the underside of the deck.

n: a substance having marked basic (alkaline) properties, such as a hydroxide of an alkali metal. See base.

n: Any compound having pH properties higher than the neutral state.

a strongly basic solution.

n: the combining power of a base, or alkali, as measured by the number of equivalents of an acid with which it reacts to form a salt. Any solution that bas a pH greater than 7 is alkaline. See pH.

n: The combining power of a base measured by the maximum number of equivalents of an acid with which it can react to form a salt. In water analysis, it represents the carbonates, bicarbonates, hydroxides and occasionally the borates, silicates and phosphates

n: A kind of anionic surface active agent. Mainly used as emulsifier of water base drilling fluid and improving temperature resistance capacity of drilling fluid in the deep well.