Abs:
Abbr. American petroleum institute
American association of petroleum geologists
American association of petroleum landmen
A south american tree that is a source of tannin extract, which was extensively used as a thinning agent for drilling mud, but is seldom ...
The specific gravity or density of oil expressed in terms of a scale devised by the american petroleum institute. The lighter the oil, the greater ...
(api) a trade association founded in 1919 with offices in washington, dc, usa. The api is sponsored by the oil and gas industry and is ...
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