دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: It‘s main mission is to awareness geological structure featrure、stratigraphic period、lithologic character、thickness and oil （gas）s save condition of encirclement.it usually coring in the whole well or stressingly in base of necessaries.

n: level component part in the headframe structrure ,its two ends is joined to derrick leg.

n: (LDC) a company that sells natural gas to homes, offices, and businesses in towns, cities, or relatively small rural areas.

abbr: rigging up rotary rig;used in drilling reports.