Abandoned wells must be plugged to prevent seepage of oil, gas, or water from one formation to another. Anticline An upfold or arch of stratified rock in which the beds or layers bend downward in opposite directions form the crest or axis of the fold. The American Petroleum Institute is the oil industry's trade organization. Associated gas Gas combined with oil. Known also as gas cap gas and solution gas, it provides the drive mechanism needed to force oil to the surface of a well.
Associated gas is normally present in an oil reservoir in the early stages of production.
The conversion is based on the assumption that one barrel of oil produces the same amount of energy when burned as 5,620 cubic feet of natural gas. One bed is separated from another by a bedding plane. Bid An offer for an OCS lease submitted by a potential lessee in the form of a cash bonus dollar amount or other commitments as specified in the final notice of sale. Blocks are portions of OCS leasing maps and OPD's that are themselves portions of planning areas. An uncontrolled flow of gas, oil, or other fluids from a well to the atmosphere.