The achievement of practical and useful airborne gravity exploration for petroleum is a major culmination of more than twenty years of research and development. Commercial surveys have now been conducted for three years. The precision and anomaly resolution attainable are twice as good as that of current shipborne gravity data. This paper presents data to demonstrate the precision of airborne gravity and discusses its usefulness (with simultaneous magnetics and topography). Industrial acceptance of the method portends a new era in geophysical exploration for oil and gas which gives promise to double the effectiveness of explorations on land in both time and cost.

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