The hydrocarbon prospectivity of the Walton Basin offshore Jamaica has been high-graded through new geological interpretations and advances in seismic imaging. This basin has seen little hydrocarbon exploration in the last 25 years but recent exploration efforts has identified a potential new oil and gas province. Only 11 hydrocarbon exploration wells have been drilled in Jamaica to date and 10 of these have had oil or gas shows, yet surprisingly there has been limited modern exploration interest in Jamaica. Historically the Walton Basin has been plagued by poor seismic imaging from the effects of the thick Tertiary carbonate cover and present day carbonate banks and consequently the Basin has been downgraded. Simply put “if you can’t see it, you can’t explore for it”. Recent advances with the acquisition of new long offset 2D seismic data and reprocessing the data using Beam pre-stack depth migration now provide a step change in the seismic imaging of the sedimentary section. This advance, coupled with the increased geological understanding of the basin, means that the new and re-rated plays within this overlooked basin can be imaged and industry can now focus towards exploration drilling to unlock its hydrocarbon potential.
During the last decades the airguns have become a standard energy source for seismic surveys in the industry. Sleeve guns were introduced a number of years ago and are widely used today. This paper aims at comparing the results of a testline shot with a sleeve gun array to the results of a testline shot with the newly developed G.I. gun array . These data were shot in the summer of 1991 . The data were acquired in Norwegian waters in quadrant 16. An airgun shot line from the same area, acquired in 1989, is also available for comparison .
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