If at first you don't succeed, try something unconventional. Successful exploration for new reservoirs in mature trends often requires trying techniques unproved in the area. In a mature play onshore Gulf of Mexico, our initial exploration campaign with conventional 3-D seismic was disappointing. However, attention to rock properties coupled with application of a novel processing technique, allowed us to develop a solution to our dilemma.

The densely drilled, clastic Oligocene Vicksburg Formation in south Texas has produced more than 3 trillion ft3 of gas and 100 million bo since production began in the 1920s (Figures 1 and 2...

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