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SWLGS Luncheon Topic

January, 2004

Lily Seismic Boom Prospect, Ramos Field: It's Good to Have a Plan B
Michael Stamatedes, Consulting Geophysicist, Houston TX 77063 USA


Abstract Summary: The Lily Boom Prospect was one of the largest discoveries in South Louisiana in the 1990's. The prospect was defined by 3-D seimsic and was not the primary lead idea (Plan A), but one of several secondary pre 3-D lead ideas (Plan B). A non-exclusive 3-D survey (Plan B2) was acquired over the entire area, providing adequate seismic coverage to define the Lily Boom Prospect.

Lily Boom Prospect was tested in 1999 by the TMRX No. 1 Thibodaux well, which logged 238' of pay in the Lower Miocene Operc sands. Through January 1, 2003, gross cumulative production was 42 BCF and 1.8 MMBL from six producing wells, with an EUR of 130 BCF and 8.2 MMBL. The traps are a primary three-way closure and ancillary fault wedge closures, downthrown to the Ramos Field Fault.

TMRX underwrote the center 60 square miles of a 101 square mile non-exclusive 3-D survey, imaging the original play concept (fault closures on north dip caused by the giant Turtle Bayou Field structure to the south), the lead ideas, and the upthrown Ramos Field. The 3-D seismic indicated no strike closure on the original lead ideas, but showed a large untested area updip to wells that had been relatively minor Operc producers downthrown to the Ramos fault

Lily Boom's full potential had remained unrecognized because the primary downthrown closure is ~2 miles ESE of the upthrown Ramos Field closure. Because of inadequate seismic and subsurface control, previous mapping simply projected the upthrown strucutral axis across the Ramos fault. As a result, the scope and location of the dowthrown structure had gone unrecognized.

Biographical Sketch: Michael Stamatedes has over twenty years experience in the oil industry and is currently a consulting geophysicist in Houston. Working for Palace Exploration since July 2003, he has interpreted a 3-D survey near Winnie, Texas and is currently interpreting a 3-D survey in the Aransas Pass area, and screening prospect submittals in the Gulf Coast region. For the eight years prior to consulting, he held a variety of positions for Meridian Resource Exploration, and resigned as VP Exploration in April, 2003. At Meridian, he was part of an aggressive exploration program in South Louisiana and Texas, during which time the Ramos discovery was made. Other significant Meridian discoveries include Thornwell, Weeks Island, Ladkeside, and Biloxi Marsh. Before joining Meridian he worked for Benton Oil and Gas, evaluating three Texaco/Benton joint venture fields in South Louisiana. At Benton, he identified and recommended successful field wildcats in the West Cote Blanche Bay, Belle Isle, and Rabbit Island Fields. Prior to joining Benton, he was director of IEXUS, a consulting company that specialized in workstation interpretation, training, and customized software developement for domestic and international clients. At INEXUS, he provided geophysical services to Shell Offshore, Amoco Production Company, Unocal, Texaco, Lagoven, and Turkish Petroleum. He began his career with Amoco Production Company in New Orleans, working Offshore Gulf of Mexico and international projects, including the exploration evaluation of the offshore Nile Delta, one of Amoco's most significant discoveries of the 1990's.

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