March 2013

Continuing Insights into Structure and Stratigraphy of the Onshore Gulf Basin from Pre-Stack Depth Imaging of Mega-Regional Strike Lines from South Texas to the Florida Panhandle

Ed Haire, Don Howard, Barbara Radovich

Abstract Summary

Mega-regional, 2D, pre-stack depth migrated (PSDM) strike lines can provide advances to the interpretation of the onshore Gulf Basin framework. Continuous seismic lines with consistent depth processing across nearly the full extent of the onshore portion of the basin allow onshore depocenters, structural axes, and canyons to be seen in their regional context. Plays dependent on new horizontal wells can be tied around the basin. A preliminary interpretation is presented of a key strike line that is made up of legacy onshore data and PSDM processed by ION Geophysical. The interpretation highlights a strike-view through the depoaxes of shelf margins forming while gravity sliding is occurring along the Base Louann detachment. Plays below salt welds and shale decollements show improved imaging. This is one of a series of seven strike lines of approximately 8500 miles and 380 individual line segments that ranges from a line hugging the coast to the northernmost line which traverses the East Texas Salt Basin, Sabine Uplift, North Louisiana Salt Basin, Mississippi Interior Salt Basin and Wiggin’s Arch to the Florida Panhandle. The strike lines tie together existing mega-regional dip lines and span across the basin from South Texas to Alabama and from the northern limit of the onshore Gulf Basin to the abyssal plain. The dip lines in some cases have been extended to tie the new strike grid. The interpretation has been tied to well control with a series of synthetics and check shot surveys and a comprehensive database of well tops.

Biographical Sketch

Ed Haire has been with INEXS® since 1993. He is responsible for managing many of the interpretation projects for customers including providing much of the geophysical evaluation for certain projects. Ed is responsible for managing the technical staff and many of the larger evaluation projects.

Ed has worked on numerous projects for customers such as Hollimon Oil, Rutherford, Drill Partners, Aspect, BP, Meridian and Torch. His particular expertise includes fully integrated field and project evaluations, AVO processing and analysis and extremely detailed analyses of analog production and nearby well control. Ed has worked on projects in the UK, Colombia and Venezuela, plus Montana, Wyoming, Colorado, New Mexico, Texas, Louisiana and the Gulf of Mexico. He has worked on the regional interpretation of the GOM basin for the past three years.

Ed received his BS degree from Texas A&M in 1972, and began working at Seiscom-Delta developing his data processing skills. He moved in 1975 to Michigan Wisconsin Pipeline and in 1978 to Conoco, working onshore and offshore Texas. In 1979 Ed joined Union Texas Petroleum working the Gulf of Mexico. In 1980 he was transferred to Denver as Division Geophysicist and in addition to managing the geophysical staff, he worked the Williston Basin, the Montana disturbed belt and the Green River Basin.

Ed joined Monsanto Oil Company in Denver in 1982 as Division Geophysicist, and continued to oversee and work the Williston, Paradox, Powder River, North Park and Wind River basins. In 1986, BHP Petroleum purchased Monsanto Oil, and Ed continued to work these basins until he moved to Houston in 1987 to work the Gulf of Mexico for BHP. Ed left BHP in 1993 and joined INEXS®.