CGG to expand multi-client airborne GravMag program offshore Mexico

CGG Multi-Physics has completed acquisition, processing, and interpretation of a multi-client airborne gravity and magnetic survey of about 38,000 line km (23,612 mi) over the Perdido foldbelt.

Location of AOI 1 and other areas proposed in CGG’s multi-client airborne GravMag program offshore Mexico.
Location of AOI 1 and other areas proposed in CGG’s multi-client airborne GravMag program offshore Mexico.

Offshore staff

PARISCGG Multi-Physics has completed acquisition, processing, and interpretation of a multi-client airborne gravity and magnetic survey of about 38,000 line km (23,612 mi) over the Perdido foldbelt.

Data acquisition of area AOI 1 was completed in December 2016 using a Basler geophysical survey aircraft. This survey is the first of six areas to be acquired in a wider program totaling 200,000 line km (124,274 mi) across theMexican Gulf of Mexico. Additional acquisition in the other areas is planned for 2018.

The newly acquired Perdido foldbelt data, the company claims, has shown an interesting correlation of significant discoveries along the flanks of basement topography. The data and interpretation will help explorers map crystalline basement, which is not well imaged by seismic, to construct an improved Earth Model. The airborne survey also collected continuous data through the “transition zone” from the marine environment to onshore.

The comprehensive interpretation, combining this new data set with available geologic and geophysical data, was undertaken by CGG’s in-house interpretation team in Houston. A full geophysical interpretation report, which includes mapping of basement, sediment and any intrusives or salt which may be present, will provide important insights to exploration and de-risking of prospective areas by oil companies.

Greg Paleolog, senior vice president, Multi-Physics, CGG, said: “The results of this first survey in our wider airborne GravMag program offshore Mexico reinforce our belief that this extensive new program, when combined with our other seismic, geologic and satellite multi-client data in Mexico, will give the industry access to a unique geoscience library to support the future exploration and economic development of this high-potential area.”

12/08/2017

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