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The AAPG/Datapages Combined Publications Database

Southeast Asia Petroleum Exploration Society (SEAPEX)


Offshore South East Asia Conference, 1996
Pages 185-196

Gravity and Magnetics in South East Asia - Modern Applications

Brian S. Anderson, John E. Bain, Harald van Hoeken, Mark E. Weber


Recent advances in the acquisition, processing, and interpretation of gravity and magnetics methods now enable the use of these data for solving a wide range of seismic problems.

In the summer of 1995, LCT in conjunction with Robertson Research International, Kevron Ply Ltd. and Oil Search Plc. acquired a unique airborne gravity, magnetics, and seepfinder survey over the Erlend Basin in the North Sea. A review of the gravity data from this survey demonstrates an accuracy approaching that of 2D marine surveys.

There is an increasing number of marine 3D seismic surveys being acquired with concurrently recorded high resolution gravity and magnetics data. Instrumentation, navigation, and processing advances have led to significantly increased gravity and magnetics data resolution. State of the art workstation software tools provide a means for the integration of seismic, gravity, and magnetic data. Integrated interpretations have aided in the delineation of complex imaging problems including the verification and enhancement of seismic velocity models. A review is given of technical developments, economic considerations, and case studies in support of integrated 3D marine surveys utilizing gravity, magnetics, and seismic data.

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