--> Abstract: Delineation of Gas Sands Using Elastic Inversion - A Case Study, by Mainak Bandyopadhyay, Avinash Singh, Ashish K. Singh, Shakuntala Mangal, and Satyesh Bhandari; #90081 (2008)
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Delineation of Gas Sands Using Previous HitElasticNext Hit Inversion - A Case Study

Mainak Bandyopadhyay, Avinash Singh, Ashish K. Singh, Shakuntala Mangal, and Satyesh Bhandari
Reliance Industries Limited, Navi Mumbai, India

The case study presented here pertains to an exploration block in East Coast of India. Previous HitRockNext Hit Previous HitpropertiesNext Hit (shear and compressional wave velocities and Previous HitrockNext Hit density) estimated from the Previous HitElasticNext Hit inversion carried out on the pre stack time migrated seismic data were used to compute Previous HitelasticNext Hit Previous HitrockNext Hit parameters, the Lame’s parameters. Using well log data, it has been established that in terms of Previous HitelasticNext Hit Previous HitrockNext Hit parameters, the gas sand behavior is different from brine or non-reservoir facies. This inference has then been extended to Previous HitrockNext Hit property volumes derived from Previous HitElasticTop Inversion of seismic data and has been used to aerially delineate the gas sand which is otherwise difficult due to similarity of seismic responses.

The results have also supported the time to depth conversion as a result of complex velocity model building process.

Presentation GEO India Expo XXI, Noida, New Delhi, India 2008©AAPG Search and Discovery