--> A Team Approach to Processing Quality Control is Successful in Optimizing the Processing Flow for a Challenging 3D Seismic Data Area
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A Team Approach to Previous HitProcessingNext Hit Quality Control is Successful in Optimizing the Previous HitProcessingNext Hit Flow for a Challenging 3D Previous HitSeismicNext Hit Previous HitDataNext Hit Area

By

 AbdulSalam Bin Ishaq1, Abu Baker Al Jeelani2, Erik Kleiss1, Mohammed Samir Al Nahhas3, Abdel Fattah M. Bakhiet3, William Soroka2, Mahfoud Al Jenaibi2

(1) Abu Dhabi Company for Offshore Operations (ADCO), Abu Dhabi, United Arab Emirates (2) Abu Dhabi Company for Offshore Oil Operations (ADCO), Abu Dhabi, United Arab Emirates (3) Jason Geosystems Middle East B.V, Dubai, United Arab Emirates

 A successful study was performed to optimise the Previous HitseismicNext Hit Previous HitprocessingNext Hit work flow and parameter selection of a newly acquired 3D Previous HitseismicNext Hit volume to achieve a high-resolution Previous HitseismicNext Hit image with optimum amplitude preservation and wavelet stability. Acoustic impedance inversion was found to be an essential step to highlight details that were important to achieve the survey objectives.

A 3D Previous HitseismicNext Hit survey was recently acquired over a major field in Abu Dhabi, to better map the reservoir units and quantify reservoir properties. The Previous HitprocessingNext Hit of the new Previous HitseismicNext Hit Previous HitdataNext Hit would need to produce a high-resolution volume that would permit detailed structural mapping and additional geophysical analysis to derive quantitative attributes for improved reservoir characterisation. This study was performed using a team approach on a 40 km2 test cube extracted from the new Previous HitseismicNext Hit Previous HitdataNext Hit.

Interpretations made on key reflectors with different Previous HitprocessingNext Hit flows showed that the final Previous HitseismicNext Hit images were very sensitive to velocity picking, multiples and coherent noise in the Previous HitdataNext Hit. Top reservoir structure was sensitive to the static solution method and parameters. Well synthetic ties to the Previous HitseismicNext Hit helped differentiate real Previous HitseismicNext Hit events from multiples and highlight where the Previous HitseismicNext Hit images was good and poor. Acoustic impedance inversion was used to evaluate thin bed resolution and relative amplitude preservation. The resulting acoustic impedance volumes were compared quantitatively to acoustic impedance profiles from the wells to determine which Previous HitprocessingTop flow produced the best match to the known answer at the well.