One of the big challenges facing operators in the on-shore Nile Delta is the discrimination between residual gas saturations and mobile commercial gas. The application of spectral decomposition and frequency attributes on pre-stack seismic data has opened the door to think about the relationship between frequency attenuation and reservoir properties. The main motivation of this study is the existence of a potential accumulation, with a very good seismic response, extremely comparable to that observed in a major producing field nearby. The results of a well drilled in this prospect were not encouraging and the well was classified as a dry well with gas shows (gas saturation in the tested reservoir reached 28%). We will see in this study how spectral decomposition can be used to discriminate between low gas saturations and mobile, commercial gas in the area of study.
|Number of pages||4|
|Publication status||Published - 19 Nov 2019|
|Event||Second EAGE Eastern Mediterranean Workshop - Athens, Greece|
Duration: 19 Nov 2019 → 21 Nov 2019
|Workshop||Second EAGE Eastern Mediterranean Workshop|
|Period||19/11/19 → 21/11/19|
Fathy, W. M. O. A., & Shams, A. (2019). Residual and Commercial Gas Discrimination by Spectral Decomposition Using Ultra-Far Stacked Seismic Data, Nile Delta, Egypt. Paper presented at Second EAGE Eastern Mediterranean Workshop, Athens, Greece.