| Gas channels and chimneys detection using post-stack seismic attributes, Simian field, offshore West Nile Delta, Egypt |
| Paper ID : 1101-ISCHU |
| Authors |
|
Bagy Ahmed * 36 Becho Zahraa El Maadi , Cairo, Egypt. |
| Abstract |
| The West Delta Deep Marine (WDDM) is a potential concession for oil and gas resources. However, the area is also known for its distributed and disconnected channel systems, in addition to the presence of gas chimneys that might recharge the gas reservoirs. There are several major fields, including Scarab, Saffron, Simian, Sienna, Sapphire, Sequoia, and Serpent. This study focuses on the Simian field, which is part of the WDDM concession. Gas chimneys and pockmarks are common features in the east Mediterranean Sea, and they increase the overall hazard level in the area. However, these gas chimneys also play a crucial role in recharging the gas reservoirs. By applying modern investigation methods, the detection of these hazards and associated features can be improved, leading to better control and risk reduction. This, in turn, ensures the safety of the entire production process and provides valuable insights into the geology and hydrocarbon potential of the area. The extracted attributes identify and delineate subsurface features like deep seafloor pockmarks, fault zones, and other associated features. Seismic attributes such as root mean square, envelope, energy, the cosine of the instantaneous phase, variance, and chaos attributes provide evidence of the presence of shallow gas and migration pathways. In addition to hazard evaluation due to the presence of chimneys and associated faults near exploration areas. |
| Keywords |
| Offshore Nile Delta; gas chimneys; gas channels; seismic attributes; hazard evaluation |
| Status: Abstract Accepted (Poster Presentation) |