Analysis of Seismic Damage Zones: A Case Study of the Ordovician Formation in the Shunbei 5 Fault Zone, Tarim Basin, China

Journal of Marine Science and Engineering

卷:9

Jingtao Liu¹  Ruiqiang Yang²  Zhan Zhao²  Wenlong Ding²  Gang Zhao³ 

[1] SINOPEC Northwest Oilfield Company, Urumqi 830002, China;

[2] School of Energy Resources, China University of Geosciences, Beijing 100083, China;

[3] Sinopec Petroleum Exploration and Production Research Institute, Beijing 100083, China;

关键词: strike-slip fault zone;    carbonate rocks;    seismic data;   

DOI  :  10.3390/jmse9060630

来源: DOAJ

【 摘 要 】

Fault damage zone has an important influence on subsurface fluid flow and petrophysical properties. Therefore, it is of great significance to study the characteristics of fault damage zone for oil and gas development of ultra-deep carbonate formation. This study uses seismic data and the derived variance attribute to identify two types of damage zones and analyze the spatial geometric characteristics of the damage zones. The results show that the type 1 damage zone is wider than the type 2 damage zone. The width of damage zones distributed on both sides of the Shunbei 5 fault core shows obvious asymmetry, and the damage zone width and throw conforms to the typical power-law distribution on the log-log plot. We discuss the factors affecting the width of the damage zone and its formation process. Finally, we discuss the influence of the damage zones on oil and gas exploration. It seems that the seismic variance attribute is a useful technique for characterizing the ultra-deep strike-slip fault damage zones.

【 授权许可】

Unknown