Seismic Sedimentology and Its Application in Shallow Sea Area, Gentle Slope Belt of Chengning Uplift

• Published in: Journal of earth science (Wuhan, China) Vol. 21; no. 4; pp. 471 - 479
• Main Authors: Zhang, Xianguo, Lin, Chengyan, Zhang, Tao
• Format: Journal Article
• Language: English
• Published: China University of Geosciences China University of Geosciences 01.08.2010; Springer Nature B.V
• Subjects: Biogeosciences; Earth and Environmental Science; Earth science; Earth Sciences; Geochemistry; Geology; Geophysics; Geotechnical Engineering & Applied Earth Sciences; Horizontal wells; Oil wells; Petroleum geology; Reservoir silting; Sedimentation & deposition; Sedimentology; Seismology; 地层切片; 地震资料; 应用; 沉积学; 沉积特征; 浅海地区; 缓坡带; 隆起; China; shallow sea area; gentle slope belt of Chengning uplift; braided river; braided bar; seismic sedimentology; architecture
• ISSN: 1674-487X; 1867-111X
• DOI: 10.1007/s12583-010-0108-y

Seismic sedimentology is a new frontier inter-discipline subject, and shows good prospect and potentiality in reservoir deposition research with seismic data and geophysics technologies. We made seismic sedimentology research of shallow sea area, gentle slope belt of Chengning （埕宁） uplift, Bohalwan （渤海湾） basin. In shallow sea area with sparse well coverage, it was difficult to characterize the reservoir architecture with the traditional method based on wells. A new method to resolve the above problems is built： （1） information on plane and in section is inter-ealibrated with each other; （2） recognize the isochronic surfaces by frequency decomposition and interpret the depositional character with technology of stratal slicing; （3） make a comprehensive research with the stratal slice interpreta- tion and the dissection of well group. The depositional model of this area is built and used in the architecture analysis of area without wells. The architecture description reveals that the sedimentary character of pan-connection sand bodies in braided rivers is the reason for high water cut of the new horizontal wells. .