Author(s)

Jianmin Zhang, Xijie Wang, Pengfei Mu, Shicong Lyu, Jun Xie

Bohai Oilfield Research Institute, Tianjin Branch of CNOOC Ltd., Tianjin, China.

The geological conditions of offshore shallow water delta oil reservoirs were complex, with limited well data and large well spacing. Taking A Oilfield in the Bohai Sea Area, China as an example, the target sand body was formed in a shallow water delta sedimentary environment, with well-developed underwater distributary channels and frequent branching and diversion. The reservoir was strong non-uniformity and uneven plane water cut pressure. To this end, based on the existing work of predecessors, combined with seismic, logging, and production dynamics data, and based on the genesis mechanism of shallow water delta reservoirs, the boundary of composite river channels was identified through seismic facies, and logging facies were used to subdivide them into single river levels within the composite river channels. Then, seismic waveform characteristics were applied to track and characterize the plane distribution of single river channels, guiding the efficient development of offshore shallow water delta oil fields and achieving increased storage and production in Bohai Oilfield, China.

Shallow Water Delta, Reservoir Configuration, Seismic Facies, Single Channel, Dominant Channel

Zhang, J. , Wang, X. , Mu, P. , Lyu, S. and Xie, J. (2024) Study on the Fine Configuration of Reservoir in River Facies Oilfield in Bohai Sea Area. Open Journal of Applied Sciences, 14, 391-397. doi: 10.4236/ojapps.2024.142027.