Journal of Petroleum & Environmental Biotechnology

The low-permeability-layers of dolomite reservoir and its influence on remaining oil distribution

3^rd International Conference and Expo on Oil and Gas

July 13-14, 2017 Berlin, Germany

Cao Peng

Petrochina Hangzhou Research Institute of Geology, China
Key Laboratory of Carbonate Reservoirs, China

Posters & Accepted Abstracts: J Pet Environ Biotechnol

Abstract:

The YM dolomite reservoir has been into the high water production stage and the important issue is how to get the distribution of the remaining oil and to product. The low-permeability-layers are ubiquitous in this type of formation. Building the mechanism model, the sensitivity analysis is done among the permeability, thickness, attitude of the low-permeability-layers and different formation permeability. The result shows us that the effect of flow barrier is mainly close to the permeability of the low-permeabilitylayers and the strong flow barrier occurred when the permeability is lower than 0.01 mD. And the thicker the low-permeabilitylayers, the stronger the flow barrier based on the same other conditions. The different attitudes play different roles in controlling distribution of the remaining oil, the order is type I>II>III>IV. And if there are two low-permeability-layers and the effect is type V>VI. The low-permeability-layers are the fluid influent barriers in the short production time and the main control factors of the remaining oilâ??s distribution.

Biography :

Email: caop_hz@petrochina.com.cn