Applicability of Nitrogen Foam in Developing Shallow-Thin Ultra-Heavy Oil Reservoirs

CHANG Taile, YANG Yuanliang, GAO Zhiwei, HU Chunyu, ZHENG Xiaoqiang, ZHANG Meng, YUAN Yiping

Xinjiang Petroleum Geology . 2021, (6): 690 -695 . DOI: 10.7657/XJPG20210606