摘要：Fracture-pore carbonate reservoirs exhibit strong microscopic heterogeneity and complex seepage characteristics, resulting in suboptimal oil-drive efficiency and development outcomes. Moreover, water channeling is often a serious problem in the development of fractured porous carbonate rocks, and the blockage of degassed bubbles in the throat is one of the reasons that cannot be ignored. In order to reveal the degree of influence of bubbles on waterflood sweep, this paper employs microfluidic technology to design three distinct chips, namely fracture-type, composite-type, and cave-type, to visually illustrate the influence of the gas phase on three-phase flow. A quantification method is established to analyze the variation characteristics of pore diameter utilization ratio in different types of carbonate reservoirs. Compared with water flooding experiments without the gas phase, the recovery factor of water flooding with the presence of the gas phase decreases by 0.6%, 3.4%, and 15.3% for three distinct chips, respectively. In fracture-type reservoirs, the main focus is on sealing the primary fracture seepage channel and mitigating the shielding effect of the gas phase on matrix utilization. For composite-type reservoirs, the primary objective is to seal fractures and eliminate the shielding effect of the gas phase. In cave-type reservoirs, the primary goal is to eliminate the sealing effect caused by the discontinuous gas phase within small pore throats.

关键字：carbonate reservoir; fracture pore; three-phase seepage; microfluidic experiment; utilization ratio; oil-gas reservoirs; petroleum engineering; petroleum transport/pipelines/multiphase flow

ISSN号：0195-0738

卷、期、页：卷: 146期: 2

发表日期：2024-02-01

影响因子：0.000000

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,SCIE（科学引文索引网络版）

发表期刊名称：JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME

参与作者：赵文琪,吴学林

通讯作者：郭晨,王勇,管昱棋,哈森

第一作者：第五鹏祥,李俊键

论文类型：期刊论文

论文概要：郭晨,第五鹏祥,赵文琪,吴学林,王勇,管昱棋,哈森,李俊键，Effects of Trapped Gas in Fracture-Pore Carbonate Reservoirs，JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME，2024，卷: 146期: 2

论文题目：Effects of Trapped Gas in Fracture-Pore Carbonate Reservoirs