Experiment on Physical Simulation of Multi-phase Synergistic Steam Flooding in Heavy Oil Reservoirs

doi:10.3969/j.issn.1006-6535.2023.03.016

Abstract

Abstract: In a case study of heavy oil reservoirs in IX6 Well Block, Xinjiang Oilfiled, physical simulation test of multi-media assisted steam flooding was conducted to address such problems as prominent vertical contradiction in the late stage of steam flooding in heavy oil reservoirs and serious steam channeling in the high-permeability layer. Firstly, the gelling performance and viscosity reducing effect of gel were evaluated, and then the combination mode of multi-phase synergistic steam flooding was optimized by full-diameter core. The results show that after the high-permeability layer was plugged by gelling, the subsequently injected multi-phase media effectively entered the low-permeability layer and drove the remaining oil in the low-permeability reservoir. Nitrogen was injected after viscosity reducer injected to effectively enhance the elastic energy and fluidity of crude oil, which was conductive to expanding the sweep volume of steam. The multi-phase synergistic steam flooding development mode of plugging control, viscosity reduction and pressurization is the best combination mode, which can improve the oil recovery rate by 23.65 percentage points. The study results can provide technical reference for the improved late development effect of steam flooding in heavy oil reservoirs.

Key words: heavy oil, steam flooding, heterogeneous reservoir, multi-phase coordinative, physical simulation, enhanced oil recovery

CLC Number:

TE319

Liu Gang, Cao Han, Zhu Aiguo, Li Yiqiang, Yue Hang. Experiment on Physical Simulation of Multi-phase Synergistic Steam Flooding in Heavy Oil Reservoirs[J]. Special Oil & Gas Reservoirs, 2023, 30(3): 131-136.

References

[1] 于连东.世界稠油资源的分布及其开采技术的现状与展望[J].特种油气藏,2001,8(2):98-103,110.
YU Liandong.Distribution of world heavy oil reserves and its recoverty technologies and future[J].Special Oil & Gas Reservoirs,2001,8(2):98-103,110.
[2] 蒋琪,游红娟,潘竟军,等.稠油开采技术现状与发展方向初步探讨[J].特种油气藏,2020,27(6):30-39.
JIANG Qi,YOU Hongjuan,PAN Jingjun,et al.Preliminary discussion on current status and development direction of heavy oil recovery technologies[J].Special Oil & Gas Reservoirs,2020,27(6):30-39.
[3] 刘栋梁,顾继俊.稠油热采技术现状及发展趋势[J].当代化工,2018,47(7):1445-1447,1451.
LIU Dongliang,GU Jijun.Current situation and development trend of heavy oil thermal recovery technology[J].Contemporary Chemical Industry,2018,47(7):1445-1447,1451.
[4] 付顺龙,张易航,刘汝敏,等.稠油、超稠油热采技术研究进展[J].能源化工,2020,41(2):26-31.
FU Shunlong,ZHANG Yihang,LIU Rumin,et al.Research progress of thermal recovery technology in heavy oil and super heavy oil reservoir[J].Energy Chemical Industry,2020,41(2):26-31.
[5] 户昶昊.中深层稠油油藏蒸汽驱技术研究进展与发展方向[J].特种油气藏,2020,27(6):54-59.
HU Changhao.Research progress and development direction of steam flooding technology for medium and deep heavy oil reservoirs[J].Special Oil & Gas Reservoirs,2020,27(6):54-59.
[6] 李敬.氮气泡沫辅助蒸汽驱提高稠油采收率技术研究[J].油气藏评价与开发,2015,4(4):47-52.
LI Jing.Enhanced heavy oil recovery technology by nitrogen foam assisted steam flooding[J].Reservoir Evaluation and Development,2015,4(4):47-52.
[7] 张淑霞,刘帆,沐宝泉.蒸汽驱及化学辅助蒸汽驱提高稠油采收率实验[J].石油与天然气地质,2017,38(5):1000-1004.
ZHANG Shuxia,LIU Fan,MU Baoquan.An experimental study on enhanced heavy oil recovery by steam flooding and chemical assisted steam flooding[J].Oil & Gas Geology,2017,38(5):1000-1004.
[8] PANG Zhanxi,LIU Huiqing,ZHU Ling.A laboratory study of enhancing heavy oil recovery with steam flooding by adding nitrogen foams[J].Journal of Petroleum Science & Engineering,2015,128:184-193.
[9] 魏振国.井楼油田零区稠油热采组合吞吐技术实验研究[J].石油地质与工程,2017,31(6):101-104.
WEI Zhenguo.Experimental study on combined throughput technology of heavy oil thermal recovery of block zero in Jinglou Oilfield[J].Petroleum Geology & Engineering,2017,31(6):101-104.
[10] LIU Jianbin,ZHONG Liguo,YUAN Xiaonan.Study on the re-emulsification process of water in heavy oil emulsion with addition of water-soluble viscosity reducer solution[J].Energy & Fuels,2019,33:10852-10860.
[11] 周伟,寇根,张自新,等.克拉玛依油田九6区稠油油藏蒸汽-CO₂复合驱实验评价[J].新疆石油地质,2019,40(2):204-207.
ZHOU Wei,KOU Gen,ZHANG Zixin,et al.Steam-CO₂ flooding for heavy oil in District 9-6,Karamay Oilfield:experiment and evaluation[J].Xinjiang Petroleum Geology,2019,40(2):204-207.
[12] 朱静,李传宪,辛培刚,等.稠油体系的微观结构及流变性分析[J].西安石油大学学报(自然科学版),2012,27(2):54-57,120.
ZHU Jing,LI Chuanxian,XIN Peigang,et al.Study on microstructure and rheology of heavy oil[J].Journal of Xi'an Shiyou University(Natural Science Edition),2012,27(2):54-57,120.
[13] 吴正彬,刘慧卿,庞占喜,等.稠油氮气泡沫辅助蒸汽驱可视化实验研究[J].特种油气藏,2016,23(5):126-129,157.
WU Zhengbin,LIU Huiqing,PANG Zhanxi,et al.Visualization experiment of nitrogen foam assisted steam-flooding in heavy-oil reservoir[J].Special Oil & Gas Reservoirs,2016,23(5):126-129,157.
[14] 张洪宝,刘永建,塔耀晶,等.稠油油藏氮气辅助蒸汽驱室内实验[J].断块油气田,2020,27(5):624-627.
ZHANG Hongbao,LIU Yongjian,TA Yaojing,et al.Laboratory experiment of nitrogen assisted steam flooding in heavy oil reservoir[J].Fault-Block Oil & Gas Field,2020,27(5):624-627.
[15] 吴正彬,庞占喜,刘慧卿,等.稠油油藏高温凝胶改善蒸汽驱开发效果可视化实验[J].石油学报,2015,36(11):1421-1426.
WU Zhengbin,PANG Zhanxi,LIU Huiqing,et al.A visible experiment on adoption of high-temperature gel for improving the development effect of steam flooding in heavy oil reservoirs[J].Acta Petrolei Sinica,2015,36(11):1421-1426.
[16] 高浩,蒲万芬,李一波,等.稠油油藏蒸汽驱后就地凝胶深部调驱实验研究[J].油气藏评价与开发,2020,10(6):58-64.
GAO Hao,PU Wanfen,LI Yibo,et al.Deep profile control experiment of in-situ gel after steam flooding in heavy oil reservoir[J].Reservoir Evaluation and Development,2020,10(6):58-64.
[17] 吴文炜.新疆浅层稠油多元热流体开采研究[D].北京:中国石油大学(北京),2019.
WU Wenwei.Research on complex thermalfluid extraction of shallow heavy oil in Xinjiang[D].Beijing:China University of Petroleum(Beijing),2019.
[18] 李睿姗,何建华,唐银明,等.稠油油藏氮气辅助蒸汽增产机理实验研究[J].石油天然气学报(江汉石油学院学报),2006,28(1):72-75,141.
LI Ruishan,HE Jianhua,TANG Yinming,et al.Experiment on the mechanism of nitrogen-assisted steam stimulation in heavy oil reservoirs[J].Journal of Oil and Gas Technology(Journal of Jianghan Petroleum Institute),2006,28(1):72-75,141.