Status and Progress of Enhanced Oil Recovery Technology in Shale Reservoirs
With the continuous exploitation of domestic conventional oil and gas resources, it is urgent to form a new strategic successor force for stable crude oil production, and China's shale oil and gas resources are abundant and rank in the forefront of the world. At present, various cutting-edge technologies such as CO2 gas injection throughput, horizontal well segmented fracturing technology, and horizontal well synchronous fracturing technology have been applied to the on-site exploitation of shale oil, and numerical simulation methods for shale oil exploitation in various ways are also actively explored. Starting from comparing the current situation of shale oil exploitation at home and abroad and clarifying various development methods and means, this paper summarizes the field application and indoor scientific research of enhanced oil recovery technology in shale oil reservoirs at home and abroad, compares and analyzes the advantages and disadvantages of various methods, and expounds the development trend of shale oil enhanced oil recovery.
References
- WANG Tiankai, HE Wenyuan, YUAN Yuyang, XU Kun, LI Guohao, LI Feng, WANG Shihong, LV Lei New progress and enlightenment of benefit development under low oil prices of shale oil in the United States[J].Petroleum Science and Technology Forum,2017,36(02):60-68.
- GUO Xusheng, LI Maowen, ZHAO Mengyun. Development and utilization of shale oil and its role in energy[J]. Bulletin of Chinese Academy of Sciences,2023,38(01):38-47.
- GUO Qiulin,MI Shiyun,ZHANG Qian,WANG Jian. Evaluation method and resource potential of shale oil resources in China [J]. Petroleum experimental geology, 2023, 45 (03): 402-412.
- ZHOU Qingfan,YANG Guofeng. Concept and application of tight oil and shale oil [J]. Oil and gas geology,2012,33(04):541-544+570.
- SHENG Xiang, CHEN Xiang, ZHANG Xinwen, JIA Yanyu, LUO Xi. Prospects and challenges of continental shale oil development in China[J].Petroleum experimental geology, 2015, 37(03):267-271.
- YANG Shengyu,ZHANG Jinchuan. Shale oil and its characteristics [J]. Petroleum geology and development in Daqing, 2012, 31( 5) :47-50.
- ZOU Cai, TAO Shizhen, HOU Lianhua, et al. Unconventional oil and gas geology[M].Beijing: Geological Publishing House, 2011: 128-151.
- WANG Xiangzeng, ZHANG Lixia, LEI Yuhong,YU Yuxi, JIANG Chengfu, LUO Xiaorong,GAO Chao,YIN Jintao, CHENG Ming. Characteristics of solid organic matter and organic matter pore characteristics in the internal transport of low-maturity lacustrine shale: A case study of the long 7 oil formation shale of the Yanchang Formation in the southeast Ordos Basin[J]. Acta Petrolei Sinica,2018,39(02):141-151.
- ALFARGE D.WEI MBAI B.In IOR methods in uncon-ventional reservoirs of North America: Comprehensivereview [C].SPE185640-MS.2017.doi: 10.2118/185640-MS.
- ALHARTHY N.TEKLU T W.KAZEMI HCL l. En-hanced oil recovery in liquid-rich shale reservoirs: Laboratory to field [J]. SPE Reservoir Evaluation & Engineering.2018.21(1): 137-159. doi: 10.2118/175034-PA.
- ZHAO Wenzhi,HU Suyun,HOU Lianhua,et al. Continental shale oil type, resource potential and boundary with tight oil in China [J]. Petroleum exploration and development, 2020, 47 (01): 1-10.
- JIN Zhijun, WANG Guanping, LIU Guangxiang,et al. Research progress and key scientific issues of continental shale oil in China[J].Acta Petrolei Sinica,2021,42(07):821-835.
- DU Jinhu, HU Suyun, PANG Zhenglian et al. Type, potential and prospect of continental shale oil in China[J].China Petroleum Exploration,2019,24(05):560-568.
- YANG Lei, JIN Zhijun. Global shale oil development and prospects[J]. China Petroleum Exploration,2019,24(05):553-559.
- EIA.Technically recoverable shale oil and shale gas resources:United kingdom [R]. Washington; U.S. Department of Energy 2015.
- HU Yongle, HAO Mingqiang, CHEN Guoli, SUN Ruiyan,LI Shi. CO2 flooding and storage technology and practice in China [J]. Oil exploration and development,2019,46(04):716-727.
- LAN Y,YANG Z,WANG P et al. A review of micro-scopic seepage mechanism for shale gas extracted by supercritical CO2 flooding [J]. Fuel,2019,238: 412-424.doi10. 1016/. fuel. 2018. 10.130.
- ZHAO Yanfei, GUO Na, MA Jianhua. Study on CO2 displacement principle in tight oil reservoir[J] petrochemical technology, 2019,26 (10):179-180.
- YANG Tiejun, ZHANG Yingzhi, YANG Zhengming, et al. Enhanced oil recovery mechanism of CO2 flooding in tight sandstone reservoir[J].Science Technology and Engineering, 2019, 19(24):113-118.
- Vega B, O'Brien W J, Kovscek A R. Experimental investigation of oil recovery from siliceous shale by miscible CO, injection [Cy/ paper SPE- 135627- MS presented at the SPE Annual Technical Conference and Exhibition,19-22 September 2010Florence, Italy.
- LI L, WANG C, LI D, et al. Experimental investigation of shale oil recovery from Qian jiang core samples by the CO2 huff-n-puff EOR method ]. RSC Adv,2019,9(49): 28857-28869.
- GAO Yang, YE Yiping, HE Jixiang, et al. Practice of continental shale oil development in Jimsar sag in Junggar Basin [J].China Petroleum Exploration 2020,25(2): 133-141.
- Shi Diao, Du Yan, Dang Hailong, etc. Indoor experiment on CO2 throughput and throughput of Chang7 shale oil reservoir in Zhidan oil area[J/OL].Special oil and gas reservoir:1-7 [2023-07-03].
- CAO Changxiao, SONG Zhaojie, SHI Yaoli,et al. Research on enhanced oil recovery technology of gas injection throughput and processing of Jimsar shale oil[J/OL].Special oil and gas reservoirs:1-13[2023-07-04].
- Hoffman B T. Comparison of various gases for enhanced recov-ery from shale oil reservoirs[C// paper SPE- 154329- MS presented at the 18th SPE Improved Oil Recovery Symposium, 1418 April 2012, Tulsa, Oklahoma, USA.
- Alharthy N, Teklu T, Kazemi H, et al. Enhanced oil recovery inliquid-rich shale reservoirs: Laboratory to field[C]// paper SPE-175034-MS presented at the SPE Annual Technical Confer-ence and Exhibition,28-30 September 2015, Houston, USA.
- Wei Y,Al-Shalabi E W, Sepehrnoori K. A sensitivity study ofpotential CO injection for enhanced gas recovery in Barnettshale reservoirs [Cy// paper SPE-169012-MS presented at theSPE Unconventional Resources Conference,1-3 April 2014the Woodlands, Texas, USA.
- SUN Yang,DU Zhimin,SUN Lei,et al. Injection CO2 pre-plug + N2 substitution enhanced oil recovery mechanism[J].Journal of Southwest Petroleum University(Natural Science Edition), 2012, 34(03):89-97.
- HOFFMAN B T n huff-n-puff gas injection pilot projectsin the Eagle Ford[C]. SPE 189816-MS, 2018.doi: 10.-2118/189816-MS.
- THAKUR G.Enhanced recovery technologies for uncon-ventional oil reservoirs[J]. Journal of Petroleum Techno-logy, 2019, 71(9): 66-69.doi: 10.2118/0919-0066-JPT.
- Chen C, Balhoff M, Mohanty K K. Effect of reservoir heterogene on primary recovery and CO, huff n' puff recovery in shale-oil reservoirs[J]. SPE Reservoir Evaluation and Engineering; 2015,17(3):404-413.
- Zhu P, Balhoff M T, Mohanty K K. Simulation of fracture- to-fracture gas injection in an oil- rich shale[C]// paper SPE-175131-MS presented at the SPE Annual Technical Conferenceand Exhibition,28-30 September 2015,Houston, Texas, USA.
- OUYANG Weiping,ZHANG Mian,SUN Hu,et al. Numerical simulation study on fracturing seepage and flooding of shale oil horizontal well[J].Oil drilling technology,2021,49(04):143-149.
- ZHU Haiyan,XU Xinqin,ZHONG Anhai,et al. Numerical simulation of equilibrium propagation of tight cutting fractures in deep shale oil horizontal wells: A case study of YYP1 well in Shengli Oilfield[J].Oil and gas geology,2022,43(01):229-240.
- SHENG Xiang, ZHANG Ye. Technological progress of foreign shale oil development and its enlightenment [J]. Petroleum Geology and Engineering,2015,29(06):80-83+ 88+ 143.
- COTE A, CAMERON N,GRUNBERG D. When is there too muchfracture intensity?[R].SPE 195895-MS.2019.
- LI Guoxin, LUO Kai, SHI Deloitte. Key technologies, advanced concepts and important enlightenments for the successful development of shale oil and gas--Taking the Duvone project in Canada as an example[J]. Oil exploration and development,2020,47(04):739-749.
- JIANG Tingxue, WANG Haitao. Current situation and development suggestions of sectional fracturing technology for horizontal wells of Sinopec shale oil[J]. Oil drilling technology, 2021, 49(04):14-21.
- XIE Xin, DOU Zhengdao, YANG Xiaomin, et al. Application of small borehole acceleration technology in shale oil development [J].Oil and gas reservoir evaluation and development, 2023,13(01):83-90.