白莲枯竭凝析气藏CCUS-EOR控制机制

doi:10.11885/j.issn.1674-5086.2022.07.05.01

摘要/Abstract

摘要： 为了进一步提高白莲构造带枯竭期凝析气藏剩余凝析油气采收率，同时实现富含CO$_2$气藏协同开发综合利用效益，基于油气藏开发过程自主碳减排、碳中和理念，福山油田确立了利用白莲构造带富含CO$_2$气藏采出伴生气直接回注到枯竭凝析气藏，实施基于CCUS-EOR的协同发展战略。基于注气混相驱机理分析、长细管注气驱油效率及MMP分析、储层岩芯气驱反凝析油渗流特征分析以及注气驱数值模拟等研究方法，开展莲4断块枯竭凝析气藏回注富含CO$_2$伴生气提高凝析油气采收率控制机制研究，得到注气可使剩余反凝析油饱和度增加1.85倍；注气压力达到20.4 MPa可实现多次接触混相，最小工程混相压力21.13 MPa；长岩芯混相驱凝析油采出程度可达68.94%。在此技术政策界限基础上，制定了周期注气重力混相驱先导试验方案并实施了矿场实践。数值模拟及现场井流物组成变化监测及流体相态分析表明，注入气通过增溶膨胀、萃取抽提、混相驱以及储层非均质渗流机理协同作用为油气运移和凝析油气流向变化的主要控制机制。后续开井试生产实效显著，为枯竭凝析气藏实现CCUS-EOR规模化应用，进一步提高凝析油气采收率及自主碳减排技术政策的选择提供了有实用价值的参考和案例。

关键词: 枯竭凝析气藏, CO₂混相驱, 控制机制, 提高采收率, 碳减排

Abstract: To further improve the recovery of the remaining condensate oil and gas reservoirs in the depleted stage of Bailian structural oil and gas reservoir group in Fushan Sag, and to give full play to the comprehensive utilization benefits of the replacement development of CO$_2$-rich gas reservoirs in the Bailian structural belt, based on the development strategy of "carbon peaking and carbon neutralization", combined with the concept of independent carbon emission reduction and carbon neutralization during oil and gas reservoir development, Fushan Oilfield has established a development strategy based on CCUS-EOR technology to directly inject the associated gas recovered from CO$_2$-rich gas reservoirs in the Bailian structural belt into depleted condensate gas reservoirs. The phase analysis of the mixed-phase drive mechanism, the analysis of the long thin tube gas injection drive efficiency and minimum mixed-phase pressure, the analysis of the seepage characteristics of the gas-driven anticondensate in the reservoir core, and the numerical simulation of the gas injection drive components were carried out to study the control mechanism. It is found that gas injection can increase the remaining anticondensate saturation by 1.85 times. When gas injection pressure rises to 20.4 MPa, the mixed fluid can achieve a multiple-contact mixing phase. And the minimum engineering MMP is 21.13 MPa. The condensate recovery of long core mixed phase drive can reach 68.94%. The pilot test scheme of periodic gas injection assisted with gravity miscible flooding was determined and carried out. Numerical simulation and the monitoring of the change of flow composition and PVT phase analysis method in the field show that the control mechanism of the oil and gas transportation and the change of condensate and gas flow direction is the synergistic effect of dissolution and swelling, extraction, gravity mixed-phase drive and reservoir inhomogeneous flow, which provides a reference for the selection of CCUS-EOR technical policy for resuming production of condensate oil in subsequent production wells.

Key words: depleted condensate gas reservoir, CO$_2$ miscible flooding, control mechanism, enhanced oil recovery, carbon emission reduction

中图分类号:

TE372

崔凯, 陈强, 刘德生, 孙雷, 汪勇. 白莲枯竭凝析气藏CCUS-EOR控制机制[J]. 西南石油大学学报(自然科学版), 2025, 47(2): 115-126.

CUI Kai, CHEN Qiang, LIU Desheng, SUN Lei, WANG Yong. Control Mechanism of CCUS-EOR for CO₂-rich Gas Injection in Bailian Condensate Reservoir[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2025, 47(2): 115-126.

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参考文献

[1] 沈平平，江怀友. 温室气体提高采收率的资源化利用及地下埋存[J]. 中国工程科学， 2009， 11（5）： 54-59. doi： 10.3969/j.issn.1009-1742.2009.05.007 SHEN Pingping, JIANG Huaiyou. Utilization of greenhouse gas as resource in EOR and storage it underground[J]. Strategic Study of CAE, 2009, 11(5): 54-59. doi: 10.3969/j.issn.1009-1742.2009.05.007
[2] 袁士义，王强，李军诗，等. 注气提高采收率技术进展及前景展望[J]. 石油学报， 2020， 41（12）： 1623-1632. doi： 10.7623/syxb202012014 YUAN Shiyi, WANG Qiang, LI Junshi, et al. Ior by gas injection technology progress and prospect[J]. Acta Petrolei Sinica, 2020, 41(12): 1623-1632. doi: 10.7623/syxb202012014
[3] 臧雅琼，高振记，钟伟. CO₂地质封存国内外研究概况与应用[J]. 环境工程技术学报， 2012， 2（6）： 503-507. doi： 10.3969/j.issn.1674-991X.2012.06.079 ZANG Yaqiong, GAO Zhenji, ZHONG Wei. Overview of research and application of CO₂ geological sequestration at home and abroad[J]. Journal of Environmental Engineering Technology, 2012, 2(6): 503-507. doi: 10.3969/j. issn.1674-991X.2012.06.079
[4] 侯正猛. CO₂地质封存技术与潜力[D]. 成都：西南石油大学， 2010. HOU Zhengmeng. CO₂ geological storage technology and potential[D]. Chengdu: Southwest Petroleum University, 2010.
[5] 计秉玉. 国内外油田提高采收率技术进展与展望[J]. 石油与天然气地质， 2012， 33（1）： 111-117. JI Bingyu. Progress and prospects of enhanced oil recovery technologies at home and abroad[J]. Oil & Gas Geology, 2012, 33(1): 111-117.
[6] 任韶然，张莉，张亮. CO₂地质埋存：国外示范工程及其对中国的启示[J]. 中国石油大学学报（自然科学版）， 2010， 34（1）： 9398. REN Shaoran, ZHANG Li, ZHANG Liang. Geological storage of CO₂: Overseas demonstration projects and its implications to China[J]. Journal of China University of Petroleum, 2010, 34(1): 93-98.
[7] 段振豪，孙枢，张驰，等. 减少温室气体向大气层的排放——CO₂地下储藏研究[J]. 地质评论， 2004， 50（5）： 514-519. doi： 10.3321/j.issn:0371-5736.2004.05.010 DUAN Zhenhao, SUN Shu, ZHANG Chi, et al. Reducing the release of CO₂ into atmosphere: CO₂ sequestration[J]. Geological Review, 2004, 50(5): 514-519. doi: 10.3321/j.issn:0371-5736.2004.05.010
[8] OLDENBURG C M. Carbon sequestation in natural gas reservoirs: Enhanced gas recovery and natural gas storage[C]. California: Tough Symposium, 2003.
[9] BLOK K, WILLIAMS R H, KATOFSKY R E, et al. Hydrogen production from natural gas, sequestration of recovered CO₂ in depleted gas wells and enhanced gas recovery[J]. Energy, 1997, 22(2-3): 161-168.
[10] 丁根. 国际油服公司碳捕集、利用与封存业务的现状与展望[J]. 世界石油工业， 2022， 29（4）： 28-33. DING Gen. Current situation and prospects of carbon capture, utilization and sequestration business of international oilfield services companies[J]. World Petroleum Industry, 2022, 29(4): 28-33.
[11] 丁帅伟，席怡，刘骞，等. 基于粒子群算法的低渗油藏CO₂驱油与封存自动优化[J]. 中国石油大学学报（自然科学版）， 2022， 46（4）： 109-115. doi： 10.3969/j.issn.1673-5005.2022.04.013 DING Shuaiwei, XI Yi, LIU Qian, et al. An automatic optimization method of CO₂ injection for enhanced oil recovery and storage in low permeability reservoirs based on particle swarm optimization algorithm[J]. Journal of China University of Petroleum (Edition of Natural Science), 2022, 46(4): 109-115. doi: 10.3969/j.issn.1673-5005.2022.04.013
[12] TURTA A T, SIM S S K, SINGHAL A K, et al. Basic investigations on enhanced gas recovery by gas-gas displacement[J]. Journal of Canadian Petroleum Technology, 2009, 47(10): 39-44.
[13] POOLADI-DARVISH M, HONG H, THEYS S, et al. CO₂ injection for enhanced gas recovery and geological storage of CO₂ in the Long Coulee Glauconite F Pool, Alberta[C]. SPE 115789-MS, 2008. doi: 10.2118/115789-MS
[14] KUBUS P. CCS and CO₂-storage possibilities in Hungary[C]. SPE 139555-MS, 2010. doi: 10.2118/139555-MS
[15] MEER L G H, KREFT E, GEEL C, et al. K12-B a test site for CO₂ storage and enhanced gas recovery[C]. SPE 94128-MS, 2005. doi: 10.2118/94128-MS
[16] 沈平平，韩冬. 油藏流体的PVT与相态[M]. 北京：石油工业出版社， 2000. SHEN Pingping, HAN Dong. PVT and phase states of reservoir fluids[M]. Beijing: Petroleum Industry Press, 2000.
[17] 孙扬，杜志敏，孙雷，等. 注CO₂前置段塞+ N₂顶替提高采收率混相驱机理[J]. 西南石油大学学报（自然科学版）， 2012， 34（3）： 89-97. doi： 10.3863/j.issn.1674-5086.2012.03.013 SUN Yang, DU Zhimin, SUN Lei, et al. Mechanism research of enhancement oil recovery by CO₂ slugs pushed by N₂[J]. Journal of Southwest Petroleum University (Science & Technology Edition)， 2012， 34(3): 89-97． doi: 10.3863/j.issn.1674-5086.2012.03.013
[18] 庞进. 顶部注气重力稳定驱提高采收率机理研究[D]. 成都：西南石油大学， 2006. PANG Jin. Study on the mechanism of enhanced oil recovery with top gas injection gravity-stabilized flooding[D]. Chengdu: Southwest Petroleum University, 2006.
[19] 孙扬. 天然气藏临界CO₂埋存及提高天然气采收率机理[D]. 成都：西南石油大学， 2012. SUN Yang. Mechanism of supercritical-CO₂ storage with enhanced gas recovery in the natural gas reservoirs[D]. Chengdu: Southwest Petroleum University, 2012.
[20] 夏彪，崔飞飞，孙雷, 等. X区块注CO₂和 N₂提高反凝析油采收率机理研究[J]. 复杂油气藏， 2013， 6（1）： 50-53. doi： 10.3969/j.issn.1674-4667.2013.01.014 XIA Biao, CUI Feifei, SUN Lei, et al. Study on mechanisms of enhanced condensate oil by CO₂ and N₂ gas injection in Block X[J]. Complex Hydrocarbon Reservoirs, 2013, 6(1): 50-53. doi: 10.3969/j.issn.1674-4667.2013. 01.014
[21] 侯大力，罗平亚，孙雷，等. 近临界凝析气藏动态相态行为[J]. 大庆石油地质与开发， 2014， 33（1）： 86-91. doi： 10.3969/J.ISSN.1000-3754.2014.01.016 HOU Dali, LUO Pingya, SUN Lei, et al. Dynamic phase behaviors of a near-critical condensate gas reservoir[J]. Petroleum Geology & Oilfield Development in Daqing, 2014, 33(1): 86-91. doi: 10.3969/J.ISSN.1000-3754. 2014.01.016
[22] 陈卫东，郭天民. 近临界油气藏流体相行为研究的现状[J]. 石油勘探与开发， 1996， 23（1）： 76-79. CHEN Weidong, GUO Tianmin. A review of experiment and classical model for nearcritical point fluid phase action in reservoires[J]. Petroleum Exploration and Development, 1996, 23(1): 76-79.
[23] 卢雪梅. CCUS在油气行业应用进展[J]. 石油与天然气地质， 2021， 42（4）： 762. LU Xuemei. Application progress of CCUS in oil and gas industry[J]. Oil & Gas Geology, 2021, 42(4): 762.
[24] 冯文彦. 超临界凝析气藏开发后期注CO₂提高采收率 ——以北部湾盆地福山凹陷莲4 断块为例[J]. 天然气工业， 2016， 36（7）： 5762. doi： 10.3787/j.issn.1000-0976.2016.07.008 FENG Wenyan. Recovery enhancement at the later stage of supercritical condensate gas reservoir development via CO₂ injection: A case study on Lian 4 fault block in the Fushan Sag, Beibuwan Basin[J]. Natural Gas Industry, 2016, 36(7): 57-62. doi: 10.3787/j.issn.1000-0976.2016. 07.008
[25] 江同文，孙龙德，谢伟，等. 凝析气藏循环注气三元开发机理与提高凝析油采收率新技术[J]. 石油学报， 2021， 42（12）： 1654-1664. doi： 10.7623/syxb202112010 JIANG Tongwen, SUN Longde, XIE Wei, et al. Threeelement development mechanism of cyclic gas injection in condensate gas reservoirs and a new technique of enhancing condensate oil recovery[J]. Acta Petrolei Sinica, 2021, 42(12): 1654-1664. doi: 10.7623/syxb202112010
[26] 关振良，谢丛姣，齐冉，等. 二氧化碳提高石油采收率数值模拟研究[J]. 天然气工业， 2007， 27（4）： 142-144. doi： 10.3321/j.issn:1000-0976.2007.04.045 GUAN Zhenliang, XIE Congjiao, QI Ran, et al. Numerical simulation study on enhancing recovery factor by CO₂ displacement[J]. Natural Gas Industry, 2007, 27(4): 142-144. doi: 10.3321/j.issn:1000-0976.2007.04.045
[27] 任韶然，任博，李永钊，等. CO₂地质埋存监测技术及其应用分析[J]. 中国石油大学学报（自然科学版）， 2012， 36（1）： 106-111. doi： 10.3969/j.issn.1673-5005.2012.01.018 REN Shaoran, REN Bo, LI Yongzhao, et al. Monitoring techniques of CO₂ geological storage and its application analysis[J]. Journal of China University of Petroleum (Edition of Natural Science), 2012, 36(1): 106-111. doi: 10. 3969/j.issn.1673-5005.2012.01.018
[28] 何新兴，黄召庭，廉黎明，等. 天然气注储协同提高凝析气藏采收率关键技术[J]. 天然气工业， 2023， 43（1）： 86-95. doi： 10.3787/j.issn.1000-0976.2023.01.009 HE Xinxing, HUANG Zhaoting, LIAN Liming, et al. Key technologies for enhancing the recovery of condensate gas reservoirs by gas injection-storage coordination[J]. Natural Gas Industry, 2023, 43(1): 86-95. doi: 10.3787/j.issn.1000-0976.2023.01.009
[29] 孙景耀，于姣姣，马勇新，等. 海上油田伴生气驱油提采与储气库协同建设[J]. 天然气地球科学， 2024， 35（3）： 553-562. doi： 10.11764/j.issn.1672-1926.2023.09.017 SUN Jingyao, YU Jiaojiao, MA Yongxin, et al. Practice of collaborative construction of associated gas drive stimulation oil recovery and underground gas storage in offshore oil fields[J]. Natural Gas Geoscience, 2024, 35(3): 553-562. doi: 10.11764/j.issn.1672-1926.2023.09.017
[30] 宋新民，王峰，马德胜，等. 中国石油二氧化碳捕集、驱油与埋存技术进展及展望[J]. 石油勘探与开发， 2023， 50（1）： 206-218. doi： 10.11698/PED.20220366 SONG Xinmin, WANG Feng, MA Desheng, et al. Progress and prospect of carbon dioxide capture, utilization and storage in CNPC oilfields[J]. Petroleum Exploration and Development, 2023, 50(1): 206-218. doi: 10.11698/PED.20220366