致密油藏分段压裂水平井二氧化碳蓄能吞吐方式
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摘要
随着油田勘探开发程度不断加深,水平井初期产油量低且递减快、地层能量补充不足等问题严重地影响了油田的后续开发。通过油藏数值模拟技术,建立概念模型和实际模型,对致密油藏水平井注二氧化碳展开针对性研究,优化能量补充方式,选择合理的生产参数,明确致密油层水平井开发技术对策。结果表明,相同储层条件下,平注平采较直注平采的开发方式可以有效补充地层能量,而二氧化碳吞吐开发方式更合适渗透率在0. 2～0. 3 m D的储层。就研究区块而言,优选其开发方式适合于注二氧化碳吞吐,同时,相较于每吞吐轮次等量注入二氧化碳的方案,逐步提高每吞吐轮次的二氧化碳注入量的方案可以更为有效补充地层能量,使每个吞吐周期产出更多的油,随着吞吐周期的增加,开发效果愈加明显。
With the deepening of oil field exploration,the problems such as low initial oil production and rapid decline of horizontal wells and insufficient formation energy supplement have seriously affected the subsequent development of oil fields. The purpose was to study the effect about injecting carbon dioxide into the tight oil reservoir through the horizontal well,optimize energy supplementation mode,select the reasonable production parameters,and clarify technical countermeasures for the horizontal wells in tight oil reservoirs,by using numerical simulation to establish conceptual model and practical model. The results show that,at the same reservoir conditions,the development method of horizontal injection and horizontal production can effectively supplement the formation energy compared with that of vertical injection and horizontal production,while the development method of carbon dioxide huff and puff is more suitable for reservoirs that the permeability is below 0. 2 ～ 0. 3 m D. In terms of the research block,the preferred development method is carbon dioxide huff and puff. At the same time,compared with the solution which injects the same CO_2 injection throughput in per rounds,the scheme which gradually improves the CO_2 injection throughput in per rounds can more effectively complement formation energy,produce more oil in each stimulation cycle. As the throughput rounds increasing,the development effect becomes more and more obvious.
With the deepening of oil field exploration,the problems such as low initial oil production and rapid decline of horizontal wells and insufficient formation energy supplement have seriously affected the subsequent development of oil fields. The purpose was to study the effect about injecting carbon dioxide into the tight oil reservoir through the horizontal well,optimize energy supplementation mode,select the reasonable production parameters,and clarify technical countermeasures for the horizontal wells in tight oil reservoirs,by using numerical simulation to establish conceptual model and practical model. The results show that,at the same reservoir conditions,the development method of horizontal injection and horizontal production can effectively supplement the formation energy compared with that of vertical injection and horizontal production,while the development method of carbon dioxide huff and puff is more suitable for reservoirs that the permeability is below 0. 2 ～ 0. 3 m D. In terms of the research block,the preferred development method is carbon dioxide huff and puff. At the same time,compared with the solution which injects the same CO_2 injection throughput in per rounds,the scheme which gradually improves the CO_2 injection throughput in per rounds can more effectively complement formation energy,produce more oil in each stimulation cycle. As the throughput rounds increasing,the development effect becomes more and more obvious.
引文
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11 Huang S,Yao Y D,Zhang S,et al. Pressure transient analysis of multi-fractured horizontal wells in tight oil reservoirs with consideration of stress sensitivity[J]. Arabian Journal of Geosciences,2018,11(11):1-7
12 Biryukov D,Kuchuk F J. Pressure transient behavior of horizontal wells intersecting multiple hydraulic fractures in naturally fractured reservoirs[J]. Transport in Porous Media,2015,110(3):369-408
13 蔡文斌,李兆敏,张霞林,等.低渗透油藏水平井压裂理论及现场工艺探讨[J].石油勘探与开发,2009,36(1):80-85Cai Wenbin,Li Zhaomin,Zhang Xialin,et al. Horizontal well fracturing technology for reservoirs with low permeability[J]. Petroleum Exploration and Development,2009,36(1):80-85
14 廉黎明,秦积舜,杨思玉,等.二氧化碳驱数学模型研究进展及发展方向[J].油气地质与采收率,2013,20(2):77-82Lian Liming,Qin Jishun,Yang Siyu,et al. Research progress and development directions of mathematical models in CO2flooding[J].Petroleum Geology and Recovery Efficiency,2013,20(2):77-82
15 关振良,谢丛姣,齐冉,等.二氧化碳驱提高石油采收率数值模拟研究[J].天然气工业,2007,27(4):142-144Guan Zhenliang,Xie Congjiao,Qi ran,et al. Numerical simulation study on enhancing recovery factor by CO2displacement[J]. Natural Gas Industry,2007,27(4):142-144
16 Ekhlasjoo I,Vosoughi M,Shadizadeh S R,et al. An experimental and simulation study of heavy oil recovery by the liquid CO2huff and puff method[J]. Energy Sources,2014,36(23):2587-2594
17 刘道杰,史英,轩玲玲,等.特高含水油藏开发后期深部调驱+二氧化碳吞吐技术[J].特种油气藏,2018,25(2):65-69Liu Daojie,Shi Ying,Xuan Lingling,et al. In-depth profile control and carbon dioxide huff-puff in the late stage of ultra-high water-cut oil reservoir development[J]. Special Oil and Gas Reservoirs,2018,25(2):65-69
18 Feng J C,Li X S,Li G,et al. Effect of horizontal and vertical well patterns on methane hydrate dissociation behaviors in pilot-scale hydrate simulator[J]. Applied Energy,2015,145:69-79
19 骆雨田,杨正明,何英,等.致密油储层特征及有效动用研究[J].非常规油气,2014,1(1):47-54Luo Yutian,Yang Zhengming,Heying,et al. The research of lithology characteristics and effective development in tight oil reservoir[J]. Unconventional Oil and Gas,2014,1(1):47-54
20 李道伦.非常规油气流动机理研究与应用[M].北京:石油工业出版社,2018:101-122Li Daolun. Research and application of unconventional oil and gas flow mechanism[M]. Beijing:Petroleum Industry Press,2018:101-122
21 蔺丽君,杨正明,王学武,等.致密油藏CO2驱综合效益评价[J].科技导报,2015,33(15):38-42Lin Lijun,Yang Zhengming,Wang Xuewu,et al. Comprehensive benefits evaluation of CO2displacement in tight oilreservoirs exploitation[J]. Science and Technology Review,2015,33(15):38-42
22 Xiao Q H,Wang Z Y,Yang Z M,et al. Porous flow characteristics of solution-gas drive in tight oil reservoirs[J]. Open Physics,2018,16(1):412-418
23 孙丽丽,李治平,窦宏恩,等.超低渗透油藏CO2驱注入参数优化的实验研究[J].科学技术与工程,2018,18(12):66-70Sun Lili,Li Zhiping,Dou Hongen,et al. Experiment investigation of the parameters optimization of CO2flooding in ultra-low permeability reservoir[J]. Science Technology and Engineering,2018,18(12):66-70
24 杨正明,刘学伟,张仲宏,等.致密油藏分段压裂水平井注二氧化碳吞吐物理模拟[J].石油学报,2015,36(6):724-729Yang Zhengming,Liu Xuewei,Zhang Zhonghong,et al. Physical simulation of staged-fracturing horizontal well using CO2huff and puff in tight oil reservoir[J]. Acta Petrolei Sinica,2015,36(6):724-729
2 Hill R J,Jarvie D M,Zumberge J,et al. Oil and gas geochemistry and petroleum systems of the Fort Worth Basin[J]. American Association of Petroleum Geologists Bulletin,2007,91(4):445
3 林森虎,邹才能,袁选俊,等.美国致密油开发现状及启示[J].岩性油气藏,2011,23(4):25-30Lin Senhu,Zou Caineng,Yuan Xuanjun,et al. Status quo of tight exploitation in the United States and its implication[J]. Lithologic Reservoirs,2011,23(4):25-30
4 张君峰,毕海滨,许浩,等.国外致密油勘探开发新进展及借鉴意义[J].石油学报,2015,36(2):127-137Zhang Junfeng,Bi Haibin,Xu Hao,et al. New progress and reference significance of overseas tight oil exploration and development[J]. Acta Petrolei Sinica,2015,36(2):127-137
5 邹才能.非常规油气地质[M].北京:地质出版社,2011:15-34Zou Caineng. Unconventional petroleum geology[M]. Beijing:Geological Publishing House,2011:15-34
6 王社教,蔚远江,郭秋麟,等.致密油资源评价新进展[J].石油学报,2014,35(6):1095-1105Wang Shejiao,Yu Yuanjiang,Guo Qiulin,et al. New advance in resources evaluation of tight oil[J]. Acta Petrolei Sinica,2014,35(6):1095-1105
7 贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350Jia Chengzao,Zou Caineng,Li Jianzhong,et al. Assessment criteria,main types,basic features and resource prospects of the tight oil in China[J]. Acta Petrolei Sinica,2012,33(3):343-350
8 邹才能,朱如凯,吴松涛,等.常规与非常规油气聚集类型、特征、机理及展望——以中国致密油和致密气为例[J].石油学报,2012,33(2):173-187Zou Caineng,Zhu Rukai,Wu Songtao,et al. Types,characteristics,genesis and prospects of conventional and un conventional hydrocarbon accumulations:Taking tight oil and tight gas in China as an instance[J]. Acta Petrolei Sinica,2012,33(2):173-187
9 杜金虎,刘合,马德胜,等.试论中国陆相致密油有效开发技术[J].石油勘探与开发,2014,41(2):198-205Du Jinhu,Liu He,Ma Desheng,et al. Discussion on effective development techniques for continental oil in China[J]. Petroleum Exploration and Development,2014,41(2):198-205
10 刘万涛,高武彬,郑光辉,等.鄂尔多斯盆地长7致密油体积压裂水平井产能预测研究[J].科学技术与工程,2016,16(11):162-166Liu Wantao,Gao Wubin,Zheng Guanghui,et al. A study of volumetric fractured horizontal well productivity of Chang 7 tight oil in Ordos Basin[J]. Science Technology and Engineering,2016,16(11):162-166
11 Huang S,Yao Y D,Zhang S,et al. Pressure transient analysis of multi-fractured horizontal wells in tight oil reservoirs with consideration of stress sensitivity[J]. Arabian Journal of Geosciences,2018,11(11):1-7
12 Biryukov D,Kuchuk F J. Pressure transient behavior of horizontal wells intersecting multiple hydraulic fractures in naturally fractured reservoirs[J]. Transport in Porous Media,2015,110(3):369-408
13 蔡文斌,李兆敏,张霞林,等.低渗透油藏水平井压裂理论及现场工艺探讨[J].石油勘探与开发,2009,36(1):80-85Cai Wenbin,Li Zhaomin,Zhang Xialin,et al. Horizontal well fracturing technology for reservoirs with low permeability[J]. Petroleum Exploration and Development,2009,36(1):80-85
14 廉黎明,秦积舜,杨思玉,等.二氧化碳驱数学模型研究进展及发展方向[J].油气地质与采收率,2013,20(2):77-82Lian Liming,Qin Jishun,Yang Siyu,et al. Research progress and development directions of mathematical models in CO2flooding[J].Petroleum Geology and Recovery Efficiency,2013,20(2):77-82
15 关振良,谢丛姣,齐冉,等.二氧化碳驱提高石油采收率数值模拟研究[J].天然气工业,2007,27(4):142-144Guan Zhenliang,Xie Congjiao,Qi ran,et al. Numerical simulation study on enhancing recovery factor by CO2displacement[J]. Natural Gas Industry,2007,27(4):142-144
16 Ekhlasjoo I,Vosoughi M,Shadizadeh S R,et al. An experimental and simulation study of heavy oil recovery by the liquid CO2huff and puff method[J]. Energy Sources,2014,36(23):2587-2594
17 刘道杰,史英,轩玲玲,等.特高含水油藏开发后期深部调驱+二氧化碳吞吐技术[J].特种油气藏,2018,25(2):65-69Liu Daojie,Shi Ying,Xuan Lingling,et al. In-depth profile control and carbon dioxide huff-puff in the late stage of ultra-high water-cut oil reservoir development[J]. Special Oil and Gas Reservoirs,2018,25(2):65-69
18 Feng J C,Li X S,Li G,et al. Effect of horizontal and vertical well patterns on methane hydrate dissociation behaviors in pilot-scale hydrate simulator[J]. Applied Energy,2015,145:69-79
19 骆雨田,杨正明,何英,等.致密油储层特征及有效动用研究[J].非常规油气,2014,1(1):47-54Luo Yutian,Yang Zhengming,Heying,et al. The research of lithology characteristics and effective development in tight oil reservoir[J]. Unconventional Oil and Gas,2014,1(1):47-54
20 李道伦.非常规油气流动机理研究与应用[M].北京:石油工业出版社,2018:101-122Li Daolun. Research and application of unconventional oil and gas flow mechanism[M]. Beijing:Petroleum Industry Press,2018:101-122
21 蔺丽君,杨正明,王学武,等.致密油藏CO2驱综合效益评价[J].科技导报,2015,33(15):38-42Lin Lijun,Yang Zhengming,Wang Xuewu,et al. Comprehensive benefits evaluation of CO2displacement in tight oilreservoirs exploitation[J]. Science and Technology Review,2015,33(15):38-42
22 Xiao Q H,Wang Z Y,Yang Z M,et al. Porous flow characteristics of solution-gas drive in tight oil reservoirs[J]. Open Physics,2018,16(1):412-418
23 孙丽丽,李治平,窦宏恩,等.超低渗透油藏CO2驱注入参数优化的实验研究[J].科学技术与工程,2018,18(12):66-70Sun Lili,Li Zhiping,Dou Hongen,et al. Experiment investigation of the parameters optimization of CO2flooding in ultra-low permeability reservoir[J]. Science Technology and Engineering,2018,18(12):66-70
24 杨正明,刘学伟,张仲宏,等.致密油藏分段压裂水平井注二氧化碳吞吐物理模拟[J].石油学报,2015,36(6):724-729Yang Zhengming,Liu Xuewei,Zhang Zhonghong,et al. Physical simulation of staged-fracturing horizontal well using CO2huff and puff in tight oil reservoir[J]. Acta Petrolei Sinica,2015,36(6):724-729