低渗-致密油藏注气吞吐CO2—原油相互作用与传质规律

doi:10.7623/syxb202501018

石油学报 ›› 2025, Vol. 46 ›› Issue (1): 265-278.DOI: 10.7623/syxb202501018

• 油田开发 • 上一篇

低渗-致密油藏注气吞吐CO₂—原油相互作用与传质规律

王敬^1,2, 张洪权^1,2, 姬泽敏³, 刘子龙^1,2, 刘慧卿^1,2

1. 油气资源与工程全国重点实验室, 中国石油大学(北京) 北京 102249;
2. 中国石油大学(北京)石油工程教育部重点实验室北京 102249;
3. 中国石油勘探开发研究院北京 100083

收稿日期:2024-04-29 修回日期:2024-07-02 发布日期:2025-02-15
作者简介:王敬,男,1985年10月生,2013年获中国石油大学(北京)博士学位,现为中国石油大学(北京)石油工程学院教授、博士生导师,主要从事复杂油气藏渗流理论及应用的教学与科研工作。Email:wangjing8510@163.com
基金资助:
国家自然科学基金项目(No.52074316)和中国石油大学(北京)科研基金项目(2462018QNXZ01)资助。

Law of interaction and mass transfer of CO₂ and crude oil during gas injection huff and puff in low permeability tight reservoirs

Wang Jing^1,2, Zhang Hongquan^1,2, Ji Zemin³, Liu Zilong^1,2, Liu Huiqing^1,2

1. State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum(Beijing), Beijing 102249, China;
2. MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
3. PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China

Received:2024-04-29 Revised:2024-07-02 Published:2025-02-15

摘要/Abstract

摘要： 微米—纳米级孔隙中CO₂与原油的相互作用决定了原油的开发效果,而注CO₂吞吐的注排方式则直接影响着二者的相互作用。基于核磁共振与分子模拟相结合的方法,系统研究了不同注排方式下CO₂与原油相互作用规律及其对开发的影响特性,分析了注CO₂吞吐过程中原油微观动态演化过程及分子作用机制。研究结果表明:在相同的压力变化条件下,线性增压比脉冲增压注入能够获得更好的CO₂与原油作用效果,充分的对流传质作用使得CO₂与原油相互溶解和混相;对比吐气前与吐气后的原油采出情况,线性降压比脉冲降压排采能更有效地携带出原油,线性增压+线性降压注排组合实验的采收率为37.52 % ,高于脉冲增压+脉冲降压注排组合的32.49 % 。此外,建立了注气吞吐CO₂—原油相互作用的微观机理模型,明确了CO₂与原油的分子间作用力及溶解特性。线性增压注入和线性降压排采时,CO₂—原油的促溶效果更佳,CO₂—原油交汇点数密度值均高于脉冲增压注入和脉冲降压排采,而溶解度参数差均低于脉冲增压注入和脉冲降压排采,呈现出更好的混溶特性与原油剥离效果。

关键词: 低渗-致密油藏, 二氧化碳吞吐, 注采方式, 核磁共振, 分子模拟

Abstract: The interaction between CO₂ and crude oil in micro-nano pores is a decisive factor determining the crude oil development effect, which is directly influenced by the injection and discharge method of CO₂ huff and puff. Based on the combined use of nuclear magnetic resonance and molecular simulation, the paper systematically investigates the law of the interaction between CO₂ and crude oil under different injection and discharge methods and its influencing characteristics on oil development, and analyzes the micro dynamic evolution process and molecular mechanism of crude oil during CO₂ injection huff and puff. The findings show that under the same pressure change conditions, linear pressurization injection can achieve better effect of interaction between CO₂ and crude oil than pulse pressurization injection, and sufficient convective mass transfer effect enable CO₂ and crude oil to dissolve and be miscible with each other. Through comparison of the crude oil recovery before and after huff, it is found that linear depressurization is more efficient in carrying and discharging crude oil than pulse depressurization extraction. The recovery rate of the injection and discharge combination experiment of linear pressurization and linear depressurization is 37.52 % , which is higher than 32.49 % achieved by the combination of injection and discharge through pulse pressurization and pulse depressurization. In addition, a micro mechanism model has been established for the interaction between CO₂ and crude oil during gas injection huff and puff, and the intermolecular forces and dissolution characteristics between CO₂ and crude oil have also been clarified. Under linear pressurization injection and linear depressurization extraction, the solubility promoting effect of CO₂ - crude oil is better, the number density value of CO₂ - crude oil intersection points is higher than that of pulse pressurization injection and pulse depressurization extraction, while the difference in solubility parameters is lower than that of pulse pressurization injection and pulse depressurization extraction, showing better miscible characteristics and crude oil stripping effect.

Key words: low permeability tight reservoir, carbon dioxide huff and puff, injection-production method, nuclear magnetic resonance, molecular simulation

中图分类号:

TE135

王敬, 张洪权, 姬泽敏, 刘子龙, 刘慧卿. 低渗-致密油藏注气吞吐CO₂—原油相互作用与传质规律[J]. 石油学报, 2025, 46(1): 265-278.

Wang Jing, Zhang Hongquan, Ji Zemin, Liu Zilong, Liu Huiqing. Law of interaction and mass transfer of CO₂ and crude oil during gas injection huff and puff in low permeability tight reservoirs[J]. Acta Petrolei Sinica, 2025, 46(1): 265-278.

参考文献

[1] 闫林, 陈福利, 王志平, 等. 我国页岩油有效开发面临的挑战及关键技术研究[J].石油钻探技术, 2020, 48(3):63-69.
YAN Lin, CHEN Fuli, WANG Zhiping, et al.Challenges and technical countermeasures for effective development of shale oil in China[J].Petroleum Drilling Techniques, 2020, 48(3):63-69.
[2] 蒲春生, 康少飞, 蒲景阳, 等.中国致密油藏水平井注水吞吐技术进展与发展趋势[J].石油学报, 2023, 44(1):188-206.
PU Chunsheng, KANG Shaofei, PU Jingyang, et al.Progress and development trend of water huff-n-puff technology for horizontal wells in tight oil reservoirs in China[J].Acta Petrolei Sinica, 2023, 44(1):188-206.
[3] LI Lei, SU Yuliang, HAO Yongmao, et al.A comparative study of CO₂ and N₂ huff-n-puff EOR performance in shale oil production[J].Journal of Petroleum Science and Engineering, 2019, 181:106174.
[4] 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.
YUAN Shiyi, WANG Qiang, LI Junshi, et al.Technology progress and prospects of enhanced oil recovery by gas injection[J].Acta Petrolei Sinica, 2020, 41(12):1623-1632.
[5] 王海柱, 李根生, 郑永, 等.超临界CO₂压裂技术现状与展望[J].石油学报, 2020, 41(1):116-126.
WANG Haizhu, LI Gensheng, ZHENG Yong, et al.Research status and prospects of supercritical CO₂ fracturing technology[J].Acta Petrolei Sinica, 2020, 41(1):116-126.
[6] 王千, 杨胜来, 拜杰, 等.非均质多层储层中CO₂驱替方式对驱油效果及储层伤害的影响[J].石油学报, 2020, 41(7):875-884.
WANG Qian, YANG Shenglai, BAI Jie, et al.Influence of CO₂ flooding mode on oil displacement effect and reservoir damage in heterogeneous multi-layer reservoirs[J].Acta Petrolei Sinica, 2020, 41(7):875-884.
[7] 史晓东, 孙灵辉, 战剑飞, 等.松辽盆地北部致密油水平井二氧化碳吞吐技术及其应用[J].石油学报, 2022, 43(7):998-1006.
SHI Xiaodong, SUN Linghui, ZHAN Jianfei, et al.Carbon dioxide huff-puff technology and application in tight oil horizontal wells in the northern Songliao Basin[J].Acta Petrolei Sinica, 2022, 43(7):998-1006.
[8] 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):724-729.
YANG Zhengming, LIU Xuewei, ZHANG Zhonghong, et al.Physical simulation of staged-fracturing horizontal wells using CO₂ huff and puff in tight oil reservoirs[J].Acta Petrolei Sinica, 2015, 36(6):724-729.
[9] 周拓, 刘学伟, 王艳丽, 等.致密油藏水平井分段压裂CO₂吞吐实验研究[J].西南石油大学学报(自然科学版), 2017, 39(2):125-131.
ZHOU Tuo, LIU Xuewei, WANG Yanli, et al.Experiments of CO₂ huff-n-puff process in staged fracturing horizontal wells for developing tight oil reservoirs[J].Journal of Southwest Petroleum University(Science & Technology Edition), 2017, 39(2):125-131.
[10] 杨红, 吴志伟, 余华贵, 等.低渗油藏水驱后CO₂潜力评价及注采方式优选[J].石油与天然气化工, 2015, 44(3):89-93.
YANG Hong, WU Zhiwei, YU Huagui, et al.CO₂ flooding potential evaluation and its injection-production method optimization after water flooding in low permeability reservoir[J].Chemical Engineering of Oil & Gas, 2015, 44(3):89-93.
[11] 马铨峥, 杨胜来, 陈浩, 等.致密油储集层CO₂吞吐效果及影响因素分析——以新疆吉木萨尔凹陷芦草沟组为例[J].石油科学通报, 2018, 3(4):434-445.
MA Quanzheng, YANG Shenglai, CHEN Hao, et al.Effect and influencing factors of CO₂ huff and puff in a tight oil reservoir:taking the Lucaogou Formation in the Xinjiang Jimsar sag as an example[J].Petroleum Science Bulletin, 2018, 3(4):434-445.
[12] 汤翔, 李宜强, 韩雪, 等.致密油二氧化碳吞吐动态特征及影响因素[J].石油勘探与开发, 2021, 48(4):817-824.
TANG Xiang, LI Yiqiang, HAN Xue, et al.Dynamic characteristics and influencing factors of CO₂ huff and puff in tight oil reservoirs[J].Petroleum Exploration and Development, 2021, 48(4):817-824.
[13] 侯广.致密油体积压裂水平井CO₂吞吐实践与认识[J].大庆石油地质与开发, 2018, 37(3):163-167.
HOU Guang.Practice and understanding of the CO₂ huff-puff for the volume fractured horizontal well in tight oil reservoirs[J].Petroleum Geology and Oilfield Development in Daqing, 2018, 37(3):163-167.
[14] 刘刚.致密油体积压裂水平井CO₂吞吐注采参数优化[J].石油地质与工程, 2020, 34(2):90-93.
LIU Gang.Optimization of injection and production parameters of CO₂ huff and puff by horizontal wells with volume fracturing in tight oil[J].Petroleum Geology and Engineering, 2020, 34(2):90-93.
[15] ABEDINI A, TORABI F.On the CO₂ storage potential of cyclic CO₂ injection process for enhanced oil recovery[J].Fuel, 2014, 124:14-27.
[16] LI Zhiyu, LEI Zhengdong, SHEN Weijun, et al.A comprehensive review of the oil flow mechanism and numerical simulations in shale oil reservoirs[J].Energies, 2023, 16(8):3516.
[17] TANG Yong, HOU Chengxi, HE Youwei, et al.Review on pore structure characterization and microscopic flow mechanism of CO₂ flooding in porous media[J].Energy Technology, 2021, 9(1):2000787.
[18] WANG Lu, ZHANG Yifan, ZOU Rui, et al.A systematic review of CO₂ injection for enhanced oil recovery and carbon storage in shale reservoirs[J].International Journal of Hydrogen Energy, 2023, 48(95):37134-37165.
[19] 范希彬, 蒲万芬, 单江涛, 等.致密砾岩油藏CO₂吞吐提高采收率可行性研究[J].油气藏评价与开发, 2021, 11(6):831-836.
FAN Xibin, PU Wanfen, SHAN Jiangtao, et al.Feasibility of enhanced oil recovery by CO₂ huff-n-puff in tight conglomerate reservoir[J].Petroleum Reservoir Evaluation and Development, 2021, 11(6):831-836.
[20] 黄兴, 李响, 张益, 等.页岩油储集层二氧化碳吞吐纳米孔隙原油微观动用特征[J].石油勘探与开发, 2022, 49(3):557-564.
HUANG Xing, LI Xiang, ZHANG Yi, et al.Microscopic production characteristics of crude oil in nano-pores of shale oil reservoirs during CO₂ huff and puff[J].Petroleum Exploration and Development, 2022, 49(3):557-564.
[21] 贾瑞轩, 孙灵辉, 苏致新, 等.二氧化碳吞吐致密油藏的可动用性[J].断块油气田, 2020, 27(4):504-508.
JIA Ruixuan, SUN Linghui, SU Zhixin, et al.Availability of CO₂ huff and puff in tight reservoir[J].Fault-Block Oil & Gas Field, 2020, 27(4):504-508.
[22] 郎东江, 伦增珉, 吕成远, 等.页岩油注二氧化碳提高采收率影响因素核磁共振实验[J].石油勘探与开发, 2021, 48(3):603-612.
LANG Dongjiang, LUN Zengmin, LV Chengyuan, et al.Nuclear magnetic resonance experimental study of CO₂ injection to enhance shale oil recovery[J].Petroleum Exploration and Development, 2021, 48(3):603-612.
[23] ZHU Ziming, FANG Chao, QIAO Rui, et al.Experimental and molecular insights on mitigation of hydrocarbon sieving in Niobrara shale by CO₂ huff 'n’ puff[J].SPE Journal, 2020, 25(4):1803-1811.
[24] ZHANG Yi, YUAN Lei, LIU Shizhan, et al.Molecular dynamics simulation of bubble nucleation and growth during CO₂ Huff-n-Puff process in a CO₂-heavy oil system[J].Geoenergy Science and Engineering, 2023, 227:211852.
[25] SUN H.COMPASS:an ab initio force-field optimized for condensed-phase applications-overview with details on alkane and benzene compounds[J].The Journal of Physical Chemistry B, 1998, 102(38):7338-7364.

低渗-致密油藏注气吞吐CO₂—原油相互作用与传质规律

Law of interaction and mass transfer of CO₂ and crude oil during gas injection huff and puff in low permeability tight reservoirs

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	李杰训, 许云飞, 王志华. 剪切流场中油-水界面成膜的影响因素及微观机制[J]. 石油学报, 2024, 45(8): 1244-1256.
[2]	左罗, 张世昆, 沈子齐, 许国庆, 曾星航, 刘学鹏, 周朝, 杜娟. 页岩油储层压裂液渗吸作用机理[J]. 石油学报, 2024, 45(11): 1652-1661.
[3]	鹿腾, 李兆敏, 顾子涵, 穆金峰, 丁国, 王一平, 杜华君. 超深层稠油降黏泡沫体系微观作用机理及其矿场应用[J]. 石油学报, 2023, 44(8): 1344-1355.
[4]	王顺, 王敬, 刘慧卿, 姬泽敏, 胡改星. 表面活性剂辅助残余油剥离机制的分子模拟[J]. 石油学报, 2023, 44(3): 518-533.
[5]	史晓东, 孙灵辉, 战剑飞, 李斌会, 韩雪, 陆慧敏, 蒋成刚. 松辽盆地北部致密油水平井二氧化碳吞吐技术及其应用[J]. 石油学报, 2022, 43(7): 998-1006.
[6]	金国文, 王堂宇, 刘忠华, 谢然红, 邵亮, 李博宇. 基于核磁共振测井的砂砾岩储层分类与产能预测方法[J]. 石油学报, 2022, 43(5): 648-657.
[7]	朱秀川, 胡钦红, 蒙冕模, 张军建, 张涛, 尹娜, 孙小惠, 晁静, 杜玉山, 刘惠民. 页岩储层渗吸过程中水的微观分布及其气测渗透率动态响应特征[J]. 石油学报, 2022, 43(4): 533-547.
[8]	黄兴, 窦亮彬, 左雄娣, 高辉, 李天太. 致密油藏裂缝动态渗吸排驱规律[J]. 石油学报, 2021, 42(7): 924-935.
[9]	黄兴, 倪军, 李响, 薛俊杰, 柏明星, 周彤. 致密油藏不同微观孔隙结构储层CO₂驱动用特征及影响因素[J]. 石油学报, 2020, 41(7): 853-864.
[10]	任俊豪, 任晓海, 宋海强, 韩登林, 王晨晨, 盛广龙, 吕伟峰. 基于分子模拟的纳米孔内甲烷吸附与扩散特征[J]. 石油学报, 2020, 41(11): 1366-1375.
[11]	赵建斌, 黄显华, 刘晓燕, 李振林, 田扬, 丁伟, 刘玲莉. 二连盆地乌兰花凹陷特低渗安山岩储层的有效性评价[J]. 石油学报, 2020, 41(10): 1188-1196.
[12]	张磊, 乔向阳, 张亮, 吴克柳, 周伟, 白慧芳, 辛翠平, 王涛. 鄂尔多斯盆地旬邑探区延长组储层特征和开发效果[J]. 石油学报, 2020, 41(1): 88-95.
[13]	黄兴, 李天太, 王香增, 高辉, 倪军, 赵金省, 王琛. 致密砂岩储层可动流体分布特征及影响因素——以鄂尔多斯盆地姬塬油田延长组长8油层组为例[J]. 石油学报, 2019, 40(5): 557-567.
[14]	苏俊霖, 董汶鑫, 罗平亚, 徐显广, 黄进军. 基于低场核磁共振技术的黏土表面水化水定量测试与分析[J]. 石油学报, 2019, 40(4): 468-474.
[15]	蒋裕强, 刘雄伟, 付永红, 陈虎, 张海杰, 燕军, 陈超, 谷一凡. 渝西地区海相页岩储层孔隙有效性评价[J]. 石油学报, 2019, 40(10): 1233-1243.