石油勘探与开发 >

2021 , Vol. 48 >Issue 4: 817 - 824

DOI: https://doi.org/10.11698/PED.2021.04.14

油气田开发

致密油二氧化碳吞吐动态特征及影响因素

  • 汤翔 ,
  • 李宜强 ,
  • 韩雪 ,
  • 周永炳 ,
  • 战剑飞 ,
  • 徐苗苗 ,
  • 周锐 ,
  • 崔凯 ,
  • 陈小龙 ,
  • 王雷
展开
  • 1.油气资源与探测国家重点实验室（中国石油大学（北京））,北京 102249;
    2.中国石油大学（北京）石油工程学院,北京 102249;
    3.大庆油田有限责任公司勘探开发研究院,大庆 163712;
    4.中国石油南方石油勘探开发有限责任公司勘探开发处,海口 570100;
    5.中石油煤层气有限责任公司,北京 100028
汤翔（1990-）,男,江苏淮安人,中国石油大学（北京）在读博士研究生,主要从事低渗—致密储集层高效开发方面的研究工作。地址：北京市昌平区府学路18号,中国石油大学（北京）石油工程学院,邮政编码：102249。E-mail: tangxiang172@163.com

收稿日期: 2020-12-17

  修回日期: 2021-06-01

  网络出版日期: 2021-07-23

基金资助

国家科技重大专项“松辽盆地致密油开发示范工程”（2017ZX05071）

收起

Dynamic characteristics and influencing factors of CO2 huff and puff in tight oil reservoirs

  • TANG Xiang ,
  • LI Yiqiang ,
  • HAN Xue ,
  • ZHOU Yongbing ,
  • ZHAN Jianfei ,
  • XU Miaomiao ,
  • ZHOU Rui ,
  • CUI Kai ,
  • CHEN Xiaolong ,
  • WANG Lei
Expand
  • 1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China;
    2. Petroleum Engineering Institute, China University of Petroleum (Beijing), Beijing 102249, China;
    3. Exploration and Development Research Institute of Daqing Oilfield Co Ltd, Daqing 163712, China;
    4. Exploration and Development Department, China Southern Petroleum Exploration and Development Corporation, PetroChina, Haikou 570100, China;
    5. PetroChina Coalbed Methane Company Limited, Beijing 100028, China

Received date: 2020-12-17

  Revised date: 2021-06-01

  Online published: 2021-07-23

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摘要

采用大型露头方形岩心与长岩心,开展了不同注采参数、不同焖井时间等多种注采方式下的CO2吞吐实验,分析了CO2吞吐的动态特征、影响因素及波及方式对采收率的贡献。研究表明：CO2吞吐开发可分为CO2返排、产气携油、高速产油、产油速率减缓4个阶段。产气携油阶段以游离气驱为主,高速产油阶段以溶解气驱为主;CO2注入量与开采速度是影响吞吐效果的主要因素,CO2注入量越大,开采速度越低,采收率越高,合理的CO2注入量与开采速度需结合现场需求及经济评价确定;CO2吞吐开发存在合理焖井时间,超过该时间继续焖井对提高采收率贡献不大,现场应用中,可通过井底压力是否稳定判断焖井是否充分。CO2吞吐开发采收率的贡献主要来源于流动波及与扩散波及,焖井时间足够长时,采收率的贡献主要来源于扩散波及。 图16 表2 参36

关键词： 致密油; CO2吞吐; 动态特征; 采收率; 影响因素; 驱油机理

本文引用格式

汤翔 , 李宜强 , 韩雪 , 周永炳 , 战剑飞 , 徐苗苗 , 周锐 , 崔凯 , 陈小龙 , 王雷 . 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 . DOI: 10.11698/PED.2021.04.14

Abstract

CO2 huff and puff experiments of different injection parameters, production parameters and soaking time were carried out on large-scale cubic and long columnar outcrop samples to analyze dynamic characteristics and influencing factors of CO2 huff and puff and the contribution of sweeping mode to recovery. The experimental results show that the development process of CO2 huff and puff can be divided into four stages, namely, CO2 backflow, production of gas with some oil, high-speed oil production, and oil production rate decline stages. The production of gas with some oil stage is dominated by free gas displacement, and the high-speed oil production stage is dominated by dissolved gas displacement. CO2 injection volume and development speed are the major factors affecting the oil recovery. The larger the injected CO2 volume and the lower the development speed, the higher the oil recovery will be. The reasonable CO2 injection volume and development speed should be worked out according to oilfield demand and economic evaluation. There is a reasonable soaking time in CO2 huff and puff. Longer soaking time than the optimum time makes little contribution to oil recovery. In field applications, the stability of bottom hole pressure is important to judge whether the soaking time is sufficient during the huff period. The oil recovery of CO2 huff and puff mainly comes from the contribution of flow sweep and diffusion sweep, and diffusion sweep contributes more to the oil recovery when the soaking time is sufficient.

Key words： tight oil; CO2 huff and puff; dynamic characteristics; oil recovery; influencing factors; oil-displacement mechanism

参考文献

[1] 郑民, 李建忠, 吴晓智, 等. 我国主要含油气盆地油气资源潜力及未来重点勘探领域[J]. 地球科学, 2019, 44(3): 833-847.
ZHENG Min, LI Jianzhong, WU Xiaozhi, et al. Potential of oil and natural gas resources of main hydrocarbon-bearing basins and key exploration fields in China[J]. Earth Science, 2019, 44(3): 833-847.
[2] 邹才能, 张国生, 杨智, 等. 非常规油气概念、特征、潜力及技术: 兼论非常规油气地质学[J]. 石油勘探与开发, 2013, 40(4): 385-399.
ZOU Caineng, ZHANG Guosheng, YANG Zhi, et al. Geological concepts, characteristics, resource potential and key techniques of unconventional hydrocarbon: On unconventional petroleum geology[J]. Petroleum Exploration and Development, 2013, 40(4): 385-399.
[3] 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): 343-350.
JIA 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.
[4] 彭颖锋, 李宜强, 张威, 等. 龙西地区扶余油层致密砂岩矿物特征及其对开发效果的影响[J]. 大庆石油地质与开发, 2021, 40(1): 162-174.
PENG Yingfeng, LI Yiqiang, ZHANG Wei, et al. Mineral characteristics of tight sandstone in Fuyu reservoir of Longxi area and its influence on development effect[J]. Petroleum Geology & Oilfield Development in Daqing, 2021, 40(1): 162-174.
[5] 赵政璋, 杜金虎. 致密油气[M]. 北京: 石油工业出版社, 2012.
ZHAO Zhengzhang, DU Jinhu. Tight oil and gas[M]. Beijing: Petroleum Industry Press, 2012.
[6] 郭永奇, 铁成军. 巴肯致密油特征研究及对我国致密油勘探开发的启示[J]. 辽宁化工, 2013, 42(3): 309-312, 317.
GUO Yongqi, TIE Chengjun. Study on characteristics of Bakken tight oil and its revelation for exploration and development of tight oil in China[J]. Liaoning Chemical Industry, 2013, 42(3): 309-312, 317.
[7] 王宁, 高东, 文斌, 等. 致密储集层开发特征及开发技术分析[J]. 石油化工应用, 2016, 35(3): 15-18.
WANG Ning, GAO Dong, WEN Bin, et al. Development characteristic and technique analysis of tight oil reservoir[J]. Petrochemical Industry Application, 2016, 35(3): 15-18.
[8] 于馥玮, 苏航. 中国致密油特征与开发思路探索[J]. 当代化工, 2015, 44(7): 1550-1552.
YU Fuwei, SU Hang. Characteristics and development technique research of tight oil in China[J]. Contemporary Chemical Industry, 2015, 44(7): 1550-1552.
[9] CUI G, PEI S, RUI Z, et al. Whole process analysis of geothermal exploitation and power generation from a depleted high-temperature gas reservoir by recycling CO2[J]. Energy, 2021, 217: 119340.
[10] CUI G, REN S, DOU B, et al. Geothermal energy exploitation from depleted high-temperature gas reservoirs by recycling CO2: The superiority and existing problems[J]. Geoscience Frontiers, 2020, 183: 837-852.
[11] 崔国栋, 张亮, 任韶然, 等. 油藏CO2驱及封存过程中地化反应特征及埋存效率[J]. 中国石油大学学报(自然科学版), 2017, 41(6): 123-131.
CUI Guodong, ZHANG Liang, REN Shaoran, et al. Geochemical reactions and CO2 storage efficiency during CO2 EOR process and subsequent storage[J]. Journal of China University of Petroleum (Natural Science Edition), 2017, 41(6): 123-131.
[12] BACHU S. Identification of oil reservoirs suitable for CO2-EOR and CO2 storage(CCUS) using reserves databases, with application to Alberta, Canada[J]. International Journal of Greenhouse Gas Control, 2016, 44: 152-165.
[13] HASKIN H K, ALSTON R B. An evaluation of CO2 huff-n-puff tests in Texas[J]. Journal of Petroleum Technology, 1989, 41(2): 177-184.
[14] YU W, LASHGARI H, SEPEHRNOORI K.Simulation study of CO2 huff-n-puff process in Bakken tight oil reservoirs[R]. SPE 169575, 2014.
[15] SONG C, YANG D.Performance evaluation of CO2 huff-n-puff processes in tight oil formations[R]. SPE 167217, 2013.
[16] SONG C, YANG D. Experimental and numerical evaluation of CO2 huff-n-puff processes in Bakken formation[J]. Fuel, 2017, 190(15): 145-162.
[17] MONGER T G, COMA J M. A laboratory and field evaluation of the CO2 huff-n-puff process for light-oil recovery[J]. SPE Reservoir Engineering, 2013, 3(4): 1168-1176.
[18] 袁舟, 廖新维, 张快乐, 等. 二氧化碳驱过程中无机盐沉淀对油藏采收率的影响: 以长庆油田长8区块为例[J]. 石油勘探与开发, 2021, 48(2): 379-385.
YUAN Zhou, LIAO Xinwei, ZHANG Kuaile, et al. The effect of inorganic salt precipitation on oil recovery during CO2 flooding: A case study of Chang 8 block in Changqing oilfield, NW China[J]. Petroleum Exploration and Development, 2021, 48(2): 379-385.
[19] 胡永乐, 郝明强, 陈国利, 等. 中国CO2驱油与埋存技术及实践[J]. 石油勘探与开发, 2019, 46(4): 716-727.
HU Yongle, HAO Mingqiang, CHEN Guoli, et al. Technologies and practice of CO2 flooding and sequestration in China[J]. Petroleum Exploration and Development, 2019, 46(4): 716-727.
[20] THOMAS G A, MONGER-MCCLURE T G. Feasibility of cyclic CO2 injection for light-oil recovery[J]. SPE Reservoir Engineering, 1991, 6(2): 179-184.
[21] MONGER T G, RAMOS J C, THOMAS J. Light oil recovery from cyclic CO2 injection: Influence of low pressures impure CO2, and reservoir gas[J]. SPE Reservoir Engineering, 1991, 6(1): 25-32.
[22] HAWTHORNE S B, GORECKI C D, SORENSEN J A, et al.Hydrocarbon mobilization mechanisms from upper, middle, and lower Bakken reservoir rocks exposed to CO2[R]. SPE 167200, 2013.
[23] PU W, WEI B, JIN F, et al. Experimental investigation of CO2 huff-n-puff process for enhancing oil recovery in tight reservoirs[J]. Chemical Engineering Research and Design, 2016, 111: 269-276.
[24] LI L, SU Y, HAO Y, 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.
[25] SHILOV E, CHEREMISIN A, MAKSAKOV K, et al. Huff-n-puff experimental studies of CO2 with heavy oil[J]. Energies, 2019, 12(22): 4308.
[26] 韩伟. 致密油储集层压裂水平井注CO2吞吐效果研究[D]. 北京: 中国石油大学(北京), 2018.
HAN Wei.Research on the effect of CO2 huff and puff of fractured horizontal wells in tight oil reservoirs[D]. Beijing: China University of Petroleum (Beijing), 2018.
[27] 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.
[28] CHEN C, BALHOFF M T, MOHANTY K K. Effect of reservoir heterogeneity on primary recovery and CO2 huff-n-puff recovery in shale-oil reservoirs[J]. SPE Reservoir Evaluation & Engineering, 2014, 17(3): 404-413.
[29] LEE J H, JEONG M S, LEE K S. Incorporation of multi-phase solubility and molecular diffusion in a geochemical evaluation of the CO2 huff-n-puff process in liquid-rich shale reservoirs[J]. Fuel, 2019, 247: 77-86.
[30] PU W F, DU D J, WANG S, et al. Experimental study of CO2 huff-n-puff in a tight conglomerate reservoir using true triaxial stress cell core fracturing and displacement system: A case study[J]. Journal of Petroleum Science and Engineering, 2020, 199: 108298.
[31] MA Q, YANG S, LYU D, et al. Experimental investigation on the influence factors and oil production distribution in different pore sizes during CO2 huff-n-puff in an ultra-high-pressure tight oil reservoir[J]. Journal of Petroleum Science and Engineering, 2019, 178: 1155-1163.
[32] 杨正明, 刘学伟, 张仲宏, 等. 致密储集层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.
[33] WANG X, XIAO P, YANG Z, et al. Laboratory and field-scale parameter optimization of CO2 huff-n-puff with the staged-fracturing horizontal well in tight oil reservoirs[J]. Journal of Petroleum Science and Engineering, 2020, 186: 106703.
[34] POSTON S W, POE B D. Analysis of production decline curves[M]. Richardson: Society of Petroleum Engineers, 2008.
[35] 闫怡. 致密储集层水平井体积压裂产量递减研究[D]. 青岛: 中国石油大学(华东), 2017.
YAN Yi.Production decline analysis on volumetric fractured horizontal wells in tight reservoir[D]. Qingdao: China University of Petroleum(East China), 2017.
[36] HOFFMAN B T, RUTLEDGE J M. Mechanisms for huff-n-puff cyclic gas injection into unconventional reservoirs[R]. Oklahoma: SPE Oklahoma City Oil and Gas Symposium, 2019.
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