超临界二氧化碳压裂井筒温压及相态控制研究

doi:10.11885/j.issn.1674-5086.2021.05.13.01

西南石油大学学报(自然科学版) ›› 2023, Vol. 45 ›› Issue (2): 117-125.DOI: 10.11885/j.issn.1674-5086.2021.05.13.01

超临界二氧化碳压裂井筒温压及相态控制研究

吴林¹, 罗志锋¹, 赵立强¹, 姚志广², 贾宇成²

1. 油气藏地质及开发工程国家重点实验室·西南石油大学, 四川成都 610500;
2. 中国石油西南油气田分公司, 四川成都 610051

收稿日期:2021-05-13 发布日期:2023-05-05
通讯作者: 罗志锋,E-mail:lzf103429@163.com
作者简介:吴林，1996年生，男，汉族，四川南充人，博士研究生，主要从事超临界二氧化碳压裂及二氧化碳地质封存方面的研究工作。E-mail：sgywlin@163.com
罗志锋，1981年生，男，汉族，四川南充人，教授，博士研究生导师，主要从事酸化压裂增产技术和采油气工程方面的教学与科研工作。E-mail：lzf103429@163.com
赵立强，1957年生，男，汉族，四川泸州人，教授，博士研究生导师，主要从事酸化压裂增产技术和采油气工程方面的教学与科研工作。E-mail：zhaoliqiangswpu@163.com
姚志广，1996年生，男，汉族，四川广安人，助理工程师，主要从事页岩储层改造工艺与应用方面的研究。E-mail：907508452@qq.com
贾宇成，1996年生，男，汉族，四川南充人，助理工程师，主要从事致密砂岩、碳酸盐岩储层改造工艺与应用方面的研究。E-mail：1119008639@qq.com
基金资助:
国家自然科学基金面上项目(51974264)

Study on Wellbore Temperature & Pressure and Phase Control in Supercritical Carbon Dioxide Fracturing

WU Lin¹, LUO Zhifeng¹, ZHAO Liqiang¹, YAO Zhiguang², JIA Yucheng²

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. Southwest Oil & Gas Field Company, PetroChina, Chengdu, Sichuan 610051, China

Received:2021-05-13 Published:2023-05-05

摘要/Abstract

摘要： 超临界二氧化碳压裂液对温度、压力较为敏感，准确地预测注入过程中的井筒温压及相态直接影响着最终的压裂效果。因此，建立了考虑轴向导热、焦汤效应、膨胀(压缩)做功、摩擦生热热量分配的超临界二氧化碳压裂井筒瞬态温压模型，模拟分析了注入温度、施工排量、降阻效果、油管尺寸对井筒温压及相态的影响。研究结果表明，井筒温度降低导致的二氧化碳密度增加、流速降低，使得井口压力随井底温度同步降低。注入温度越高、施工排量越小、降阻率越高、油管尺寸越大，井底温度越高、井口压力越低。其中，井口温度增加10℃，井底温度增加约为7℃；降阻率提高20%，井口压力降低约7 MPa。提高注入温度及流动通道的横截面积、降排量的同时使用稠化剂(降阻剂)可促使二氧化碳在井底达到超临界态。研究成果对超临界二氧化碳压裂的优化设计及现场应用具有较强的指导意义。

关键词: 超临界二氧化碳, 压裂, 井筒, 瞬态温度压力, 相态控制

Abstract: Supercritical carbon dioxide fracturing fluid is sensitive to temperature and pressure, and accurate prediction of wellbore temperature, pressure and phase state during fracturing directly affects the final fracturing effect. As a result, a transient wellbore temperature and pressure model of supercritical carbon dioxide fracturing considering axial heat conduction, Joule-Thomson effect, expansion/compression work, and frictional heat was established. Based on the model, the effects of injection temperature, displacement, drag reduction effect, and tubing size on the wellbore temperature, pressure and phase state were analyzed. The results show that the decrease of wellbore temperature leads to an increase in carbon dioxide density and a decrease in flow velocity, which causes the wellhead pressure to decrease simultaneously with the wellbore temperature. The higher the injection temperature, the smaller the displacement, the higher the resistance reduction rate, the larger the tubing size, the higher the bottom hole temperature, and the lower the wellhead pressure. Among them, the wellhead temperature increases by 10℃, and the bottom hole temperature increases by about 7℃; the resistance reduction rate increases by 20%, and the wellhead pressure decreases by about 7MPa. Increasing the injection temperature, the cross-sectional area of the flow channel, and reducing the displacement while using the thickener/resistance reducer can promote the carbon dioxide to reach the supercritical state at the bottom of the well. This article has strong guiding significance for the optimization design and field application of supercritical carbon dioxide fracturing.

Key words: supercritical carbon dioxide, fracturing, wellbore, transient temperature and pressure, phase state control

中图分类号:

TE357.2

吴林, 罗志锋, 赵立强, 姚志广, 贾宇成. 超临界二氧化碳压裂井筒温压及相态控制研究[J]. 西南石油大学学报(自然科学版), 2023, 45(2): 117-125.

WU Lin, LUO Zhifeng, ZHAO Liqiang, YAO Zhiguang, JIA Yucheng. Study on Wellbore Temperature & Pressure and Phase Control in Supercritical Carbon Dioxide Fracturing[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2023, 45(2): 117-125.

0
/ / 推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://journal15.magtechjournal.com/Jwk_xnzk/CN/10.11885/j.issn.1674-5086.2021.05.13.01

http://journal15.magtechjournal.com/Jwk_xnzk/CN/Y2023/V45/I2/117

参考文献

[1] 仲冠宇,左罗,蒋廷学,等.页岩气井超临界二氧化碳压裂起裂压力预测[J].断块油气田,2020,27(6):710-714. doi:10.6056/dkyqt202006007 ZHONG Guanyu, ZUO Luo, JIANG Tingxue, et al. Fracture initiation pressure prediction for shale gas well fracturing with super-critical carbon dioxide[J]. Fault-Block Oil and Gas Field, 2020, 27(6):710-714. doi:10.6056/dkyqt202006007
[2] 孙宝江,王金堂,孙文超,等.非常规天然气储层超临界CO$_2$压裂技术基础研究进展[J].中国石油大学学报(自然科学版),2019,43(5):82-91. doi:10.3969/j.issn.1673-5005.2019.05.009 SUN Baojiang, WANG Jintang, SUN Wenchao, et al. Advances in fundamental research of supercritical CO$_2$fracturing technology for unconventional natural gas reservoirs[J]. Journal of China University of Petroleum, 2019, 43(5):82-91. doi:10.3969/j.issn.1673-5005.2019.05.009
[3] WANG Jintang, WANG Zhiyuan, SUN Baojiang, et al. Optimization design of hydraulic parameters for supercritical CO$_2$fracturing in unconventional gas reservoir[J]. Fuel, 2019, 235:795-809. doi:10.1016/j.fuel.2018.08.078
[4] LUO Zhifeng, WU Lin, ZHAO Liqiang, et al. Numerical study on filtration law of supercritical carbon dioxide fracturing in shale gas reservoirs[J]. Greenhouse Gases:Science and Technology, 2021, 11(5):871-886. doi:10.1002/ghg.2097
[5] FANG Huihuang, SANG Shuxun, LIU Shiqi, et al. Experimental simulation of replacing and displacing CH$_4$by injecting supercritical CO$_2$and its geological significance[J]. International Journal of Greenhouse Gas Control, 2019, 81:115-125. doi:10.1016/j.ijggc.2018.12.015
[6] CAI Can, KANG Yong, WANG Xiaochuan, et al. Experimental study on shale fracturing enhancement by using multi-times pulse supercritical carbon dioxide (SC-CO$_2$) jet[J]. Journal of Petroleum Science and Engineering, 2019, 178:948-963. doi:10.1016/j.petrol.2019.04.009
[7] 郭建春,曾冀.超临界二氧化碳压裂井筒非稳态温度-压力耦合模型[J].石油学报,2015,36(2):203-209. doi:10.7623/syxb201502009 GUO Jianchun, ZENG Ji. A coupling model for wellbore transient temperature and pressure of fracturing with supercritical carbon dioxide[J]. Acta Petrolei Sinica, 2015, 36(2):203-209. doi:10.7623/syxb201502009
[8] SONG Weiqiang, NI Hongjian, WANG Ruihe, et al. Pressure transmission in the tubing of supercritical carbon dioxide fracturing[J]. Journal of CO$_2$Utilization, 2017, 21:467-472. doi:10.1016/j.jcou.2017.08.012
[9] YI Liangping, LI Xiaogang, YANG Zhaozhong, et al. Coupled calculation model for transient temperature and pressure of carbon dioxide injection well[J]. International Journal of Heat and Mass Transfer, 2018, 121:680-690. doi:10.1016/j.ijheatmasstransfer.2018.01.036
[10] LYU Xinrun, ZHANG Shicheng, MA Xinfang, et al. Numerical investigation of wellbore temperature and pressure fields in CO$_2$fracturing[J]. Applied Thermal Engineering, 2018, 132:760-768. doi:10.1016/j.applthermaleng.2017.12.095
[11] GONG Q, XU Z G, WANG M Q, et al. Numerical investigation on wellbore temperature and pressure during carbon dioxide fracturing[J]. Applied Thermal Engineering, 2019, 157:113675. doi:10.1016/j.applthermaleng.2019.04.085
[12] WU Lin, LUO Zhifeng, ZHAO Liqiang, et al. Transient temperature-pressure field model of supercritical CO$_2$fracturing wellbore with tubing and annulus co-injection[J]. Greenhouse Gases:Science and Technology, 2022, 12(1):85-102. doi:10.1002/ghg.2124
[13] 程宇雄,李根生,王海柱,等.超临界二氧化碳喷射压裂井筒流体相态控制[J].石油学报,2014,35(6):1182-1187. doi:10.7623/syxb201406016 CHENG Yuxiong, LI Gensheng, WANG Haizhu, et al. Phase control of wellbore fluid during supercritical CO$_2$jet fracturing[J]. Acta Petrolei Sinica, 2014, 35(6):1182-1187. doi:10.7623/syxb201406016
[14] 王金堂.裂缝内超临界二氧化碳与支撑剂两相流动规律研究[D].青岛:中国石油大学(华东),2018. WANG Jintang. Study on two-phase flow of supercritical carbon dioxide and proppants in fractures[D]. Qingdao:China University of Petroleum, 2018.
[15] 李园园.二氧化碳注入井筒内相态分析[D].大庆:东北石油大学,2019. LI Yuanyuan. Phase analysis in CO$_2$injection well[D]. Daqing:Northeast Petroleum University, 2019.
[16] 吴春方,窦亮彬,刘建坤. CO$_2$干法压裂井筒压力与相态控制研究[J].石油机械,2019,47(7):71-79. doi:doi:10.16082/j.cnki.issn.1001-4578.2019.07.011 WU Chunfang, DOU Liangbin, LIU Jiankun. Study on wellbore pressure and phase control for CO$_2$fracturing[J]. China Petroleum Machinery, 2019, 47(7):71-79. doi:10.16082/j.cnki.issn.1001-4578.2019.07.011
[17] 王迪.致密砂岩储层超临界二氧化碳压裂裂缝扩展研究[D].北京:中国石油大学(北京),2018. WANG Di. Research on fracture propagation driven by supercritical carbon dioxide in tight sandstone reservoir[D]. Beijing:China University of Petroleum, 2018.
[18] SPAN R, WAGNER W. A new equation of state for carbon dioxide covering the fluid region from the triple-point temperature to 1100 K at pressures up to 800 MPa[J]. Journal of Physical&Chemical Reference Data, 1996, 25(6):1509-1596. doi:10.1063/1.555991
[19] FENGHOUR A, WAKEHAM W A, VESOVIC V. The viscosity of carbon dioxide[J]. Journal of Physical&Chemical Reference Data, 1998, 27(1):31-44. doi:10.1063/1.556013
[20] VESOVIC V, WAKEHAM W A, OLCHOWY G A, et al. The transport properties of carbon dioxide[J]. Journal of Physical&Chemical Reference Data, 1990, 19(3):763-808. doi:10.1063/1.555875
[21] DROPKIN D, SOMERSCALES E. Heat transfer by natural convection in liquids confined by two parallel plates which are inclined at various angles with respect to the horizontal[J]. Journal of Heat Transfer, 1965, 87(1):77. doi:10.1115/1.3689057
[22] XIN R, TAO W. Analytical solution for transient heat conduction in two semi-infinite bodies in contact[J]. Journal of Heat Transfer, 1994, 116(1):766-771. doi:10.1115/1.2910860
[23] 李小江,李根生,王海柱,等.超临界CO$_2$压裂井筒流动模型及耦合求解[J].中国石油大学学报(自然科学版),2018,42(2):87-94. doi:10.3969/j.issn.1673-5005.2018.02.010 LI Xiaojiang, LI Gensheng, WANG Haizhu, et al. A wellbore flow model and coupling solution for supercritical CO$_2$fracturing[J]. Journal of China University of Petroleum, 2018, 42(2):87-94. doi:10.3969/j.issn.1673-5005.2018.02.010

超临界二氧化碳压裂井筒温压及相态控制研究

Study on Wellbore Temperature & Pressure and Phase Control in Supercritical Carbon Dioxide Fracturing

RichHTML

PDF (PC)

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]	王强, 赵金洲, 胡永全, 赵超能, 傅成浩. 页岩水力裂缝网络形态及激活机制研究[J]. 西南石油大学学报(自然科学版), 2022, 44(6): 71-86.
[2]	左罗, 仲冠宇, 蒋廷学, 王海涛. 页岩微观结构及力学特征变化规律研究[J]. 西南石油大学学报(自然科学版), 2022, 44(5): 125-134.
[3]	马先林, 周德胜, 蔡文斌, 李宪文, 何明舫. 基于可解释机器学习的水平井产能预测方法[J]. 西南石油大学学报(自然科学版), 2022, 44(4): 81-90.
[4]	陈迟, 郭建春, 路千里, 慈建发. 致密气藏多尺度支撑机理研究与应用[J]. 西南石油大学学报(自然科学版), 2022, 44(3): 131-138.
[5]	谭佳, 刘殷韬, 潘宝风. 致密砂岩气藏纳米封堵型低伤害压裂液研究[J]. 西南石油大学学报(自然科学版), 2022, 44(3): 139-147.
[6]	李胜富, 李皋, 吴建忠, 李泽. 川西致密砂岩气藏井筒积液储层损害机理研究[J]. 西南石油大学学报(自然科学版), 2022, 44(3): 157-166.
[7]	郭彤楼. 川西侏罗系致密砂岩气藏稳产关键技术与展望[J]. 西南石油大学学报(自然科学版), 2022, 44(3): 1-11.
[8]	吴承美, 许长福, 陈依伟, 谭强, 徐田录. 吉木萨尔页岩油水平井开采实践[J]. 西南石油大学学报(自然科学版), 2021, 43(5): 33-41.
[9]	盛广龙, 黄罗义, 赵辉, 饶翔, 马嘉令. 页岩气藏压裂缝网扩展流动一体化模拟技术[J]. 西南石油大学学报(自然科学版), 2021, 43(5): 84-96.
[10]	张守江, 乔红军, 张永飞, 陈一鸣, 曾凡华. 多翼裂缝垂直井的瞬态压力分析[J]. 西南石油大学学报(自然科学版), 2021, 43(5): 137-146.
[11]	张广清, 赵振峰, 王笑笑. 水平井分段压裂过程对水泥环完整性影响[J]. 西南石油大学学报(自然科学版), 2021, 43(5): 147-154.
[12]	黄中伟, 武晓光, 邹文超, 杨睿月, 谢紫霄. 非常规储层液氮低温致裂理论及研究进展[J]. 西南石油大学学报(自然科学版), 2021, 43(5): 155-165.
[13]	陈学忠, 鲁友常, 吴易一, 马丽丽. 中美页岩气开采压裂返排液处置政策分析及启示[J]. 西南石油大学学报(自然科学版), 2021, 43(5): 212-219.
[14]	赵海燕, 易勇刚, 于会永, 刘振东, 曾德智. 碳酰胺复合驱吞吐井缓蚀剂优选评价[J]. 西南石油大学学报(自然科学版), 2021, 43(4): 138-146.
[15]	尹虎, 赵修文, 李黔, 钟守明, 李维轩. 水平井大规模压裂固井水泥石性能设计方法[J]. 西南石油大学学报(自然科学版), 2021, 43(4): 167-174.