超临界CO2压裂裂缝特征研究现状与展望

doi:10.3969/j.issn.1006-6535.2022.02.001

摘要/Abstract

摘要： 为加强对超临界CO₂压裂裂缝特征的认识,指导超临界CO₂压裂技术的发展,总结了前人对超临界CO₂起裂、扩展和导流能力特征的研究。结果表明:超临界CO₂压裂裂缝起裂压力比液态和清水压裂低,其主导原因是超临界CO₂的低黏度和高扩散性使孔隙压力增大起裂压力降低;超临界CO₂压裂裂缝扩展影响因素复杂,主要受CO₂相变、岩石弱面结构等因素主导,但具体机理尚不明确,还需研发实验装置和建立裂缝扩展三维模型进行更微观细致的研究;超临界CO₂压裂裂缝比清水压裂裂缝的粗糙度和迂曲度更大、裂缝缝长更长,但缝宽小,裂缝的有效性不足;超临界CO₂压裂可使天然裂缝和人工裂缝剪切错位,也可进入微裂缝孔隙,破坏岩石矿物胶结,导致岩石矿物脱落形成自支撑,自支撑裂缝提供了导流能力,但形成机理及维持方式还需进一步研究。该研究可为超临界CO₂压裂裂缝特征研究提供参考。

关键词: 超临界CO₂, 压裂, 裂缝特征, 自支撑导流能力

Abstract: Previous studies on the characteristics of supercritical CO₂ fracture initiation, propagation and conductivity were summarized in order to enhance the understanding of the fracture characteristics of supercritical CO₂ fracturing and guide the development of supercritical CO₂ fracturing technology. The results showed that the fracture initiation pressure in supercritical CO₂ fracturing was lower than that of both liquid and water fracturing, which was mainly caused by that the low viscosity and high diffusivity of supercritical CO₂ increased the pore pressure and reduced the fracture initiation pressure; the influencing factors of fracture propagation were complex, mainly dominated by CO₂ phase change, rock weak surface structure and the weak surface structure of the rock, but the specific mechanism was not yet clear, and it was necessary to develop experimental devices and establish a three-dimensional model of fracture propagation for more microscopic and detailed study; compared with water fracturing, the roughness, tortuosity and length of fractures in supercritical CO₂ fracturing were greater, but the fracture width was smaller and the fracture effectiveness was insufficient; in the supercritical CO₂ fracturing, natural and artificial fractures could be sheared in a staggered manner, and CO₂ could enter the micro-fractures and pores to destroy the cementation of rock and minerals, causing rock and minerals to fall off to generated unpropped fractures that were conductive, but a study was required for the formation mechanism and maintenance mode. This study provides a reference for the study of fracture characteristics of supercritical CO₂ fracturing.

Key words: supercritical CO₂, fracturing, fracture characteristics, conductivity of unpropped fracture

中图分类号:

TE357

李小刚, 冉龙海, 杨兆中, 贺宇廷, 廖梓佳, 曹文艳. 超临界CO₂压裂裂缝特征研究现状与展望[J]. 特种油气藏, 2022, 29(2): 1-8.

Li Xiaogang, Ran Longhai, Yang Zhaozhong, He Yuting, Liao Zijia, Cao Wenyan. Current Status and Prospect of Study on Supercritical CO₂ Fracturing Characteristics[J]. Special Oil & Gas Reservoirs, 2022, 29(2): 1-8.

参考文献

[1] 孙可明,吴迪,粟爱国,等.超临界CO₂作用下煤体渗透性与孔隙压力-有效体积应力-温度耦合规律试验研究[J].岩石力学与工程学报,2013,32(增刊2):3760-3767.
SUN Keming,WU Di,SU Aiguo,et al.Coupling experimental study of coal permeability with pore pressure-effective volume stress-temperature under supercritical carbon dioxide action[J].Chinese Journal of Rock Mechanics and Engineering,2013,32(S 2):3760-3767.
[2] WANG H,LI G,SHEN Z.A feasibility analysis on shale gas exploitation with supercritical carbon dioxide[J].Energy Sources,Part A:Recovery,Utilization,and Environmental Effects,2012,34(15):1426-1435.
[3] CHEN L Q,TIAN S C,LI G S,et al.Initiation pressure models for supercritical CO₂ fracturing and sensitivity analysis[J].Rock and Soil Mechanics,2015,36:125-131.
[4] 朱阳升.重庆地区典型页岩的超临界CO₂压裂模拟试验和吸附行为研究[D].上海:上海大学,2016.
ZHU Yangsheng.Supercritical carbon dioxide fracturing and adsorption behavior of typical shales from Chongqing[D].Shanghai:Shanghai University,2016.
[5] BOHLOLI B,DE PATER C J.Experimental study on hydraulic fracturing of soft rocks:influence of fluid rheology and confining stress[J].Journal of Petroleum Science and Engineering,2006,53(1/2):1-12.
[6] 郭建春,何颂根,邓燕.弹塑性地层水力压裂起裂模式及起裂压力研究[J].岩土力学,2015,36(9):2494-2500.
GUO Jianchun,HE Songgen,DENG Yan.Study of hydraulic fracturing initiation mode and initiation pressure of elastoplastic formation[J].Rock and Soil Mechanics,2015,36(9):2494-2500.
[7] 陈立强,田守嶒,李根生,等.超临界CO₂压裂起裂压力模型与参数敏感性研究[J].岩土力学,2015,36(增刊2):125-131.
CHEN Liqiang,TIAN Shouceng,LI Gensheng,et al.Initiation pressure models for supercritical CO₂ fracturing and sensitivity analysis[J].Rock and Soil Mechanics,2015,36(S2):125-131.
[8] 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.
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 & Gas Field,2020,27(6):710-714.
[9] YAN H,ZHANG J X,ZHOU N,et al.Staged numerical simulations of supercritical CO₂ fracturing of coal seams based on the extended finite element method[J].Journal of Natural Gas Science and Engineering,2019,65:275-283.
[10] ISHIDA T,AOYAGI K,NIWA T,et al.Acoustic emission monitoring of hydraulic fracturing laboratory experiment with supercritical and liquid CO₂[J].Geophysical Research Letters,2012,39(16):16309.
[11] ZHANG X W,LU Y Y,TANG J R,et al.Experimental study on fracture initiation and propagation in shale using supercritical carbon dioxide fracturing[J].Fuel,2017,190(15):370-378.
[12] 卢义玉,廖引,汤积仁,等.页岩超临界CO₂压裂起裂压力与裂缝形态试验研究[J].煤炭学报,2018,43(1):175-180.
LU Yiyu,LIAO Yin,TANG Jiren,et al.Experimental study on fracture initiation pressure and morphology in shale using supercritical CO₂ fracturing[J].Journal of China Coal Society,2018,43(1):175-180.
[13] 王海柱,石鲁杰,李根生,等.超临界CO₂岩石致裂机制分析[J].岩土力学,2018,39(10):3589-3596.
WANG Haizhu,SHI Lujie,LI Gensheng,et al.Analysis of mechanisms of supercritical CO₂ fracturing[J].Rock and Soil Mechanics,2018,39(10):3589-3596.
[14] CHEN H,HU Y,KANG Y,et al.Fracture initiation and propagation under different perforation orientation angles in supercritical CO₂ fracturing[J].Journal of Petroleum Science and Engineering,2019,183(7):106-403.
[15] YAN H,ZHANG J X,LI B Y,et al.Crack propagation patterns and factors controlling complex crack network formation in coal bodies during tri-axial supercritical carbon dioxide fracturing[J].Fuel,2021,286(1):119-381.
[16] KIZAKI A,TANAKA H,OHASHI K,et al.Hydraulic fracturing in Inada granite and ogino tuff with super critical carbon dioxide[C] //International Society for Rock Mechanics and Rock Engineering.ISRM Regional Symposium-7th Asian Rock Mechanics Symposium.Seoul:International Society for Rock Mechanics and Rock Engineering,2012:1026-1033.
[17] HU Y,LIU F,HU Y Q,et al.Propagation characteristics of supercritical carbon dioxide induced fractures under true tri-axial stresses[J].Energies,2019,12(22):4229.
[18] 杨帆.二氧化碳复合压裂裂缝扩展规律研究[D].北京:中国石油大学(北京),2019.
YANG Fan.Research on fracture propagation law of carbon dioxide composite fracturing[D].Beijing:China University of Petroleum(Beijing),2019.
[19] ZHOU D W,ZHANG G Q,ZHAO P Y,et al.Effects of post-instability induced by supercritical CO₂ phase change on fracture dynamic propagation[J].Journal of Petroleum Science and Engineering,2018,162:358-366.
[20] 赵志恒.页岩超临界二氧化碳和水力压裂裂缝扩展特征[D].北京:中国科学院大学,2018.
ZHAO Zhiheng.Fracture propagation characteristics of shale supercritical carbon dioxide and hydraulic fracturing[D].Beijing:University of Chinese Academy of Sciences,2018.
[21] 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.Study on supercritical carbon dioxide fracturing fracture propagation in tight sandstone reservoirs[D].Beijing:China University of Petroleum(Beijing),2018.
[22] 于慧,王昕,崔振东,等. 二氧化碳注入砂岩透镜体中裂缝扩展模拟[J].工程地质学报,2019,27(2):239-249.
YU Hui,WANG Xin,CUI Zhendong,et al.Simulation of fracture propagation during carbon dioxide injection into sandstone lens[J].Journal of Engineering Geology,2019,27(2):239-249.
[23] 贺宇廷.考虑流固热耦合的二氧化碳压裂裂缝三维延伸模型研究[D].成都:西南石油大学,2019.
HE Yuting.Three dimensional fracture propagation simulation coupled with thermal-hydro-mechanical processes for carbon dioxide fracturing[D].Chengdu:Southwest Petroleum University,2019.
[24] 贾云中.超临界二氧化碳压裂页岩自支撑裂缝形成机理及渗透性——稳定性研究[D].重庆:重庆大学,2018.
JIA Yunzhong.Self-supporting fracture induced by supercritical carbon dioxide fracturing and its permeability-stability characteristics[D].Chongqing:Chongqing University,2018.
[25] JIA Y Z,LU Y Y,ELSWORTH D,et al.Surface characteristics and permeability enhancement of shale fractures due to water and supercritical carbon dioxide fracturing[J].Journal of Petroleum Science and Engineering,2018,165:284-297.
[26] ZHAO Z H,LI X,HE J M,et al.A laboratory investigation of fracture propagation induced by supercritical carbon dioxide fracturing in continental shale with interbeds[J].Journal of Petroleum Science and Engineering,2018,166:739-746.
[27] 王磊.超临界CO₂/清水压裂起裂及裂缝扩展试验研究[D].太原:太原理工大学,2018.
WANG Lei. Experimental study on fracturing initiation and fracture propagation of supercritical CO₂/water fracturing[D].Taiyuan:Taiyuan University of Technology,2018.
[28] HE Y T,YANG Z Z,JIANG Y F,et al.A full three-dimensional fracture propagation model for supercritical carbon dioxide fracturing[J].Energy Science & Engineering,2020,8(8):2894-2906.
[29] ZHANG C P,CHENG P,RANJITH P G,et al.A comparative study of fracture surface roughness and flow characteristics between CO₂ and water fracturing[J].Journal of Natural Gas Science and Engineering,2020,76:103-188.
[30] 苏建政,李凤霞,周彤.页岩储层超临界二氧化碳压裂裂缝形态研究[J].石油与天然气地质,2019,40(3):616-625.
SU Jianzheng,LI Fengxia,ZHOU Tong.Hydraulic fracture propagation behaviors and geometry under supercritical CO₂ fracturing in shale reservoirs[J].Oil & Gas Geology,2019,40(3):616-625.
[31] 敖翔.超临界CO₂作用下页岩变形及CO₂运移规律研究[D].重庆:重庆大学,2017.
AO Xiang.Study on shale deformation and CO₂ migration law under the action of supercritical CO₂[D].Chongqing:Chongqing University,2017.
[32] WANG H Z,WANG M,YANG B,et al.Numerical study of supercritical CO₂ and proppant transport in different geometrical fractures[J].Greenhouse Gases(Science and Technology),2018,8(5):898-910.
[33] FREDD C N,MCCONNELL S B,BONEY C L,et al.Experimental study of fracture conductivity for water-fracturing and conventional fracturing applications[J].SPE Journal,2001,6(3):288-298.
[34] 曹海涛,詹国卫,赵勇,等.川南深层页岩气藏支撑与自支撑裂缝导流能力对比[J].科学技术与工程,2019,19(33):164-169.
CAO Haitao,ZHAN Guowei,ZHAO Yong,et al.Comparative of conductivity between support fracture and self-support fracture of deep shale reservoir in southern Sichuan Basin[J].Science Technology and Engineering,2019,19(33):164-169.
[35] WU W W,KAKKAR P,ZHOU J H,et al.An experimental investigation of the conductivity of unpropped fractures in shales[C].SPE184858-MS,2017:1-20.
[36] ZHANG J J,KAMENOV A,ZHU D,et al.Laboratory measurement of hydraulic fracture conductivities in the Barnett shale[C].SPE163839-PA,2013:216-227.
[37] 周雷力,何颂根,陈迟.川南深层页岩压裂裂缝导流能力测试技术[J].油气井测试,2020,29(3):38-44.
ZHOU Leili,HE Songgen,CHEN Chi.Measurement of the conductivity of induced fractures in the deep shale in southern Sichuan basin[J].Well Testing,2020,29(3):38-44.
[38] 张然.裂缝性致密油储层压裂裂缝扩展与支撑机理研究[D].北京:中国石油大学(北京),2017.
ZHANG Ran.Fractures propagation and propping mechanism in fractured tight oil reservoir[D].Beijing:China University of Petroleum(Beijing),2017.
[39] 修乃岭,严玉忠,胥云,等.基于非达西流动的自支撑剪切裂缝导流能力实验研究[J].岩土力学,2019,40(增刊):135-142.
XIU Nailing,YAN Yuzhong,XU Yun,et al.Experimental study on conductivity of self-supporting shear fractures based on non-Darcy flow[J].Rock and Soil Mechanics,2019,40(S):135-142.
[40] WANG J,SUN B,WANG Z,et al.Study on filtration patterns of supercritical CO₂ fracturing in unconventional natural gas reservoirs[J].Greenhouse Gases(Science and Technology),2017,7(6):1126-1140.
[41] LI S,ZHANG D.How effective is carbon dioxide as an alternative fracturing fluid?[J].SPE Journal,2019,24(2):857-876.
[42] 周明,廖茂,韩宏昌,等.页岩气低伤害超临界CO₂凝胶压裂液研究[J]. 西南石油大学学报(自然科学版),2019,41(6):100-105.
ZHOU Ming,LIAO Mao,HAN Hongchang,et al.Low damage supercritical CO₂ gel fracturing fluid for shale gas[J].Journal of Southwest Petroleum University(Science & Technology Edition),2019,41(6):100-105.
[43] ISAKA B A,RANJITH P G.Investigation of temperature-and pressure-dependent flow characteristics of supercritical carbon dioxide-induced fractures in Harcourt granite: application to CO₂-based enhanced geothermal systems[J].International Journal of Heat and Mass Transfer,2020,158:119-931.
[44] HE Y,YANG Z,LI X,et al.Numerical simulation study on three-dimensional fracture propagation of synchronous fracturing[J].Energy Science & Engineering,2020,8(4):944-958.
[45] ZHOU D W,ZHANG G Q,PRASAD M,et al.The effects of temperature on supercritical CO₂ induced fracture:an experimental study[J].Fuel,2019,247(1):126-134.
[46] LI X G,HE Y T,HUO M,et al.Model for calculating the temperature and pressure within the fracture during supercritical carbon dioxide fracturing[J].International Journal of Hydrogen Energy,2020,45(15):8369-8384.

超临界CO₂压裂裂缝特征研究现状与展望

Current Status and Prospect of Study on Supercritical CO₂ Fracturing Characteristics

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]	殷洪川, 胥良君, 吕泽宇, 庞进, 唐雯, 陈渝页. 页岩气井临界出砂产量预测方法[J]. 特种油气藏, 2023, 30(6): 135-140.
[2]	孟胡, 申颍浩, 朱万雨, 李小军, 雷德荣, 葛洪魁. 四川盆地昭通页岩气水平井水力压裂套管外载分析[J]. 特种油气藏, 2023, 30(5): 166-174.
[3]	宋保建, 李景全, 孙宜丽, 张薇, 刘鹏. 致密油藏CO₂吞吐参数优化数值模拟研究[J]. 特种油气藏, 2023, 30(4): 113-121.
[4]	赵佳乐, 李亭, 王刚, 杨琦, 何美琪, 吴清苗, 李少明. 压裂支撑剂在水平井井筒射孔簇间分布实验[J]. 特种油气藏, 2023, 30(4): 169-174.
[5]	杨兆中, 彭擎东, 王振普, 李小刚, 朱静怡, 秦杨. 微胶囊固体酸酸化压裂技术应用及展望[J]. 特种油气藏, 2023, 30(3): 1-8.
[6]	李亮, 赵志红, 杨琦, 杨帆, 王鹏, 刘永兵. 层理页岩脆性破裂模式力学机理研究[J]. 特种油气藏, 2023, 30(3): 123-130.
[7]	肖杭州. CL区块登娄库组致密砂岩气藏压裂液体系适应性评价[J]. 特种油气藏, 2023, 30(3): 143-147.
[8]	李杰, 马明伟, 杨升峰, 王松, 李蕴哲, 徐鹏, 李佶晔. 致密砾岩油藏地层亏空区新井压裂参数优化设计[J]. 特种油气藏, 2023, 30(3): 168-174.
[9]	任岚, 于志豪, 赵金洲, 林然, 吴建发, 宋毅, 吴建军. 深层页岩气断层属性对压裂缝网的影响[J]. 特种油气藏, 2023, 30(2): 95-100.
[10]	陈禹欣, 赵婷, 承宁, 马俊修, 杨升峰, 李蕴哲. 玛湖地区致密砾岩油藏小井距水平井立体井网开发研究与应用[J]. 特种油气藏, 2023, 30(2): 122-127.
[11]	范宇恒, 周丰, 蒋廷学, 张士诚, 白森, 张晓锋, 杨泉, 余维初. 页岩气环保变黏压裂液的研究与应用[J]. 特种油气藏, 2023, 30(2): 147-152.
[12]	张永飞, 李育, 张敏, 刘海峰, 陈虎, 史胜龙, 解宏超, 高源. 非放射性微量金属物质示踪剂研制及应用[J]. 特种油气藏, 2023, 30(2): 153-160.
[13]	李鹏飞. 四川盆地页岩气立体开发缝控压裂技术应用[J]. 特种油气藏, 2023, 30(2): 168-174.
[14]	王宇, 翟成, 邵昊, 唐伟, 石克龙. 循环冲击载荷作用下页岩孔隙结构演化特征[J]. 特种油气藏, 2023, 30(1): 154-160.
[15]	申婷婷. 浅层超稠油水平井微压裂扩容技术及应用[J]. 特种油气藏, 2022, 29(6): 111-118.