Current Status and Prospect of Study on Supercritical CO2 Fracturing Characteristics

doi:10.3969/j.issn.1006-6535.2022.02.001

Abstract

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

CLC Number:

TE357

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.

References

[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.

Current Status and Prospect of Study on Supercritical CO₂ Fracturing Characteristics

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