Supercritical CO2-Shale interaction induced natural fracture closure: Implications for scCO2 hydraulic fracturing in shales

被引:67
|
作者
Memon, Shoaib [1 ]
Feng, Runhua [1 ]
Ali, Muhammad [1 ,4 ]
Bhatti, Masood Ahmed [5 ]
Giwelli, Ausama [3 ]
Keshavarz, Alireza [2 ]
Xie, Quan [1 ]
Sarmadivaleh, Mohammad [1 ]
机构
[1] Curtin Univ, Western Australia Sch Mines Minerals Energy & Che, 26 Dick Perry Ave, Kensington, WA 6151, Australia
[2] Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Joondalup, WA 6027, Australia
[3] Australian Resources Res Ctr ARRC, CSIRO Energy, 26 Dick Perry Ave, Kensington, WA 6151, Australia
[4] King Abdullah Univ Sci & Technol KAUST, Phys Sci & Engn Div, Thuwal, Saudi Arabia
[5] Premier Oilfield Solut PVT LTD, Sect 1-11-2, Islamabad, Pakistan
关键词
Supercritical Carbon dioxide; Fracturing; scCO 2-shale interactions; Adsorption swelling; Natural fractures; Shale; CARBON-DIOXIDE; PORE STRUCTURE; CO2-BRINE-ROCK INTERACTION; MECHANICAL-PROPERTIES; CO2; SEQUESTRATION; WATER; PRESSURE; SORPTION; FLUIDS; PERMEABILITY;
D O I
10.1016/j.fuel.2021.122682
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Multi-stage hydraulic fracturing has been identified as a must to develop shale gas reservoirs by increasing the stimulated reservoir volume (SRV). Supercritical CO2 (scCO2) has been studied as an alternating fracturing fluid due to its tendency to solve numerous problems associated with conventional aqueous based hydraulic fracturing such as formation damage, clay swelling, water scarcity and ground water contamination. However, its consequences to the host rock are not well understood. It has been recognized that scCO2-shale interaction alters the petrophysical properties during the long-term exposure of shale into scCO2, far little attention has been paid to understand the impact of this process for the short term. Thus, laboratory fracturing experiments using scCO2 on cubic shale samples (50 x 50 x 50 mm) in true triaxial stress cell (TTSC) were conducted. X-ray computed tomography (CT) imaging and low-pressure N2 adsorption were also performed to gain a deeper understanding of the fluid-rock interactions on the studied shales at a short-time process. Post-fracturing x-ray CT scans revealed a significant reduction, in the range of 14% to 46%, in the aperture of the natural fractures, indicating towards a possible scCO2 induced swelling. Mechanical compression test on the sample results in around 12% reduction in the fracture aperture, ruling out the possibility of confining stress being the key factor behind the fracture closure observed during fracturing. scCO2 soaking and N2 adsorption experiments showed the narrowing down of the macropores after scCO2 treatment implying the adsorption swelling as one of the controlling factors for the reduction of fracture aperture. Taken together, our results suggest that scCO2-shale interactions during the short term process of hydraulic fracturing can contribute to decreasing the conductivity of pathways between matrix and hydraulic fractures and hence adversely affecting the post-fracturing productivity of the rock.
引用
收藏
页数:15
相关论文
共 50 条
  • [21] Experimental study of supercritical CO2 fracturing on initiation pressure and fracture propagation in shale under different triaxial stress conditions
    Jiang, Yongdong
    Qin, Chao
    Kang, Zhipeng
    Zhou, Junping
    Li, Ye
    Liu, Hui
    Song, Xiao
    JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2018, 55 : 382 - 394
  • [22] Fracture propagation and induced strain response during supercritical CO2 jet fracturing
    Cai, Can
    Li, Bang-Run
    Zhang, Yi-Yao
    He, Wen
    Yang, Ying-Xin
    Kang, Yong
    Wu, Ji-Wei
    PETROLEUM SCIENCE, 2022, 19 (04) : 1682 - 1699
  • [23] A Review of Supercritical CO2 Fracturing Technology in Shale Gas Reservoirs
    Hou, Zhaokai
    Yuan, Yuan
    Chen, Ye
    Feng, Jinyu
    Wang, Huaishan
    Zhang, Xu
    PROCESSES, 2024, 12 (06)
  • [24] Analysis of Fracturing Expansion Law of Shale Reservoir by Supercritical CO2 Fracturing and Mechanism Revealing
    Wang, Li
    Zheng, Aiwei
    Lu, Wentao
    Shen, Tong
    Wang, Weixi
    Wei, Lai
    Chang, Zhen
    Li, Qingchao
    ENERGIES, 2024, 17 (16)
  • [25] Supercritical CO2 (SCO2) as alternative to water for shale reservoir fracturing
    Hazarika, Sankari
    Boruah, Annapurna
    MATERIALS TODAY-PROCEEDINGS, 2022, 50 : 1754 - 1757
  • [26] Micro-scale fracturing mechanisms in coal induced by adsorption of supercritical CO2
    Zhang, Yihuai
    Zhang, Zike
    Sarmadivaleh, Mohammad
    Lebedev, Maxim
    Barifcani, Ahmed
    Yu, Hongyan
    Iglauer, Stefan
    INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2017, 175 : 40 - 50
  • [27] The effect of shale bedding on supercritical CO2 jet fracturing: A experimental study
    Cai, Can
    Kang, Yong
    Yang, Yingxin
    Wang, Xiaochuan
    Li, Yang
    Huang, Man
    Wu, Jiwei
    JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2020, 195
  • [28] Hydraulic Fracturing Behavior in Shale with Water and Supercritical CO2 under Triaxial Compression
    He, Jianming
    Zhang, Yixiang
    Yin, Chao
    Li, Xiao
    GEOFLUIDS, 2020, 2020
  • [29] Pore network modelling of CO2-shale interaction for carbon storage: Swelling effect and fracture permeability
    Taghavinejad, Amin
    Rabbani, Arash
    Falcone, Gioia
    Shang, Junlong
    Arif, Muhammad
    Zhang, Yihuai
    INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, 2025, 141
  • [30] Experimental study on the supercritical CO2 fracturing of shale considering anisotropic effects
    Zhang, Yixiang
    He, Jianming
    Li, Xiao
    Lin, Chong
    JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2019, 173 : 932 - 940