重庆科技大学学报（自然科学版）2024，Vol.26Issue(4)：11-19,9.DOI:10.19406/j.issn.2097-4531.2024.04.002
超临界CO2压裂物理模拟实验研究进展
Advancements in Supercritical CO2 Fracturing Physical Simulation Experiments
摘要
Abstract
Supercritical CO2(SC-CO2)fracturing technology represents a highly promising emerging technique for enhancing production in unconventional oil and gas reservoirs.This technology not only effectively avoids issues such as formation damage,environmental pollution,and water resource depletion caused by traditional hydraulic fracturing but also offers advantages such as lower initiation pressure and complexity in fracture propagation.SC-CO2 fraturing experiment in an important technical means for conducting research on SC-CO2 fraturing technol-ogy,understanding and sumarizing the mechanism production increase.Therefore,this review discusses advance-ments in SC-CO2 fracturing experiments aimed at guiding the development of SC-CO2 fracturing technology.First-ly,the composition and functionalities of the laboratory-scale SC-CO2 fracturing experimental system are intro-duced,along with suggestions for addressing existing shortcomings in the experimental setup.Secondly,an analysis of research findings from SC-CO2 fracturing experiments is presented.It is observed that SC-CO2 exhibits lower in-itiation pressure compared to hydraulic fracturing due to its enhanced permeability.Additionally,SC-CO2 has the capability to interact with the internal microcracks and micropores of rocks,promoting the formation of complex fracture networks.Lastly,insights gained from experimental studies on the transport of SC-CO2 with proppants within fractures are summarized.The result indicates that the transport behavior of SC-CO2 with proppants is simi-lar to that of water-based fracturing fluids,albeit less effective.At present,it is necessary to strengthen laboratory experimental studies on the transport of SC-CO2 with proppants to further optimize process parameters for SC-CO2 fracturing.关键词
压裂技术/超临界CO2压裂/裂缝扩展/支撑剂运移Key words
fracturing technology/supercritical CO2 fracturing/fracture growth/proppant transport分类
能源科技引用本文复制引用
蔡灿,周圣文,陈浩,赵玉龙,张烈辉..超临界CO2压裂物理模拟实验研究进展[J].重庆科技大学学报（自然科学版）,2024,26(4):11-19,9.基金项目
国家自然科学基金重点项目"海相页岩水平井超临界二氧化碳压裂机理与一体化模拟研究"(52234003) （52234003）
国家自然科学基金青年基金项目"超临界CO2循环喷射压裂作用下干热岩储层缝网形成与增渗机理研究"(52004236) （52004236）
国家自然科学基金优秀青年科学基金项目"页岩气多尺度非线性渗流力学"(52222402) （52222402）
地球深部钻探与深地资源开发国际联合研究中心项目"超声-自振射流流场特性及强化除垢机理"(DEDRD-2023-06) （DEDRD-2023-06）
