石油勘探与开发2026，Vol.53Issue(2)：440-454,15.DOI:10.11698/PED.20250421
新一代体积改造技术新内涵、关键问题及未来发展方向
Connotation,key issues,and future development of the new-generation volume stimulation technology
摘要
Abstract
This paper systematically reviews the development history and generational characteristics of multi-stage fracturing technology in horizontal wells,and defines the connotation and essence of the new-generation volume stimulation technology which is represented by extreme limited entry(XLE).The research indicates that classical fracturing theory remains the comerstone for optimizing stimulation designs.Optimization based on fracture units is fundamental for achieving"perfect fracturing",while"proppant loading intensity"serves merely as a statistical parameter and therefore cannot be used to evaluate fracturing effectiveness.Consequently,expanding the stimulated volume is identified as the key to achieving optimal stimulation results.Regarding limited entry perforation strategies,the study clarifies that all clusters initiation can be achieved when total perforation friction exceeds the horizontal in-situ stress difference among clusters.Furthermore,XLE requires a total perforation friction greater than 10 MPa,superimposed on the treating pressure at wellhead after all clusters initiation,to ensure even fluid distribution across all fractures.Based on the characteristics of"fracture swarms"observed in cores from hydraulic fracturing test sites(HFTS),it is revealed that creating a single principal fracture is critical for effective fracture propagation.Drawing on the rheological characteristics of proppant settling in slickwater and learnings from North American HFTSs,three novel viewpoints on modern fracturing are proposed:Slickwater fracturing relies on velocity for proppant transport,and subsequently injected proppant travels the furthest,suggesting that"CounterProp"is the future direction of fracturing technology;High-viscosity slickwater struggles to achieve effective proppant transport;The proppant settling mode determines that the dynamic fracture width during the treatment is effectively equal to the propped fracture width.Finally,the technical connotation and implementation pathway for"whole-domain propped"treatment are presented,and a future development vision for Autonomous Intelligent Fracturing(AIF)is proposed.关键词
体积改造/极限限流/裂缝控藏/密切割/全域支撑/完美压裂/气悬浮/逆序输砂/支撑缝宽Key words
volume stimulation/extreme limited entry/fracture-controlled reservoir/close cutting/full-domain propping/perfect fracturing/gas suspension/CounterProp/propped fracture width分类
能源科技引用本文复制引用
胥云,李帅,蒋豪,翁定为,马泽元,李德旗,才博,陈铭,易新斌,付海峰,杨战伟..新一代体积改造技术新内涵、关键问题及未来发展方向[J].石油勘探与开发,2026,53(2):440-454,15.基金项目
国家科技重大专项"煤岩储层致裂机理与减水压裂技术及装备"(2025ZD1404206) （2025ZD1404206）
中国石油天然气股份有限公司科技专项"非常规储层改造关键技术研究"(2023ZZ28) （2023ZZ28）
