西南石油大学学报（自然科学版）2026，Vol.48Issue(1)：23-32,10.DOI:10.11885/j.issn.1674-5086.2025.09.15.08
渤海缝网压裂组合支撑剂导流能力影响规律研究
A Study on Influence Law of Flow Conductivity of Combined Proppant For Network Fracturing in Bohai Sea
摘要
Abstract
The Bohai Sea oilfield has abundant low-permeability reserves,which are important replacement resources for in-creasing reserves and production.Among them,the C Oilfield in the Bohai Sea has well-developed natural fractures in the buried hill reservoirs.Volume fracturing to create complex fracture networks is a key technical means for development.To address the issue that the influence law of single-layer proppant placement of secondary fractures on conductivity is still un-clear during network fracturing,a prediction model for the conductivity of secondary fractures with multi-size distribution was established based on the plane contact theory.The correctness of the model was verified through model degradation and ex-perimental analysis,and the influencing factors were analyzed.The research results show that increasing the proportion of large-sized proppants is beneficial to maintaining the width of secondary fractures;the permeability of secondary fractures is approximately linearly and positively correlated with the proportion of large-sized proppants;in the case of multi-size prop-pant combinations,as the proportion of large-sized proppants increases,the conductivity of secondary fractures improves,and large-sized proppants play a key role in conductivity.The research conclusions provide theoretical guidance for the selection of proppant sizes in the fracture network fracturing design process in the Bohai Sea.关键词
复杂缝网/导流能力/单层铺置/粒径组合/支撑剂嵌入Key words
complex fracture network/flow conductivity/single-layer placement/particle size combination/proppant embed-ment分类
能源科技引用本文复制引用
张明,谢宗财,崔国杰,郭布民,顾金彪,董平华..渤海缝网压裂组合支撑剂导流能力影响规律研究[J].西南石油大学学报（自然科学版）,2026,48(1):23-32,10.基金项目
国家科技重大专项(2024ZD1403800) （2024ZD1403800）
