石油勘探与开发2026，Vol.53Issue(2)：468-478,11.DOI:10.11698/PED.20250469
水合物储层人工裂缝支撑剂嵌入深度预测方法
A prediction method for proppant embedment depth in artificial fractures of hydrate reservoirs
摘要
Abstract
Given the absence of a prediction method for proppant embedding depth in artificial fractures of hydrate reservoirs,this study employs a hypoplastic constitutive model to quantitatively evaluate the impact of hydrate saturation on the mechanical parameters of the sediments.By integrating the load distribution at the proppant-sediment interface with their respective deformation characteristics,a computational model is developed to determine the proppant embedment depth across three distinct stages:elastic,elastoplastic and fully plastic.Based on the established model,the influences of hydrate saturation,proppant particle size,proppant arrangement pattem,and closure pressure on the proppant embedding depth are analyzed.The results demonstrate that the proppant embedding depth in fractures of hydrate reservoirs increases with greater closure pressure and larger proppant particle sizes,while it decreases with higher hydrate saturation and increased proppant areal packing density.At a constant closure pressure,the proppant embedding depth exhibits a nonlinear relationship with hydrate saturation,proppant particle size,and proppant areal packing density,with this nonlinearity becoming more pronounced at elevated closure pressures.关键词
天然气水合物/人工裂缝/支撑剂嵌入深度/影响因素/预测模型Key words
gas hydrate/artificial fracture/proppant embedment depth/influencing factor/prediction model分类
能源科技引用本文复制引用
吴能友,张永超,张家伟,陆敬安,李彦龙,申凯翔,纪云开,陈强..水合物储层人工裂缝支撑剂嵌入深度预测方法[J].石油勘探与开发,2026,53(2):468-478,11.基金项目
国家自然科学基金地质联合基金项目"南海天然气水合物降压开采储层人工裂缝失效机理与增渗修复方法"(U2444215) （U2444215）
国家自然科学基金面上项目"南海泥质粉砂水合物储层人工裂缝导流能力损伤机理"(42570613) （42570613）
国家重点研发计划项目"天然气水合物储层改造基础"(2023YFC2811001) （2023YFC2811001）
泰山学者工程(ts201712079,tsc202507292) （ts201712079,tsc202507292）
