石油科学通报2026，Vol.11Issue(1)：257-275,19.DOI:10.3969/j.issn.2096-1693.2026.02.001
天然气水合物开采数值模拟:理论、技术与应用
Numerical simulation of natural gas hydrate production:Theories,technologies,and applications
摘要
Abstract
The goal of"carbon peak and neutrality"is driving China's energy system to accelerate transition to clean,low-car-bon development.As an important new clean energy source,natural gas hydrate(NGH)exhibits high energy density,wide distribution,and substantial resource potential.Therefore,accelerating its industrial production is key to achieving a reduction in pollution and carbon emission.NGH production involves Thermal-Hydrological-Mechanical-Chemical(THMC)multi-physical field coupling.Traditional experiments and production tests fail to fully reveal underlying mechanisms,making numerical simulation—with high functionality,flexible methods,and low cost—an essential research tool.This study systematically reviews theories,technologies,and applications of numerical simulation for natural gas hydrate production to provide theoretical support for safe,efficient extraction and advance the translation of simulation technologies to engineering practice.Specifically,it clarifies evolution laws of seepage parameters(e.g.,porosity,permeability)during hydrate dissociation;identifies evolution of mechanical parameters(e.g.,shear strength,cohesion)with hydrate saturation,revealing the core mechanism by which hydrates dominate reservoir mechanical property evolution via decomposition behaviour;outlines approaches to constructing THMC multi-physical field coupling models;summarizes functions and advantages of major global simulators(e.g.,TOUGH+Hydrate,SuGaR-TCHM),and validates applications at typical pilot sites.Current numerical simulation research has limitations:multi-phase flow models insufficiently account for continuous pore structure evolution and impacts of hydrate saturation on relative permeability;characterization of mechanical properties and sand production risk responses in unconsolidated clayey silt sediments is inadequate;and capacity to predict long-term mechanical stability risks(e.g.,land subsidence,submarine landslides)induced by production is limited.Future work should establish"micro-macro"cross-scale parameter models,refine elastoplastic constitutive models for clayey silt sediments,and develop integrated geological engineering simulation tools to advance simula-tion technologies from mechanistic interpretation to engineering decision support.关键词
天然气水合物/数值模拟/多相渗流/力学性质/试采工程应用Key words
natural gas hydrate/numerical simulation/multi-phase flow/mechanical property/production tests分类
能源科技引用本文复制引用
李耀斌,许天福,辛欣,袁益龙,朱慧星..天然气水合物开采数值模拟:理论、技术与应用[J].石油科学通报,2026,11(1):257-275,19.基金项目
国家自然科学基金重点项目"深部超临界地热流体运聚过程水岩化学作用机理与多相流动规律研究(批准号:3A2213285425)"和国家自然科学基金面上项目"水合物分解过程多相渗流参数动态演化及多尺度多方法联合反演(批准号:4227622)"联合资助 （批准号:3A2213285425）
