Numerical Study of Gas Production from a Methane Hydrate Reservoir Using Depressurization with Multi-wells

作     者：SHANG Shilong GU Lijuan LU Hailong SHANG Shilong;GU Lijuan;LU Hailong

作者机构：College of EngineeringPeking UniversityBeijing 100871China School of Earth and Space SciencesPeking UniversityBeijing 100871China Beijing International Center for Gas HydratePeking UniversityBeijing 100871China 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2021年第95卷第3期

页      面：928-936页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0816[工学-测绘科学与技术] 082002[工学-油气田开发工程] 

基　　金：This work is funded by the Ministry of Science and Technology of the People's Republic of China(Grant No.2017YFC0307603) the China Geological Survey(Grant No.DD20190234 and HD-JJHT-20) 

主　　题：oil and gas upstream unconventional resources natural gas hydrate numerical simulation depressurization 

摘      要：With the implementation of the production tests in permafrost and offshore regions in Canada,US,Japan,and China,the study of natural gas hydrate has progressed into the stage of technology development for industrial *** depressurization method is considered as a better strategy to produce gas from hydrate reservoirs based on production tests and laboratory ***-well production is proposed to improve gas production efficiency,to meet the requirement for industrial *** evaluating the applicability of multi-well production to hydrate exploitation,a 2D model is established,with numerical simulations of the performance of the multi-well pattern carried *** understand the dissociation behavior of gas hydrate,the pressure and temperature distributions in the hydrate reservoir are specified,and the change in permeability of reservoir sediments is *** results obtained indicate that multi-well production can improve the well connectivity,accelerate hydrate dissociation,enhance gas production rate and reduce water production as compared with single-well production.