Natural gas production from hydrate dissociation: An axisymmetric model

被引：28

作者：

Ahmadi, Goodarz ^{[1
]}

Ji, Chuang

Smith, Duane H.

机构：

[1] Clarkson Univ, Dept Mech & Aeronaut Engn, Potsdam, NY 13699 USA

[2] Natl Energy Technol Lab, Dept Energy, Morgantown, WV 26507 USA

来源：

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 2007年 / 58卷 / 1-2期

关键词：

hydrate; natural gas production; hydrate dissociation; numerical model;

D O I：

10.1016/j.petrol.2007.01.001

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper describes an axisymmetric model for natural gas production from the dissociation of methane hydrate in a confined reservoir by a depressurizing well. During the hydrate dissociation, heat and mass transfer in the reservoir are analyzed. The system of governing equations is solved by a finite difference scheme. For different well pressures and reservoir temperatures, distributions of temperature and pressure in the reservoir, as well as the natural gas production from the well are evaluated. The numerical results are compared with those obtained by a linearization method. It is shown that the gas production rate is a sensitive function of well pressure. The simulation results are compared with the linearization approach and the shortcomings of the earlier approach are discussed. Published by Elsevier B.V.

引用

页码：245 / 258

页数：14