摘要
在深入研究天然气在地下岩石中扩散机理及其模型的基础上,分析了地层剥蚀对天然气扩散散失的影响,建立了地层剥蚀对天然气扩散散失影响的地质模型及数学模型。模拟计算结果表明,地层剥蚀使天然气扩散散失量减小。随地层剥蚀量增加,天然气扩散散失量开始明显减小,达到一定程度后减小速度变缓,这一结果符合影响天然气扩散散失各因素随埋藏深度的变化情况。
The analysis of formation denudation effect on diffusion and dissipation of natural gas is based on the in-depth study of diffusion mechanism and models of natural gas in underground strata,and related geological model and mathematical model have been developed.The results of simulation and estimation show that the formation denudation could make the amount of gas diffusion and dissipation obvious decrease to some extent.Then the extent would be slow down.This conclusion is in accordance with the various factors variations influencing gas dissipation with changes of buried depth of underground strata.
出处
《新疆石油地质》
CAS
CSCD
2002年第1期32-34,共3页
Xinjiang Petroleum Geology
基金
国家重大基础研究项目(G1999043310)
