地层剥蚀对油气沿断裂渗滤散失影响的定量研究

Quantitative Research on the Influence of Strata Denudation to the Permeation Losing of Oil or Gas through a Fault

在深入研究油气在地下沿断裂渗滤散失机理及影响因素的基础上 ,分析了地层剥蚀对油气沿断裂渗滤散失的影响 ,建立了地层剥蚀对油气沿断裂渗滤散失影响的地质模型和数学模型。模拟计算结果表明 ,地层剥蚀使油沿断裂渗滤散失量增大 ,而使气沿断裂渗滤散失量减小。

Based on studying deeply the permeation los ing mechanism of oil or gas through a fault and its influence factors, the influence of strata denudation to the permeation losing of oil or gas through a fault is analyzed, and the geological and mathemati cal models for the influence of strata denudation to the permeation losing of oil or gas through a fault is established. The modeling calculation results indi cated that strata denudation maks the permeation losing amount of oil through a fault to increaes, the permeation losing amount of gas through a fault to decrease. The results tally with the change of factors influencing the permeation losing amount of oil or gas through a fault vs. depth.