塔里木盆地北部雅克拉凝析气田的扩散量及其地质意义  

THE DIFFUSIVE FLUX OF THE YAKELA CONDENSATE FIELD IN THE NORTHERN TARIM BASIN AND ITS GEOLOGICAL SIGNIFICANCE

作　　者：叶德胜[1] 高国强[2] 

机构地区：[1]地质矿产部05项目工程处 [2]地质矿产部石油地质中心实验室

出　　处：《石油勘探与开发》1992年第3期1-5,共5页Petroleum Exploration and Development

摘　　要：在高温中压条件下,对塔里木盆地北部雅克拉凝析气田扩散系数及扩散量的计算表明,在漫长的历史过程中,扩散损失量大到足以使气藏破坏的规模。下古生界气藏很可能形成于喜山期,其扩散损失量较小;卡普沙良群底块砂岩气藏则是通过其下的下古生界气藏的扩散进入量与其扩散损失量(通过其上盖层)的大体平衡而得以保存。Under the condition of high temperature and medium pressure,cal- culation of diffusion coefficient and diffusive flux for the Yakela condensate field in northern Tarim basin shows that the lose of natural gas by diffusion is large enough to destruct gas field in long geological time.The gas pool of Lower Paleozoic is probably formed in Himalayans period.Thus its diffusive flux is less;and the preservation of the gas pool of the Kapushaliang group bottom sandstone is through the equilibration between diffusive entering flux of underlying Lower Paleozoic gas pool and the diffusive lossing flux through overlying cap beds.

关 键 词：塔里木盆地 凝析气田 扩散量 地质 

分 类 号：P618.13[天文地球—矿床学]