摘要
经过10余年的勘探开发,苏丹的Muglad盆地已成为中石油海外勘探开发的主战场。厘定该盆地这种突出商业价值的地质因素主要表现在以下两个方面:1)被动裂谷的多旋回推移,在坳陷期的准平原背景下沉积了高岩石成分成熟度的石英砂岩,加之超淡地层水的成岩环境,最终形成盆地的高孔高渗储层;2)“教科书”式的生储盖组合。
After explorating and developing for more than 10 years, Muglad basin has become a primary overseas field of oil development of CNPC. The main geologic factors that confirm this outstanding commercial value hold on two aspects. One is that, by the shove of passive rift valley polycycle, quartz sandstone with high maturity of lithologic composition deposits on the background of sub-plain during sag period; together with the rock formation environment of paranormal saltless local water, the reservoir characterized by high porasity and permeability is formed. The other aspect is an association of source-reservoir-cap rock named ＂textbook＂ type.
出处
《资源与产业》
2006年第2期67-70,共4页
Resources & Industries
关键词
苏丹
被动裂谷
储层
中非剪切带
Sudan
passive rift
reservoir rock
Central Africa shear zone
