【摘要】 柴达木盆地西部花土沟油区碳酸盐岩主要分布于上干柴沟组的上部和下油砂山组的底部 ,与砂岩、泥岩呈不等厚互层 ,单层厚度 0 .5～ 3m,累计厚度可达 10多米。其中藻纹层灰岩和藻叠层灰岩溶孔发育 ,分布范围广 ,厚度大 ,物性最好 ,是一种特殊的油气储层。藻纹层灰岩和藻叠层灰岩发育于相对稳定的滨浅湖环境 ,其发育规模和储层性质主要受沉积环境的稳定性、早期淋溶程度和晚期胶结充填强度的控制。更多还原

【Abstract】 The carbonate rock in the Huatugou oilfield is mainly distributed in the top of the Shangganchaigou Formation and the base of the Xiayoushashan Formation, interbedded with sandstone and mudstone. Laminar algal limestone and stromatolite algal limestone are very good oil reservoir beds in the Huatugou oilfield. The scale of development and reservoir quality of laminar algal limestone and stromatolite algal limestone are controlled by the sedimentary environment, early solution and late cementation.更多还原