藻纹

酒泉盆地下白垩统藻纹层分布特征及其与油气的关系

Laminar Algal Distribution Characteristics of Lower Cretaceous and the Relation to Oil-gas of Jiuquan Basin

藻纹层的分布与发育都受到沉积相及相变的控制。

The distribution and yield of laminar algal are all controlled by sedimentary facies and its change .

藻纹层含量与源岩的生烃潜力呈正相关关系。

There has a positive correlation between the content of laminar algal and the hydrocarbon generating potentiality of source rock .

此类原油主要源于青西凹陷下沟组沉积于较强还原环境的藻纹层泥质白云岩。

This type oil is mainly from the laminar algal shaly dolomite of Xiagou formation that deposited in the reduction environment of Qingxi Depression region .

通过有机岩石学研究，在本区下白垩统源岩中发现了荧光性极强的藻纹层。

For the first time , the algae laminae with strong fluorescence are found out in the Cretaceous source rocks through the research of organic petrology .

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。

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 .