摘要
第七砂层组是东濮凹陷杜寨地区深部的主要储层，该砂层组发育于Ｅｓ３３亚段ＴＲ旋回层序Ⅰ的顶部，属辫状三角洲前缘亚相的水下分流河道及前缘砂坝沉积，其中以水下分流河道砂体储集物性较好。依据ＴＲ旋回层序的地质研究结果，应用速度、振幅、频率和相位等多项地震参数综合预测砂体分布，结果表明水下分流河道砂体呈东西向条带状展布于ＰＳ１２ＰＳ５ＰＳ４井区，具有明显的河道特征。预测的砂体分布与沉积相的平面展布以及钻井测试结果具有很好的一致性。
The seventh sand set in Duzai area,Dongpu depression is a main target reservoir at the deep and is developed in the top of T R (transgression regression) sedimentary cycle I in the sub-member of Es 3 3.Its sandbodies are constituted by underwater distributary channel and foredelta sand bar of braided delta front sub-facies,and sandstones of underwater distributary channel have better reservoir properties.On the basis of geologic reaserch of T R sedimentary cycles,a comprehensive prediction of the sandbodies is made by using multiple seismic parameters such as velocity, amplitude,frequency and phase.It is found that the sandbodies of underwater distributary channel are distributed as a belt along east west in the area of wells PS12 PS5 PS4.The correlation between the predicted distribution of sandbodies, regional distribution of depositional facies and the data from drilling log shows their correspondence
出处
《江汉石油学院学报》
CSCD
北大核心
1998年第1期13-18,共6页
Journal of Jianghan Petroleum Institute
关键词
地震勘探
储层预测
层序地层学
砂体
seismic exploration
(reservoir prediction)
sequence stratigraphy
Dongpu depression
