沉积盆地硅质碎屑岩地层模拟及应用实例  

STRATIGRPHIC SIMULATION OF SILICIOUS CLASTICS AND ITS APPLICATION

作　　者：王宇文[1] 崔早云 

机构地区：[1]海洋石油勘探开发研究中心，河北高碑店074000

出　　处：《中国海上油气（地质）》1994年第1期9-13,共5页China Offshore Oil and Gas(Geology)

摘　　要：为分析沉积盆地硅质碎屑岩充填的控制因素、预测储层特征及分布，以半经验算法为基础研制了二维地层模拟程序。以盆地沉降、海（湖）平面变化及沉积物补给速率为主要控制因素，对沉积盆地的充填作用进行模拟。结果表明：沉积层序的几何形态、岩相分布及层序间的关系等，主要受沉积物容纳空间在时空上的变化和碎屑供给速率的控制。辽东湾地区东营组中期沉积层序的模拟应用实例证明：该方法有助于分析盆地充填的主控因素，在钻井资料非常有限的情况下，还可以预测储层分布，控制地震资料的解释，检验勘探方案。In order to understand the factors controlling the silicious elastics fills in sedimentary basins and to predict the reservoir characteristics and distribution, a 2-D stratigraphic simulation programme is developed based on semi-empirical algorithms. Using the basin subsidece rate, relative sea (lake) level change and sediment inflex rate as main control factors, infilling activities in sedimentary basins are simulated. The results show that: the geometry of depositional sepuence, facies distribution and intersequence relationship are controlled mainly by the variation of accommodation in time and space and by the sediment influx rate. The depositional sequence simulation of middle Dongying formation in Liaodong Bay indecates :this method is useful to analyze the main factors controlling basin fills. In the case of very limited available drilling data, it can be used to predict reservoir distribution, to control the seismic intepretation and to check exploration programmers.

关 键 词：沉积盆地 硅质碎岩地 沉积地层模拟 层序地层这 海平面升降 油气地质 

分 类 号：P618.130.2[天文地球—矿床学] P539.2[天文地球—地质学]