白豹油田三叠系长3，长4＋5沉积微相研究  

SEDIMENTARY MICROFACIES STUDY OF CHANG 3 CHANG 4+5 OF TRIASSIC FORMATION IN BAIBAO OIL FIELD

作　　者：关成尧[1] 赵国春[1] 李晓锋[2] 于文娟[1] 赵甜[1] 

机构地区：[1]中国地质大学(北京)地质过程与矿产资源国家重点实验室,北京100083 [2]中国石油大学(北京)资源与信息学院,北京102249

出　　处：《新疆地质》2009年第1期62-65,共4页Xinjiang Geology

基　　金：重大基础研究前期研究专项(2002CCA00700)资助

摘　　要：从区域背景出发,根据重矿物分析、砂岩厚度和砂岩百分含量确定沉积物源方向为NNE向.综合利用岩心、测井、粒度分析、沉积构造等资料,对白豹油田三叠系延长组长3、长4+5沉积微相进行系统研究.结果表明,长3、长4+5为三角洲前缘沉积,主要发育水下分流河道、河口坝、远砂坝、支流间湾4个微相.在地层划分与对比基础上,根据泥岩颜色、沉积旋回、测井相分析与砂岩厚度、砂岩百分含量,确定沉积微相平面展布特征,并总结出研究区相层序和相模式,为储层特征研究、油田开发提供地质依据.Guided by geological background, Based on the analysis of heavy mineral thickness of sandstone and the percent of sandstone, the orientation of provenance is North North East. Sedimentary microfacies study of chang 3 chang 4＋5 of Triassic formation in BaiBao oil field were studied using Core, Log, particle-size analysis and sedimentary structure This district belongs to deltaic front deposit, and it is further divided into four microfacies：subsea distribntary channel, mouth bar, distal bar and tributary valley. Using materials of color of mud rock cyclic deposition electrofacies analysis thickness of sandstone and the percent of sandstone, the flat distribution of microfacies is established on basis of stratigraphic division. At last, facies sequence and facies pattern of the district is surnmaried. All of these provide the dependable geology recognition for the character of reservoir and exploitation plan.

关 键 词：白豹油田 沉积微相 三角洲相 相层序 相模式 

分 类 号：P618.13[天文地球—矿床学]