准噶尔盆地阜东斜坡区侏罗系测井沉积相研究

本文就准噶尔盆地阜东斜坡区侏罗系测井沉积相研究进行了探讨。主要应用常规测井资料、地层倾角测井资料及成像测井资料为核心的测井相序列去分析和判断沉积类型以及沉积相。经过ANN岩相处理，看出典型的三角洲沉积岩相序列自下而上依次为三角洲前缘远砂坝、河口砂坝、分流间湾、水下分流河道、分之河道及分之河道间，将其结果与录井剖面对比，符合率非常高，为区域上关键井的相序分析及沉积体系分析提供了连续的较准确的岩相依据。通过古水流系统的确定，看出研究区侏罗系八道湾组-三工河组沉积时期的物源主要来自北部克拉美丽山以北地区。南部北三台地区以南存在次要物源。最后综合利用常规测井处理解释的岩性剖面、岩心刻度下处理出来的沉积学倾角解释成果（沉积构造和古水流）和ANN岩相处理解释成果，建立起了阜东斜坡区关键井目的层段的测井沉积亚、微相模型。

WELL LOGGING SEDIMENTARY FACIES OF THE JURASSIC IN EAST FUKANG SLOPE OF JUNGGAR BASIN

The sedimentary characteristics and sedimentary facies have been analyzed and defined by using data of common well logging,dip logging and image logging. The treatment of ANN lithofacies shows that typical delta facies include distal bar,mouth bar,subaqueous distributary channel,interdistributary estuary in delta front,delta plain branch channel and inter branch channel in ascending order.The correlation between lithofacies and logging section shows almost no difference,which contribute to the analysis of facies sequences and sedimentary systems in the study region.The definition of palaeocurrent system shows that provenance is mainly located in the north of Kelameili Mountain, and there is secondary provenance in the south of Beisantai during the depositional period of Badaowan and Sangonghe Formations.Comprehensively applying the lithologic section interpreted by the common well logging data, the sedimentary structure and palaeocurrent interpreted by dip logging with the core correction, and ANN treatment results, the well logging models of sedimentary subfacies and mircofacies of the Jurassic in the key wells of East Fukang Slope are established.