CAJ | 학술논문

通过对博格达北麓山前凹陷内近百口井的录井、测井、地震资料和分析化验数据以及5条野外露头剖面分析，进行侏罗系地层划分对比，建立地层格架。利用ZTR指数、重矿物组合、碎屑组分、沉积构造、地层厚度及砂砾岩分布等特征，对研究区物源及古流向进行分析和判断。选取重点井取心段进行观察描述，指出主要岩相类型和沉积体系：⑴辫状河—辫状河三角洲—滨浅湖沉积体系；⑵曲流河—湖泊三角洲—滨浅湖沉积体系；⑶冲积扇（干扇、湿扇）—扇三角洲—辫状河三角洲—滨浅湖沉积体系等，建立了相应的沉积相模式，阐明骨架砂体的展布特征，预测了有利的油气聚集区。
통과대박격체북록산전요함내근백구정적록정、측정、지진자료화분석화험수거이급5조야외로두부면분석，진행주라계지층화분대비，건입지층격가。이용ZTR지수、중광물조합、쇄설조분、침적구조、지층후도급사력암분포등특정，대연구구물원급고류향진행분석화판단。선취중점정취심단진행관찰묘술，지출주요암상류형화침적체계：⑴변상하—변상하삼각주—빈천호침적체계；⑵곡류하—호박삼각주—빈천호침적체계；⑶충적선（간선、습선）—선삼각주—변상하삼각주—빈천호침적체계등，건립료상응적침적상모식，천명골가사체적전포특정，예측료유리적유기취집구。
Based on the analysis of logging, seismic and laboratory test data of nearly one hundred wells and profile analysis of five field outcrops in piedmont depression of the northern Bogeda Mountain, the Juras-sic Strata are divided and correlated, and the stratigraphic frameworks are established. By using ZTR index, heavy mineral assemblages, detrital composition, sedimentary structures, stratigraphic thickness, sandstone distribution, the provenance and paleocurrent direction in the study area are analyzed. Selecting cored inter-vals of key wells to observe and describe, the main lithofacies types and depositional systems are pointed out: ⑴the braided river-braided river delta-shore-shallow lake depositional system,⑵the meandering river-lake delta-shore-shallow lake depositional system;⑶the alluvial fan(dry alluvial fan, wet alluvial fan)-fan delta-braided river delta-shore-shallow lake depositional system. And correspondent sedimentary facies models are established to clarify sandbody framework distribution characteristics and to predict favorable hydrocarbon accumulation zones.