CAJ | 학술논문

前人研究多认为别古庄油田京58区块沙四上段发育湖泊三角洲-滩坝体系，本文通过详细的岩心观察与描述，结合测井、录井资料，从单井相剖面分析入手，对研究区沙四上段的沉积特征与沉积相进行研究。研究表明，京58-4井沙四上段取心岩性较粗，以底部见冲刷构造的正韵律层序为主，为典型的河道层序，综合研究认为，研究区沙四段发育辫状河三角洲前缘亚相，可识别出水下分流河道、河道沙坝、河道间、河口沙坝、沙席等微相。
전인연구다인위별고장유전경58구괴사사상단발육호박삼각주-탄패체계，본문통과상세적암심관찰여묘술，결합측정、록정자료，종단정상부면분석입수，대연구구사사상단적침적특정여침적상진행연구。연구표명，경58-4정사사상단취심암성교조，이저부견충쇄구조적정운률층서위주，위전형적하도층서，종합연구인위，연구구사사단발육변상하삼각주전연아상，가식별출수하분류하도、하도사패、하도간、하구사패、사석등미상。
Previous studies consider that thesedimentary facies of upper Es4,Jing 58 block in Bieguzhuangoilfield is lake delta- beach barsedimentarysystem.Guided by the modern theory of sedimentology andthe high resolution sequence stratigraphy,based on the careful core observation and the analysis of single well facies and combing well logging and logging,we studied thesedimentary characteristics and sedimentary facies of upper Es4,Jing 58 block in Bieguzhuangoilfield. There are braid river deltas front sub-facies in the upper Es4 periods, in study area.There are 5 sedimentary microfacies that can be recognized, including underwater distributive river course, Channel bars, interdistributarybay ,estuarine bar, blanket sand, etc.