摘要
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。
Previous studies consider that thesedimentary facies of upper Es4,Jing 58 block inBieguzhuangoilfield is lake delta- beach barsedimentarysystem.Guided by the modern theory ofsedimentology andthe high resolution sequence stratigraphy,based on the careful core observation andthe analysis of single well facies and combing well logging and logging,we studied thesedimentarycharacteristics and sedimentary facies of upper Es4,Jing 58 block in Bieguzhuangoilfield. There arebraid river deltas front sub- facies in the upper Es4 periods, in study area.There are 5 sedimentarymicrofacies that can be recognized, including underwater distributive river course, Channel bars,interdistributarybay ,estuarine bar, blanket sand, etc.
出处
《科技通报》
北大核心
2015年第1期34-36,共3页
Bulletin of Science and Technology
