摘要
在碳酸盐沉积学、古生物学的理论和方法的指导下,结合构造、沉积学理论的新进展,依据测井、岩心、薄片及区域等资料,对中古3井区上奥陶统良里塔格组沉积相进行了详细的研究。研究表明,良里塔格组良五段到良二段总体上表现了由海进—海退的沉积过程;灰泥丘沿台地边缘成线、成带发育;组合形态上主要发育丘滩复合体;从良里塔格组良三段沉积时期到良二段沉积时,丘滩体的发育范围逐渐增大,至良一段时主要发育礁滩复合体。
Under the guidance of carbonate sedimentology and palaeontology of the theories and methods,with combination of structure and sedimentology theory of progress,and based on well logging,core,sheet and regional information,a detailed study of sedimentary facies of Upper Ordovician Lianglitage formation in well Zhonggu 3 area was carried out. The study shows that lime mud mound developed in line and zone structure along the margin of platform,the main array configuration is a developed plaster mound and bank complex, during the deposition of Liang 3 to Liang 2,plaster mound and bank complex gradually increase,reef and bank complex developed in Liang 1 formation.
出处
《石油地质与工程》
CAS
2010年第4期8-11,共4页
Petroleum Geology and Engineering
关键词
塔中地区
良里塔格组
地层
沉积相
Tazhong area
Lianglitage formation
formation
sedimentary facies
