塔里木盆地英买力低凸起奥陶系碳酸盐岩储层特征及其成岩作用

指出英买力低凸起奥陶系古潜山碳酸盐岩主要由灰色、深灰色、灰白和灰褐色的生屑灰岩、砂屑灰岩、白云岩、瘤状灰岩和泥晶灰岩等组成,自上而下分为泥质灰岩段、灰质泥岩段、瘤状灰岩段、生屑灰岩段、燧石泥晶灰岩段、泥晶灰岩夹粒屑灰岩段、云质灰岩段和灰质云岩段等8个岩性段;储层分为暴露浅滩型、岩溶型、深埋热液白云岩型、古风化壳潜山型和构造裂缝型储层等5种不同成因类型;在长期的漫长地质演化过程中主要经历了海水成岩环境、混合水成岩环境、蒸发海水成岩环境、早期大气淡水成岩环境、埋藏成岩环境、晚期大气淡水成岩环境和再埋藏成岩环境等。

THE ORDOVICIAN CARBONIC RESERVOIR CHARACTERISTICS AND MINERALIZATION IN YINGMAILI LOW HEAVE OF TARIM BASIN

The yingmail low heave carbonic buried hill includes gray,dark-gray,offwhite and dust-colour biologic,sandstonic,strumae,mud carbonate And dolomite.It is separated eight lithology sects from up to down:Mud carbonate,gray matter mud, strumaed carbnote,biologic carbnote,flint carbnote,mud and biologic carbonate,dolomitic carbnote,carbnotic dolonate.It is separated five mineralization types:exposure bank,harst,deep buried dolomite,paleo-carbonate buried hill,tectonic-rimose and so on.In the long geologic evolvement,it lived seawater mineralization condition,mixed water mineralization condition,vaporized seawater mineralization condition,forepart fresh water mineralization condition,buried mineralization condition.