摘要
为探讨塔里木盆地轮古东地区上奥陶统良里塔格组礁滩体灰岩的沉积模式、储集层特征和油气富集规律,开展了新一轮气藏精细描述研究。结果表明,良里塔格组自下而上可分为瘤状灰岩段和颗粒灰岩段,沉积环境属远端变陡的无镶边缓坡型碳酸盐岩台地沉积;储集层主要发育于颗粒灰岩段,为低孔中低渗层状裂缝-孔洞型储集层,储集层的发育主要受岩性、岩溶风化壳及断裂的控制;油气以垂向断裂与礁滩体储集层为纵横向输导体系,主要分布于主干断裂及多期断裂交汇部位的断裂破碎带附近。
In order to discuss the sedimentation mode,reservoir characteristics and enrichment regulation of hydrocarbon for the reef-flat limestone body of the Upper Ordovician Lianglitage Formation in the Lungudong area of the Tarim Basin,a new round of fine description on gas reservoir has been carried out in this paper.Results show that the limestone of the Ordovician Lianglitage Formation in the Lungudong area can be divided to nodular and grained limestone members from the bottom to the top.The limestone was deposited in the environment of the distal steepening edgeless gentle-sloping carbonate platform.The reservoirwas mainly developed in the grain limestone member with low-porosity and mid to low-permeability.The development of reservoir is mainly under the control of lithology,weathering karstic crust,and fracture of the sedimentary rock.The gas and oil,transported through vertical fractures and reef-flat reservoir as their vertical-horizontal dredging systems,are mainly distributed in or near the fracture crushing zone in the conjunction of the main fracture and other fractures of multiple phases.
出处
《矿物岩石地球化学通报》
CAS
CSCD
北大核心
2016年第4期710-718,共9页
Bulletin of Mineralogy, Petrology and Geochemistry
基金
中国石油天然气股份有限公司重大科技攻关专项(22121G20112001)
作者简介
韩杰（1979-），男，高级工程师，研究方向：油气藏综合地质研究．E-mail：gshanjie@163．com
