塔里木盆地轮古油田奥陶系储层特征及主控因素  

Characteristics and main controlling factors of the Ordovician carbonate rock reservoirs in Lungu oilfield,Tarim basin

作　　者：程飞 韩杰[2] 韩开飞 刘俊峰[2] 崔仕提[2] 罗新生[2] 翟姝玲[2] 

机构地区：[1]山东胜软科技股份有限公司胜软油气勘探开发研究院,山东东营257000 [2]中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒841000

出　　处：《东北石油大学学报》2015年第3期15-24,2,共10页Journal of Northeast Petroleum University

基　　金：中国石油天然气股份公司重大科技专项(2014E-2015);国家科技重大专项(2011ZX05004)

摘　　要：针对塔里木盆地轮古潜山奥陶系油气藏勘探开发现状,引入试井分析方法,基于轮古地区的钻井、岩心、测井、地震、试井和分析化验资料,分析轮古地区储层岩石类型、沉积相特征、储集空间类型、储层物性和储层分布特征,研究储层主控因素.结果表明:轮古地区奥陶系碳酸盐岩经过各种成岩作用改造,其原生孔隙已被破坏殆尽,有效孔隙空间主要是加里东—海西期构造及岩溶作用形成的裂缝和溶蚀孔洞,储层分布的非均质性极强.岩溶缝洞型储集体的发育主要受岩性岩相、岩溶作用和构造破裂作用等因素控制.岩性岩相是储层的基础,岩溶作用和构造破裂作用是储层形成和发育的主要控制因素,溶蚀孔洞是稳产的条件,裂缝是高产、稳产的关键.碳酸盐岩储层特征是岩性、沉积环境、多种成岩作用和构造活动等因素综合作用结果,即碳酸盐岩储层通常是岩性、沉积环境、成岩作用和构造作用相互叠加的产物.According to the Tarim basin buried hill Ordovician reservoir exploration and development of the difficulty,based on the round of the ancient region of well drilling,core,logging,seismic reflection,well test and analysis of test data with the application subject of the new theory and technical method,round the ancient region the Ordovician carbonate rocks with various diagenesis modification,its primary pores have been destroyed,the effective pore space is mainly caledonian-hercynian tectonic and karstification formation fracture and solution pores,the distribution of the reservoir is heteropical.Karst seam hole type development mainly by the lithology of reservoir rock facies,Karstification and tectonic fracture effect factors such as control.Studies of types of carbonate reservoir in the region,nature and characteristics find out the main controlling,help to study hydrocarbon accumulation,distribution and accumulation model,for the region is of great significance to the increase in oil reserve and production.

关 键 词：岩溶作用 储层特征 高能相带 奥陶系 塔里木盆地 

分 类 号：TE122.2[石油与天然气工程—油气勘探]