准噶尔盆地石炭系火山岩岩性和岩相特征及其对储集层的控制  

Lithology and lithofacies Characteristic and their control of reserivor bed of Carbonniferous Volcanic in Dzungarian Basin

作　　者：王天娇 张洁[2] 唐小雯 Wang Tian jiao;Zhang Jie;Tang xiao wen

机构地区：[1]中油国际拉美公司 [2]中油国际(巴西)公司 [3]中国石油国际勘探开发有限公司 [4]中国石油大学(北京) [5]西安石油大学地质工程专业 [6]中国石油海外勘探开发公司

出　　处：《国外测井技术》2019年第2期10-18,M0002,共10页World Well Logging Technology

摘　　要：准噶尔盆地石炭系地层火山岩岩性变化较大,岩石类型多样;岩相可以划分为火山通道相、爆发角砾相、喷溢相、侵入相和火山沉积相5种。研究区储集性能整体较差,储集空间以次生孔隙、裂缝为主,物性总体相对较差,以低孔低渗为主,其中熔渣状玄武岩、杏仁状安山岩(玄武岩)、火山角砾岩和流纹质英安岩是研究区物性较好的火山岩储层,并且研究区火山岩孔隙度与渗透率及深度的相关性很低,储层物性的非均质性极强。油气主要聚集在物性较好的风化壳内。本文从岩性特征、储集空间类型、储集性能及影响因素等方面着手,分析该地区火山岩油气藏形成的有利因素,为进一步的油气勘探提供理论依据。In Dzungarian Basin,the lithology of Carbonniferous volcanic varies largely with diversity of rock types and the lithofacies can be divided into five types of volcanic crater facies,explosion-brecciafacies,eruption facies,intrusive facies and volcanical sedimentary facies. The research area has a poor reserving capacity and the typical reservoir bed is secondary pores and fractures. Basalt、andesite、breccia and rhyodacite are good Volcanic reserivoir. Oil and gas primary gather in weathering shell with better physical property. This paper analyzed the advantageous reasons of forming volcanic oil and gas reserivoir as well as provided theorical evidence of exploring oil and gas.

关 键 词：石炭系 火山岩 岩性 岩相 测井识别 FMI测井响应 储集空间 风化壳 

分 类 号：TE122.2[石油与天然气工程—油气勘探]