【作者】 雷海艳；

【导师】 柳成志；

【作者基本信息】 东北石油大学 ， 矿物学、岩石学、矿床学， 2012， 硕士

【摘要】 本文通过对牛圈湖—马北地区石炭系火山岩岩心观察、薄片鉴定、测井、地震及储层特征的综合分析应用，完成了该区火山岩有效储层预测，并进行了火山岩油气成藏规律研究。本文将石炭系哈尔加乌组划分出2个旋回、4个期次；将卡拉岗组划分为1个旋回、4个期次。在牛圈湖—马北主要发育中基性熔岩和火山碎屑岩两大类（其中熔岩占44.91%，火山碎屑岩占55.09%）34种小类。总体表现为玄武岩类为主、安山岩类次之，存在部分中基性过渡岩性。结合地震相特征将石炭系火山岩储层火山岩相划分出：爆发相、溢流相、火山沉积相、火山通道相和侵出相。据16口井岩心观察描述和28口井普通、铸体薄片鉴定得出，牛圈湖—马北地区石炭系火山岩具有储层非均质性强、储集空间类型多、孔隙结构复杂、次生作用影响强烈的特征，主要包括原生孔缝和次生孔缝两大类。研究发现卡拉岗组属于中孔隙度中低渗透率储层，哈尔加乌组属于中低孔隙度低渗透率储层。研究区火山岩类含油性总体上以火山角砾岩和玄武岩最好、安山岩次之，粗面岩、凝灰岩、沉凝灰岩较差。研究认为：卡拉岗组风化壳处储层发育较凹陷内部好，火山喷发期次上以C2k1-3、C2k1-2两个期次内储层最为发育，C2k1-1、C2k1-4两个期次总体反映不如C2k1-3、C2k1-2；哈尔加乌组C2h1-2、C2h2-1储层发育最好，C2h1-1、C2h2-2次之。总体来看，卡拉岗组储层较哈尔加乌组好，有效储层沿风化壳和火山机构发育带成带状分布。研究发现，本区油气藏类型包括不整合型油气藏、岩性型油气藏、岩性-构造型油气藏和火山岩内幕型油气藏。油气藏分布规律主要是油气沿三条剥蚀线（P2l、P2t、T2+3）附近高产富集。综合上述研究，对牛圈湖—马北地区石炭系火山岩进行了有利区带预测。更多还原

【Abstract】 In this paper the Niujuanhu-Mabei Carboniferous volcanic comprehensively utilized ofcore observation, lamella analysis, well logging, seismic and reservoir characteristics of theanalytical applications, integrated to complete the effective area volcanic reservoir predictionand volcanic rock reservoir Regularity.The Carboniferous Haerjiawu group is divided into two cycles, four times whileKalagang group is divided into1cycles,4times. In the Niujuanhu-Mabei main in thedevelopment of the intermediate-basic of lava and volcanic elastic rocks two categories(including lava44.91%, volcanic clastics55.09%)34kinds of small classes,the overallperformance of mainly basalts followed by andesite class, there is a part of the basic transitionlithology. Seismic characteristics of Malang depression Carboniferous volcanic reservoirs involcanic facies: overflow facies，eruption facies, volcanic sedimentary facies, volcanicchannel facies, and volcanic extrusive facies. According to the description of16well coreobservation, and28wells of ordinary, casting lamella obtained Malang depression theCarboniferous Kalagang group volcanic rocks of reservoir heterogeneity and strong effect.Thereservoir heterogeneity, reservoir space types, complicated pore structure, secondary effect isstrong characteristics. Including native aperture and secondary pores and sew the twocategories. The study found that the Kalagang group low-permeability reservoirs, porosity，belong the Haerjiawu group belongs to the medium and low porosity low permeabilityreservoirs. Overall the study area of volcanic rock containing oily overall to volcanic brecciaand basalt best, andesite take second place, rough surface rocks, tuff, tuffite worse。Research shows that: Kalagang group weathering place development of the reservoir isinternal sag, volcanic eruption times to C2k1-3, C2k1-2two times of reservoir in mostdevelopment, C2k1-1, C2k1-4two times as C2k1-3overall reflect, C2k1-2; Haerjiawu and thegroup C2h1-2C2h2-1, development of the reservoir is the best, C2h1-1times, C2h2-2. Overall,Kalagang group reservoir is the group with Haerjiawu. Effective reservoir developed alongthe weathering crust and volcanic edifice with a zonal distribution.Study found that, the reservoir type includes not integrated reservoirs, lithologicreservoir type, lithologic reservoir and volcanic rock type structure-the insider type reservoirs.Distribution of oil and gas reservoirs is mainly along the three eroding line (P2l, P2t, T2+3)near the enrichment of high yield. A combination of the research has done on theNiuquanhu-Mabei carboniferous volcanic rocks in the favorable zones on the forecast.更多还原