三塘湖盆地火山岩碱性成岩作用及影响  

Volcanic alkaline diagenesis and its influence on oil and gas reservoirs in Santanghu Basin

作　　者：张景军[1] 田寅[1] 柳成志[1] 于海山[2] 孙玉凯[3] 

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318 [2]大庆油田有限责任公司第八采油厂,黑龙江大庆163318 [3]吐哈油田分公司勘探开发研究院,新疆哈密839009

出　　处：《辽宁工程技术大学学报（自然科学版）》2016年第1期21-26,共6页Journal of Liaoning Technical University (Natural Science)

基　　金：中国石油天然气股份有限公司专题项目(2008B-0101)

摘　　要：为进一步认清三塘湖盆地石炭系火山岩成岩作用及储层形成机理,明确次生孔隙形成及演化规律,通过岩心观察、薄片鉴定和电镜资料的研究分析,从蛇绿岩套、典型碱交代矿物、特殊元素的富集、碳硅泥岩系4个方面证实了火山岩碱性成岩作用的存在.碱性成岩作用的提出可以解决"上硅下碱"的垂向交代序列,岩石红化、碎裂,隐爆角砾岩的发育,风化壳型储层差异性,交代蚀变矿物的异常叠加方式,长石充填孔缝,圈闭有效性及储层范围预测,火山岩储层形成机理等8个方面问题.To further understand the Santanghu basin of Carboniferous volcanic diagenesis and the formation mechanism in volcanic reservoir, clear secondary porosity of formation and evolution, this paper verified the the presence of volcanic Alkaline diagenesis through the analysis of core observation, thin section identification, scanning electron microscopy log date from four aspects（Ophiolite suite, Typical alkali metasomatic minerals, Enrichment of special elements, Silicon carbon shale）. Alkaline diagenetic can solve the eight aspects of problems： the vertical metasomatism sequence of ＂alkali under the silicium＂, the rock rubefication and broken, the cryptoexplosive breccia development, the differences of Weathering crust type reservoir, the abnormal superposition of Metasomatic alteration minerals, the feldspar filling pore, the effective trap and scope of reservoir prediction, and the formation mechanism in volcanic reservoir.

关 键 词：火山岩储层 碱性成岩作用 碱交代 次生孔隙带 三塘湖盆地 

分 类 号：TE122.221[石油与天然气工程—油气勘探]