中拐凸起中基性火山岩油藏流体性质识别方法  

Identification Method for Fluid Characteristics in Intermediate-basic Volcanic Rock Reservoirs in Zhongguai Bulge

作　　者：陈国军 殷晓兰 李静[1] 高衍武 高明 

机构地区：[1]中国石油新疆油田分公司,新疆乌鲁木齐836413 [2]中国石油测井有限公司,陕西西安710000

出　　处：《特种油气藏》2017年第5期131-135,共5页Special Oil & Gas Reservoirs

基　　金：油气勘探国家重大专项"准噶尔前陆盆地油气富集规律与勘探目标优选"(2011ZX05003-005)

摘　　要：针对现有流体性质识别方法在准噶尔盆地中拐凸起石炭系应用的不适用性和不确定性问题,运用视地层水电阻率分布法和核磁差谱-气测烃类比法进行流体判别。研究结果表明,中基性火山岩储层含油性越好,视地层水电阻率分布越靠后,核磁差谱孔隙度越大,烃类特征比大于0.5,研究区油气层测井解释符合率由50%提高至90%。研究成果对识别石炭系油层、指导试油选层有重要意义。In order to solve the problems of inadaptability and inaccuracy of existing fluid identification characteris- tics used in Carboniferous system in Zhongguai bulge i Junggar basin i apparent resistivity of formation water distri- bution method and nuclear magnetic difference spectrometry- gas hydrocarbon ratio method are used for fluid identi- fication. The research results show that better oil-bearing property of intermediate-basic volcanic rock reservoirs means that formation water apparent resistivity distribution has a tendency towards larger resistivity and that the po- rosity on nuclear magnetic difference spectrometry is larger. When hydrocarbon characteristic ratio is larger than 0. 5, coincidence rate of logging interpretation for oil and gas zones in the research area is improved from 50% to 90%. The research results are important to the identification of Carboniferous oil zones and providing guidance for selec- tion of oil testing zones.

关 键 词：石炭系 火山岩 油层 测井识别 准噶尔盆地 

分 类 号：TE349[石油与天然气工程—油气田开发工程]