荣兴屯地区中生界火山岩储层特征及其
地球物理响应研究

2007年 14卷 第02期
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Study on Mesozoic volcanic reservoir character istics
and geophysical re sponses in Rongxingtun area, Liaohe
Basin
1 中国矿业大学资源与地球科学系, 北京100083; 2 辽河油田分公司勘探开发研究院, 辽宁盘锦124010
⒈ Depar tment of R esources and
G eosc ience, China U niversity ofM ining and Technology,
Beijing 100083; 2. Explorat ion and D eve lopment
Institute, Liaohe O ilf ie ld Company, CNPC, Panjin
124010, China
综合应用地震、录井、测井及分析化验等方法, 对荣兴屯地区中生界火山岩储层
的岩性、岩相、储集空间、物性及其地球物理响应进行了研究。结果表明, 该区火山岩可分为安
山岩、安山玢岩、凝灰岩和辉绿岩, 其岩相主要为溢流相。储集空间既有原生孔缝, 又有次生孔
缝, 以次生孔缝为主, 属于低孔特低渗储层。影响储层物性的因素有火山岩相、风化壳、次生蚀
变、火山岩岩性、构造运动等。通过对该区中生界火山岩的测井、地震相、振幅、频率、波阻抗等
地球物理响应研究, 来进行岩性识别和储层预测, 进而指导勘探部署。
App lication o f sesm ic, logg ing and chem ica l exam ina tion
toM esozo ic vo lcanic rese rvo ir in Rongx ingtun area results in
the identifica tion of vo lcan ic rocks sorts, which m a in ly is
andesite, tuff and d iabase and character ized ov erflow
litho fac ies. Rese rvo ir spaces inc lude the pr im ary pore,
secondary pore, and mostly are secondary structura l fractu res
wh ich is the low porosity and very low perm eab ility. E ffected
factors are the volcan ic lithofac ies, w ea ther ing c rust, secondary
alteration, vo lcan ic rock and tectog enesis. The study of
geophysica l response, such as logg ing response, se ism ic
fac ies, amp litude, frequency and wave im pedance, is helpfu l
for recogn izing and pred icting vo lcan ic rock
辽河盆地 荣兴屯地区 中生界 火山岩 储层 岩相 地球物理响应;
L iaohe Basin, rongx ing tun area, M eso zo ic,
vo lcan ic rock, reservo ir, litho facies, geophysical response;