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塔河南部地区碳酸盐岩油气预测技术研究
李明娟 张永贵 邬兴威 郑和荣
摘 要:塔河南部地区奥陶系存在3套碳酸盐岩储层:中下奥陶统鹰山组、中奥陶统一间房组和上奥陶统良里塔格组.其中,中奥陶统一间房组是塔河南部地区主力产油层段,鹰山组试油以出水为主,良里塔格组因储层物性较差,试油井很少.基于小波变换的频谱分析技术主要反映频率域与流体有关的各种频率参数和能量参数,针对研究区储层的沉积特点,分别探索其油气检测技术.由于高频成分被吸收导致高频能量衰减的衰减梯度属性技术能够较好地反映一间房组、鹰山组油气水分布特征;85%能量对应的频率属性参数对于良里塔格组油气预测有较好地显示.其中,衰减梯度属性技术在一间房组经过70多口井的验证(包括油层、油气层、油水同层、含油水层、油气显示、水层和干层等),可有效排除干层,即储层不发育地区,对于区分油气层和水层,预测效果在70%以上.
关键词:油气检测;一间房组;中奥陶统;碳酸盐岩;塔里木盆地
分类号:TE122.1 文献标识码:A
文章编号:0253-9985(2006)04-0536-06
A study on oil & gas prediction technology in carbonate rocks in south Tahe
Li Mingjuan Zhang Yonggui Wu Xingwei Zheng Herong
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李明娟(1964-),女,博士,地球物理、石油地质
作者单位:李明娟(中国石油化工股份有限公司石油勘探开发研究院,北京,100083)
张永贵(中国石油化工股份有限公司石油勘探开发研究院,北京,100083)
邬兴威(中国石油化工股份有限公司石油勘探开发研究院,北京,100083)
郑和荣(中国石油化工股份有限公司石油勘探开发研究院,北京,100083)
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