微幅度构造解释及变速成图方法——以泌阳凹陷梨树凹地区为例

英文篇名：Micro-relief structures interpretation and variable-velocity mapping method:case study on Lishuao area of Biyang Depression
中文刊名：石油物探
英文刊名：Geophysical Prospecting for Petroleum
作者：张永华 ; 杨晟 ; 任军战 ; 严移胜 ; 王黎明 ; 赵刚 ; 陈爱琼
英文作者：Zhang Yonghua ; Yang Sheng ; Ren Junzhan ; Yan Yisheng ; Wang Liming ; Zhao Gang ; Chen Aiqiong. Exploration and Development Institute ; Henan Oilfield Company ; Nanyang 473132 ; China
中文关键词：泌阳凹陷梨树凹地区 ; 微幅度构造 ; 隐蔽油气藏 ; 地震精细解释 ; 层位标定 ; 变速成图
英文关键词：Lishuao area of Biyang Depression ; micro-relief structures ; subtle reservoir ; fine seismic data interpretation ; horizon calibration ; variable-velocity mapping
出版日期：2010-03-25
机构：中国石油化工股份有限公司河南油田分公司石油勘探开发研究院;长江大学地球物理与石油资源学院;
年：2010
期：02
出版单位：石油物探

摘要

泌阳凹陷梨树凹地区成藏条件复杂,主要的油藏类型为岩性油气藏和构造-岩性油气藏。岩性油气藏与微幅度构造油气藏规模小,识别和预测难度大。针对隐蔽小断层和微幅度构造,利用高精度三维地震资料,并结合测井资料,通过精细层位标定,采用综合解释技术,对古近系核桃园组目的层进行了精细解释;在此基础上,通过建立精细速度场,采用变速成图方法落实了微幅度构造。对比分析了由变速成图方法得到的结果和钻井结果,表明变速成图方法的绝对误差小,精度高。根据预测结果部署钻探的井在目的层段获得了一定的石油产量。
The pooling conditions are complex in Lishuao area of Biyang Depression.There are lithologic reservoir and structural-lithologic reservoir at the area.Lithologic reservoir and micro-relief structural reservoir are small scale,which are difficult for identification.By using high-precision 3-D seismic data,combined with log data,aiming at subtle small faults and micro-relief structures,the target intervals of Paleogene Hetaoyuan formation were fine interpreted. On this basis,by building detailed velocity field,variable-velocity mapping method was applied to ascertain micro-relief structures. Compared with drilling results,the result shows that the absolute error of variable-velocity mapping method is small,while its accuracy is high.The well deployed by prediction results has obtained some production.

引文

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