生物礁滩是海相碳酸盐岩地层中一类重要的油气储层，它与围岩相比具有一定的独特性。通过优选地震属性并结合地质综合分析可减少多解性，提高预测精度。本文主要通过使用GeoEast解释系统中的多窗口倾角扫描确定台地边缘位置，明确有利的发育相带；利用相干能量梯度刻画生物礁滩的具体形态。应用该系统对波斯湾盆地碳酸盐岩地层开展的地震属性预测，准确地圈定出生物礁滩的分布位置和范围，大幅度地提高了该区油气勘探的成功率。
Abstract
Different from their surrounding rocks, organic reefs and banks are very important kinds of carbonate reservoir. So to accurately predict organic reef and bank in carbonate rocks will greatly raise drilling success ratio. We discuss in this paper organic reef and bank prediction with approaches provided by GeoEast. In a project of the Middle East, we first use multi-windows dip scanning with geological data to determinate platform margin and favorable farcies belts. Then we depict organic reef and bank shape with coherent energy gradient. Applications in the area show that our approach is very efficient for carbonate reservoir prediction and drilling success rate is greatly increased.
关键词
地震属性 /
生物礁滩 /
GeoEast解释系统 /
碳酸盐岩储层 /
多窗口倾角扫描 /
相干能量梯度
{{custom_keyword}} /
Key words
seismic attributes /
organic reef and bank /
GeoEast /
carbonate reservoir /
multi-windows dip scanning /
coherent energy gradient
{{custom_keyword}} /
中图分类号：
P631
{{custom_clc.code}}
({{custom_clc.text}})
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 郑艳刚,袁美云,徐维胜. 台地边缘生物礁生长规律和控制因素综合研究. 内蒙古石油化工,2009,(6):111-112.
Zheng Yangang,Yuan Meiyun and Xu Weisheng. Study on the growth pattern and the restriction factors of the Reefs platform-margins. Inner Mongolia Petrochemical Industry,2009,(6):111-112.
[2] 黄捍东,曹学虎,罗群. 地震沉积学在生物礁滩预测中的应用——以川东褶皱带建南-龙驹坝地区为例. 石油学报,2011,32(4):629-636.
Huang Handong,Cao Xuehu,Luo Qun. An application of seismic sedimentology in predicting organic reefs and banks: A case study on the Jiannan-Longjuba region of the eastern Sichuan fold belt. Acta Petrolei Sinica,2011,32(4):629-636.
[3] 赵邦六,杜小弟. 生物礁地质特征与地球物理识别. 北京:石油工业出版社,2009.
[4] 郭彤楼. 川东北地区台地边缘礁、滩气藏沉积与储层特征. 地学前缘,2011,18(4):201-211.
Guo Tonglou. The characteristics of sedimentation and reservoirs of reef-beach gas fields in carbonate platform margins,Northeastern Sichuan Basin. Earth Science Frontiers,2011,18(4):201-211.
[5] 张廷山,姜照勇,陈晓慧. 四川盆地古生代生物礁滩特征及发育控制因素. 中国地质,2008,35(5):1017-1030.
Zhang Tingshan,Jiang Zhaoyong,Chen Xiaohui. Characteristics and controlling factors of development of Paleozoic reef-banks in the Sichuan basin. Geology in China,2008,35(5):1017-1030.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
PDF(5042 KB)
