石油地球物理勘探2024，Vol.59Issue(3)：598-607,10.DOI:10.13810/j.cnki.issn.1000-7210.2024.03.023
基于主控因素的潜山裂缝储层多尺度地震预测
Seismic multi-scale fracture prediction for buried-hill reservoirs based on main controlling factors
摘要
Abstract
The existing fracture prediction methods for buried-hill reservoirs mostly describe the development char-acteristics of single-scale fracture zones.In order to comprehensively reflect the multi-scale fracture characteristics of Archaeozoic buried-hill reservoirs in M gas field of the Bohai Basin,a multi-scale fracture prediction technique for buried-hill reservoirs based on main controlling factors is proposed.① In view of the favorable area of micro-geomor-phology and weathering control of grooves and ridges,the curvature attribute is used to characterize the groove and ridge morphology on the top surface of the buried hill and predict the macro-scale fracture accumulation bands caused by weathering.② In view of the structural fractures of buried-hill controlled by high and steep faults along the near east-west direction in Yanshanian—Himalayan stages,the distribution of large-scale steep faults is predicted based on Radon transform technique.③Constrained by the direction and angle of regional fault development,the me-dium and small scale micro-fault zones are predicted by using ant tracking attributes.④ The low-frequency and high-frequency information of curvature attribute,Radon transform attribute,and ant tracking attribute are obtained based on the Contourlet transform.The fusion rules of low-frequency and high-frequency information are designed respectively,and the prediction results of fracture zones with three different scales are effectively fused based on the Contourlet transform.The fusion attribute is well matched with FMI imaging logging fracture density and pro-duction test knowledge,which comprehensively reflects the development characteristics of multi-scale fracture zones in the buried hill and guides the design and optimization of development wells in M gas field.It is proved that the seismic multi-scale fracture reservoir prediction technique has practicality.关键词
裂缝预测/多尺度/主控因素/属性融合/Contourlet变换Key words
fracture prediction/multi-scale/main controlling factors/attribute fusion/Contourlet transform分类
天文与地球科学引用本文复制引用
杜昕,范廷恩,马淑芳,樊鹏军,张显文..基于主控因素的潜山裂缝储层多尺度地震预测[J].石油地球物理勘探,2024,59(3):598-607,10.基金项目
本项研究受中国海洋石油有限公司"十四五"重大科技项目"海上低渗及潜山油气田有效开发技术"(KJGG2022-0700)资助. （KJGG2022-0700）
