摘要
海拉尔盆地贝尔断陷构造复杂、断裂发育,储层横向变化非均质性强。针对复杂断块构造成像困难的问题,从逆时深度偏移的原理和实现过程入手,分析了精细速度地质建模及偏移孔径、偏移频率对复杂构造成像效果的影响程度,给出了贝尔断陷贝中复杂构造带三维地震资料逆时叠前深度偏移处理结果。叠前时间偏移与逆时深度偏移资料的对比结果表明,逆时深度偏移技术能够满足构造精细解释和勘探生产的地质需求。
Beier Rift in Hailer Basin is characterized by the complex structures, well-developed faults and strong lateral variations and heterogeneity for the reservoirs. In the light of the imaging issues of the complex faulted blocks, from the viewpoints of the principle of reverse-time depth migration and implementation process, the geolog- ical modeling of the fine velocity, influences of the migration aperture and frequency offset on the complex structural imaging are analyzed, the reverse-time prestack depth migration results of the inverse-time 3D seismic data of Be- izhong complex belts in Beier Rift are presented. The comparison results between the prestack time migration and reverse-time depth migration data show that reverse-time depth migration technique can meet the geological require- ments of the structural fine interpretation and exploration-development.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2015年第6期118-122,共5页
Petroleum Geology & Oilfield Development in Daqing
基金
国家自然科学基金重点项目(41030426)
关键词
贝尔断陷
井控速度建模
复杂断块构造成像
逆时叠前深度偏移
Beier Rift/Fauh Depression
well-controlled velocity modeling
structural imaging of the complex faulted block
reverse-time prestack depth migration
