摘要
顺北地区发育断控储集体,埋深大,储集空间复杂,储集体展布主要受深大型走滑断裂控制,准确刻画断控储集体空间位置、储集体体积和储集体连通性,已成为断溶体油气藏勘探开发的主要难点。依据顺北地区走滑断裂的地质发育模式、断控储集体类型及地震响应特征,通过模型正演及井震结合分析,建立了走滑断裂带及断控储集体地震识别模式,开展储集体敏感地震属性分析,形成了针对断控储集体外部轮廓、内部不同类型储集体的一系列储集体预测技术。在此基础上,应用结构张量属性、增强相干属性、瞬时能量属性、杂乱属性以及相控波阻抗反演技术,对断控储集体边界及内部储集体进行表征,最终形成了顺北地区超深断控储集体地震识别技术。
Fault⁃controlled reservoirs in Shunbei area are deep in buried depth and complex in reservoir space.And their distribution is mainly controlled by deep and large strike⁃slip faults.So it is difficult to accurately describe their spatial position,volume and connectivity during exploration and development of the fault⁃karst reservoirs.According to the geological model of the strike⁃slip faults,and the types and seismic response characteristics of the fault⁃controlled reservoirs,we first establish seismic recognition patterns through forward modeling and well logging⁃seismic analysis for analyzing the sensitive seismic attributes of the reservoirs,and develop a series of technologies for pre⁃dicting the outlines and interiors of the fault⁃controlled reservoirs.Then we characterize the outlines and interiors of the fault⁃controlled reser⁃voirs based on the structural tensor,enhanced coherence,instantaneous energy and clutter attributes and phase⁃controlled wave impedance inversion.Finally,we provide the technology using seismic data to identify the ultra⁃deep fault⁃controlled reservoirs in Shunbei area.
作者
刘军
李伟
龚伟
黄超
LIU Jun;LI Wei;GONG Wei;HUANG Chao(Research Institute of Exploration and Development,Northwest Oilfield Company,Sinopec,Urumqi,Xinjiang 830011,China)
出处
《新疆石油地质》
CAS
CSCD
北大核心
2021年第2期238-245,共8页
Xinjiang Petroleum Geology
基金
国家科技重大专项(2017ZX05005-004)
中国石化科技部项目(P18040,P17057-9)。
关键词
顺北地区
走滑断裂
断溶体油气藏
正演模拟
地震识别模式
地震属性
Shunbei area
strike⁃slip fault
fault⁃karst reservoir
forward modeling
seismic recognition pattern
seismic attribute
