西部山前带观测系统设计方法
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摘要
山前复杂构造带是西部新区油气勘探的主攻领域之一,西部山前带由于其特殊的表层地震地质条件和深层复杂地质结构,造成静校正问题突出、地震波场复杂、地震资料信噪比低。针对这些难点提出了西部山前带观测系统设计方法,即基于真实地表的综合模型和叠前成像效果、结合CRP分析技术的观测系统设计技术,利用该技术在哈山西三维区块进行了观测系统优化设计,获得了较好的资料效果。
The complicated piedmont belt is the main field for oil and gas exploration in new exploration regions of West China.The particular surface geological conditions and complicated deep geological structures of these regions cause outstanding problems such as static correction,complex seismic wave field and low SNR seismic data.Aimed at solving these difficulties,this paper puts forward the design of seismic geometry in western piedmont belt,which is based on the comprehensive real surface model with pre-stack imaging effect in combination with the design technology for the observation system of CRP analysis technology.This technology was used in Hashan 3D block for optimization design of the observation system,with fairly good results obtained.
The complicated piedmont belt is the main field for oil and gas exploration in new exploration regions of West China.The particular surface geological conditions and complicated deep geological structures of these regions cause outstanding problems such as static correction,complex seismic wave field and low SNR seismic data.Aimed at solving these difficulties,this paper puts forward the design of seismic geometry in western piedmont belt,which is based on the comprehensive real surface model with pre-stack imaging effect in combination with the design technology for the observation system of CRP analysis technology.This technology was used in Hashan 3D block for optimization design of the observation system,with fairly good results obtained.
引文
[1]赵军国,宋玉龙,魏福吉,等.山前带地震采集技术研究—新疆和田桑株地区采集实例[J].石油物探,2003,42(2):224-228,236
[2]王咸彬.西部复杂山地地震勘探关键技术应用研究[D].成都:成都理工大学,2011
[3]姚江,徐雷良.基于叠前偏移的观测系统优化设计及应用效果[J].石油物探,2011,50(6):589-594
[4]秦广胜,蔡其新,汪功怀,等.基于叠前成像的三维地震观测系统设计[J].地球物理学进展,2010,25(1):238-248
[5]阎世信,谢文导.三维地震观测方式应用的几点认识[J].石油地球物理勘探,1998,33(6):787-795
[6]狄帮让,王长春,顾培成,等.三维观测系统优化设计的双聚焦方法[J].石油地球物理勘探,2003,38(5):463-469
[7]赵殿栋,郭建,王咸彬,等.基于模型面向目标的观测系统优化设计技术[J].中国西部油气地质,2006,2(2):119-122
[8]董良国,吴晓丰,唐海忠,等.逆掩推覆构造的地震波照明与观测系统优化[J].石油物探,2006,45(1):40-47
[9]李万万.基于波动方程正演的地震观测系统设计[J].石油地球物理勘探,2008,43(2):134-141
[10]朱金平,董国良,程玖兵.基于地震照明、面向勘探目标的三维观测系统优化设计[J].石油地球物理勘探,2011,46(3):339-348
[2]王咸彬.西部复杂山地地震勘探关键技术应用研究[D].成都:成都理工大学,2011
[3]姚江,徐雷良.基于叠前偏移的观测系统优化设计及应用效果[J].石油物探,2011,50(6):589-594
[4]秦广胜,蔡其新,汪功怀,等.基于叠前成像的三维地震观测系统设计[J].地球物理学进展,2010,25(1):238-248
[5]阎世信,谢文导.三维地震观测方式应用的几点认识[J].石油地球物理勘探,1998,33(6):787-795
[6]狄帮让,王长春,顾培成,等.三维观测系统优化设计的双聚焦方法[J].石油地球物理勘探,2003,38(5):463-469
[7]赵殿栋,郭建,王咸彬,等.基于模型面向目标的观测系统优化设计技术[J].中国西部油气地质,2006,2(2):119-122
[8]董良国,吴晓丰,唐海忠,等.逆掩推覆构造的地震波照明与观测系统优化[J].石油物探,2006,45(1):40-47
[9]李万万.基于波动方程正演的地震观测系统设计[J].石油地球物理勘探,2008,43(2):134-141
[10]朱金平,董国良,程玖兵.基于地震照明、面向勘探目标的三维观测系统优化设计[J].石油地球物理勘探,2011,46(3):339-348
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