利用微测井及VSP资料确定地面地震采集资料的频率
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摘要
零偏或非零偏VSP测井资料具有在表层低降速带下激发和接收,以及地震波在地层中单程传播的特点,它极大地减少了表层低降速带的吸收、地震波在传播路径中的衰减以及地表各种噪音干扰对有效信号的能量和频率的影响。与地面地震采集资料相比,具有更强能量和更宽的频率成分。因此,综合利用微测井、VSP资料和地面地震资料,对地震波在不同埋深目的层中传播时的振幅和频率进行准确分析和研究,以确定地震采集中能获得的最高频率,这样能更合理地指导野外地震采集试验及评价试验资料效果。
Because zero-or nonzero-offset VSP data has ability to reduce influence of low velocity layer,shorten propagating path of seismic wave and lessen disturb of surface noise,it can remedy some defects of surface data.After influence of disturb from surface is eliminated,frequency and amplitude of seismic wave which transmitted exploration target layer in different depth can be determined by VSP data.By comprehensive utilization of logging,VSP data and surface seismic data,we can get the highest frequency of seismic acquisition.So it can guide the test of seismic acquisition and evaluation test data.
Because zero-or nonzero-offset VSP data has ability to reduce influence of low velocity layer,shorten propagating path of seismic wave and lessen disturb of surface noise,it can remedy some defects of surface data.After influence of disturb from surface is eliminated,frequency and amplitude of seismic wave which transmitted exploration target layer in different depth can be determined by VSP data.By comprehensive utilization of logging,VSP data and surface seismic data,we can get the highest frequency of seismic acquisition.So it can guide the test of seismic acquisition and evaluation test data.
引文
[1]Li Qingzhong.The Way of Precise Exploration[M].Beijing:Petroleum Industry Press,1993.[李庆忠.走向精确勘探的道路[M].北京:石油工业出版社,1993.]
[2]Zhu Guangming.Technique of Vertica Seismic Profile[M].Bei-jing:Petroleum Industry Press,1988.[朱光明.垂直地震剖面方法[M].北京:石油工业出版社,1988.]
[3]Wang Hongyu,Zhao Quanguo.Application of absorption analysistechnique for instantaneous wavelet in complex area:A case inShanle area in Tuha basin[J].Natural Gas Geoscience,2007,18(2):289-292.[王宏语,赵全国.瞬时子波吸收分析技术在复杂地区的应用———以吐哈盆地鄯勒地区为例[J].天然气地球科学,2007,18(2):289-292.]
[4]Yang Zhanlong,Chen Qilin,Sha Xuemei,et al.Reclassificationresearch of seismic waveform classification[J].Natural GasGeoscience,2008,19(3):377-380.[杨占龙,陈启林,沙雪梅,等.关于地震波形分类的再分类研究[J].天然气地球科学,2008,19(3):377-380.]
[5]Song Changyu,Pei Zhenglin.Numerical simulation of viscoe-lastic wavefield for crosshole seismic exploration[J].Geophysi-cal Prospecting for Petroleum,2006,45(5):508-513.[宋常瑜,裴正林.井间地震粘弹性波场特征的数值模拟研究[J].石油物探,2006,45(5):508-513.]
[6]Zheng Hongming,Xue Weiping,Jiang Lin,et al.Compensationmethod of seismic wave absorption and attenuation in viscoe-lastic media[J].Xinjiang Petroleum Geology,2006,27(5):556-558.[郑鸿明,薛为平,蒋琳,等.粘弹性介质中地震波的吸收衰减补偿方法[J].新疆石油地质,2006:27(5):556-558.]
[7]Liao Chengjun.Application of VSP technology in developmentof complex fault-block reservoir in Jin612[J].Natural Gas Ge-oscience,2005,16(1):117-122.[廖成君.VSP技术在锦612复杂断块油藏开发部署研究中的应用[J].天然气地球科学,2005,16(1):117-122.]
[2]Zhu Guangming.Technique of Vertica Seismic Profile[M].Bei-jing:Petroleum Industry Press,1988.[朱光明.垂直地震剖面方法[M].北京:石油工业出版社,1988.]
[3]Wang Hongyu,Zhao Quanguo.Application of absorption analysistechnique for instantaneous wavelet in complex area:A case inShanle area in Tuha basin[J].Natural Gas Geoscience,2007,18(2):289-292.[王宏语,赵全国.瞬时子波吸收分析技术在复杂地区的应用———以吐哈盆地鄯勒地区为例[J].天然气地球科学,2007,18(2):289-292.]
[4]Yang Zhanlong,Chen Qilin,Sha Xuemei,et al.Reclassificationresearch of seismic waveform classification[J].Natural GasGeoscience,2008,19(3):377-380.[杨占龙,陈启林,沙雪梅,等.关于地震波形分类的再分类研究[J].天然气地球科学,2008,19(3):377-380.]
[5]Song Changyu,Pei Zhenglin.Numerical simulation of viscoe-lastic wavefield for crosshole seismic exploration[J].Geophysi-cal Prospecting for Petroleum,2006,45(5):508-513.[宋常瑜,裴正林.井间地震粘弹性波场特征的数值模拟研究[J].石油物探,2006,45(5):508-513.]
[6]Zheng Hongming,Xue Weiping,Jiang Lin,et al.Compensationmethod of seismic wave absorption and attenuation in viscoe-lastic media[J].Xinjiang Petroleum Geology,2006,27(5):556-558.[郑鸿明,薛为平,蒋琳,等.粘弹性介质中地震波的吸收衰减补偿方法[J].新疆石油地质,2006:27(5):556-558.]
[7]Liao Chengjun.Application of VSP technology in developmentof complex fault-block reservoir in Jin612[J].Natural Gas Ge-oscience,2005,16(1):117-122.[廖成君.VSP技术在锦612复杂断块油藏开发部署研究中的应用[J].天然气地球科学,2005,16(1):117-122.]