罗家单点高密度三维地震与效果
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摘要
罗家地区位于济阳坳陷沾化凹陷西部,该区三维地震勘探始于20世纪90年代,先后实施了常规三维地震、二次采集三维地震、高精度三维地震,发现了中生界-东营组6套含油层系,属于中等勘探程度地区.现有地震资料虽然发现了多个构造为主的油气藏,但是难以满足勘探开发中后期红层、滩坝、浊积岩等储层描述和圈闭刻画的需求.2017年,在罗家地区部署实施了高密度地震,使用陆用压电单点检波器接收,采用小面元、宽方位、高覆盖的观测方式,炮道密度达到了357万道/km~2.单点接收地震资料具有保真度高、波场信息丰富、宽频带、宽方位的特点,针对单点高密度地震资料特点,应用相对保真的宽频宽方位处理技术,成像地震剖面纵、横向分辨率和保真度有了较大提高,对推动中国东部老油田开展三次地震具有积极的借鉴意义.
Luojia area is a medium exploration block, located in the west of Zhanhua sag in Jiyang depression. Since the 90 s of the 20 th century, seismic exploration in this area began has developed from the conventional 3 D seismic and the secondary 3 D seismic to the high-precision seismic. Although a number of structural reservoirs have been discovered based on the acquired seismic data,such as 6 sets of oil-bearing strata of the Mesozoic-Dongying Formation, it is difficult to meet the requirements of reservoir description and trap characterization in the middle and later stage of exploration and development, such as red beds, beach-bar deposits and turbidities. In 2017, high-density seismic data acquisition was deployed in Luojia area by single-point receiving technique with land piezoelectric detectors. This 3 D seismic used small-bin-size, wide-azimuth, and high-coverage observations, with a density of 3570000 traces per km~2 and the new seismic data has characteristics of high fidelity, rich wave field information, wide frequency range and wide azimuth. According to the characteristics of single-point high-density seismic data, the vertical and horizontal resolution and fidelity of the imaging seismic section have been greatly improved by using the wide-bandwidth azimuth processing technology of relative fidelity. Single-point high-density seismic has promising effect on the third 3 D seismic of oil fields in the eastern China.
Luojia area is a medium exploration block, located in the west of Zhanhua sag in Jiyang depression. Since the 90 s of the 20 th century, seismic exploration in this area began has developed from the conventional 3 D seismic and the secondary 3 D seismic to the high-precision seismic. Although a number of structural reservoirs have been discovered based on the acquired seismic data,such as 6 sets of oil-bearing strata of the Mesozoic-Dongying Formation, it is difficult to meet the requirements of reservoir description and trap characterization in the middle and later stage of exploration and development, such as red beds, beach-bar deposits and turbidities. In 2017, high-density seismic data acquisition was deployed in Luojia area by single-point receiving technique with land piezoelectric detectors. This 3 D seismic used small-bin-size, wide-azimuth, and high-coverage observations, with a density of 3570000 traces per km~2 and the new seismic data has characteristics of high fidelity, rich wave field information, wide frequency range and wide azimuth. According to the characteristics of single-point high-density seismic data, the vertical and horizontal resolution and fidelity of the imaging seismic section have been greatly improved by using the wide-bandwidth azimuth processing technology of relative fidelity. Single-point high-density seismic has promising effect on the third 3 D seismic of oil fields in the eastern China.
引文
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Zhong B J,Yang G X,Wang H F,et al.2013.The information-reconstructing and denoising methodfor data collected with Single-point and high-density [J].Progress in Geophysics (in Chinese),28(1):345-353,doi:10.6038/pg20130138.
白旭明,李海东,陈敬国,等.2015.可控震源单台高密度采集技术及应用效果[J].中国石油勘探,20(6):39- 43.
蔡希源,韩文功,于静,等.2011.罗家高密度三维地震勘探实例[J].石油地球物理勘探,46(2):182-186.
丁伟,胡立新,何京国,等.2014.可控震源高效地震采集技术研究及应用[J].石油物探,53(3):338-343.
郭念民,陈猛,崔永福,等.2016.碳酸盐岩储层单点高密度采集三维地震勘探实例[J].石油物探,55(6):771-780,824.
黄永平,刘飞,闫杰,等.2013.准噶尔盆地腹部沙漠区可控震源高密度采集试验[J].新疆石油地质,34(1):91-94.
刘欣欣,吴国忱,梁锴.2009.单点高密度地震勘探技术研究综述[J].地球物理学进展,24(4):1354-1366,doi:10.3969/j.issn.1004-2903.2009.04.025.
尚新民,朱军,关键,等.2017.陆用压电单点检波器研发与应用[J].地球物理学进展,32(6):2655-2662,doi:6038/pg20170649.
王海波,刘炎坤,邹启伟,等.2016.辽河坳陷雷家致密油区单点高密度三维地震采集技术研究[J].地球物理学进展,31(2):0782- 0787,doi:10.6038/pg20160238.
王西文,赵邦六,吕焕通,等.2010.地震资料采集方式对地震处理的影响研究[J].地球物理学进展,25(3):840-852,doi:10.3969/j.issn.1004-2903.2010.03.016.
张怀.2014.UniQ地震采集系统在四川盆地的应用[J].物探装备,24(4):223-226.
仲伯军,杨贵祥,王海峰,等.2013.单点高密度地震资料的信息重构去噪处理方法[J].地球物理学进展,28(1):345-353,doi:10.6038/pg20130138.
Cai X Y,Han W G,Yu J,et al.2011.A high density 3D seismic acquisition case in Luojia area [J].OGP.(in Chinese),46(2):182-186.
Ding W,Hu L X,He J G et al.2014.The research on vibrator high efficient simulation technology and its application [J].Geophysical Prospecting for Petroleum (in Chinese),53(3):338-343.
Guo N M,Chen M,Cui Y F,et al.2016.The application of single-point high-density seismic acquisition for carbonate reservoir 3D seismic exploration [J].Geophysical Prospecting For Petroleum (in Chinese),55(6):771-780,824.
Huang Y P,Liu F,Yan J,et al.2013.High-density vibroseis acquisition test for desert area in Hinterland of Junggar basin [J].Xinjiang Petroleum Geology (in Chinese),34(1):91-94.
Liu X X,Wu G C,Liang K.2009.The review of point-source/point-receiver high density seismic exploration technology [J].Progress in Geophysics (in Chinese),24(4):1354-1366,doi:10.3969/j.issn.1004-2903.2009.04.025.
Shang X M,Zhu J,Guan J,et al.2017.Development and application of single-point land piezoelectric sensor [J].Progress in Geophysics (in Chinese),32(6):2655-2662,doi:6038/pg20170649.
Wang H B,Liu K K,Zou Q W,et al.2016.Single point high density 3D seismic acquisition technical studies in Leijia tight sandstone oil reservoir of Liaohe depression [J].Progress in Geophysics (in Chinese),31(2):0782- 0787,doi:10.6038/pg20160238.
Wang X W,Zhao B L,Lv H T,et al.2010.Study of seismic data processing method affected by method of acquisition [J].Progress in Geophysics (in Chinese),25(3):840-852,doi:10.3969/j.issn.1004-2903.2010.03.016.
Zhang H.2014.Application of UniQ seismic acquisition system in Sichuan Basin [J].Equipment for Geophysical Prospecting (in Chinese),24(4):223-226.
Zhong B J,Yang G X,Wang H F,et al.2013.The information-reconstructing and denoising methodfor data collected with Single-point and high-density [J].Progress in Geophysics (in Chinese),28(1):345-353,doi:10.6038/pg20130138.
白旭明,李海东,陈敬国,等.2015.可控震源单台高密度采集技术及应用效果[J].中国石油勘探,20(6):39- 43.
蔡希源,韩文功,于静,等.2011.罗家高密度三维地震勘探实例[J].石油地球物理勘探,46(2):182-186.
丁伟,胡立新,何京国,等.2014.可控震源高效地震采集技术研究及应用[J].石油物探,53(3):338-343.
郭念民,陈猛,崔永福,等.2016.碳酸盐岩储层单点高密度采集三维地震勘探实例[J].石油物探,55(6):771-780,824.
黄永平,刘飞,闫杰,等.2013.准噶尔盆地腹部沙漠区可控震源高密度采集试验[J].新疆石油地质,34(1):91-94.
刘欣欣,吴国忱,梁锴.2009.单点高密度地震勘探技术研究综述[J].地球物理学进展,24(4):1354-1366,doi:10.3969/j.issn.1004-2903.2009.04.025.
尚新民,朱军,关键,等.2017.陆用压电单点检波器研发与应用[J].地球物理学进展,32(6):2655-2662,doi:6038/pg20170649.
王海波,刘炎坤,邹启伟,等.2016.辽河坳陷雷家致密油区单点高密度三维地震采集技术研究[J].地球物理学进展,31(2):0782- 0787,doi:10.6038/pg20160238.
王西文,赵邦六,吕焕通,等.2010.地震资料采集方式对地震处理的影响研究[J].地球物理学进展,25(3):840-852,doi:10.3969/j.issn.1004-2903.2010.03.016.
张怀.2014.UniQ地震采集系统在四川盆地的应用[J].物探装备,24(4):223-226.
仲伯军,杨贵祥,王海峰,等.2013.单点高密度地震资料的信息重构去噪处理方法[J].地球物理学进展,28(1):345-353,doi:10.6038/pg20130138.