基于压缩感知技术的去除强屏蔽研究及应用
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摘要
渤海湾盆地济阳凹陷渤南地区砂砾岩致密储层受膏岩高速体和自身复杂的叠置关系以及非均质性等影响,导致该类储层具有强屏蔽弱反射的响应特征。常规储层预测方法难以满足储层精细预测的需求,地震识别难,储层地震精细刻画难。通过应用"钉型"子波+压缩感知技术有效地去除了强反射背景,突出了目的层段砂岩的地震响应特征,有效提高了砂岩的预测能力。该研究方法可为下一步勘探部署提供了有力支撑。
The tight sandy conglomerate reservoirs in Bonan area of Jiyang Sag,Bohai Bay Basin are affected by gypsum rock,complex superimposition relationship and heterogeneity,which results in shield interface in the seismic signal. Conventional reservoir prediction methods can not meet the needs of accurate reservoir prediction,seismic identification is difficult and the reservoir is also difficult to describe. The nail-type wavelet and compressed sensing technology were used to remove the strong shield interface,highlight the seismic response characteristics of sandstone in the target layer,effectively improve the prediction ability of sandstone. This method can provide strong support for the next exploration deployment.
The tight sandy conglomerate reservoirs in Bonan area of Jiyang Sag,Bohai Bay Basin are affected by gypsum rock,complex superimposition relationship and heterogeneity,which results in shield interface in the seismic signal. Conventional reservoir prediction methods can not meet the needs of accurate reservoir prediction,seismic identification is difficult and the reservoir is also difficult to describe. The nail-type wavelet and compressed sensing technology were used to remove the strong shield interface,highlight the seismic response characteristics of sandstone in the target layer,effectively improve the prediction ability of sandstone. This method can provide strong support for the next exploration deployment.
引文
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[5]张繁昌,李传辉,印兴耀,等.基于动态匹配子波库的地震数据快速匹配追踪.石油地球物理勘探,2010,45(5):667-673.ZHANG F C,LI C H,YIN X Y,et al.Seismic data fast matching pursuit based on dynamic matching wavelet library.Oil Geophysical Prospecting,2010,45(5):667-673.
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[8]张鹏飞,陈世悦,张明军,等.渤海湾盆地沾化凹陷古近系沙二上亚段砂岩储层成岩相研究.现代地质,2007,21(增刊1):58-62.ZHANG P F,CHEN S Y,ZHANG M J,et al.The study of diagenetic facies of sandstone reservoirs of upper Es2of Paleogene in Zhanhua Sag,Bohai Bay Basin.Geoscience,2007,21(Suppl1):58-62.
[9]经雅丽.济阳坳陷青东凹陷沙河街组储层特征.石油实验地质,2013,35(3):280-284.JING Y L.Reservoir characteristics of Shahejie Formation in Qingdong Sag,Jiyang Depression.Petroleum Geology&Experiment,2013,35(3):280-284.
[10]康仁华,刘魁元,赵翠霞,等.济阳坳陷渤南洼陷古近系沙河街组沉积相.古地理学报,2002,4(4):19-29.KANG R H,LIU K Y,ZHAO C X,et al.Sedimentary facies of Shahejie Formation of Paleogene in Bonan Basin of Jiyang.Journal of Palaeogeography,2002,4(4):19-29.
[11]孟涛,刘鹏,邱隆伟,等.咸化湖盆深部优质储集层形成机制与分布规律:以渤海湾盆地济阳坳陷渤南洼陷古近系沙河街组四段上亚段为例.石油勘探与开发,2017,44(6):896-906.MENG T,LIU P,QIU L W,et al.Formation and distribution of the high quality reservoirs in a deep saline lacustrine basin:a case study from the upper part of the 4th member of Paleogene Shahejie Formation in Bonan Sag,Jiyang Depression,Bohai Bay Basin,East China.Petroleum Exploration and Development,2017,44(6):896-906.
[12]蒋立,谭佳,张绪建.同态反褶积的子波稳定性方法研究.石油物探,2012,51(3):239-243.JIANG L,TAN J,ZHANG X J.Study on wavelet stability of homomorphic deconvolution.Geophysical Prospecting for Petroleum,2012,51(3):239-243.
[13]BECK A,TEBOULLE M.A fast iterative shrinkage-thresholding algorithm for linear inverse problems.SIAM Journal on Imaging Sciences,2009,2(1):183-202.
[14]宋维琪,张宇,吴彩端,等.多道联合压缩感知弱小反射地震信号提取处理方法.地球物理学报,2017,60(8):3238-3245.SONG W Q,ZHANG Y,WU C D,et al.The method of weak seismic reflection signal processing and extracting based on multitrace joint compressed sensing.Chinese Journal of Geophysics,2017,60(8):3238-3245.
[15]杨露,杨锋,许吉俊.莱州湾凹陷沙河街组地层特征及储盖组合分析.化工管理,2018(13):220-221.YANG L,YANG F,XU J J.Analysis of formation characteristics and reservoir and cap combination of Shahejie Formation in Laizhou Bay Depression.Chemical Enterprise Management,2018(13):220-221.
[16]张健,文艺,吴家洋,等.渤海中部古近系沙河街组有利砾岩类储层特征.沉积与特提斯地质,2018,38(1):89-95.ZHANG J,WEN Y,WU J Y,et al.Characteristics of favorable conglomerate reservoir in Shahejie Formation of Paleogene in central Bohai Sea.Sedimentary Geology and Tethyan Geology,2018,38(1):89-95.
[17]宋洪亮,李云鹏,刘宗宾,等.辫状河三角洲前缘亚相储层分布模式分析及应用:以JX油田东块沙河街组为例.油气地质与采收率,2018,25(1):37-42.SONG H L,LI Y P,LIU Z B,et al.Understanding and application of reservoir pattern in braided river delta front:a case study of the Shahejie Formation in the east block of JX Oilfield.Petroleum Geology and Recovery Efficiency,2018,25(1):37-42.
[18]朱建敏,钱赓,王少鹏,等.相带约束复杂薄互沉积储层预测方法与实践:以垦利10油田沙河街组储层为例.西安石油大学学报(自然科学版),2018,33(4):36-43.ZHU J M,QIAN G,WANG S P,et al.Prediction technique and practice of complicated thin interbedded reservoirs constrained by sedimentary facies in Bohai area:a case study of Shahejie Formation in Kenli 10 Oilfield.Journal of Xi'an Shiyou University(Natural Science Edition),2018,33(4):36-43.
[19]刘化清,苏明军,倪长宽,等.薄砂体预测的地震沉积学研究方法.岩性油气藏,2018,30(2):1-11.LIU H Q,SU M J,NI C K,et al.Thin bed prediction from interbedded background:Revised seismic sedimentological method.Lithologic Reservoirs,2018,30(2):1-11.
[20]陈骥,徐凤强,刘超,等.蠡县斜坡沙三上亚段与沙一下亚段沉积特征及有利储层分布.岩性油气藏,2016,28(5):91-98.CHEN J,XU F Q,LIU C,et al Sedimentary characteristics and favorable reservoir distribution of the upper submember of the third member and the lower submember of the first member of Shahejie Formation in Lixian Slope.Lithologic Reservoirs,2016,28(5):91-98.
[21]李岩.扇三角洲前缘储层构型及其控油作用:以赵凹油田赵凹区块核桃园组三段Ⅳ31厚油层为例.岩性油气藏,2017,29(3):132-139.LI Y.Reservoir architecture of fan delta front and its oil-control models:a case of Eh3Ⅳ31reservoir in Zhaowa block of Zhaowa Oilfield,Biyang Depression.Lithologic Reservoirs,2017,29(3):132-139.
[22]唐武,王英民,仲米虹,等.隆后坳陷区三角洲沉积特征及演化模式:以桑塔木地区为例.岩性油气藏,2016,28(3):34-41.TANG W,WANG Y M,ZHONG M H,et al.Sedimentary characteristics and evolution model of delta in backbulge zone:a case study in Sangtamu area.Lithologic Reservoirs,2016,28(3):34-41.
[2]邓志文,赵贤正,陈雨红,等.自适应波形多道匹配追踪断层识别技术.石油地球物理勘探,2017,52(3):532-537.DENG Z W,ZHAO X Z,CHEN Y H,et al.Fault identification based on multichannel adaptive waveforms matching pursuit.Oil Geophysical Prospecting,2017,52(3):532-537.
[3]顾海燕.利用快速匹配追踪子波分解技术识别强反射下砂岩储层.长江大学学报(自然版),2016,13(20):40-44.GU H Y.Application of fast matching pursuit wavelet decomposition technique in identifying sandstone reservoirs under strong reflection.Journal of Yangtze University(Natural Science Edition),2016,13(20):40-44.
[4]WANG Y H.Seismic time-frequency spectral decomposition by matching pursuit.Geophysics,2007,72(1):13-20.
[5]张繁昌,李传辉,印兴耀,等.基于动态匹配子波库的地震数据快速匹配追踪.石油地球物理勘探,2010,45(5):667-673.ZHANG F C,LI C H,YIN X Y,et al.Seismic data fast matching pursuit based on dynamic matching wavelet library.Oil Geophysical Prospecting,2010,45(5):667-673.
[6]刘小龙,刘天佑,王华,等.基于匹配追踪算法的频谱成像技术及其应用.石油地球物理勘探,2010,45(6):850-855.LIU X L,LIU T Y,WANG H,et al.Spectrum imaging technique and its application based on matching pursuit algorithm.Oil Geophysical Prospecting,2010,45(6):850-855.
[7]黄跃,许多,文学康,等.多子波分解与重构中子波的优选.石油物探,2013,52(1):17-22.HUANG Y,XU D,WEN X K,et al.Optimization of wavelets in multi-wavelet decomposition and reconstruction method.Geophysical Prospecting for Petroleum,2013,52(1):17-22.
[8]张鹏飞,陈世悦,张明军,等.渤海湾盆地沾化凹陷古近系沙二上亚段砂岩储层成岩相研究.现代地质,2007,21(增刊1):58-62.ZHANG P F,CHEN S Y,ZHANG M J,et al.The study of diagenetic facies of sandstone reservoirs of upper Es2of Paleogene in Zhanhua Sag,Bohai Bay Basin.Geoscience,2007,21(Suppl1):58-62.
[9]经雅丽.济阳坳陷青东凹陷沙河街组储层特征.石油实验地质,2013,35(3):280-284.JING Y L.Reservoir characteristics of Shahejie Formation in Qingdong Sag,Jiyang Depression.Petroleum Geology&Experiment,2013,35(3):280-284.
[10]康仁华,刘魁元,赵翠霞,等.济阳坳陷渤南洼陷古近系沙河街组沉积相.古地理学报,2002,4(4):19-29.KANG R H,LIU K Y,ZHAO C X,et al.Sedimentary facies of Shahejie Formation of Paleogene in Bonan Basin of Jiyang.Journal of Palaeogeography,2002,4(4):19-29.
[11]孟涛,刘鹏,邱隆伟,等.咸化湖盆深部优质储集层形成机制与分布规律:以渤海湾盆地济阳坳陷渤南洼陷古近系沙河街组四段上亚段为例.石油勘探与开发,2017,44(6):896-906.MENG T,LIU P,QIU L W,et al.Formation and distribution of the high quality reservoirs in a deep saline lacustrine basin:a case study from the upper part of the 4th member of Paleogene Shahejie Formation in Bonan Sag,Jiyang Depression,Bohai Bay Basin,East China.Petroleum Exploration and Development,2017,44(6):896-906.
[12]蒋立,谭佳,张绪建.同态反褶积的子波稳定性方法研究.石油物探,2012,51(3):239-243.JIANG L,TAN J,ZHANG X J.Study on wavelet stability of homomorphic deconvolution.Geophysical Prospecting for Petroleum,2012,51(3):239-243.
[13]BECK A,TEBOULLE M.A fast iterative shrinkage-thresholding algorithm for linear inverse problems.SIAM Journal on Imaging Sciences,2009,2(1):183-202.
[14]宋维琪,张宇,吴彩端,等.多道联合压缩感知弱小反射地震信号提取处理方法.地球物理学报,2017,60(8):3238-3245.SONG W Q,ZHANG Y,WU C D,et al.The method of weak seismic reflection signal processing and extracting based on multitrace joint compressed sensing.Chinese Journal of Geophysics,2017,60(8):3238-3245.
[15]杨露,杨锋,许吉俊.莱州湾凹陷沙河街组地层特征及储盖组合分析.化工管理,2018(13):220-221.YANG L,YANG F,XU J J.Analysis of formation characteristics and reservoir and cap combination of Shahejie Formation in Laizhou Bay Depression.Chemical Enterprise Management,2018(13):220-221.
[16]张健,文艺,吴家洋,等.渤海中部古近系沙河街组有利砾岩类储层特征.沉积与特提斯地质,2018,38(1):89-95.ZHANG J,WEN Y,WU J Y,et al.Characteristics of favorable conglomerate reservoir in Shahejie Formation of Paleogene in central Bohai Sea.Sedimentary Geology and Tethyan Geology,2018,38(1):89-95.
[17]宋洪亮,李云鹏,刘宗宾,等.辫状河三角洲前缘亚相储层分布模式分析及应用:以JX油田东块沙河街组为例.油气地质与采收率,2018,25(1):37-42.SONG H L,LI Y P,LIU Z B,et al.Understanding and application of reservoir pattern in braided river delta front:a case study of the Shahejie Formation in the east block of JX Oilfield.Petroleum Geology and Recovery Efficiency,2018,25(1):37-42.
[18]朱建敏,钱赓,王少鹏,等.相带约束复杂薄互沉积储层预测方法与实践:以垦利10油田沙河街组储层为例.西安石油大学学报(自然科学版),2018,33(4):36-43.ZHU J M,QIAN G,WANG S P,et al.Prediction technique and practice of complicated thin interbedded reservoirs constrained by sedimentary facies in Bohai area:a case study of Shahejie Formation in Kenli 10 Oilfield.Journal of Xi'an Shiyou University(Natural Science Edition),2018,33(4):36-43.
[19]刘化清,苏明军,倪长宽,等.薄砂体预测的地震沉积学研究方法.岩性油气藏,2018,30(2):1-11.LIU H Q,SU M J,NI C K,et al.Thin bed prediction from interbedded background:Revised seismic sedimentological method.Lithologic Reservoirs,2018,30(2):1-11.
[20]陈骥,徐凤强,刘超,等.蠡县斜坡沙三上亚段与沙一下亚段沉积特征及有利储层分布.岩性油气藏,2016,28(5):91-98.CHEN J,XU F Q,LIU C,et al Sedimentary characteristics and favorable reservoir distribution of the upper submember of the third member and the lower submember of the first member of Shahejie Formation in Lixian Slope.Lithologic Reservoirs,2016,28(5):91-98.
[21]李岩.扇三角洲前缘储层构型及其控油作用:以赵凹油田赵凹区块核桃园组三段Ⅳ31厚油层为例.岩性油气藏,2017,29(3):132-139.LI Y.Reservoir architecture of fan delta front and its oil-control models:a case of Eh3Ⅳ31reservoir in Zhaowa block of Zhaowa Oilfield,Biyang Depression.Lithologic Reservoirs,2017,29(3):132-139.
[22]唐武,王英民,仲米虹,等.隆后坳陷区三角洲沉积特征及演化模式:以桑塔木地区为例.岩性油气藏,2016,28(3):34-41.TANG W,WANG Y M,ZHONG M H,et al.Sedimentary characteristics and evolution model of delta in backbulge zone:a case study in Sangtamu area.Lithologic Reservoirs,2016,28(3):34-41.