金山气田致密砂岩储层含气性叠前地震预测方法研究
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摘要
松辽盆地金山气田致密砂岩储层物性较差、流体地震响应特征弱,储层含气性有效识别和预测是精细勘探开发的关键。基于叠前地震道集提高品质处理及入射角道集叠加处理,开展致密砂岩含气储层AVO响应特征分析,优选流体因子属性定性预测含气储层展布范围;基于致密砂岩含气储层岩石物理交会分析,寻找含气性敏感弹性参数,优选纵横波速度比参数开展叠前反演刻画含气储层展布规律,实现致密砂岩储层含气性的定量预测。实际应用研究表明,预测结果与实钻井符合率较高,对其他地区致密砂岩储层含气性预测研究具有借鉴意义。
The physical property and fluid seismic response features of tight sand reservoir of Jinshan gas field are very poor.Effective identification and prediction on reservoir gas-bearing is a key for detailed exploration and production.Based on pre-stack seismic gather quality improved processing and incidence stack processing,the tight-sand gas-bearing AVO response feature are analyzed.The fluid factor attribute is seleceted to qualitatively predict gas-bearing distribution area.Based on the rock physics cross-plot analysis of tight sand gas-bearing reservoir,the hydrocarbon sensitive elastic parameters are selected.The Vp/Vs ratio,which is acquired through pre-stack inversion,can depict gas-bearing reservoir boundary.The quantitative prediction of tight sand gas-bearing can be researched through all above methods.The practical application reveals that the prediction results have high coincidence rate with drilled wells.This study can be used as a reference to other tight sand reservoir gas-bearing prediction research.
The physical property and fluid seismic response features of tight sand reservoir of Jinshan gas field are very poor.Effective identification and prediction on reservoir gas-bearing is a key for detailed exploration and production.Based on pre-stack seismic gather quality improved processing and incidence stack processing,the tight-sand gas-bearing AVO response feature are analyzed.The fluid factor attribute is seleceted to qualitatively predict gas-bearing distribution area.Based on the rock physics cross-plot analysis of tight sand gas-bearing reservoir,the hydrocarbon sensitive elastic parameters are selected.The Vp/Vs ratio,which is acquired through pre-stack inversion,can depict gas-bearing reservoir boundary.The quantitative prediction of tight sand gas-bearing can be researched through all above methods.The practical application reveals that the prediction results have high coincidence rate with drilled wells.This study can be used as a reference to other tight sand reservoir gas-bearing prediction research.
引文
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[14]王军,周东红,张中巧,等.叠前弹性波阻抗反演在流体检测中的应用-以渤海海域QHD29-2区块为例[J].石油物探,2011,50(5):475-486.WANG J,ZHOU D H,ZHANG Z Q,et al.Application of pre-stack elastic wave impedance inversion technique in the fluid detection of QHD 29-2area in Bohai sea[J].Geophysical perspecting for petroleum,2011,50(5):475-486.(In Chinese)
[15]徐文会,邢文军,高文中,等.南堡油田沙一段优势储层预测技术[J].特种油气藏,2014,21(4):70-72.XU W H,XING W J,GAO W Z,et al.Prediction technique of superior reservoir in the Sha yi formation in Nanpu oilfield[J].Special Oil and Gas Reservoir,2014,21(4):70-72.(In Chinese)
[2]刘吉余,马志欣,孙淑艳,等.致密含气砂岩研究现状及发展展望[J].天然气地球科学,2008,19(3):316-319.LIU J Y,MA Z X,SUN S Y,et al.Present research situation and prospects of tight gas sands[J].Natural Gas Geoscience,2008,19(3):316-319.(In Chinese)
[3]陈波,凌云,刘钦甫,等.利用地震属性技术分析储层含油气信息——以塔里木盆地HD4油田为例[J].特种油气藏,2005,12(3):12-14.CHEN B,LIN Y,LIU Q P,et al.Seismic attributes reflecting the information of oil-bearing reservoirs—a case study of HD4oilfield in Tarim basin[J].Special Oil and Gas Reservoir,2005,12(3):12-14.(In Chinese)
[4]陈伟.一种新的瞬时谱分析技术在致密砂岩气检测中的应用[J].科学技术与工程,2015,15(33):124-130.CHEN W.Application of a new instantaneous spectrum analysis technique in the tight sandstone gas detection[J].Science Technology and Engineering,2015,15(33):124-130.(In Chinese)
[5]张静,张虎权,李延丽,等.蜀南地区须家河组致密砂岩含气性综合预测[J].天然气工业,2009,29(1):45-48.ZHANG J,ZHANG H Q,LI Y L,et al.Comprehensive prediction of gas bearing properties of tight sandstone in Xujiahe formation in the area of the south of Sichuan[J].Natural Gas Industry 2009,29(1):45-48.(In Chinese)
[6]印兴耀,曹丹平,王保丽,等,基于叠前地震反演的流体识别方法研究进展[J].石油地球物理勘探,2014,49(1):22-31.YIN X Y,CAO D P,WANG B L,et al.Research progress of fluid disceimination with pre-stack seismic inversion[J].Oil Geophysical Prospecting,2014,49(1):22-31.(In Chinese)
[7]宋建国,王艳香,乔玉雷,等.AVO技术进展[J].地球物理学进展,2008,23(2):508-514.SONG J G,WANG Y X,QIAO Y L,et al.Advances in AVO technique[J].Progress in Geophysics,2008,23(2):508-514.(In Chinese)
[8]王锡文.AVO技术在致密砂岩气藏预测中的应用[J].石油天然气学报,2012,34(11):56-62.WANG X W.Application of AVO technique in prediction of tight sandstone reservoir[J].Journal of oil and gas technology,2012,34(11):56-62.(In Chinese)
[9]任青春,文一华,郑雷清,等.叠前反演的致密砂岩储层预测和含油气性检测[J].吐哈油气,2012,17(1):18-21.REN Q C,WEN Y H,ZHENG L Q,et al.Prediction and hydrocarbon bearing measurement for tight sands reservoir based on pre-stack inversion[J].Tuha oil&gas,2012,17(1):18-21.(In Chinese)
[10]孙鹏远.多属性AVO分析及弹性参数反演方法研究[D].长春:吉林大学,2004.SUN P Y.Studies on the method of multi-attribute AVO analysis&elastic parameters inversion[D].Changchun:Jilin University,2004.(In Chinese)
[11]付斌,李进步,陈龙,等.苏里格气田西区致密砂岩气水识别方法与应用[J].特种油气藏,2014,21(3):66-69.FU B,LI J B,CHEN L,et al.Identification and application of gas and water in tight sandstone gas reservoirs in West Sulige area[J].Special Oil and Gas Reservoir,2014,21(3):66-69.(In Chinese)
[12]CONNOLLY P.Elastic Impedanc[J].The Leading Edge,1999,18(4):438-452.
[13]黄捍东,汪佳蓓,郭飞.敏感参数分析在叠前反演流体识别中的应用[J].物探与化探,2013,36(6):941-946.HUANG H D,WANG J P,GUO F.The application of sensitive parameters analysis to fluid identification based on pre-stack inversion[J].Geophysical&geochemical exploration,2013,36(6):941-946.(In Chinese)
[14]王军,周东红,张中巧,等.叠前弹性波阻抗反演在流体检测中的应用-以渤海海域QHD29-2区块为例[J].石油物探,2011,50(5):475-486.WANG J,ZHOU D H,ZHANG Z Q,et al.Application of pre-stack elastic wave impedance inversion technique in the fluid detection of QHD 29-2area in Bohai sea[J].Geophysical perspecting for petroleum,2011,50(5):475-486.(In Chinese)
[15]徐文会,邢文军,高文中,等.南堡油田沙一段优势储层预测技术[J].特种油气藏,2014,21(4):70-72.XU W H,XING W J,GAO W Z,et al.Prediction technique of superior reservoir in the Sha yi formation in Nanpu oilfield[J].Special Oil and Gas Reservoir,2014,21(4):70-72.(In Chinese)