高精度重磁电资料在伊犁盆地巩乃斯坳陷基底岩性岩相识别中的应用
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摘要
盆地基底岩性岩相对于研究盆地构造格架、构造演化以及对后期沉积特征及油气分布的影响等具有重要意义.勘探困难区,构造复杂、基底埋深大、岩性岩相复杂,造成地震资料识别基底岩性岩相存在诸多困难.不同岩性的火成岩具有不同的密度、磁化率和电阻率特征及组合特征,使应用多方法组合提高解释精度成为可能.文中介绍了利用高精度重磁电资料划分基底岩性岩相的方法.基于计算机辅助自动识别,相比传统依靠人工对比划分的方法,提高了工作效率和划分精度.利用这种方法,结合重磁电物性组合特征,对研究区的岩性、岩相进行了划分.研究区有喷发相、侵入相等.岩性有中酸性侵入岩、中酸性喷发岩等.重磁电综合解释是研究基底的有效方法组合.
Basement lithology lithofacies identification is an important factor in the research of the structure,evolution,sedimentary and the hydrocarbon distribution.It is difficult to identify the lithofacies of the basement and the igneous rocks in the complicated area,for the structures are strongly deformed,the basement buried deep and the lithofacies is complex.However,it is a feasibility study to identify the lithofacies of the basement and the igneous rocks using joint method of gravity,magnetic,and electricity,because there's the different density magnetism and resistivity characteristics and combination characteristic in the various igneous rocks,respectively.A computer assisted method to identify the lithofacies of the basement igneous rocks is used in this paper,which is more efficient than the manual ones.Using this method and gravity,magnetic,and electricity combination characteristics,the lithology and lithofacies of the project area are divided.They have the eruption and the intrusive lithofacies etc.The lithologies are the middle acidic intrusive and the middle acidic eruptive rocks etc.The synthetic interpretation of the gravity,magnetic,electricity is an effective combination method to study the basement.
Basement lithology lithofacies identification is an important factor in the research of the structure,evolution,sedimentary and the hydrocarbon distribution.It is difficult to identify the lithofacies of the basement and the igneous rocks in the complicated area,for the structures are strongly deformed,the basement buried deep and the lithofacies is complex.However,it is a feasibility study to identify the lithofacies of the basement and the igneous rocks using joint method of gravity,magnetic,and electricity,because there's the different density magnetism and resistivity characteristics and combination characteristic in the various igneous rocks,respectively.A computer assisted method to identify the lithofacies of the basement igneous rocks is used in this paper,which is more efficient than the manual ones.Using this method and gravity,magnetic,and electricity combination characteristics,the lithology and lithofacies of the project area are divided.They have the eruption and the intrusive lithofacies etc.The lithologies are the middle acidic intrusive and the middle acidic eruptive rocks etc.The synthetic interpretation of the gravity,magnetic,electricity is an effective combination method to study the basement.
引文
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[22]孟小红,刘国峰,陈召曦,等.基于剩余异常相关成像的重磁物性反演方法[J].地球物理学报,2012,55(1):304-309.Meng X H,Liu G F,Chen Z X,et al.3-D gravity andmagnetic inversion for physical properties based on residualanomaly correlation[J].Chinese Journal of Geophysics(inChinese),2012,55(1):304-309.
[23]朱传庆,杨书江,李同彬,等.最优化电性分层技术在柯克亚山前带的应用[J].地球物理学进展,2007,22(2):562-566.Zhu C Q,Yang S J,Li T B,et al.Application ofoptimization layering technology to CEMP profile in Kekeyacomplicated fore-mountains area[J].Progress in Geophysics(in Chinese),2007,22(2):562-565.
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[25]程建华,尹秉喜,杨勇.双石垒子航磁异常查证中的重磁电综合解释[J].西北地质,2010,43(2):163-168.Cheng J H,Yin B X,Yang Y.Comprehensive interpretationof gravity,magnetism,and electricity in aeromagneticanomalies confirmation at Shuangshileizi[J].NorthwesternGeology(in Chinese),2010,43(2):163-168.
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[2]王玉华,雷茂盛,雷裕红,等.高精度重磁资料在松辽盆地古龙断陷火山岩气藏勘探中的应用[J].石油地球物理勘探,2008,43(1):107-112.Wang Y H,Lei M S,Lei Y H,et al.Application of high-precision gravity and magnetic data in exploration of volcanicgas reservoir in Gulong fault depression of Songliao basin[J].Oil Geophysical Prospecting(in Chinese),2008,43(1):107-112.
[3]温声明,杨书江,雷裕红,等.综合物探在塔里木盆地英买力地区火成岩研究中的应用[J].成都理工大学学报(自然科学版),2006,33(3):317-320.Wen S M,Yang S J,Lei Y H,et al.Application of syntheticgeophysical prospecting in research of the igneous rocks fromthe Yingmaili area,Tarim Basin,China[J].Journal ofChengdu University of Technology(Science&TechnologyEdition)(in Chinese),2006,33(3):317-320.
[4]郑琦怡,周毅.测井资料识别火成岩岩性方法研究[J].内蒙古石油化工,2008,19(34):89-90.Zheng Q Y,Zhou Y.Research of identifying igneous lithologywith well logging data[J].Inner Mongolia PetrochemicalIndustry(in Chinese),2008,19(34):89-90.
[5]冯翠菊,王敬岩,冯庆付.利用测井资料识别火成岩岩性的方法[J].大庆石油学院学报,2004,28(4):9-11.Feng C J,Wang J Y,Feng Q F.Distinguishing igneous rocklithology by logging data[J].Journal of Daqing PetroleumInstitute(in Chinese),2004,28(4):9-11.
[6]刘云祥,何展翔,张碧涛,等.识别火成岩岩性的综合物探技术[J].勘探地球物理进展,2006,29(2):115-118.Liu Y X,He Z X,Zhang B T,et al.Integrated geophysicaltechniques for identification of igneous rocks[J].Progress inExploration Geophysics(in Chinese),2006,29(2):115-118.
[7]曹国银,刘娅铭,孟宪录,等.深层火山口位置及火山岩相推测方法的研究与应用[J].石油物探,2002,41(增刊):190-192Cao G Y,Liu Y M,Meng X L,et al.Geophysical prospectingfor petroleum[J].Petroleum exploration(in Chinese),2002,41(sup):190-192.
[8]张生,宋景明,索孝东,等.划分基底岩性的重磁电异常信息模式判别技术[C].中国地球物理,2010:546.Zhang S,Song J M,Suo X D,et al.The Chinese geophysics[C].Chinese Geophysical(in Chinese),2010,546.
[9]江为为,涂广红,朱东英,等.大庆外围盆地地球物理场与盆地基底特征[J].地球物理学进展,2006,21(4):1064-1079.Jiang W W,Tu G H,Zhu D Y,et al.Characters ofgeophysical fields and floor of Daqing outer basins[J].Progress in Geophysics(in Chinese),2006,21(4):1064-1079.
[10]刘财,杨宝俊,王兆国,等.大兴安岭西北部中新生代盆地群基底电性分带特征研究[J].地球物理学报,2011,54(2):415-421.Liu C,Yang B J,Wang Z G,et al.A research on thegeoelectrical banding characteristics of the bottom of theMesozoic-Cenozoic basin groups in the Northwest of the DaHinggan Ling fault[J].Chinese Journal of Geophysics(inChinese),2011,54(2):415-421.
[11]王涛,徐鸣洁,王良书,等.鄂尔多斯及邻区航磁异常特征及其大地构造意义[J].地球物理学报,2007,50(1):163-170.Wang T,Xu M J,Wang L S,et al.Aeromagnetic anomalyanalysis of Ordos and adjacent regions and its tectonicimplications[J].Chinese Journal of Geophysics(in Chinese),2007,50(1):163-170.
[12]周立宏,李三忠,赵国春,等.华北克拉通中东部基底构造单元的重磁特征[J].地球物理学进展,2004,19(1):91-100.Zhou L H,Li S Z,Zhao G C,et al.Gravity and magneticfeatures of crystalline basement in the central and EasternNorth China Craton[J].Progress in Geophysics(inChinese),2004,19(1):91-100.
[13]杨辉,文百红,戴晓峰,等.火山岩油气藏重磁电震综合预测方法及应用[J].地球物理学报,2011,54(2):286-293.Yang H,Wen B H,Dai X F,et al.Comprehensivepredication of hydrocarbon deposits in volcanic rock bygravity,magnetic,electrical and seismic data and itsapplication[J].Chinese Journal of Geophysics(in Chinese),2011,54(2):286-293.
[14]阮小敏,滕吉文,安玉林,等.阴山造山带和鄂尔多斯盆地北部磁异常场与结晶基底特征研究[J].地球物理学报,2011,54(9):2272-2282.Ruan X M,Teng J W,An Y L,et al.Analysis of magneticanomaly and crystalline basement of the Yinshan orogen andthe northern Ordos basin regions[J].Chinese Journal ofGeophysics(in Chinese),2011,54(9):2272-2282.
[15]鲁宝亮,孙晓猛,张功成,等.南海北部盆地基底岩性地震-重磁响应特征与识别[J].地球物理学报,2011,54(2):563-572.Lu B L,Sun X M,Zhang G C,et al.Seismic-potential fieldresponse characteristics and identification of basementlithology of the northern South China Sea basin[J].ChineseJournal of Geophysics(in Chinese),2011,54(2):563-572.
[16]郝天珧,徐亚,赵百民,等.南海磁性基底分布特征的地球物理研究[J].地球物理学报,2009,52(11):2763-2774.Hao T Y,Xu Y,Zhao B M,et al.Geophysical research ondistribution features of magnetic basements in the SouthChina Sea[J].Chinese Journal of Geophysics(in Chinese),2009,52(11):2763-2774.
[17]李成立,崔瑞华,刘益中.盆地基底岩性的综合地球物理预测方法——以松辽盆地滨北地区基底岩性预测为例[J].地球物理学报,2011,54(2):491-498.Li C L,Cui R H,Liu Y Z.Comprehensive geophysicalprediction method of basement lithology—Example of Binbeiarea,Songliao basin[J].Chinese Journal of Geophysics(inChinese),2011,54(2):491-498.
[18]李玉文,余朝丰,熊绍云,等.伊犁盆地石炭系石油地质特征与勘探潜力[J].海相油气地质,2011,16(3):30-37.Li Y W,Yu C F,Xiong S Y,et al.Petroleum geologycharacteristics and exploration potential of carboniferousrocks in Ili basin[J].Marine Origin Petroleum Geology(inChinese),2011,16(3):30-37.
[19]张彦玲,于志翔.Visual Basic 6.0程序设计[M].北京:电子工业出版社,2009,1-288.Zhang Y L,Yu Z X.Visual Basic 6.0Program Design(inChinese)[M].Beijing:Electronic Industry Press,2009,1-288.
[20]林振民,陈少强.三维重磁交互解释及区域与局部异常的分离[J].地球物理学报,1996,39(5):705-711.Lin Z M,Chen S Q.Three-dimensional gravity and magneticinteractive modeling and regionalresidual seperation[J].Chinese Journal of Geophysics(in Chinese),1996,39(5):705-711.
[21]陈洁,温宁,陈邦彦.重磁电震联合反演研究进展与展望[J].地球物理学进展,2007,22(5):1427-1438.Chen J,Wen N,Chen B Y.Joint inversion of gravity-magnetic-electrical-seismic combination survey:progress andprospect[J].Progress in Geophysics(in Chinese),2007,22(5):1427-1438.
[22]孟小红,刘国峰,陈召曦,等.基于剩余异常相关成像的重磁物性反演方法[J].地球物理学报,2012,55(1):304-309.Meng X H,Liu G F,Chen Z X,et al.3-D gravity andmagnetic inversion for physical properties based on residualanomaly correlation[J].Chinese Journal of Geophysics(inChinese),2012,55(1):304-309.
[23]朱传庆,杨书江,李同彬,等.最优化电性分层技术在柯克亚山前带的应用[J].地球物理学进展,2007,22(2):562-566.Zhu C Q,Yang S J,Li T B,et al.Application ofoptimization layering technology to CEMP profile in Kekeyacomplicated fore-mountains area[J].Progress in Geophysics(in Chinese),2007,22(2):562-565.
[24]林珍,姚永坚.南黄海某典型剖面重磁震联合反演及综合解释[J].物探与化探,2009,33(4):361-367.Lin Z,Yao Y J.Garvity-magnetic-seismic inversion andintegrated interpretation of a typical section in south yellowsea[J].Geophysical and Geochemical Exploration(inChinese),2009,33(4):361-367.
[25]程建华,尹秉喜,杨勇.双石垒子航磁异常查证中的重磁电综合解释[J].西北地质,2010,43(2):163-168.Cheng J H,Yin B X,Yang Y.Comprehensive interpretationof gravity,magnetism,and electricity in aeromagneticanomalies confirmation at Shuangshileizi[J].NorthwesternGeology(in Chinese),2010,43(2):163-168.
[26]李继军,汪启年.重磁电综合解释方法在天津城市三维地质结构调查中的应用[J].物探与化探,2007,31(5):444-450.Li J J,Wang Q N.The application of combined gravity-magnetic-electric method to the urban three-dimensionalgeological structure survey in Tianjin[J].Geophysical&Geochemical Exploration(in Chinese),2007,31(5):444-450.
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