结晶岩中天然气异常的地震响应
摘要
通过对中国大陆科学钻探主孔地质及地震反射资料的综合研究,发现甲烷、二氧化碳与氦等气体异常与三分量地震反射带有关,在水平分量剖面上尤其明显.然而,在甲烷等气体异常存在的井段,结晶岩石的孔隙度仅为1%左右,难以说明产生地震响应的原由.主孔岩心地震波速测量结果表明,尽管结晶岩的孔隙度低,其中微裂隙含气会引起地震波速(尤其是S波速度)与饱水岩样相比明显降低,导致充气结晶岩石产生明显的地震响应.据此可以预测,如果中地壳部分岩石因水岩作用孔隙度提高并且充有天然气,中地壳顶部天然气会聚于孔隙度提高的结晶岩中的几率将大于地壳.由于这种会聚会引起低渗结晶岩石S波速度明显降低,地震方法将来可用于探测中地壳的天然气床.
引文
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3孙青,罗立强,李圣强.中国大陆科学钻探主孔0-2000米N、Ar和He流体地球化学研究.岩石学报,2004,20(1):179—184
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5Faber E,Gerling P,Dumke I.Gaseous hydrocarbons of unknown origin found while drilling.Org Geochem,1988,13(4-6):875—879
6Faber E.Origin of hydrocarbon gases in the pump-test of the KTB pilot well.Sci Drilling,1995,5:123—128
7Moller P,Weise S M,Althaus E,et al.Paleofluids and recent fluids in the upper continental crust:results from German continental drilling program(KTB).J Geophys Res,1997,102(B8):18233—18254
8Xu Z Q,Yang W C,Zhang Z M,et al.Scientific significance and site-selection of the first Chinese continental scientific deep drillhole.Continent Dyn,1998,3:1—13
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11Yang W C.Crustal structure and development of Sulu UHPM Terrane in east-central China.Episodes,1997,20(2):100—103
12Yang W C.Analysis of deep intracontinental subduction.Episodes,2000,23(1):20—25
13杨文采,于常青.从地球物理资料看大别-苏鲁超高压变质带演化的运动学与动力学.地球物理学报,2001,44(3):346—359
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15Yang W C.Geophysical profiling across the Sulu ultra-high-pressure metamorphic belt,Eastern China.Tectonophysics,2002,354:277—288
16杨文采,杨午阳,程振炎.中国科学大陆钻探孔区三维地震资料的初步解释.岩石学报,2004,20(1):127—138
17杨文采,杨午阳,金振民,等.苏鲁超高压变质带岩石圈地震组构.中国科学D辑:地球科学,2004,34(4):307—319
18Yang W C.Flat mantle reflectors in eastern China:possible evidence of lithospheric thinning.Tectonophysics,2003,369(3-4):219—230
19杨文采.东大别超高压变质带的深部构造.中国科学D辑:地球科学,2003,133(2):83—192
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22杨文采,许志琴,于常青.2007上地壳中副片麻岩的反射属性.中国科学D辑:地球科学,2007,37(11):1425—1432
23Liou J G,Maruyama S,Ernst W G.Seeing a mountain in a grain of garnet.Science,1997,27(4):48—49
24许志琴,张泽民,刘福来,等.中国大陆科学钻探主孔1200米构造柱及变形构造初步解析.岩石学报,2004,20(1):53—72
25Xu Z Q,Wang Q,Ji S C,et al.Petrofabrics and seismic properties of garnet peridotite from the UHP Sulu terrane.Tectonophysics,2006,421:111—127
26Kern H,Jin Z,Gao S,et al.Physical properties of UHPM rocks from the Sulu terrain,eastern central China:implications for the seismic structure at Donghai(CCSD)drilling site.Tectonophysics,2002,354:315—330
27陈意,金振民,欧新功,等.韧性剪切带中片麻岩和超高压榴辉岩变形特征及其与地震波速各向异性的关系.岩石学报,2004,20(1):97—108
28杨文采,朱光明,杨振华,等.中国大陆科学钻探孔区数字三分量反射地震调查.地球物理学报,2007,50(3):780—790
29张泽民,沈昆,赵旭东,等.超高压变质作用中的流体.岩石学报,2006,22(7):1975—1984
30赵旭东,张泽民.中国大陆科学钻探主孔超高压榴辉岩中绿辉石结构水的研究.岩石学报,2006,22(7):2039—2050
31Neprimerov N N.Unconventional development of hydrocarbon researches on the old oil-producing areas.Georesources,2000,1(1):21—25
32Sitdikova L,Izotov V.Destruction zones in the crystalline basement as potential hydrocarbon-bearing reservoirs.Georesources,2000,1(1):26—29
33杨文采.后板块地球内部物理学.北京:地质出版社,1998.1—112
34杨文采.苏鲁大别地球物理与壳幔作用.北京:地质出版社,2005.22—98
35张荣华,张雪彤,胡书敏,等.中地壳的水岩作用对相关的地球物理性质的影响.岩石学报,2007,23(11):2943—2954
36张荣华,张雪彤,胡书敏,等.中地壳温度压力条件下的水岩作用化学动力学实验.岩石学报,2007,23(11):2933—2942
2罗立强,王健,李松,等.中国大陆科学钻探现场分析与地下流体异常识别.岩矿测试,2004,23(2):81—86
3孙青,罗立强,李圣强.中国大陆科学钻探主孔0-2000米N、Ar和He流体地球化学研究.岩石学报,2004,20(1):179—184
4Mitrofanov E P,Yakovlev Y N,Ikorsky S V,et al.A change on composition of rocks,mineral phases and trapped gases in the Kola super-deep borehole(SD-3)section of the Archean complex with depth.In:Fuchs K,Kozlovsky Y A,Krivtsov A I,et al.,eds.Su-per-Deep Continental Drilling and Deep Geophysical Sounding Armstden.Springer-Verlag,1990.353—363
5Faber E,Gerling P,Dumke I.Gaseous hydrocarbons of unknown origin found while drilling.Org Geochem,1988,13(4-6):875—879
6Faber E.Origin of hydrocarbon gases in the pump-test of the KTB pilot well.Sci Drilling,1995,5:123—128
7Moller P,Weise S M,Althaus E,et al.Paleofluids and recent fluids in the upper continental crust:results from German continental drilling program(KTB).J Geophys Res,1997,102(B8):18233—18254
8Xu Z Q,Yang W C,Zhang Z M,et al.Scientific significance and site-selection of the first Chinese continental scientific deep drillhole.Continent Dyn,1998,3:1—13
9杨文采,程振炎,张春贺.中国科学钻探选址地球物理调查与大别-苏鲁岩石圈.地球学报,2003,24(5):391—404
10杨文采,胡振远,程振炎,等.郯城-涟水综合地球物理剖面.地球物理学报,1999,42(2):206—217
11Yang W C.Crustal structure and development of Sulu UHPM Terrane in east-central China.Episodes,1997,20(2):100—103
12Yang W C.Analysis of deep intracontinental subduction.Episodes,2000,23(1):20—25
13杨文采,于常青.从地球物理资料看大别-苏鲁超高压变质带演化的运动学与动力学.地球物理学报,2001,44(3):346—359
14杨文采,张春贺,朱光明.标定大陆科学钻探孔区地震反射体.地球物理学报,2002,45(3):370—384
15Yang W C.Geophysical profiling across the Sulu ultra-high-pressure metamorphic belt,Eastern China.Tectonophysics,2002,354:277—288
16杨文采,杨午阳,程振炎.中国科学大陆钻探孔区三维地震资料的初步解释.岩石学报,2004,20(1):127—138
17杨文采,杨午阳,金振民,等.苏鲁超高压变质带岩石圈地震组构.中国科学D辑:地球科学,2004,34(4):307—319
18Yang W C.Flat mantle reflectors in eastern China:possible evidence of lithospheric thinning.Tectonophysics,2003,369(3-4):219—230
19杨文采.东大别超高压变质带的深部构造.中国科学D辑:地球科学,2003,133(2):83—192
20杨文采,陈志德.中国东部的多重拱弧地震构造.中国科学D辑:地球科学,2005,35(12):1120—1130
21杨文采,杨午阳,程振炎.中国大陆科学钻探孔区地震反射的标定.地球物理学报,2006,49(6):1685—1696
22杨文采,许志琴,于常青.2007上地壳中副片麻岩的反射属性.中国科学D辑:地球科学,2007,37(11):1425—1432
23Liou J G,Maruyama S,Ernst W G.Seeing a mountain in a grain of garnet.Science,1997,27(4):48—49
24许志琴,张泽民,刘福来,等.中国大陆科学钻探主孔1200米构造柱及变形构造初步解析.岩石学报,2004,20(1):53—72
25Xu Z Q,Wang Q,Ji S C,et al.Petrofabrics and seismic properties of garnet peridotite from the UHP Sulu terrane.Tectonophysics,2006,421:111—127
26Kern H,Jin Z,Gao S,et al.Physical properties of UHPM rocks from the Sulu terrain,eastern central China:implications for the seismic structure at Donghai(CCSD)drilling site.Tectonophysics,2002,354:315—330
27陈意,金振民,欧新功,等.韧性剪切带中片麻岩和超高压榴辉岩变形特征及其与地震波速各向异性的关系.岩石学报,2004,20(1):97—108
28杨文采,朱光明,杨振华,等.中国大陆科学钻探孔区数字三分量反射地震调查.地球物理学报,2007,50(3):780—790
29张泽民,沈昆,赵旭东,等.超高压变质作用中的流体.岩石学报,2006,22(7):1975—1984
30赵旭东,张泽民.中国大陆科学钻探主孔超高压榴辉岩中绿辉石结构水的研究.岩石学报,2006,22(7):2039—2050
31Neprimerov N N.Unconventional development of hydrocarbon researches on the old oil-producing areas.Georesources,2000,1(1):21—25
32Sitdikova L,Izotov V.Destruction zones in the crystalline basement as potential hydrocarbon-bearing reservoirs.Georesources,2000,1(1):26—29
33杨文采.后板块地球内部物理学.北京:地质出版社,1998.1—112
34杨文采.苏鲁大别地球物理与壳幔作用.北京:地质出版社,2005.22—98
35张荣华,张雪彤,胡书敏,等.中地壳的水岩作用对相关的地球物理性质的影响.岩石学报,2007,23(11):2943—2954
36张荣华,张雪彤,胡书敏,等.中地壳温度压力条件下的水岩作用化学动力学实验.岩石学报,2007,23(11):2933—2942
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