黄河口凹陷岩浆底辟构造地震响应特征及发育模式
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摘要
为研究黄河口凹陷岩浆底辟构造油气成藏规律和发育模式,根据底辟构造模式和理论,利用钻井和高精度三维地震资料,研究岩浆底辟构造的成因、地震响应特征和发育模式,分析岩浆底辟构造与油气成藏的关系.结果表明,黄河口凹陷发育2次以裂隙式喷发模式为主的岩浆喷发活动,不同的火山岩亚相(火山通道相、火山口相、侵入相、溢流相和喷发相)具有特定的地震响应特征.此外,黄河口凹陷岩浆底辟构造的发育模式及其成藏规律与其他地区的存在较大差异,该区岩浆底辟构造主要为岩墙遮挡性质的鼻状构造和岩上断层控制的断块构造,发育程度控制油气的运移和聚集.该成果有利于指导黄河口凹陷火山岩发育区的油气勘探.
Diapir structure is the important type of the hydrocarbon accumulation.Taking the magmatic diapir structure at southern slope of Huanghekou sag for the study object,based on the analysis of magmatic diapir developing model and reservoir forming rule,using the results of comprehensive analysis of log-seismic data and high precision seismic data,we analyzed and studied the forming case of magmatic diapir,feature of seismic response and developing model,and the relationship of the magmatic diapir with hydrocarbon accumulation.The result shows that the block developed two times of magmatic exhalation.Different subfacieses of volcanic rock(volcanic channel facies,volcanic crater facies,invasion facies,effusive facies,and eruptive facies)have the specific seismic response characteristics.Furthermore,magmatic diapir developing model and reservoir forming rule in this block has some unique features.As the conclusion,magmatic diapir structure is a nose structure block shielded by dike and controlled by superior petrosal fault,and the developing degree controls the hydrocarbon migration and accumulation.Therefore,the study of the seismic response and developing model of diapir structure is helpful to guide the hydrocarbon exploration of volcanic area in Huanghekou sag.
Diapir structure is the important type of the hydrocarbon accumulation.Taking the magmatic diapir structure at southern slope of Huanghekou sag for the study object,based on the analysis of magmatic diapir developing model and reservoir forming rule,using the results of comprehensive analysis of log-seismic data and high precision seismic data,we analyzed and studied the forming case of magmatic diapir,feature of seismic response and developing model,and the relationship of the magmatic diapir with hydrocarbon accumulation.The result shows that the block developed two times of magmatic exhalation.Different subfacieses of volcanic rock(volcanic channel facies,volcanic crater facies,invasion facies,effusive facies,and eruptive facies)have the specific seismic response characteristics.Furthermore,magmatic diapir developing model and reservoir forming rule in this block has some unique features.As the conclusion,magmatic diapir structure is a nose structure block shielded by dike and controlled by superior petrosal fault,and the developing degree controls the hydrocarbon migration and accumulation.Therefore,the study of the seismic response and developing model of diapir structure is helpful to guide the hydrocarbon exploration of volcanic area in Huanghekou sag.
引文
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[2]Grout F F.Scale models of structures related to batholiths[J].American Journal of Science,1945,243(A):260-284.
[3]王燮培,费琪,张家骅.石油勘探构造分析[M].武汉:中国地质大学出版杜,1990:85-117.Wang Xiepei,Fei Qi,Zhang Jiahua.Exploration petroleum structure analysis[M].Wuhan:Publishing of China University of Geosciences,1990:85-117.
[4]Jackson M P A,Talbot C J.External shapes strain rates and dynamics of salt structures[J].GSA Bulletin,1986,97(3):305-323.
[5]Dixon J M.Finite strain and progressive deformation in models of diapiric structures[J].Tectonophysics,1975,28:89-124.
[6]Weinberg R F,Podladchikov Y.Diapiric ascent of magmas through power law crust and mantle[J].Geophys.Res.,1994,99(B5):9543-9560.
[7]苏巍,张春芬.火山岩地震响应特征的正演模拟[J].世界地质,2011,30(3):429-438.Su Wei,Zhang Chunfen.Forward modeling of volcanic seimic response characteristics[J].Global Geology,2011,30(3):429-438.
[8]谭俊敏,孙志信.火成岩侵入形成的构造物理模拟实验及实例[J].石油试验地质,2007,29(3):324-328.Tan Junmin,Sun Zhixin.Physical simulation experiment and example for the structures forming by invasion of igneous rock[J].Petroleum Geology&Experiment,2007,29(3):324-328.
[9]何春波,汤良杰,黄太柱,等.塔里木盆地塔中地区底辟构造与油气关系[J].大庆石油学院学报,2009,33(5):5-10.He Chunbo,Tang Liangjie,Huang Taizhu,et al.Diapir structure and its relationship with petroleum accumulation in Tazhong area,Tarim basin[J].Journal of Daqing Petroleum Institute,2009,33(5):5-10.
[10]云金表,庞庆山,徐佰承,等.松辽盆地南部CO2气藏的形成条件[J].大庆石油学院学报,2000,24(2):81-84.Yun Jinbiao,Pang Qingshan,Xu Baicheng,et al.Research on the formation condition of CO2gas pool in the southern Songliao basin[J].Jouranal of Daqing Petroleum Insititute,2000,24(2):81-84.
[11]张文宾,陈守田,周俊宏.海拉尔盆地油气分布规律及成藏模式[J].大庆石油学院学报,2004,28(6):8-11.Zhang Wenbin,Chen Shoutian,ZhouJunhong.Oil-gas accumulation model analysis in Hailaer basin[J].Journal of Daqing Petroleum Institute,2004,28(6):8-11.
[12]何斌,徐义刚,王雅玫,等.北京西山房山岩体岩浆底辟构造及其地质意义[J].地球科学-中国地质大学学报,2005,30(3):298-307.He Bin,Xu Yigang,Wang Yamei,et al.Magmatic diapir of fangshan pluton in the western hills,Beijing and its geological significance[J].Earth Science—Journal of China University of Geosciences,2005,30(3):298-307.
[13]Lu Xiuxiang,Yang Haijun.Petroleum accumulation associated with volcanic activity in the Tarim basin-taking Tazhong-47oilfield as an example[J].Petroleum Science,2004,1(3):30-36.
[14]周心怀,余一欣,汤良杰.渤海地区底辟构造及其油气地质意义[J].石油学报,2009,30(4):518-521.Zhou Xinhuai,Yu Yixin,Tang Liangjie.Biapir structures and their significances on hydrocarbon accumulation in the offshore Bohai bay basin[J].Acta Petrolei Sinica,2009,30(4):518-521.
[15]孙和风,彭文绪,周心怀.渤海海域莱州湾凹陷盐构造成因探讨[J].大地构造与成矿学,2009,33(3):352-357.Sun Hefeng,Peng Wenxu,Zhou Xinhuai.Mechanics of salt tectonics in laizhouwan sag,offshore Bohai bay basin[J].Geotectonica ET Metallogenia,2009,33(3):352-357.
[16]何家雄,祝有海,马文宏,等.火山、泥火山/泥底辟及含气陷阱与油气聚集关系[J].中国地质,2010,37(6):1720-1730.He Jiaxiong,Zhu Youhai,Ma Wenhong,et al.Volcanoes,mud volcanoes/mud diapers and gas traps and their relationship with oil and gas[J].Geology in China,2010,37(6):1720-1730.
[17]安菊华,陈振岩,常津焕.大屯民凹陷泥丘形成机制及其与油气的关系[J].天然气地球科学,2000,11(6):20-28.An Juhua,Chen Zhengyan,Chang Jinhuan.The ralationship between forming mechanism of Damintun depressions mud cone and oil and gas[J].Natural Gas Geoscience,2000,11(6):20-28.
[18]张树林,田世澄,朱芳冰.莺歌海盆地底辟构造的成因及石油地质意义[J].中国海上油气,1996,10(1):1-6.Zhang Shulin,Tian Shicheng,ZhuFangbing.Genesis of diapir structures in Yinggehai basin and its significances to petroleum geology[J].China Offshore Oil and Gas,1996,10(1):1-6.
[19]宫少波,王彦.莺歌海盆地中央底辟带油气成藏条件分析[J].石油天然气地质,2000,21(3):232-235.Gong Shaobo,Wang Yan.Analysis on hydrocarbon pool forming condition of central diapiric zone in Yinggehai basin[J].Oil&Gas Geology,2000,21(3):232-235.
[20]张树林,黄耀琴,黄雄伟.流体底辟构造及其成因探讨[J].地质科技情报,1999,18(2):19-22.Zhang Shulin,Huang Yaoqin,Hang Xiongwei.Fluid diapir structure and its geneses[J].Geological Science and Technology Information,1999,18(2):19-22.
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