井震结合深水区物源分析——以琼东南盆地深水区古近系陵水组为例
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摘要
根据琼东南盆地有限的地质资料,采用邻区浅水区钻井资料与深水区地震资料相结合的方法,建立了琼东南盆地深水区陵水组三维等时层序地层格架。在此基础上结合盆地区域地质概况和前人对琼东南盆地物源分析所做的工作,充分运用浅水区岩心观察描述的岩性序列特征及深水区地震剖面上前积反射等地震反射指向特征,并综合沉积相和地震反演砂体预测研究成果,对古近系陵水组物源发育状况进行了分析。结果表明,浅水区发育来自海南岛上的区域性大范围物源;深水区陵水组发育来自南部永乐隆起上区域性大范围物源,与此同时在局部高部位也存在一些小范围的剥蚀区,这些剥蚀区提供了呈放射状由高部位指向低部位的局部物源。在物源分析的基础上推断了扇三角洲、滩坝及浊积扇等有利砂体可能存在的区域。
With the limited geological information in southeast Hainan Basin and by jointly utilizing drilling date in nearby shallow area and the seismic data in deep water area,a 3D isochrone sequence stratigraphic framework for Lingshui Formation in deep water area of southeast Hainan Basin was established.By integrating the regional geology in the basin and the related works done before,fully utilizing the lithology sequence characteristics from the observation of shallow water cores and the seismic progradation reflection characteristics on seismic sections in deep water area,and summarizing study results on sedimentary facies and seismic inversion sand-body prediction,the material source development status of the Lingshi Formation in Paleogene was analyzed in this paper.The study results indicate that the development in shallow area was from the large range material source in Hainan Island,while the development of the Lingshui Formation from the south to the north in deep water was from the large range material source on Yongle Uplift in the south,meantime some small eroded areas exist in local high positions,those eroded areas provide local material source which was radially distributed from high positions to low positions.Based on the material source analysis in this paper the possible distribution areas for the favorable sand-bodies,such as fan delta,beach bar and turbidite fan,were inferred.
With the limited geological information in southeast Hainan Basin and by jointly utilizing drilling date in nearby shallow area and the seismic data in deep water area,a 3D isochrone sequence stratigraphic framework for Lingshui Formation in deep water area of southeast Hainan Basin was established.By integrating the regional geology in the basin and the related works done before,fully utilizing the lithology sequence characteristics from the observation of shallow water cores and the seismic progradation reflection characteristics on seismic sections in deep water area,and summarizing study results on sedimentary facies and seismic inversion sand-body prediction,the material source development status of the Lingshi Formation in Paleogene was analyzed in this paper.The study results indicate that the development in shallow area was from the large range material source in Hainan Island,while the development of the Lingshui Formation from the south to the north in deep water was from the large range material source on Yongle Uplift in the south,meantime some small eroded areas exist in local high positions,those eroded areas provide local material source which was radially distributed from high positions to low positions.Based on the material source analysis in this paper the possible distribution areas for the favorable sand-bodies,such as fan delta,beach bar and turbidite fan,were inferred.
引文
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[3]Henry S P,Paul W.Deepwater remains i mmature frontier.Offshore,2007,62(10):48～50
[4]戴金星,胡安平,杨春等.中国天然气勘探及其地学理论的主要新进展.天然气工业,2006,26(12):1～5
[5]胡宗全,朱筱敏,彭勇民.准噶尔盆地西北缘车排子地区侏罗系物源及古水流分析.古地理学报,2001,3(3):49～54
[6]李珍,焦养泉,刘春华等.黄骅坳陷高柳地区重矿物物源分析.石油勘探与开发,1998,25(6):5～7
[7]施淡,罗顺社,韩永林等.鄂尔多斯盆地沿河湾地区长油层组物源分析.石油地质与工程,2007,21(6):11～14
[8]赵红格,刘池洋.物源分析方法及研究进展.沉积学报,2003,21(3):409～415
[9]徐亚军,杜远生,杨江海.沉积物物源分析研究进展.地质科技情报,2007,26(3):26～32
[10]汪正江,陈洪德,张锦泉.物源分析的研究与展望.沉积与特提斯地质,2000,20(4):104～110
[11]张琴,张满郎,朱筱敏等.准噶尔盆地阜东斜坡区侏罗纪物源分析.新疆石油地质,1999,20(6):501～504
[12]陈纯芳,邓浚茂,王德发.板桥凹陷沙三段沉积体系与物源分析.古地理学报,2001,3(1):55～62
[13]龚再升等编著.中国近海大油气田.北京:石油工业出版社,1997
[14]陈斯忠,宋建民,陈伟煌.对海上找气的思考.中国海上油气(地质),2003,17(3):153～159
[15]钟志洪,王良书,李绪宣等.琼东南盆地古近纪沉积充填演化及其区域构造意义.海洋地质与第四纪地质,2004,24(1):29～36
[16]孙家振,李兰斌编著.地震地质综合解释教程.湖北武汉:中国地质大学出版社,2002
[17]张琴,朱筱敏,张满郎.准噶尔盆地阜东斜坡区侏罗系地震相研究.石油大学学报(自然科学版),2001,25(1):72～76
[18]张万选,张厚福,曾洪流等.陆相地震地层学.山东东营:石油大学出版社,1993
[19]朱筱敏编著.层序地层学.山东东营:石油大学出版社,2000
[20]Zeng Hongliu,Robert G,Loucks and L Frank Brown Jr.Mapping sedi ment-dispersal patterns and associat-ed systems tracts in fourth-and fifth-order sequences using seismic sedi mentology:Example from Corpus Christi Bay,Texas.AAPG Bulletin,2007,91(7):981～1003
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