孟加拉湾深海扇石油地质特征及其勘探潜力

吴义平; 张艳敏; 田作基; 李富恒; 王红平

doi:10.11781/sysydz201301048

孟加拉湾深海扇石油地质特征及其勘探潜力

doi: 10.11781/sysydz201301048

1.
中国石油勘探开发研究院, 北京 100083
2. 河南油田地质录井公司, 河南南阳 473132
3. 中国石油杭州地质研究院, 杭州 310023

基金项目: 国家油气重大专项 "全球常规油气资源潜力分析与未来战略选区" (2008ZX05028-001)资助。

详细信息

作者简介:
吴义平(1973- ),男,硕士,工程师,从事常规油气资源评价及油气勘探规划等方面的研究。E-mail:wuyiping01@petrochina.com.cn。

中图分类号: TEl22
计量
- 文章访问数: 2124
- HTML全文浏览量: 49
- PDF下载量: 1191
- 被引次数: 0
出版历程
- 收稿日期: 2012-05-22
- 修回日期: 2012-12-19
- 刊出日期: 2013-01-28

Petroleum geologic features and exploration potentials in deep-sea fan, Bay of Bengal

1.
Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China
2. Geological Mud Logging Company of Henan Oilfield Company, SINOPEC, Nanyang, Henan 473132, China
3. Hangzhou Research Institute of Geology, PetroChina, Hangzhou, Zhejiang 310023, China

摘要

摘要: 孟加拉湾深海扇构成了深海层序LST的主体,沉积了巨厚的第三系复合体砂体,可识别出5套层序界面。该深海扇中新统Bhuban组、渐新统Jenam组、始新统Kopili组3套烃源岩生烃期分别为早上新世(5 Ma)、渐新世末(29.3 Ma)、古近纪末(23.3 Ma)。储层以深水浊积砂岩为主,具有多期垂向叠置的沉积模式。渐新统-中新统储盖组合为最有利的储盖组合。垂向断层、不整合面、连续分布的砂体构成了良好的输导体系,其成藏模式为"下生上储型"地层或复合气藏类型。孟加拉湾深水区主要以天然气为主, 其有利勘探层系为恒河水系中上部扇带和印度东部海域中上部扇带等环孟加拉湾深水盆地第三系加积局限型水道复合体,以及中下部扇带"无底水道"附近潮道天然冲积堤砂体。
- 层序界面 /
- 石油地质特征 /
- 成藏条件 /
- 油气勘探潜力 /
- 深海扇 /
- 孟加拉湾
Abstract: The deep-sea fan of the Bay of Bengal served as the main body for the LST of deep sequence. Tertiary complex sand bodies with giant thickness deposited. 5 sequence boundaries were identified. 3 sets of source rocks in the Bhuban Formation of Miocene, the Jenam Formation of Oligocene and the Kopili Formation of Eocene gave birth to hydrocarbon during the early Pleiocene (5 Ma), the end of Oligocene (29.3 Ma) and the end of Paleogene (23.3 Ma), respectively. Deepwater turbidity sandstones worked as the main reservoir, and were featured by a depositional model of multi-period vertical overlap. Oligocene-Miocene reservoir and seal assemblage was the most favorable. Vertically, faults, unconformities and continuously-distributed sand bodies provided good pathways for petroleum migration. The possible accumulation models belong to stratigraphic reservoirs of "above-generation and below-storage" or complex ones. Natural gas is the dominant product in the deep water zone of the Bay of Bengal. Therefore, the Tertiary aggradational confined channel complexes in the deep-water basin of the Bay Rim of Bengal, such as the upper-middle deep water fans of the Ganges river system and the Indian eastern sea, as well as the natural alluvial sand embankments near to "bottomless channel" in the middle-lower deep water fans are considered as the most potential zones.
- sequence boundary /
- petroleum geological characteristics /
- accumulation condition /
- petroleum exploration potential /
- deep-sea fan /
- Bay of Bengal

HTML全文

参考文献(20)

[1]	李大伟,李德生,陈长民,等.深海扇油气勘探综述[J].中国海上油气,2007,29(1):18-24.
[2]	Vall P R,Mitchum R M,Thompson S.Seismic stratigraphy and global changes of sea level[M]//Payton C E.Seismic stratigraphy:application to hydrocarbon exploration,AAPG Memoir 26.Tulsa,OK,US:AAPG Press,1977:63-81.
[3]	Weimer P.Sequence stratigraphy,facies geometries,and depositional history of the Mississippi Fan,Gulf of Mexico[J].AAPG Bulletin,1990,74:425-453.
[4]	李祥辉,王成善,金玮,等.深海沉积理论发展及其在油气勘探中的意义[J].沉积学报,2009,27(1):77-83.
[5]	钟广法.海平面变化的原因及结果[J].地球科学进展,2003,18(5):706-712.
[6]	Miller K G.The role of ODP in understanding the causes and effects of global sea level change[J].JOIDES Journal,2002,28(1):23-28.
[7]	Mahmood Alam,Mustafa Alam M,Curry J R,et al.Overview of Relationship between sedimentary geology and regional tectonic framework of the Bengal basin and its filling history[J].Sedimentary Geology,2003,155:179-208.
[8]	Weber M E,Wiedicke M H,Kudrass H R,et al.Active growth of the Bengal Fan during sea-level rise and highstan[J].Geology,1997,25(4):315-318.
[9]	Walker R G.Deep water sandstone facies and ancient submarine fan:models for exploration for stratigraphic traps[J].AAPG Bulletin,1978,62(8):932-966.
[10]	Schwenk T,Spieβ V,Breitzke M,et al.The architecture and evolution of the Middle Bengal Fan in vicinity of the active channel-levee system imaged by high-resolution seismic data[J].Marine and Petroleum Geology,2005,22:637-656.
[11]	吴嘉鹏,王英民,马贵明,等.孟加拉扇某区块地层层序划分及典型地震相识别[J].岩性油气藏,2010,22(2):69-73.
[12]	徐兆辉,刘震,王露,等.层序地层学在泰国湾盆地柬埔寨海域D区块的应用[J].岩性油气藏,2009,21(3):12-17.
[13]	Shamsuddin A H M,Brown T A,Lee S,et al.Petroleum systems of Bangladesh.SEAPEX Exploration Conference 2001,Orchard Hotel,Singapore 4th-6th April 2001.
[14]	Curiale J A,Covington G H,Shamsuddin A H M,et al.Origin of petroleum in Bangladesh[J].AAPG Bulletin,2002,86(4):625-652.
[15]	方念乔.Riviere 粒度资料解释法在孟加拉深水扇积物流体动力分析中的应用[J].地质论评,1992(7):344-351.
[16]	Normark W R.Fan valleys channels and depositional lobes on modern submarine fan:characters for recognition of sandy turbidities environments[J].AAPG Bulletin,1979,62:812-931.
[17]	孙辉,范国章,吕福亮,等.孟加拉湾缅甸若开盆地上新统斜坡水道复合体沉积特征[J].沉积学报,2010,22(2):69-73.
[18]	Stahl W J.Carbon and nitrogen isotopes in hydrocarbon research and exploration[J].Chemical Geology,1977,20(2):121-149.
[19]	Stahl W J.Carbon isotope fractionation in natural gases[J].Nature,1974,251(5471):134-135.
[20]	Schoell M.The hydrogen and carbon isotopic composition of methane from natural gases of various origins[J].Geochemical et Cosmochimica Acta,1980,44(5):649-661.

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 2124
HTML全文浏览量: 49
PDF下载量: 1191
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

孟加拉湾深海扇石油地质特征及其勘探潜力

doi: 10.11781/sysydz201301048

作者简介:
吴义平(1973- ),男,硕士,工程师,从事常规油气资源评价及油气勘探规划等方面的研究。E-mail:wuyiping01@petrochina.com.cn。

计量

Petroleum geologic features and exploration potentials in deep-sea fan, Bay of Bengal

计量

目录

留言板

孟加拉湾深海扇石油地质特征及其勘探潜力

doi: 10.11781/sysydz201301048

作者简介: 吴义平(1973- ),男,硕士,工程师,从事常规油气资源评价及油气勘探规划等方面的研究。E-mail:wuyiping01@petrochina.com.cn。

计量

出版历程

Petroleum geologic features and exploration potentials in deep-sea fan, Bay of Bengal

计量

出版历程

目录

作者简介:
吴义平(1973- ),男,硕士,工程师,从事常规油气资源评价及油气勘探规划等方面的研究。E-mail:wuyiping01@petrochina.com.cn。