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石油实验地质  2020, Vol. 42 Issue (2): 233-240    DOI: 10.11781/sysydz202002233
盆地·油藏 本期目录 | 过刊浏览 |
巴西坎波斯盆地A区块盐下构造特征及其对油气分布的影响
赵文芳
中国石化集团 国际石油勘探开发有限公司, 北京 100029
Tectonic controls on the pre-salt hydrocarbon distribution in block A of Campos Basin, Brazil
ZHAO Wenfang
SINOPEC International Petroleum Exploration and Production Corporation, Beijing 100029, China
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摘要: 位于巴西深海坎波斯(Campos)盆地南部的A区块,自晚侏罗世以来经历了多期构造运动,盐下构造特征复杂。结合最新3D地震资料和钻井资料,对该区盐下地层的地质属性、断裂发育及构造演化进行了分析。A区块盐下地层识别出4个地震反射层和3套地震层序;经历了裂谷阶段、倾斜和剥蚀阶段以及热沉降阶段3个构造演化阶段,主要发育正断层,在平面上呈NE向和NNE向展布,受构造运动影响发育了一条NW—SE向转换断层,控制着正断层展布。最后探讨了构造运动对该区油气分布的影响,以期为A区块和坎波斯盆地盐下油气勘探提供科学依据。
关键词 盐下地震层序断裂特征构造演化油气分布坎波斯盆地    
Abstract:Block A in the southern Campos Basin in the deep water of Brazil has complicated pre-salt structures as a result of the Late Jurassic tectonic activity. Based on new 3D seismic and drilling data, the geological attributes, fault development and tectonic evolution of pre-salt in block A were reviewed. Four seismic reflection layers and three seismic sequences were identified in the pre-salt section. Block A also experienced three stages of tectonic evolution, including rifting, erosion and tilting as well as thermal subsidence. Additionally, NE and NNE normal faults are well developed in this region. Tectonic activity also resulted in a NW-SE transform fault in the region and this controlled the distribution of normal faults. Finally, the influence of tectonic activity on hydrocarbon distribution was discussed and it is expected to provide scientific basis for the pre-salt exploration activities in block A and Campos Basin.
Key wordspre-salt    seismic sequence    fault feature    tectonic evolution    hydrocarbon distribution    Campos Basin
收稿日期: 2020-01-08      出版日期: 2020-03-21
ZTFLH:  TE121.2  
作者简介: 赵文芳(1987-),男,硕士,工程师,从事深海油气勘探开发研究工作。E-mail:wfzhao.sipc@sinopec.com。
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引用本文:

赵文芳 .巴西坎波斯盆地A区块盐下构造特征及其对油气分布的影响[J].石油实验地质,2020,42(2):233-240.
ZHAO Wenfang .Tectonic controls on the pre-salt hydrocarbon distribution in block A of Campos Basin, Brazil[J].Petroleum Geology & Experiment,2020,42(2):233-240.

链接本文:

http://www.sysydz.net/CN/10.11781/sysydz202002233      或      http://www.sysydz.net/CN/Y2020/V42/I2/233

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