加蓬海岸盆地南、北次盆成藏特征对比

现代地质 ›› 2012, Vol. 26 ›› Issue (1): 154-159.

加蓬海岸盆地南、北次盆成藏特征对比

邱春光¹, 刘延莉²

1中海油研究总院，北京，100027；2中国石化石油勘探开发研究院，北京，100083

收稿日期:2011-04-25 修回日期:2011-10-20 出版日期:2012-02-22 发布日期:2012-02-25
作者简介:邱春光，男，工程师，1979年出生，矿产普查与勘探专业，主要从事海外油气地质方面的研究工作。Email: qiuchg@cnooc.com.cn。
基金资助:
国家科技重大专项项目(2011ZX05030-001)。

Comparative Study of North and South Subbasins ofGabon Coastal Basin

QIU Chun-Guang^-1, LIU Yan-Chi^-2

1CNOOC Research Institute, Beijing,100027, China;
2Research Institute of Petroleum Exploration and Production, SINOPEC, Beijing,100083, China

Received:2011-04-25 Revised:2011-10-20 Online:2012-02-22 Published:2012-02-25

摘要/Abstract

摘要：

加蓬海岸盆地属于被动大陆边缘盆地。盆地沉积盖层主要由白垩系、古近系和新近系组成，沉积地层组合具有明显的三分性，包括早白垩世盐下层系、早白垩世晚期阿普特期盐膏层和晚白垩世至新近纪盐上层系。根据目前的油气发现，北加蓬主要富集盐上油气资源，南加蓬主要富集盐下油气资源。从构造沉积背景、油气地质条件、油气发现规模、油气平面分布、油气勘探潜力5方面对南、北次盆进行对比，分析南、北次盆的油气聚集差异，结合勘探现状分析其勘探潜力，并指出南加蓬次盆勘探难点为圈闭识别，北加蓬次盆的勘探难点是砂体预测。

关键词: 加蓬海岸盆地, 盐下层系, 盐上层系, 圈闭识别, 砂体预测

Abstract:

The Gabon coastal basin is the passive margin basin whose sedimentary cover includes the Cretaceous, the Paleogene and the Neogene. The sedimentary strata are divided into three parts: presalt strata, salt strata and postsalt strata. According to the exploration status, postsalt petroleum system is mainly located in the north of subbasin and presalt petroleum system in the south of subbasin. The paper compares the two subbasins in the fields of the geology background, petroleum geology parameter, size and the exploration potential. The research result is that the key for the south subbasin exploration is trap identification and the key for the north subbasin exploration is sand prediction. 

Key words: Gabon coastal basin, presalt strata, postsalt strata;trap identification, sand prediction

邱春光, 刘延莉. 加蓬海岸盆地南、北次盆成藏特征对比[J]. 现代地质, 2012, 26(1): 154-159.

QIU Chun-Guang, LIU Yan-Chi. Comparative Study of North and South Subbasins ofGabon Coastal Basin[J]. Geoscience, 2012, 26(1): 154-159.