必须声明标量变量 "@Script_ID"。 阿尔及利亚韦德迈阿次盆地438B区块泥盆纪层序-岩相古地理特征-《地球科学与环境学报》
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[1]潘杨辉,郑荣才,胡诚,等.阿尔及利亚韦德迈阿次盆地438B区块泥盆纪层序-岩相古地理特征[J].地球科学与环境学报,2011,33(03):268-274.
 PAN Yang-hui,ZHENG Rong-cai,HU Cheng,et al.Characteristics of Sequence-lithofacies and Paleogeography of Devonian in Block 438B of Oued Mya Basin, Algeria[J].Journal of Earth Sciences and Environment,2011,33(03):268-274.
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阿尔及利亚韦德迈阿次盆地438B区块泥盆纪层序-岩相古地理特征(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第33卷
期数:
2011年第03期
页码:
268-274
栏目:
基础地质与矿产地质
出版日期:
2011-09-15

文章信息/Info

Title:
Characteristics of Sequence-lithofacies and Paleogeography of Devonian in Block 438B of Oued Mya Basin, Algeria
文章编号:
1672-6561(2011)03-0268-07
作者:
潘杨辉12郑荣才1胡诚1赵灿1
1.成都理工大学 油气藏地质及开发工程国家重点实验室,四川 成都 610059; 2.四川省核工业地质调查院,四川 成都 610061
Author(s):
PAN Yang-hui12ZHENG Rong-cai1HU Cheng1ZHAO Can1
1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu 610059, Sichuan, China; 2.Sichuan Institute of Nuclear Geology, Chengdu 610061, Sichuan, China
关键词:
层序岩相古地理储层泥盆纪韦德迈阿次盆地阿尔及利亚
Keywords:
sequence lithofacies and paleogeography reservoir Devonian Oued Mya Basin Algeria
分类号:
TE122.3+4;P539.2
DOI:
-
文献标志码:
A
摘要:
泥盆系是富含油气的阿尔及利亚韦德迈阿次盆地西北部438B区块重要的含油层位之一,可划分出2个三级层序,仅下部的SQ1层序保存较完整;泥盆系属于快速海侵缓慢海退的沉积旋回,由海侵、早期高位和晚期高位3个体系域叠加组成。在SQ1层序中相当体系域级别的地层单元在区域上具有良好的等时性,仅在研究区东、南部外侧构造隆起区明显变薄或局部缺失海侵体系域地层。各体系域中,早期高位体系域的障壁砂坝在纵向上具有更好的可比性,反映该体系域障壁砂坝砂体的发育层位和沉积厚度更稳定,砂体连通性和储集性更好,但上部的SQ2为仅保存部分海侵体系域沉积记录的残余层序。选择SQ1层序各体系域为等时地层单元编制层序-岩相古地理图,编图结果表明:438B区块泥盆纪具备向南东方向弧突的,由浅海陆棚、障壁岛、潟湖、潮坪组成的海湾地貌和分带性沉积格局;在各体系域继承性发展演化的分带性沉积格局中,以早期高位系域中的障壁砂坝和冲溢扇为最有利储层发育的层位、相带和部位。
Abstract:
Block 438B is located in the northwest of Oued Mya Basin, Algeria. Devonian stratum is one of the important oil-bearing formations in Block 438B.The stratum is divided into 2 three-order sequences, and only SQ1 sequence in the lower part is intact; Devonian stratum is rapid transgression-slow regression cycles, and is composed of TST, EHST and LHST. The stratigraphic units for the equivalent system tracts are very isochronous in SQ1 sequence, the structural high only outside the east and south part of the research area is thin or lose TST stratum. The comparability of barrier sand bank for EHST is better in vertical for all the system tracts, so the developing stratum and deposition thickness of barrier sand banks for EHST are more stable, and the connectivity and reservoir property of sandbodies are better, but SQ2 in the upper part is residual sequence only recording part sedimentary of TST. All the system tracts of SQ1 sequence are taken as isochronous stratigraphic units in order to draw the paleogeography map of sequence-lithofacies. The results show that there are estuarine physiognomy and zonation sedimentary, which distribut from northwest to southeast and is composed of shallow-sea continental shelf, barrier island, lagoon and tidal flat, during Devonian of Block 438B; barrier sand bank and washover fan in EHST are the most favorable reservoir facies in the zonation sedimentary pattern with inherited evolution of all the system tracts.

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备注/Memo

备注/Memo:
收稿日期:2010-10-08
基金项目: 国家科技重大专项研究项目(2008ZX05030-003-0)
作者简介: 潘杨辉(1981-),男,浙江东阳人,工程师,理学博士研究生,从事层序地层与沉积相研究。E-mail:pyh.001@163.com

更新日期/Last Update: 2011-09-20