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[1]田立新 张向涛 彭光荣 杜晓东 吴 静 蔡国富 朱定伟.珠江口盆地阳江凹陷石油地质特征及成藏主控因素[J].中国海上油气,2020,32(01):13-22.[doi:10.11935/j.issn.1673-1506.2020.01.002]
　TIAN Lixin ZHANG Xiangtao PENG Guangrong DU Xiaodong WU Jing CAI Guofu ZHU Dingwei.Petroleum geological characteristics and main controlling factors of the Yangjiang sag in Pearl River Mouth Basin[J].China Offshore Oil and Gas,2020,32(01):13-22.[doi:10.11935/j.issn.1673-1506.2020.01.002]
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珠江口盆地阳江凹陷石油地质特征及成藏主控因素()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第32卷
期数:
2020年01期
页码:
13-22
栏目:
油气勘探
出版日期:
2020-01-15

文章信息/Info

Title:
Petroleum geological characteristics and main controlling factors of the Yangjiang sag in Pearl River Mouth Basin
文章编号:
1673-1506(2020)01-0013-10
作者:
田立新 张向涛 彭光荣 杜晓东 吴 静 蔡国富 朱定伟
(中海石油(中国)有限公司深圳分公司 广东深圳 518054)
Author(s):
TIAN Lixin ZHANG Xiangtao PENG Guangrong DU Xiaodong WU Jing CAI Guofu ZHU Dingwei
(CNOOC China Limited, Shenzhen Branch, Shenzhen, Guangdong 518054, China)
关键词:
珠江口盆地;  阳江凹陷;  石油地质特征;  控藏因素;  成藏模式
Keywords:
Pearl River Mouth Basin;  Yangjiang sag;  petroleum geological characteristics;  reservoir controlling factors;  accumulation mode
分类号:
TE122.1
DOI:
10.11935/j.issn.1673-1506.2020.01.002
文献标志码:
A
摘要:
阳江凹陷为珠江口盆地近期获得油气勘探重大突破的新区。基于区域地质背景、地震、钻井及地球化学等资料,对阳江凹陷的烃源岩、储层、圈闭和油气藏等石油地质特征,以及控藏因素和成藏模式进行了总结与分析,结果表明:阳江东凹、西凹烃源岩类型具有较大差异,东凹以文昌组中深湖相烃源岩为主,西凹则以恩平组浅湖-沼泽相为主; 阳江东凹、西凹主要目的层段储层沉积特征差异亦较大,其中东凹主要目的层段珠江组-韩江组储层为古珠江三角洲前缘水下分流河道砂、河口坝砂,具中高孔、中高渗特征; 阳江凹陷断背斜、断鼻、断块等多种构造圈闭主要发育于控洼断裂附近,圈闭形态较好,成藏模式为受断裂通源能力及圈闭有效性影响的“源-断-圈” 耦合近源成藏。阳江凹陷油气勘探的重大突破,开辟了珠江口盆地油气勘探新战场,对其他地区的新区勘探具有重要指导意义。
Abstract:
The Yangjiang Sag is a new area that has recently achieved major breakthroughs in oil and gas exploration in the Pearl River Mouth Basin. Based on the regional geological settings, seismic, drilling, and geochemical data, the petroleum geological characteristics such as source rocks, reservoirs, traps, and oil and gas reservoirs in Yangjiang sag, as well as the reservoir-controlling factors and accumulation modes were summarized and analyzed. The results suggest that there are obvious differences in the types of source rocks in the Yangjiang East sag and the West sag. The East sag is dominated by the mid-deep facies source rocks in the Wenchang Formation, and the West sag is dominated by the shallow lake-marsh facies in the Enping Formation. The sedimentary characteristics of the reservoirs in the main target sections of the West and East sags are also quite different. Among them, the Pearl River Formation-Hanjiang Formation reservoirs in the main target sections of the East sag are the submarine distributary channel sands and estuary dam sands in the paleo- Pearl River delta front, showing the medium-high porosity characteristics. Various structural traps such as fault anticline, fault nose, and fault block in the Yangjiang sag were mainly developed near the subsag-controlling faults. The trap morphology is good, and the accumulation mode is the “source-fault-trap” coupled near-source accumulation affected by the ability of faults-sources connectivity and the effectiveness of traps. The major breakthrough in oil and gas explorations of the Yangjiang sag has opened up a new battlefield for oil and gas exploration in the Pearl River Mouth Basin, and is of huge guidance for the new areas exploration in other regions.

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备注/Memo

备注/Memo:
*“十三五”国家科技重大专项“南海东部海域勘探新领域及关键技术(编号:2016ZX05024-004)”部分研究成果。 第一作者简介: 田立新,男,教授级高级工程师,2000年毕业于原石油大学(北京),获博士学位,现主要从事油气勘探综合研究与管理工作。地址:广东省深圳市南山区后海滨路(深圳湾段)3168号中海油大厦A座(邮编:518054)。E-mail:tianlx@cnooc.com.cn。收稿日期:2019-09-24
更新日期/Last Update: 2020-01-15