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[1]王德英 薛永安 于海波 黄江波 张宏国 史盼盼 周园园.渤中凹陷斜坡类型与新近系油气成藏特征[J].中国海上油气,2019,31(04):9-18.[doi:10.11935/j.issn.1673-1506.2019.04.002 ]
 WANG Deying XUE Yongan YU Haibo HUANG Jiangbo ZHANG Hongguo SHI Panpan ZHOU Yuanyuan.Slope types and Neogene hydrocarbon accumulation characteristics of Bozhong sag in Bohai sea[J].China Offshore Oil and Gas,2019,31(04):9-18.[doi:10.11935/j.issn.1673-1506.2019.04.002 ]
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渤中凹陷斜坡类型与新近系油气成藏特征()
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《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第31卷
期数:
2019年04期
页码:
9-18
栏目:
油气勘探
出版日期:
2019-07-25

文章信息/Info

Title:
Slope types and Neogene hydrocarbon accumulation characteristics of Bozhong sag in Bohai sea
文章编号:
1673-1506(2019)04-0009-10
作者:
王德英 薛永安 于海波 黄江波 张宏国 史盼盼 周园园
(中海石油(中国)有限公司天津分公司 天津 300459)
Author(s):
WANG Deying XUE Yongan YU Haibo HUANG Jiangbo ZHANG Hongguo SHI Panpan ZHOU Yuanyuan
(CNOOC China Limited, Tianjin Branch, Tianjin 300459, China)
关键词:
渤海海域 渤中凹陷 斜坡类型 新近系 油气成藏特征 汇聚脊
Keywords:
Bohai sea area Bozhong sag slope type Neogene system hydrocarbon accumulation characteristics catchment ridge
分类号:
TE121.2
DOI:
10.11935/j.issn.1673-1506.2019.04.002
文献标志码:
A
摘要:
渤海海域新近系是最重要的勘探层系,多年的勘探实践表明深层汇聚脊、基底形态、斜坡产状等共同控制了浅层的油气富集。本文主要依据洼中隆起型汇聚脊特征及其与斜坡产状的关系,结合基底形态将渤中凹陷区斜坡划分为14个二级斜坡带。不同类型斜坡带的浅层成藏模式、成藏特征分化性较大,其中顺脊斜坡区运移条件好,油气在高凸起区大规模聚集成藏,斜坡区难以大规模成藏,但是在切脊断裂强发育区可以形成中小型商业聚集; 横向脊宽缓斜坡区是浅层油气富集的主要部位,具有多个交叉脊成排成带富集的特征; 挠曲坡折晚期断裂相对不发育,深层沉积砂体发育,油气主要富集在深层,一部分可以侧向运移在斜坡高部位馆陶组成藏,但规模相对较小。勘探实践表明,斜坡类型及其浅层油气富集规律的研究可以有效指导渤海海域斜坡区勘探,指明下步方向,并为类似的断陷盆地浅层勘探提供借鉴。
Abstract:
Neogene system in Bohai sea area is the most important exploration strata. The exploration practice in many years shows that the deep catchment ridge, basement shape and slope occurrence control the accumulation of oil and gas in shallow layers. In this paper, according to the characteristics of uplift catchment ridge and its relationship with slope occurrence and combined with the basement shape, the slope in Bozhong sag is divided into 14 secondary slope belts. The shallow reservoir forming modes and reservoir forming characteristics of different slope belt types have great differentiation, in which the migration conditions along the ridge slope area are good, the oil and gas accumulate into reservoirs on a large scale in the high protruding area. It is difficult to form large scale reservoirs in the slope area, but the small and medium-size commercial accumulations can be formed in the high density faults area tangent to the ridge. The transverse ridge wide gentle slope area is the main part of shallow oil and gas enrichment, which has the characteristics of enrichment of multiple cross ridges in rows and belts. The late faults of flexure slope are relatively undeveloped, but the deep sedimentary sand bodies are developed. The oil and gas are mainly enriched in the deep layer, and some of them can migrate laterally to form reservoirs at the high part of the slope in the Guantao Formation, but the scale is relatively small. The exploration practice shows that the study of slope type and its shallow oil and gas enrichment law can effectively guide the exploration in the slope area of Bohai Sea, point out directions for the next steps, and provide reference for the shallow exploration of similar fault basins.

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备注/Memo

备注/Memo:
*“十三五”国家科技重大专项“近海大中型油气田形成条件及勘探技术(三期)(编号:2016ZX05024-002-006)”部分研究成果。 第一作者简介: 王德英,女,高级工程师,1998年毕业于长春科技大学沉积学与岩相古地理专业,获硕士学位,主要从事沉积学与石油地质方面的研究。地址:天津市滨海新区海川路2121号(邮编:300459)。E-mail:wangdy2@cnooc.com.cn。 通信作者简介: 薛永安,男,博士,教授级高级工程师,现任渤海石油管理局总地质师,长期从事海上油气勘探研究和管理工作。地址:天津市滨海新区海川路2121号渤海石油管理局大厦A座(邮编:300459)。E-mail:xueya@cnooc.com.cn。
更新日期/Last Update: 1900-01-01