陆相盆地滩坝砂体沉积特征及其形成与保存条件&mdash;&mdash;以青海湖现代沉积为例

王菁; 李相博; 刘化清; 张志杰; 完颜容; 王宏波; 黄军平

doi:10.14027/j.issn.1000-0550.2019.038

ISSN 1000-0550 CN 62-1038/P

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陆相盆地滩坝砂体沉积特征及其形成与保存条件——以青海湖现代沉积为例

王菁, 李相博, 刘化清, 张志杰, 完颜容, 王宏波, 黄军平

文章导航 > 沉积学报 > 2019 > 37(5): 1016-1030

王菁, 李相博, 刘化清, 张志杰, 完颜容, 王宏波, 黄军平. 陆相盆地滩坝砂体沉积特征及其形成与保存条件——以青海湖现代沉积为例[J]. 沉积学报, 2019, 37(5): 1016-1030. doi: 10.14027/j.issn.1000-0550.2019.038

引用本文:

WANG Jing, LI XiangBo, LIU HuaQing, ZHANG ZhiJie, WANYAN Rong, WANG HongBo, HUANG JunPing. Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake[J]. Acta Sedimentologica Sinica, 2019, 37(5): 1016-1030. doi: 10.14027/j.issn.1000-0550.2019.038

Citation:

WANG Jing, LI XiangBo, LIU HuaQing, ZHANG ZhiJie, WANYAN Rong, WANG HongBo, HUANG JunPing. Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake[J]. Acta Sedimentologica Sinica, 2019, 37(5): 1016-1030. doi: 10.14027/j.issn.1000-0550.2019.038

引用本文:

Citation:

WANG Jing, LI XiangBo, LIU HuaQing, ZHANG ZhiJie, WANYAN Rong, WANG HongBo, HUANG JunPing. Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake[J]. Acta Sedimentologica Sinica, 2019, 37(5): 1016-1030. doi: 10.14027/j.issn.1000-0550.2019.038

陆相盆地滩坝砂体沉积特征及其形成与保存条件——以青海湖现代沉积为例

doi: 10.14027/j.issn.1000-0550.2019.038

1.
中国石油勘探开发研究院西北分院, 兰州 730020;
2.
中国石油勘探开发研究院, 北京 100083

基金项目: 国家自然科学基金项目（41772099）；中国石油天然气股份公司重大科技项目（2016B-0302）；国家科技重大专项（2017ZX05001-003）

详细信息

作者简介:
王菁,女,1986年出生,硕士,石油地质,E-mail:wangjing2883@126.com

中图分类号: P512.2

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文章访问数: 489
HTML全文浏览量: 25
PDF下载量: 175
被引次数: 0

Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake

1.
Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China;
2.
Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

Funds: National Natural Science Foundation of China, No. 41772099; Major Science and Technology Projects of China Petroleum and Natural Gas Corporation, No.2016B-0302; National Science and Technology Major Project, No.2017ZX05001-003

摘要

摘要: 滩坝砂体由于经历了湖浪作用的反复淘洗物性良好，成为近年来石油勘探界关注的热点。通过对我国最大的内陆湖泊（青海湖）现代沉积特征的实地考察，从沉积环境、水动力及沉积特征等诸多方面建立了滨岸滩坝沉积的综合鉴别特征，指出低角度冲洗交错层理、反粒序（滩）、正粒序（坝）以及不含泥质等特征是识别滩坝砂体的典型标志。分析结果表明：物源—水动力—湖盆底形—湖岸线—湖平面（基准面）是决定青海湖滩坝是否发育（形成+保存）的主控因素，其中物源为滩坝形成提供了物质基础，水动力为沉积物改造及滩坝形成提供了源动力，湖盆底形与湖岸线决定了滩坝形成的平面位置与规模范围，湖平面（基准面）的升降变化决定了已形成滩坝沉积保存与否的地质命运。陆源滩坝砂体的形成较为容易，但保存较难，只要具备物源、湖盆底形及水动力等基本条件，低位域、高位域及湖侵域都可能形成滩坝砂体，但只有位于长期基准面旋回早期或三级层序湖侵期的滩坝沉积才能得到较好的保存。这对我国陆相盆地岩性油气藏勘探开发具有一定借鉴意义。
- 滩坝砂体 /
- 现代沉积 /
- 形成机理 /
- 保存条件 /
- 青海湖
Abstract: Beach and bar sandbodies are an important research area in the petroleum exploration industry,since they are the result of repeated elutriation by wave action and are therefore favorable to the development of hydrocarbon reservoirs. A field investigation of modern sediments at Qinghai Lake (the largest inland lake in China)has established detailed identifying markers for beach and bar sandbodies from many aspects,such as sedimentary environment,hydrodynamics and sedimentation characteristics. Low-angle forewash cross-bedding,inversely graded (beach sand), normally graded (bar sand)and the absence of mud are typical for identifying signs. Further analysis showed that the material source and provenance,hydrodynamic forces,bottom morphology of the lake basin,lake shoreline and lake base level cycles are the main controlling factors marking the development,both formation and preservation,of beach and bar sandbodies. The provenance supplies the material base for beach and bar formation,and hydrodynamic forces boost sediment reshaping and beach and bar formation. The bottom morphology and shoreline of a lake basin determines its position in plan,and the extent of beach and bar formation;fluctuations in the lake base level determine the extent to which the beach and bar formations have been preserved. This study also points out that the formation of beach and bar sandbodies in a lacustrine basin occurs relatively easily,but their preservation is problematic. When suitable conditions of provenance,lake basin bottom morphology and hydrodynamics are present,low-stand system tracts,high-stand system tracts and lacustrine transgressive system tracts may form beach and bar sand deposits,but only the sand deposits at the early stage of the second order sequence,or at the lacustrine transgression phase of the third-order sequence,are well-preserved. Since beach and bar sand deposits are universal in continental lacustrine basins,this study has a particular reference significance for oil and gas reservoir lithology for exploration and development in continental basins in China.
- beach and bar /
- modern sedimentation /
- formation mechanism /
- preservation condition /
- Qinghai Lake

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[1]	刘作松, 易雪斐, 吉霞, 向建波. 地震触发下砂岩侵入体变形模拟实验研究 . 沉积学报, 2023, 41(5): 1530-1542. doi: 10.14027/j.issn.1000-0550.2022.113
[2]	赵俊威, 王恒. 海相砂质滩坝沉积构型及表征研究进展综述 . 沉积学报, 2023, (): -. doi: 10.14027/j.issn.1000-0550.2023.108
[3]	易定红. 柴达木盆地台南地区第四系七个泉组滩坝砂体粒度特征及水动力条件 . 沉积学报, 2023, (): -. doi: 10.14027/j.issn.1000-0550.2023.114
[4]	王金艺, 金振奎. 微生物白云岩形成机理、识别标志及存在的问题 . 沉积学报, 2022, 40(2): 350-359. doi: 10.14027/j.issn.1000-0550.2020.135
[5]	薛红盼, 曾方明. 青海湖东岸全新世风成沉积地球化学特征及其古气候意义 . 沉积学报, 2021, 39(5): 1198-1207. doi: 10.14027/j.issn.1000-0550.2020.066
[6]	马茗茗, 王昌勇, 许兴斌, 王小宇, 费瑛, 李雅楠. Adams和Couch法古盐度恢复结果的可靠性检验——以青海湖布哈河口区沉积物为例 . 沉积学报, 2019, 37(6): 1224-1233. doi: 10.14027/j.issn.1000-0550.2019.009
[7]	商晓飞, 郭颖, 侯加根, 段太忠, 赵磊. 湖泊滨岸砂坝内部结构特征剖析及其地质意义——以峡山湖现代砂坝沉积为例 . 沉积学报, 2018, 36(5): 877-889. doi: 10.14027/j.issn.1000-0550.2018.067
[8]	张昌民, 朱锐, 刘江艳, 杜家元, 李少华, 李小平. 珠江磨刀门河口交杯四沙现代沉积特征及其形成机理 . 沉积学报, 2016, 34(4): 662-669. doi: 10.14027/j.cnki.cjxb.2016.04.006
[9]	朱世发, 刘欣, 朱筱敏, 万策, 尤新才, 吉林, 杜建鹏. 准噶尔盆地克—百逆掩断裂带上下盘储层差异性及其形成机理 . 沉积学报, 2015, 33(1): 194-201. doi: 10.14027/j.cnki.cjxb.2015.01.020
[10]	韩元红, 李小燕, 王琪, 郝乐伟, 田兵, 马晓峰, 朱军, 廖朋, 吉鸿杰, 马东旭. 青海湖水动力特征对滨湖沉积体系的控制 . 沉积学报, 2015, 33(1): 97-104. doi: 10.14027/j.cnki.cjxb.2015.01.010
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陆相盆地滩坝砂体沉积特征及其形成与保存条件——以青海湖现代沉积为例

doi: 10.14027/j.issn.1000-0550.2019.038

1. 中国石油勘探开发研究院西北分院, 兰州 730020;

2. 中国石油勘探开发研究院, 北京 100083

基金项目: 国家自然科学基金项目（41772099）；中国石油天然气股份公司重大科技项目（2016B-0302）；国家科技重大专项（2017ZX05001-003）

作者简介:
王菁,女,1986年出生,硕士,石油地质,E-mail:wangjing2883@126.com

收稿日期: 2019-01-22
修回日期: 2019-05-31
刊出日期: 2019-10-10

中图分类号: P512.2

关键词:

摘要: 滩坝砂体由于经历了湖浪作用的反复淘洗物性良好，成为近年来石油勘探界关注的热点。通过对我国最大的内陆湖泊（青海湖）现代沉积特征的实地考察，从沉积环境、水动力及沉积特征等诸多方面建立了滨岸滩坝沉积的综合鉴别特征，指出低角度冲洗交错层理、反粒序（滩）、正粒序（坝）以及不含泥质等特征是识别滩坝砂体的典型标志。分析结果表明：物源—水动力—湖盆底形—湖岸线—湖平面（基准面）是决定青海湖滩坝是否发育（形成+保存）的主控因素，其中物源为滩坝形成提供了物质基础，水动力为沉积物改造及滩坝形成提供了源动力，湖盆底形与湖岸线决定了滩坝形成的平面位置与规模范围，湖平面（基准面）的升降变化决定了已形成滩坝沉积保存与否的地质命运。陆源滩坝砂体的形成较为容易，但保存较难，只要具备物源、湖盆底形及水动力等基本条件，低位域、高位域及湖侵域都可能形成滩坝砂体，但只有位于长期基准面旋回早期或三级层序湖侵期的滩坝沉积才能得到较好的保存。这对我国陆相盆地岩性油气藏勘探开发具有一定借鉴意义。

English Abstract

Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake

1. Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China;

2. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

Received Date: 2019-01-22
Rev Recd Date: 2019-05-31
Publish Date: 2019-10-10

Keywords:

Abstract: Beach and bar sandbodies are an important research area in the petroleum exploration industry,since they are the result of repeated elutriation by wave action and are therefore favorable to the development of hydrocarbon reservoirs. A field investigation of modern sediments at Qinghai Lake (the largest inland lake in China)has established detailed identifying markers for beach and bar sandbodies from many aspects,such as sedimentary environment,hydrodynamics and sedimentation characteristics. Low-angle forewash cross-bedding,inversely graded (beach sand), normally graded (bar sand)and the absence of mud are typical for identifying signs. Further analysis showed that the material source and provenance,hydrodynamic forces,bottom morphology of the lake basin,lake shoreline and lake base level cycles are the main controlling factors marking the development,both formation and preservation,of beach and bar sandbodies. The provenance supplies the material base for beach and bar formation,and hydrodynamic forces boost sediment reshaping and beach and bar formation. The bottom morphology and shoreline of a lake basin determines its position in plan,and the extent of beach and bar formation;fluctuations in the lake base level determine the extent to which the beach and bar formations have been preserved. This study also points out that the formation of beach and bar sandbodies in a lacustrine basin occurs relatively easily,but their preservation is problematic. When suitable conditions of provenance,lake basin bottom morphology and hydrodynamics are present,low-stand system tracts,high-stand system tracts and lacustrine transgressive system tracts may form beach and bar sand deposits,but only the sand deposits at the early stage of the second order sequence,or at the lacustrine transgression phase of the third-order sequence,are well-preserved. Since beach and bar sand deposits are universal in continental lacustrine basins,this study has a particular reference significance for oil and gas reservoir lithology for exploration and development in continental basins in China.

引用本文:

Citation:

WANG Jing, LI XiangBo, LIU HuaQing, ZHANG ZhiJie, WANYAN Rong, WANG HongBo, HUANG JunPing. Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake[J]. Acta Sedimentologica Sinica, 2019, 37(5): 1016-1030. doi: 10.14027/j.issn.1000-0550.2019.038

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陆相盆地滩坝砂体沉积特征及其形成与保存条件——以青海湖现代沉积为例

doi: 10.14027/j.issn.1000-0550.2019.038

作者简介:
王菁,女,1986年出生,硕士,石油地质,E-mail:wangjing2883@126.com

计量

Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake

计量

目录

陆相盆地滩坝砂体沉积特征及其形成与保存条件——以青海湖现代沉积为例

doi: 10.14027/j.issn.1000-0550.2019.038

1. 中国石油勘探开发研究院西北分院, 兰州 730020;

2. 中国石油勘探开发研究院, 北京 100083

作者简介:
王菁,女,1986年出生,硕士,石油地质,E-mail:wangjing2883@126.com

English Abstract

Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake

1. Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China;

2. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

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陆相盆地滩坝砂体沉积特征及其形成与保存条件——以青海湖现代沉积为例

doi: 10.14027/j.issn.1000-0550.2019.038

作者简介: 王菁,女,1986年出生,硕士,石油地质,E-mail:wangjing2883@126.com

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Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake

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出版历程

目录

陆相盆地滩坝砂体沉积特征及其形成与保存条件——以青海湖现代沉积为例

doi: 10.14027/j.issn.1000-0550.2019.038

1. 中国石油勘探开发研究院西北分院, 兰州 730020; 2. 中国石油勘探开发研究院, 北京 100083

作者简介: 王菁,女,1986年出生,硕士,石油地质,E-mail:wangjing2883@126.com

English Abstract

Study of the Development and Preservation of Lacustrine Beach and Bar Based on the Modern Sedimentary Characteristics of Qinghai Lake

1. Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China; 2. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
王菁,女,1986年出生,硕士,石油地质,E-mail:wangjing2883@126.com

1. 中国石油勘探开发研究院西北分院, 兰州 730020;

2. 中国石油勘探开发研究院, 北京 100083

作者简介:
王菁,女,1986年出生,硕士,石油地质,E-mail:wangjing2883@126.com

1. Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China;

2. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China