辽中凹陷北洼古近系东二下亚段湖底扇沉积类型及时空演化机理分析

刘艺萌; 张藜; 黄晓波; 郑敬贵; 徐伟

doi:10.14027/j.issn.1000-0550.2019.007

ISSN 1000-0550 CN 62-1038/P

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辽中凹陷北洼古近系东二下亚段湖底扇沉积类型及时空演化机理分析

刘艺萌, 张藜, 黄晓波, 郑敬贵, 徐伟

文章导航 > 沉积学报 > 2019 > 37(6): 1280-1295

刘艺萌, 张藜, 黄晓波, 郑敬贵, 徐伟. 辽中凹陷北洼古近系东二下亚段湖底扇沉积类型及时空演化机理分析[J]. 沉积学报, 2019, 37(6): 1280-1295. doi: 10.14027/j.issn.1000-0550.2019.007

引用本文:

LIU YiMeng, ZHANG Li, HUANG XiaoBo, ZHENG JingGui, XU Wei. Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag[J]. Acta Sedimentologica Sinica, 2019, 37(6): 1280-1295. doi: 10.14027/j.issn.1000-0550.2019.007

Citation:

LIU YiMeng, ZHANG Li, HUANG XiaoBo, ZHENG JingGui, XU Wei. Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag[J]. Acta Sedimentologica Sinica, 2019, 37(6): 1280-1295. doi: 10.14027/j.issn.1000-0550.2019.007

引用本文:

Citation:

LIU YiMeng, ZHANG Li, HUANG XiaoBo, ZHENG JingGui, XU Wei. Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag[J]. Acta Sedimentologica Sinica, 2019, 37(6): 1280-1295. doi: 10.14027/j.issn.1000-0550.2019.007

辽中凹陷北洼古近系东二下亚段湖底扇沉积类型及时空演化机理分析

doi: 10.14027/j.issn.1000-0550.2019.007

中海石油 (中国) 有限公司天津分公司, 天津 300459

基金项目: 国家科技重大专项（2016ZX05024-003）

详细信息

作者简介:
刘艺萌,男,1987年出生,硕士,油气储层地质,E-mail:liuym33@cnooc.com.cn

中图分类号: P618.13

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文章访问数: 277
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PDF下载量: 77
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Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag

Tianjin Branch of CNOOC China Ltd., Tianjin 300459

Funds: National Science and Technology Major Project, No. 2016ZX05024-003

摘要

摘要: 辽中凹陷北洼古近系东二下亚段发育14期湖底扇沉积。基于湖底扇类型划分，对不同类型湖底扇沉积控制因素、成因机制及不同类型湖底扇之间的时空演化规律进行了研究。结合深水重力流沉积学理论，依据湖底扇水道发育程度、重力流流体性质，将研究区湖底扇分为非水道化—砂质碎屑流型湖底扇、非水道化—浊流型湖底扇和水道化湖底扇3种类型。非水道化—砂质碎屑流型和非水道化—浊流型湖底扇无明显下切水道，其中非水道化—砂质碎屑流型湖底扇整体富砂，非水道化—浊流型湖底扇整体富泥。水道化湖底扇发育明显下切水道，水道中发育砂质碎屑流富砂，水道外发育浊流富泥。物源富砂性及坡折带规模共同决定湖底扇沉积类型，含砂率大于30%的富砂型物源易形成非水道化湖底扇，含砂率小于30%的富泥型物源易形成水道化湖底扇。在富砂型物源背景下，当坡折规模较大时，因搬运距离远，砂泥分异充分，沉积非水道化—砂质碎屑流型和非水道化—浊流型两种湖底扇；当坡折规模较小时，砂泥分异不充分，只发育非水道化—砂质碎屑流型湖底扇。富砂物源滑塌为非粘性体，搬运过程中易与水融合，对底部呈片状冲刷，不易形成单一水道；富泥物源滑塌为黏性体，搬运过程中对底部冲刷集中，强度更大，易形成水道。
- 辽中凹陷 /
- 湖底扇 /
- 沉积类型 /
- 时空演化 /
- 重力流
Abstract: Fourteen sublacustrine fans are located in the northern sub-sag of the Liaozhong Sag in the lower Ed2 Formation. A systematic study of their sedimentary characteristics,genesis and space time evolution,combined with gravity flow sedimentation theory and the degree of development of water channels and the characteristics of the gravity flow fluid indicated three types of sedimentation:non-channelized sandy-debris flow(SDF) sublacustrine fans, non-channelized turbidite-current(TC) sublacustrine fans,and channelized fans. The SDF and TC fans have no evident channel;the SDF is rich in sand,and the TC fan is rich in mud. The sand in the channelized fan is mainly confined to the channel,and the mud is outside the channel. The main factors that determined the formation of the different fan types depends on(a) whether the source is rich in sand,and(b) the scale of the slope break belt. The nonchannelized fans were formed when the sand content exceeded 30% of the sand content of the channelized fans. Both SDF and TC fans were found when the scale of the slope break was relatively large and the transport distance was greatest. Only SDF fans were formed when the slope break was small. Sand-rich source material(non-viscous and easily mixed with water in slump tests) did not readily form channels. Mud-rich source material(viscous and not readily mixed with water in slump tests) formed obvious channels.
- Liaozhong Sag /
- sublacustrine fan /
- sedimentary type /
- space-time evolution /
- gravity flow

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[1]	杨仁超, 李作福, 张学才, 慈兴华, 方旭庆, 李传华, 刘海宁. 异重流沉积研究进展与展望 . 沉积学报, 2023, 41(6): 1917-1933. doi: 10.14027/j.issn.1000-0550.2023.008
[2]	彭雲, 于谦, 万洁颖, 杜智运, 王黎, 王韫玮, 高抒. 江苏海岸中部近岸沉积物重力流输运过程 . 沉积学报, 2023, 41(6): 1755-1767. doi: 10.14027/j.issn.1000-0550.2023.091
[3]	李华, 何明薇, 邱春光, 王英民, 何幼斌, 徐艳霞, 何瑞武. 深水等深流与重力流交互作用沉积（2000—2022年）研究进展 . 沉积学报, 2023, 41(1): 18-36. doi: 10.14027/j.issn.1000-0550.2022.027
[4]	张倚安, 李士祥, 田景春, 周新平, 杨田. 鄂尔多斯盆地上三叠统延长组长7段深水重力流沉积类型 . 沉积学报, 2021, 39(2): 297-309. doi: 10.14027/j.issn.1000-0550.2020.095
[5]	徐伟, 杜晓峰, 黄晓波, 宋章强, 李正宇. 混合沉积研究进展与关键问题 . 沉积学报, 2019, 37(2): 225-238. doi: 10.14027/j.issn.1000-0550.2018.152
[6]	徐伟, 李正宇, 刘艺萌, 刘军钊, 王启明. 渤中25-1油田沙三段重力流沉积模式及油气地质意义 . 沉积学报, 2018, 36(3): 557-569. doi: 10.14027/j.issn.1000-0550.2018.075
[7]	张景军, 李凯强, 王群会, 王志坤, 韩江波. 渤海湾盆地南堡凹陷古近系重力流沉积特征及模式 . 沉积学报, 2017, 35(6): 1241-1253. doi: 10.14027/j.cnki.cjxb.2017.06.015
[8]	孙福宁, 杨仁超, 李冬月. 异重流沉积研究进展 . 沉积学报, 2016, 34(3): 452-462. doi: 10.14027/j.cnki.cjxb.2016.03.003
[9]	黄薇, 吴海波, 李军辉, 刘赫. 海—塔盆地中部断陷带南屯组沉积体系配置及有利相带分析 . 沉积学报, 2016, 34(1): 120-128. doi: 10.14027/j.cnki.cjxb.2016.01.011
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辽中凹陷北洼古近系东二下亚段湖底扇沉积类型及时空演化机理分析

doi: 10.14027/j.issn.1000-0550.2019.007

中海石油 (中国) 有限公司天津分公司, 天津 300459

基金项目: 国家科技重大专项（2016ZX05024-003）

作者简介:
刘艺萌,男,1987年出生,硕士,油气储层地质,E-mail:liuym33@cnooc.com.cn

收稿日期: 2018-08-16
修回日期: 2019-01-10
刊出日期: 2019-12-10

中图分类号: P618.13

关键词:

湖底扇 /

摘要: 辽中凹陷北洼古近系东二下亚段发育14期湖底扇沉积。基于湖底扇类型划分，对不同类型湖底扇沉积控制因素、成因机制及不同类型湖底扇之间的时空演化规律进行了研究。结合深水重力流沉积学理论，依据湖底扇水道发育程度、重力流流体性质，将研究区湖底扇分为非水道化—砂质碎屑流型湖底扇、非水道化—浊流型湖底扇和水道化湖底扇3种类型。非水道化—砂质碎屑流型和非水道化—浊流型湖底扇无明显下切水道，其中非水道化—砂质碎屑流型湖底扇整体富砂，非水道化—浊流型湖底扇整体富泥。水道化湖底扇发育明显下切水道，水道中发育砂质碎屑流富砂，水道外发育浊流富泥。物源富砂性及坡折带规模共同决定湖底扇沉积类型，含砂率大于30%的富砂型物源易形成非水道化湖底扇，含砂率小于30%的富泥型物源易形成水道化湖底扇。在富砂型物源背景下，当坡折规模较大时，因搬运距离远，砂泥分异充分，沉积非水道化—砂质碎屑流型和非水道化—浊流型两种湖底扇；当坡折规模较小时，砂泥分异不充分，只发育非水道化—砂质碎屑流型湖底扇。富砂物源滑塌为非粘性体，搬运过程中易与水融合，对底部呈片状冲刷，不易形成单一水道；富泥物源滑塌为黏性体，搬运过程中对底部冲刷集中，强度更大，易形成水道。

English Abstract

Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag

Tianjin Branch of CNOOC China Ltd., Tianjin 300459

Funds: National Science and Technology Major Project, No. 2016ZX05024-003

Received Date: 2018-08-16
Rev Recd Date: 2019-01-10
Publish Date: 2019-12-10

Keywords:

Abstract: Fourteen sublacustrine fans are located in the northern sub-sag of the Liaozhong Sag in the lower Ed2 Formation. A systematic study of their sedimentary characteristics,genesis and space time evolution,combined with gravity flow sedimentation theory and the degree of development of water channels and the characteristics of the gravity flow fluid indicated three types of sedimentation:non-channelized sandy-debris flow(SDF) sublacustrine fans, non-channelized turbidite-current(TC) sublacustrine fans,and channelized fans. The SDF and TC fans have no evident channel;the SDF is rich in sand,and the TC fan is rich in mud. The sand in the channelized fan is mainly confined to the channel,and the mud is outside the channel. The main factors that determined the formation of the different fan types depends on(a) whether the source is rich in sand,and(b) the scale of the slope break belt. The nonchannelized fans were formed when the sand content exceeded 30% of the sand content of the channelized fans. Both SDF and TC fans were found when the scale of the slope break was relatively large and the transport distance was greatest. Only SDF fans were formed when the slope break was small. Sand-rich source material(non-viscous and easily mixed with water in slump tests) did not readily form channels. Mud-rich source material(viscous and not readily mixed with water in slump tests) formed obvious channels.

引用本文:

Citation:

LIU YiMeng, ZHANG Li, HUANG XiaoBo, ZHENG JingGui, XU Wei. Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag[J]. Acta Sedimentologica Sinica, 2019, 37(6): 1280-1295. doi: 10.14027/j.issn.1000-0550.2019.007

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辽中凹陷北洼古近系东二下亚段湖底扇沉积类型及时空演化机理分析

doi: 10.14027/j.issn.1000-0550.2019.007

作者简介:
刘艺萌,男,1987年出生,硕士,油气储层地质,E-mail:liuym33@cnooc.com.cn

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Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag

计量

目录

辽中凹陷北洼古近系东二下亚段湖底扇沉积类型及时空演化机理分析

doi: 10.14027/j.issn.1000-0550.2019.007

中海石油 (中国) 有限公司天津分公司, 天津 300459

作者简介:
刘艺萌,男,1987年出生,硕士,油气储层地质,E-mail:liuym33@cnooc.com.cn

English Abstract

Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag

Tianjin Branch of CNOOC China Ltd., Tianjin 300459

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辽中凹陷北洼古近系东二下亚段湖底扇沉积类型及时空演化机理分析

doi: 10.14027/j.issn.1000-0550.2019.007

作者简介: 刘艺萌,男,1987年出生,硕士,油气储层地质,E-mail:liuym33@cnooc.com.cn

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Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag

计量

出版历程

目录

辽中凹陷北洼古近系东二下亚段湖底扇沉积类型及时空演化机理分析

doi: 10.14027/j.issn.1000-0550.2019.007

中海石油 (中国) 有限公司天津分公司, 天津 300459

作者简介: 刘艺萌,男,1987年出生,硕士,油气储层地质,E-mail:liuym33@cnooc.com.cn

English Abstract

Sedimentary Types and Genetic Mechanism of the Space-time Evolution of Sublacustrine Fans of the Paleogene in Lower Ed2 Formation,Northern Sub-sag of the Liaozhong Sag

Tianjin Branch of CNOOC China Ltd., Tianjin 300459

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期刊在线

联系我们

作者简介:
刘艺萌,男,1987年出生,硕士,油气储层地质,E-mail:liuym33@cnooc.com.cn

作者简介:
刘艺萌,男,1987年出生,硕士,油气储层地质,E-mail:liuym33@cnooc.com.cn