北部湾盆地涠西南凹陷南坡古近系流二段滩坝砂体分布规律

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北部湾盆地涠西南凹陷南坡古近系流二段滩坝砂体分布规律

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中图分类号: P512.2 TE121.3

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Distribution of Beachbar Sandbodies of the Second Member of Liushagang Formation of Paleogene of South Slope in Weixinan Depression, Beibuwan Basin

摘要

摘要: 涠西南凹陷南坡H1井区流二段发育了一定规模的滨浅湖滩坝砂体。在滩坝砂体沉积特征分析的基础上，利用地震沉积学分析方法和技术，对滩坝砂体分布规律及演化特征进行了研究。在沉积模型控制和钻井资料标定的基础上，地层切片属性分析能够较好的反映滩坝砂体的分布范围，并且能够较好的对坝砂和滩砂沉积进行区分和识别。地层切片分析表明MC1旋回内滩坝砂体早中期表现为进积特征，滩砂和坝砂沉积范围均明显扩大和迁移，中晚期表现为加积特征，坝砂厚度和范围明显增加；MC2旋回内滩坝砂体沉积过程中分布范围变化不大，滩砂和坝砂均呈明显的垂向加积特征。两个旋回内坝砂沉积主要呈相互平行的条带状分布在研究区东南部及中部。为了增加钻井成功率和探明滩坝砂体主体发育特征，建议目前的勘探重点应放在研究区东南部及中部坝砂沉积发育区。
- 滩坝 /
- /
- 地层切片 /
- /
- 地震沉积学 /
- /
- 分布规律 /
- /
- 涠西南凹陷
Abstract: During the period of the second member of Liushagang Formation, there developed a certain scale of beachbar sandbodies. Based on the analysis of sedimentary characteristics of beachbar sandbodies, the distribution and evolution characteristics of beachbar sandbodies were studied by using the method and technology of seismic sedimentology. According to the controlling of sedimentary model and the demarcation of drilling data, the analysis of seismic property of stratal slice could image the distribution area of beachbar sandbodies well and could also recognize and distinguish the beach sands and bar sands effectively. The analysis of statal slices indicates that the sandbodies were progradation at the early and middle stage of MC1 cycle and the sedimentary areas of beach sands and bar sands were extended and migratory obviously, while the sandbodies were vertical aggradation at the middle and late stage of MC1 cycle and the thickness and area of bar sands increased obviously. The distribution area of sandbodies was comparatively stable and the beach sands and bar sands were vertical aggradation during the process of beachbar development at the period of MC2 cycle. The bar sands of the two cycles were, parallel to each other as strips, mainly distribution at the southeast and centre parts of studying area. In the interest of increasing the successful rate of wells and prove up the development characteristics of main bodies of beachbar sandbodies, the exploration should be emphasis on the bar sands development area in southeast and centre parts of studying area.
- beach bar /
- stratal slice /
- seismic sedimentology /
- distribution characteristic /
- Weixinan Depression /

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[1]	屈童, 高岗, 徐新德, 黄志龙, 甘军, 梁刚, 游君君. 三角洲—浅海沉积体系陆源有机质沉积模拟实验研究 . 沉积学报, 2023, 41(2): 584-600. doi: 10.14027/j.issn.1000-0550.2021.085
[2]	杨仁超, 董亮, 张吉, 王一, 樊爱萍. 苏里格气田西区地层水成因、分布规律与控制因素 . 沉积学报, 2022, 40(1): 267-280. doi: 10.14027/j.issn.1000-0550.2020.079
[3]	尹力, 冯文杰, 尹艳树, 雷诚, 徐庆岩, 何一鸣. 波浪作用下砂质滩坝的沉积过程与沉积模式 . 沉积学报, 2022, 40(5): 1393-1405. doi: 10.14027/j.issn.1000-0550.2021.147
[4]	袁丙龙, 张辉, 叶青, 张连枝, 陈之贺, 晁彩霞, 董德喜, 郇金来. 基于三角洲复合砂体构型的流动单元划分及剩余油分布模式 . 沉积学报, 2021, 39(5): 1253-1263. doi: 10.14027/j.issn.1000-0550.2020.105
[5]	屈童, 高岗, 徐新德, 刘凤妍. 三角洲—浅海沉积体系陆源有机质分布控制因素 . 沉积学报, 2020, 38(3): 648-660. doi: 10.14027/j.issn.1000-0550.2019.057
[6]	刘英辉, 黄导武, 段冬平, 陈波, 丁芳, 陈晨, 黎祺. 煤层等时格架下中深层储层地震沉积学预测 . 沉积学报, 2018, 36(5): 957-968. doi: 10.14027/j.issn.1000-0550.2018.072
[7]	李维, 朱筱敏, 陈刚, 马英俊. 基于等时界面识别的浅水三角洲-河流沉积体系研究——以高邮凹陷黄珏地区古近系垛一段为例 . 沉积学报, 2018, 36(1): 110-119. doi: 10.3969/j.issn.1000-0550.2018.013
[8]	曾小明, 张辉, 彭松, 周展, 王磊, 谢京. 涠洲12-A油田流二段Ⅱ油组沉积特征及演化 . 沉积学报, 2015, 33(1): 153-159. doi: 10.14027/j.cnki.cjxb.2015.01.016
[9]	张晶, 李双文, 袁淑琴, 龙礼文, 姚军, 王菁. 地震沉积学在识别重力流沉积体系中的应用 . 沉积学报, 2015, 33(3): 578-586. doi: 10.14027/j.cnki.cjxb.2015.03.016
[10]	. 基于地震沉积学方法的沉积相研究——以涠西南凹陷涠洲组三段为例 . 沉积学报, 2014, 32(3): 568-575.
[11]	. 北部湾盆地涠西南凹陷湖底扇的沉积特征 . 沉积学报, 2014, 32(2): 218-227.
[12]	. 塔中地区良里塔格组台缘颗粒滩沉积特征及分布规律 . 沉积学报, 2014, 32(2): 354-364.
[13]	. 涠西南凹陷A井区古近系流沙港组一段砂体沉积特征及分布规律 . 沉积学报, 2013, 31(1): 56-66.
[14]	范泓澈. 鄂尔多斯盆地胡尖山地区长6段油水分布规律及主控因素分析 . 沉积学报, 2011, 29(1): 151-157.
[15]	张鑫. 惠民凹陷中央隆起带沙四上亚段滩坝与风暴岩组合沉积 . 沉积学报, 2009, 27(2): 246-253.
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[17]	董春梅, 张宪国, 林承焰. 地震沉积学的概念、方法和技术 . 沉积学报, 2006, (5): 698-704.
[18]	. 地震沉积学的概念、方法和技术 . 沉积学报, 2006, 24(05): 698-704.
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北部湾盆地涠西南凹陷南坡古近系流二段滩坝砂体分布规律

刊出日期: 2013-06-10

中图分类号: P512.2 TE121.3

关键词:

滩坝 /

摘要: 涠西南凹陷南坡H1井区流二段发育了一定规模的滨浅湖滩坝砂体。在滩坝砂体沉积特征分析的基础上，利用地震沉积学分析方法和技术，对滩坝砂体分布规律及演化特征进行了研究。在沉积模型控制和钻井资料标定的基础上，地层切片属性分析能够较好的反映滩坝砂体的分布范围，并且能够较好的对坝砂和滩砂沉积进行区分和识别。地层切片分析表明MC1旋回内滩坝砂体早中期表现为进积特征，滩砂和坝砂沉积范围均明显扩大和迁移，中晚期表现为加积特征，坝砂厚度和范围明显增加；MC2旋回内滩坝砂体沉积过程中分布范围变化不大，滩砂和坝砂均呈明显的垂向加积特征。两个旋回内坝砂沉积主要呈相互平行的条带状分布在研究区东南部及中部。为了增加钻井成功率和探明滩坝砂体主体发育特征，建议目前的勘探重点应放在研究区东南部及中部坝砂沉积发育区。

Distribution of Beachbar Sandbodies of the Second Member of Liushagang Formation of Paleogene of South Slope in Weixinan Depression, Beibuwan Basin

Publish Date: 2013-06-10

Keywords:

Abstract: During the period of the second member of Liushagang Formation, there developed a certain scale of beachbar sandbodies. Based on the analysis of sedimentary characteristics of beachbar sandbodies, the distribution and evolution characteristics of beachbar sandbodies were studied by using the method and technology of seismic sedimentology. According to the controlling of sedimentary model and the demarcation of drilling data, the analysis of seismic property of stratal slice could image the distribution area of beachbar sandbodies well and could also recognize and distinguish the beach sands and bar sands effectively. The analysis of statal slices indicates that the sandbodies were progradation at the early and middle stage of MC1 cycle and the sedimentary areas of beach sands and bar sands were extended and migratory obviously, while the sandbodies were vertical aggradation at the middle and late stage of MC1 cycle and the thickness and area of bar sands increased obviously. The distribution area of sandbodies was comparatively stable and the beach sands and bar sands were vertical aggradation during the process of beachbar development at the period of MC2 cycle. The bar sands of the two cycles were, parallel to each other as strips, mainly distribution at the southeast and centre parts of studying area. In the interest of increasing the successful rate of wells and prove up the development characteristics of main bodies of beachbar sandbodies, the exploration should be emphasis on the bar sands development area in southeast and centre parts of studying area.

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北部湾盆地涠西南凹陷南坡古近系流二段滩坝砂体分布规律

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Distribution of Beachbar Sandbodies of the Second Member of Liushagang Formation of Paleogene of South Slope in Weixinan Depression, Beibuwan Basin

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北部湾盆地涠西南凹陷南坡古近系流二段滩坝砂体分布规律

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Distribution of Beachbar Sandbodies of the Second Member of Liushagang Formation of Paleogene of South Slope in Weixinan Depression, Beibuwan Basin

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北部湾盆地涠西南凹陷南坡古近系流二段滩坝砂体分布规律

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Distribution of Beachbar Sandbodies of the Second Member of Liushagang Formation of Paleogene of South Slope in Weixinan Depression, Beibuwan Basin

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北部湾盆地涠西南凹陷南坡古近系流二段滩坝砂体分布规律

English Abstract

Distribution of Beachbar Sandbodies of the Second Member of Liushagang Formation of Paleogene of South Slope in Weixinan Depression, Beibuwan Basin

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