准噶尔盆地乌尔禾油田高自然伽马砂砾岩特征及其沉积微相研究&mdash;&mdash;以乌36井区百口泉组为例

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准噶尔盆地乌尔禾油田高自然伽马砂砾岩特征及其沉积微相研究——以乌36井区百口泉组为例

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中图分类号: TE121.3⁺2

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High GR Glutinite Feature and Micro-Sedimentary Facies in Wuerhe Oil-field, Junggar Basin——Taking the Baikouquan Group in Wu 36 Area as an example

摘要

摘要: 基于岩芯编录、测录井资料和薄片分析数据，对准噶尔盆地乌36井区三叠系百口泉组开展了沉积学研究。研究表明，乌36井区百口泉组发育冲积扇沉积体系，扇体内部砂砾岩具有自然伽马异常高的特点，而泥岩具有自然伽马异常低的特点，其原因主要是由于原岩碎屑中富含凝灰岩等高放射性物质，同时沉积物的粒度变化、搬运距离和相带展布控制了砂砾岩自然伽马异常的空间变化，并依据伽马异常的空间变化特点建立了相应的泥质含量计算公式，提出了高自然伽马砂砾岩沉积微相划分的一种新方法。区内主要发育冲积扇扇中辫流线微相、扇中辫流砂岛微相、扇中漫洪带微相和扇缘漫流带微相。精细刻画了各期扇体沉积微相的展布与垂向演化特征，百口泉组三段发育四期扇体，垂向上表现为一个快速水退背景和缓慢水进背景下的沉积演化序列；百口泉组二段发育三期扇体，垂向上表现为退积型演化序列；百口泉组一段则表现为冲积扇扇缘沉积。通过与实际生产对比，本次研究较好地解释了区内生产井的生产状况，验证了利用高自然伽马砂砾岩自然伽马特征研究沉积微相的可行性与实用性。
- 自然伽马异常砂砾岩 /
- 沉积微相 /
- 乌尔禾油田 /
- 准噶尔盆地
Abstract: Based on rock core documentation, well logging analysis and the rock fragment data, we carried out the sedimentology research on the Triassic Baikouquan Group in Wu 36 area of Junggar Basin. This study revealed that the Baikouquan Group developped in alluvial fan system. The glutenite is characterized by unusually high natural gamma and the mudstone is characterized by low inside the alluvial fan. This feature is mainly controlled by the high radioactive substance in the original rock, for example the tuff. The spatial variation in high natural gamma anomaly was influenced by sediment grain size, transport distance and facies distribution. According to the spatial variation characteristics of Gamma anomaly, we established a clay content formula and put forward a new method on the division of sedimentary facies. Our study area mainly develops mid-fan braided stream line microfacies, mid-fan braided stream sand island microfacies, mid-fan sheetflood microfacies and cross flow microfacies in marginal subfacies. We also carefully portrayed the distribution and vertical evolution of these sedimentary microfacies of different stages. The results show that the 3^rdmember in Baikouquan Group developed four fan bodies. There is a sedimentary evolutionary sequence in the vertical profile controlled by fast dereliction and slow retrograding. The 2^nd member in Baikouquan Group developed three fan bodies and presented a retrograding evolutionary sequence in the vertical. The 1^st member in Baikouquan Group performed the alluvial fan marginal sedimentary. Compared with the actual production, this study better explained the production status of the regional producing well and verified the feasibility and practicality of using natural gamma characteristics of high natural gamma glutinite to make research on sedimentary microfacies.
- natural gamma anomaly glutinite /
- micro-sedimentary facies /
- Wuerhe Oilfield /
- Junggar Basin

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[3]	丁超, 庞燕青, 孟亚玲, 黄钰珑, 李闻东, 张顺存, 郭晖, 李佳思, 张明峰. 准噶尔盆地中拐地区上乌尔禾组富火山碎屑砂砾岩储层的古环境及储层机理研究 . 沉积学报, 2020, 38(4): 851-867. doi: 10.14027/j.issn.1000-0550.2020.054
[4]	厚刚福, 孙靖, 王力宝, 李亚哲, 李啸, 沈金龙, 窦洋, 陈扬, 韩守华. 不同古地貌单元水下分流河道沉积特征及其意义——以准噶尔盆地夏盐地区三工河组二段为例 . 沉积学报, 2019, 37(4): 825-833. doi: 10.14027/j.issn.1000-0550.2018.175
[5]	张丽霞, 柳益群, 向辉, 李红, 周鼎武, 焦鑫, 李哲萱, 南云. 凝灰岩型含油层系特征与成因分析——以准噶尔盆地火烧山油田二叠系平地泉组为例 . 沉积学报, 2018, 36(4): 768-776. doi: 10.14027/j.issn.1000-0550.2018.056
[6]	黄远光, 张昌民, 丁雲, 瞿建华, 朱锐, 潘进, 唐勇, 张磊, 陶金雨. 准噶尔盆地玛湖凹陷百口泉组典型微相砾石定向性定量研究 . 沉积学报, 2018, 36(3): 596-607. doi: 10.14027/j.issn.1000-0550.2018.046
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[8]	单祥, 陈能贵, 郭华军, 唐勇, 孟祥超, 邹志文, 徐洋. 基于岩石物理相的砂砾岩储层分类评价——以准噶尔盆地玛131井区块百二段为例 . 沉积学报, 2016, 34(1): 149-157. doi: 10.14027/j.cnki.cjxb.2016.01.014
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文章访问数: 1224
HTML全文浏览量: 1
PDF下载量: 1003
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准噶尔盆地乌尔禾油田高自然伽马砂砾岩特征及其沉积微相研究——以乌36井区百口泉组为例

刊出日期: 2014-08-10

中图分类号: TE121.3⁺2

关键词:

摘要: 基于岩芯编录、测录井资料和薄片分析数据，对准噶尔盆地乌36井区三叠系百口泉组开展了沉积学研究。研究表明，乌36井区百口泉组发育冲积扇沉积体系，扇体内部砂砾岩具有自然伽马异常高的特点，而泥岩具有自然伽马异常低的特点，其原因主要是由于原岩碎屑中富含凝灰岩等高放射性物质，同时沉积物的粒度变化、搬运距离和相带展布控制了砂砾岩自然伽马异常的空间变化，并依据伽马异常的空间变化特点建立了相应的泥质含量计算公式，提出了高自然伽马砂砾岩沉积微相划分的一种新方法。区内主要发育冲积扇扇中辫流线微相、扇中辫流砂岛微相、扇中漫洪带微相和扇缘漫流带微相。精细刻画了各期扇体沉积微相的展布与垂向演化特征，百口泉组三段发育四期扇体，垂向上表现为一个快速水退背景和缓慢水进背景下的沉积演化序列；百口泉组二段发育三期扇体，垂向上表现为退积型演化序列；百口泉组一段则表现为冲积扇扇缘沉积。通过与实际生产对比，本次研究较好地解释了区内生产井的生产状况，验证了利用高自然伽马砂砾岩自然伽马特征研究沉积微相的可行性与实用性。

High GR Glutinite Feature and Micro-Sedimentary Facies in Wuerhe Oil-field, Junggar Basin——Taking the Baikouquan Group in Wu 36 Area as an example

Publish Date: 2014-08-10

Keywords:

Abstract: Based on rock core documentation, well logging analysis and the rock fragment data, we carried out the sedimentology research on the Triassic Baikouquan Group in Wu 36 area of Junggar Basin. This study revealed that the Baikouquan Group developped in alluvial fan system. The glutenite is characterized by unusually high natural gamma and the mudstone is characterized by low inside the alluvial fan. This feature is mainly controlled by the high radioactive substance in the original rock, for example the tuff. The spatial variation in high natural gamma anomaly was influenced by sediment grain size, transport distance and facies distribution. According to the spatial variation characteristics of Gamma anomaly, we established a clay content formula and put forward a new method on the division of sedimentary facies. Our study area mainly develops mid-fan braided stream line microfacies, mid-fan braided stream sand island microfacies, mid-fan sheetflood microfacies and cross flow microfacies in marginal subfacies. We also carefully portrayed the distribution and vertical evolution of these sedimentary microfacies of different stages. The results show that the 3^rdmember in Baikouquan Group developed four fan bodies. There is a sedimentary evolutionary sequence in the vertical profile controlled by fast dereliction and slow retrograding. The 2^nd member in Baikouquan Group developed three fan bodies and presented a retrograding evolutionary sequence in the vertical. The 1^st member in Baikouquan Group performed the alluvial fan marginal sedimentary. Compared with the actual production, this study better explained the production status of the regional producing well and verified the feasibility and practicality of using natural gamma characteristics of high natural gamma glutinite to make research on sedimentary microfacies.

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准噶尔盆地乌尔禾油田高自然伽马砂砾岩特征及其沉积微相研究——以乌36井区百口泉组为例

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High GR Glutinite Feature and Micro-Sedimentary Facies in Wuerhe Oil-field, Junggar Basin——Taking the Baikouquan Group in Wu 36 Area as an example

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准噶尔盆地乌尔禾油田高自然伽马砂砾岩特征及其沉积微相研究——以乌36井区百口泉组为例

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High GR Glutinite Feature and Micro-Sedimentary Facies in Wuerhe Oil-field, Junggar Basin——Taking the Baikouquan Group in Wu 36 Area as an example

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准噶尔盆地乌尔禾油田高自然伽马砂砾岩特征及其沉积微相研究——以乌36井区百口泉组为例

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High GR Glutinite Feature and Micro-Sedimentary Facies in Wuerhe Oil-field, Junggar Basin——Taking the Baikouquan Group in Wu 36 Area as an example

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出版历程

目录

准噶尔盆地乌尔禾油田高自然伽马砂砾岩特征及其沉积微相研究——以乌36井区百口泉组为例

English Abstract

High GR Glutinite Feature and Micro-Sedimentary Facies in Wuerhe Oil-field, Junggar Basin——Taking the Baikouquan Group in Wu 36 Area as an example

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友情链接

期刊在线

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