白云凹陷中深层古近系砂岩储层特征及溶蚀作用对优质储层的控制作用

文静; 赵靖舟; 李军; 耳闯

doi:10.3969/j.issn.1006-6535.2022.06.006

特种油气藏 >

2022 , Vol. 29 >Issue 6: 47 - 55

DOI: https://doi.org/10.3969/j.issn.1006-6535.2022.06.006

地质勘探

白云凹陷中深层古近系砂岩储层特征及溶蚀作用对优质储层的控制作用

文静 ,
赵靖舟 ,
李军 ,
耳闯

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1.西安石油大学,陕西西安 710065;
2.陕西省油气成藏地质学重点实验室,陕西西安 710065

文静(1998—),女,2020年毕业于西安石油大学地质工程专业,现为该校矿产普查与勘探专业在读硕士研究生,研究方向为储层地质学。

收稿日期: 2022-07-14

修回日期: 2022-10-12

网络出版日期: 2023-01-10

基金资助

中国博士后科学基金“鄂尔多斯盆地三叠系延长组7段泥页岩氧化还原参数阈值校正及底水氧化还原条件重新评价”(2022MD713801)

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Characteristics of Mid-Deep Paleogene Sandstone Reservoirs in Baiyun Sag and Controlling Effect of Dissolution on High-Quality Reservoirs

Wen Jing ,
Zhao Jingzhou ,
Li Jun ,
Er Chuang

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1. Xi'an Petroleum University, Xi'an, Shaanxi 710065, China;
2. Shaanxi Key Laboratory of Petroleum Accumulation Geology, Xi'an, Shaanxi 710065, China

Received date: 2022-07-14

Revised date: 2022-10-12

Online published: 2023-01-10

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摘要

为明确南海珠江口盆地白云凹陷中深层储层特征及溶蚀作用对优质储层的控制作用,基于岩心观察、铸体薄片、场发射扫描电镜等观察结果,结合X-射线衍射、压汞分析等资料和技术手段,对白云凹陷古近系砂岩储层岩石学特征、储集空间特征和物性特征进行描述,并对影响储层物性、储集性的相关成岩作用进行深入研究。结果表明:白云东洼的储层砂岩类型主要为长石质石英砂岩和岩屑质石英砂岩;白云北坡岩性较东洼复杂,主要以长石质石英砂岩为主,含少量长石岩屑质石英砂岩;白云东洼中深层储层孔隙类型由粒间溶孔、粒内溶孔组成,白云北坡储层孔隙发育程度较白云东洼略高,粒间溶孔、粒内溶孔以及铸模孔含量较高;白云凹陷储层总体呈现低孔低渗特征,有机酸与长石和火成岩岩屑相互作用形成的溶蚀孔隙是控制研究区古近系砂岩储层物性的最主要因素。研究结果对珠江口盆地白云凹陷砂岩储层的勘探开发具有一定借鉴指导作用。

关键词： 古近系; 砂岩; 储层特征; 溶蚀作用; 中深层; 白云凹陷; 珠江口盆地

本文引用格式

文静 , 赵靖舟 , 李军 , 耳闯 . 白云凹陷中深层古近系砂岩储层特征及溶蚀作用对优质储层的控制作用[J]. 特种油气藏, 2022 , 29(6) : 47 -55 . DOI: 10.3969/j.issn.1006-6535.2022.06.006

Abstract

To definite the characteristics of mid-deep paleogene sandstone reservoirs and the controlling effect of dissolution on high-quality reservoirs in Baiyun Sag, Pearl River Mouth Basin, South China Sea, according to the core observation, casting slice, field emission scanning electron microscopy and observation results, the lithological characteristics, reservoir space characteristics and physical characteristics of Paleogene sandstone reservoirs in Baiyun Sag were described in combination with X-ray diffraction, mercury penetration analysis and other data and technical means. In addition, a deep study was conducted on the diagenesis related to reservoir physical properties and reservoir quality. As found in the results, the reservoir sandstones in the East Sub-sag of Baiyun Sag are mainly composed of feldspathic quartz sandstone and lithic quartz sandstone. The lithology of the North Slope of Baiyun Sag is more complex than that of the East Sub-sag, primarily composed of feldspathic quartz sandstone, with a small amount of feldspathic lithic quartz sandstone. The pores of the mid-deep reservoirs in the East Sub-sag include intergranular and intragranular dissolved pores. The pore development degree of reservoirs in the North Slope is slightly higher than that of the East Sub-sag, with a higher content of intergranular dissolved pores, intragranular dissolved pores and mold pores. The reservoirs in Baiyun Sag are generally characterized by low porosity and permeability. The dissolved pore formed by the interaction of organic acids with feldspar and igneous rock debris is the most important factor that controls the physical properties of the Paleozoic sandstone reservoir in the study area. The study results can become certain reference and guidance for the exploration and development of sandstone reservoirs in Baiyun Sag, Pearl River Mouth Basin.

Key words： Paleogene; sandstone; reservoir characteristics; dissolution; mid-deep layer; Baiyun Sag; Pearl River Mouth Basin

参考文献

[1] 张振波,轩义华,刘宾,等.南海东部白云深水区复杂地层精细岩石物理分析[J].断块油气田,2014,21(1):43-48.
ZHANG Zhenbo,XUAN Yihua,LIU Bin,et al.Fine petrophysical analysis on complex formation in Baiyun deep water area of eastern South China Sea[J].Fault-Block Oil & Gas Field,2014,21(1):43-48.
[2] 田立新,张忠涛,庞雄,等.白云凹陷中深层超压发育特征及油气勘探新启示[J].中国海上油气,2020,32(6):1-11.
TIAN Lixin,ZHANG Zhongtao,PANG Xiong,et al.Characteristics of overpressure development in the mid-deep strata of Baiyun Sag and its new enlightenment in exploration activity[J].China Offshore Oil and Gas,2020,32(6):1-11.
[3] 廖计华,吴克强,耳闯.珠江口盆地白云凹陷深层储层特征与有效储层控制因素[J].地球科学,2022,47(7):2454-2467.
LIAO Jihua,WU Keqiang,ER Chuang.Deep reservoir characteristics and effective reservoir control factors in Baiyun Sag of Pearl River Mouth Basin[J].Earth Sciences,2022,47(7):2454-2467.
[4] 张文昭,张厚和,李春荣,等.珠江口盆地油气勘探历程与启示[J].新疆石油地质,2021,42(3):346-352,363.
ZHANG Wenzhao,ZHANG Houhe,LI Chunrong,et al.Petroleum exploration history and enlightenment in Pearl River Mouth Basin[J].Xinjiang Petroleum Geology,2021,42(3):346-352,363.
[5] 潘光超,周家雄,韩光明,等.中深层“甜点”储层地震预测方法探讨——以珠江口盆地西部文昌A凹陷为例[J].岩性油气藏,2016,28(1):94-100.
PAN Guangchao,ZHOU Jiaxiong,HAN Guangming,et al.Seismic prediction method of“sweet”reservoir in middle-deep zone:a case study from Wenchang A Sag,western Pearl River Mouth Basin[J].Lithologic Reservoirs,2016,28(1):94-100.
[6] 陈国俊,吕成福,王琪,等.珠江口盆地深水区白云凹陷储层孔隙特征及影响因素[J].石油学报,2010,31(4):566-572.
CHEN Guojun,LYU Chengfu,WANG Qi,et al.Characteristics of pore evolution and its controlling factors of Baiyun Sag in deepwater area of Pearl River Mouth Basin[J].Acta Petrolei Sinica,2010,31(4):566-572.
[7] 杜贵超,苏龙,陈国俊,等.番禺低隆起珠海组砂岩碳酸盐胶结特征及其对储层物性的影响[J].岩性油气藏,2019,31(3):10-19.
DU Guichao,SU Long,CHEN Guojun,et al.Carbonate cements and its effect on reservoir property of shallow marine sandstones of Zhuhai Formation in Panyu low-uplift,Pearl River Mouth Basin[J].Lithologic Reservoirs,2019,31(3):10-19.
[8] 吕成福,陈国俊,张功成,等.珠江口盆地白云凹陷珠海组碎屑岩储层特征及成因机制[J].中南大学学报(自然科学版),2011,42(9):2763-2773.
LYU Chengfu,CHEN Guojun,ZHANG Gongcheng,et al.Reservoir characteristics of detrital sandstones in Zhuhai Formation of Baiyun Sag,Pearl River Mouth Basin[J].Journal of Central South University(Science and Technology),2011,42(9):2763-2773.
[9] 马明,陈国俊,李超,等.珠江口盆地白云凹陷恩平组储层成岩作用与孔隙演化定量表征[J].天然气地球科学,2017,28(10):1515-1526.
MA Ming,CHEN Guojun,LI Chao,et al.Quantitative analysis of porosity evolution and formation mechanism of good reservoir in Enping Formation,Baiyun Sag,Pearl River Mouth Basin[J].Natural Gas Geoscience,2017,28(10):1515-1526.
[10] 罗静兰,何敏,庞雄,等.珠江口盆地南部热演化事件与高地温梯度的成岩响应及其对油气勘探的启示[J].石油学报,2019,40(增刊1):90-104.
LUO Jinglan,HE Min,PANG Xiong,et al.Diagenetic response on thermal evolution events and high geothermal gradients in the southern Pear River Mouth Basin and its enlightenment to hydrocarbon exploration[J].Acta Petrolei Sinica,2019,40(S1):90-104.
[11] 谢晓军,熊连桥,白海强,等.白云凹陷中深层有利储层特征及其分布预测[J].地球科学,2022,47(5):1635-1651.
XIE Xiaojun,XIONG Lianqiao,BAI Haiqiang,et al.Characteristics of favorable reservoir and its distribution prediction in middle-deep layers in Baiyun Sag,Pearl River Mouth Basin[J].Journal of Earth Science,2022,47(5):1635-1651.
[12] 张向涛,李军,向绪洪,等.珠江口盆地深水区白云凹陷超压成因机制及其勘探意义[J].石油学报,2022,43(1):41-57.
ZHANG Xiangtao,LI Jun,XIANG Xuhong,et al.Genetic mechanism of overpressure and its significance on petroleum exploration in Baiyun Sag in the deep water zone of Pearl River Mouth Basin[J].Acta Petrolei Sinica,2022,43(1):41-57.
[13] 柳保军,庞雄,颜承志,等.珠江口盆地白云深水区渐新世—中新世陆架坡折带演化及油气勘探意义[J].石油学报,2011,32(2):234-242.
LIU Baojun,PANG Xiong,YAN Chengzhi,et al.Evolution of the Oligocene-Miocene shelf slope-break zone in the Baiyun deep-water area of the Pearl River Mouth Basin and its significance in oil-gas exploration[J].Acta Petrolei Sinica,2011,32(2):234-242.
[14] 吴克强,谢晓军,廖计华,等.中国近海古近纪碎屑岩储层特征与溶蚀作用规律[J/OL].地球科学:1-15[2022-09-09].
WU Keqiang,XIE Xiaojun,LIAO Jihua,et al.The rules of reservoir characteristics and dissolution of Paleogene clastic rocks in offshore China[J].Journal of Earth Science:1-15[2022-09-09].
[15] 米立军,何敏,翟普强,等.珠江口盆地深水区白云凹陷高热流背景油气类型与成藏时期综合分析[J].中国海上油气,2019,31(1):1-12.
MI Lijun,HE Min,ZHAI Puqiang,et al.Integrated study on hydrocarbon types and accumulation periods of Baiyun Sag,deep water area of Pearl River Mouth Basin under the high heat flow background[J].China Offshore Oil and Gas,2019,31(1):1-12.
[16] 陈亮,庞雄,刘军,等.珠江口盆地白云凹陷深水重力流优质砂岩储集层特征及识别方法[J].石油勘探与开发,2015,42(4):463-471.
CHEN Liang,PANG Xiong,LIU Jun,et al.Characteristics and identification of high quality deep-water gravity flow sandstone reservoirs in Baiyun Sag,Pearl River Mouth Basin,South China Sea[J].Petroleum Exploration and Development,2015,42(4):463-471.
[17] 丁琳,李晓艳,周凤娟,等.珠江口盆地珠一坳陷古近系优质储层差异发育特征及主控因素——以陆丰地区和惠州地区文昌组为例[J].岩石矿物学杂志,2022,41(1):75-86.
DING Lin,LI Xiaoyan,ZHOU Fengjuan,et al.Differential development characteristics and main controlling factors of the Paleogene high-quality reservoirs from the Zhuyi Depression in the Pearl River Mouth Basin:a case on Wenchang Formation at Lufeng Area and Huizhou Area[J].Acta Petrologica et Mineralogica,2022,41(1):75-86.

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