三塘湖盆地沉凝灰岩致密储集层特征及其形成条件

焦立新, 刘俊田, 张宏, 冯亚琴, 武超, 张琪, 郭克成

doi:10.11764/j.issn.1672-1926.2014.11.1697

天然气地球科学 >

2014 , Vol. 25 >Issue 11: 1697 - 1705

DOI: https://doi.org/10.11764/j.issn.1672-1926.2014.11.1697

天然气地质学

三塘湖盆地沉凝灰岩致密储集层特征及其形成条件

展开

中国石油吐哈油田分公司勘探开发研究院，新疆哈密 839009

焦立新(1969-)，男，甘肃民勤人，高级工程师，主要从事石油地质综合研究.E-mail：jiaolx@petrochina.com.cn.

收稿日期: 2014-02-07

修回日期: 2014-04-25

网络出版日期: 2019-09-20

基金资助

国家油气科技重大专项(编号：2011ZX05001-002-004)|中国石油吐哈油田股份公司“新疆大庆”重大科技专项(编号：2012E-34-04)联合资助.

收起

Tight Reservoir Characteristics and Formation Conditions of Tuff in Santanghu Basin

Expand

Research Institute of Exploration and Development,Tuha Oil Field Company,PetroChina,Hami 839009,China

Received date: 2014-02-07

Revised date: 2014-04-25

Online published: 2019-09-20

Fold

摘要

三塘湖盆地条湖组二段油藏储集层岩性以沉凝灰岩为主，除凝灰岩外，夹有内碎屑、生物屑及有机质泥纹，具有一定的沉积特征。基于岩石薄片鉴定、全岩矿物及场发射扫描电镜分析，结合压汞毛管压力曲线资料，开展储集层的岩性、物性、储集空间及孔隙结构等方面研究。研究表明，储集层岩性以含生物屑英安质晶屑—玻屑沉凝灰岩为主，脱玻化孔、晶屑溶蚀微孔和粒间孔是其主要的储集空间，岩心分析孔隙度平均为16.1%，渗透率平均为0.24×10^-3μm²，含油饱和度平均为69.5%，属于一套中高孔、特低渗、高含油饱和度致密储集层，储集层排驱压力为3.92MPa，孔喉半径为0.08μm，具有高排驱压力，喉道细小且分布均匀的特点，分析认为，条湖组二段沉凝灰岩成因环境为滨浅湖，缺少陆源碎屑物质供应的相对稳定的湖相环境是斜坡区沉凝灰岩致密储集层形成的关键，火山喷发后火山灰尘的缓慢空降沉积区域控制着致密储集层的平面展布。

关键词： 致密储集层; 形成条件; 沉凝灰岩; 条湖组; 三塘湖盆地

本文引用格式

焦立新, 刘俊田, 张宏, 冯亚琴, 武超, 张琪, 郭克成 . 三塘湖盆地沉凝灰岩致密储集层特征及其形成条件[J]. 天然气地球科学, 2014 , 25(11) : 1697 -1705 . DOI: 10.11764/j.issn.1672-1926.2014.11.1697

Abstract

The lithology of reservoir in P2t2 is dominated by tuff in Santanghu Basin,with some amount of debris,bioclastic and organic mud lines.It has the characteristic of sedimentation.Based on the analysis of rock slice,whole rock mineral and field-emission scanning electron microscope,combined with mercury injection capillary pressure curve data,a series of studies have been carried out on reservoir lithology,physical property,reservoir space and pore structure.Results show that the reservoir mainly contains bioclastic dacitic crystal crumbs-vitric tuff.Devitrification hole,microporous crystalline crumbs and intergranular corrosion holes are the main reservoir space.The porosity has an average of 16.1%,the permeability has an average of 0.24×10^-3μm²，and the oil saturation is averaged at 69.5%,belonging to a set of tight reservoir with medium-high porosity,ultra-low permeability and high oil saturation.The displacement pressure of reservoir is 3.92MPa and pore throat radius is 0.08μm.It is characterized by high reservoir displacement pressure,fine and homogeneously distributed throat.It is believed that tuffite of P₂t₂ was developed in shore-shallow lacustrine environment.Lack of lacustrine environment which has relatively stable supply of terrigenous materials is key to the tight reservoir of tuffite in the slope area. The slow airborne deposition of volcanic dust after the volcano controls the distribution of effective reservoir.

Key words： Tight reservoir; Formation conditions; Tuff; Tiaohu Group; Santanghu Basin

参考文献

［1］Zhao Wenzhi,Zou Caineng,Feng Zhiqiang,et al.Geological features and evaluation techniques of deep-seated volcanic gas reservoirs,Songliao Basin[J].Petroleum Exploration and Development,2008,35(2):129-142.［赵文智,邹才能,冯志强,等.松辽盆地深层火山岩气藏地质特征及评价技术[J].石油勘探与开发,2008,35(2):129-142.］
［2］Shu Ping,Ding Rixin,Qu Yanming,et al.Lithology and lithofacies mode of volcanic reservoir in Xushen Gasfield[J].Natural Gas Industry,2007,27(8):23-27.［舒萍,丁日新,曲延明,等.徐深气田火山岩储集层岩性岩相模式[J].天然气工业,2007,27(8):23-27.］
［3］Sun Yuanhui,Song Xinmin,Ran Qiquan,et al.Lithologic and lithofacies characteristics of volcanic rock and their control over reservoirs,Changling Gasfield[J].Petroleum Exploration and Development,2009,36(1):68-73.［孙圆辉,宋新民,冉启全,等.长岭气田火山岩岩性和岩相特征及其对储集层的控制[J].石油勘探与开发,2009,36(1):68-73.］
［4］Chen Qing,Zhang Lixin.Relationship between the Characteristic of Lithology-lithofacies and distribution of fractures in Carboniferous reservoirs,northwest margin of Junggar Basin[J].Geoscience,2009,23(2):305-311.［陈庆,张立新.准噶尔盆地西北缘石炭系火山岩岩性岩相特征与裂缝分布关系[J].现代地质,2009,23(2):305-311.］
［5］Gao Ruiqin,Yang Jibo,Cong Peidong,et al.Analysis of the characteristics of tuffite reservoir in Erlian Oilfield[J].Well Logging Technology,2006,30(4):330-333.［高瑞琴,杨继波,丛培栋,等.二连油田沉凝灰岩储集层特征分析[J].测井技术,2006,30(4):330-333.］
［6］Liu Juntian.Weathering crust model and recognition of Carboniferous Kalagang Formation(C₂k) volcanic rocks in Niudong block,Santanghu Basin[J].Natural Gas Geoscience,2009,20(1):57-62.［刘俊田.三塘湖盆地牛东地区石炭系卡拉岗组火山岩风化壳模式与识别[J].天然气地球科学,2009,20(1):57-62.］
［7］Liu Juntian,Zhu Youxin,Li Zaiguang,et al.Characteristics and controlling factors of volcanic reservoir of Carboniferous in Santanghu Basin[J].Lithologic Reservoirs,2009,21(3)：23-28.［刘俊田,朱有信,李在光,等.三塘湖盆地石炭系火山岩油藏特征及主控因素[J].岩性油气藏,2009,21(3)：23-28.］
［8］Liu Juntian,Jiao Lixin,Zhang Rigong,et al.Well logging evaluation of Carboniferous volcanic reservoirs in Niudong block,Santanghu Basin[J].Natural Gas Geoscience,2009,20(4):518-524.［刘俊田,焦立新,张日供,等.三塘湖盆地牛东区块石炭系火山岩储集层测井评价[J].天然气地球科学,2009,20(4):518-524.］
［9］Gong Qingshun,Ni Guohui,Lu Shuping,et al.Genesis and reservoir features of tuffaceous rocks in Wuerhe Oilfield of the Junggar Basin[J].Oil and Gas Geology,2010,31(4):481-485.［宫清顺,倪国辉,芦淑萍,等.准噶尔盆地乌尔禾油田凝灰质岩成因及储集层特征[J].石油与天然气地质，2010,31(4):481-485.］
［10］Wang Peng,Pan Jianguo,Wei Dongtao,et al.A new type of hydrocarbon source rock-sedimentary tuff[J].Journal of Xi'an Shiyou University:Natural Science Edition,2011,26(4):19-22.［王鹏,潘建国,魏东涛,等.新型烃源岩—沉凝灰岩[J].西安石油大学学报:自然科学版,2011,26(4):19-22.］
［11］Li Jun,Wang Wei,Wang Shuxun.Bedded tuff reservoir in Qingxi Oilfield[J].Xinjiang Petroleum Geology,2004,25(3):288-290.［李军，王炜，王书勋.青西油田沉凝灰岩储集特征[J].新疆石油地质，2004,25(3):288-290.］
［12］Liu Juntian,Ren Shuling,Zeng Wen,et al.Lithologic reservoir accumulation conditions and controlling factors of Xishanyao Group in Malang Depression[J].Xinjiang Oil and Gas,2014,10(1):1-6.［刘俊田,任淑玲,曾文,等.马朗凹陷西山窑组岩性油藏成藏条件与主控因素[J].新疆石油天然气,2014,10(1):1-6.］
［13］Liu Juntian,Mou Lansheng,Ren Hong,et al.Carboniferous-Permian petroleum geology and exploration direction of Tiaohu Depression in Santanghu Basin[J].Xinjiang Oil and Gas,2011,7(4):1-6.［刘俊田,牟兰昇,任红,等.三塘湖盆地条湖凹陷石炭—二叠系石油地质条件及勘探方向[J].新疆石油天然气,2011,7(4):1-6.］
［14］Jia Chengzao,Zou Caineng,Li Jianzhong,et al.Assessment criteria,main type,basic features and resource prospects of the tight oil in China[J].Acta Petrolei Sinica,2012,33(3):343-350.［贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350.］
［15］Zou Caineng,Zhu Rukai,Bai Bin,et al.First discovery of nano-pore throat in oil and gas reservoir in China and its scientific value[J].Acta Petrologica Sinica,2011,27(6):1857-1864.［邹才能,朱如凯,白斌,等.中国油气储集层中纳米孔首次发现及其科学价值[J].岩石学报,2011,27(6):1857-1864.］
［16］Peng Caizhen,Li Zhiping,Jia Minhui.Anylysis of characteristics of capillary pressuer curves from low-permeability oil reservoirs and application of the method[J].Journal of Southwest Petroleum Institute,2002,24(2):21-24.［彭彩珍,李治平,贾闽惠.低渗透油藏毛管压力曲线特征分析及应用[J].西安石油学院学报,2002,24(2):21-24.］
［17］Xin Changjing,He Youbin,Dong Guiyu.The application of the capillary pressure curve in microcosmic reservoir heterogeneity[J].Henan Petroleum,2006,20(3):57-59.［辛长静,何幼斌,董桂玉.毛管压力曲线在储集层微观非均质性研究中的应用[J].河南石油,2006,20(3):57-59.］

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献