胜坨地区沙四上亚段近岸水下扇相砂砾岩体成岩矿物类型及分布特征

张立强，罗晓容，肖欢，高永明，田禀睿

doi:10.11764/j.issn.1672-1926.2015.01.0013

天然气地球科学 >

2015 , Vol. 26 >Issue 1: 13 - 20

DOI: https://doi.org/10.11764/j.issn.1672-1926.2015.01.0013

天然气地质学

胜坨地区沙四上亚段近岸水下扇相砂砾岩体成岩矿物类型及分布特征

展开

1.中国石油大学(华东)地球科学与技术学院，山东青岛 266580；2.中国科学院地质与地球物理研究所，北京 100029

张立强(1970-)，男，山东曲阜人，教授，博士，主要从事油气储层地质学及层序地层学研究. E-mail:liqiangzhangwxm@163.com.

收稿日期: 2014-05-10

修回日期: 2015-01-14

网络出版日期: 2015-01-10

基金资助

国家科技重大专项“深层油气、非常规天然气成藏规律与有利勘探区评价技术”(编号:2011ZX05008-004)|国家“973”课题“中国西部叠合盆地深部油气复合成藏机制与分布模式”(编号:2011CB201105)联合资助.

收起

Types and Distribution of Diagenetic Alterations in the Nearshore Subaqueous Fan of the Upper Es₄ in Shengtuo Area of Dongying Depression

Expand

1.School of Geosciences,China University of Petroleum,Qingdao 266580,China;
2.Institute of Geology and Geophysics of Chinese Academy of Sciences,Beijing 100029,China

Received date: 2014-05-10

Revised date: 2015-01-14

Online published: 2015-01-10

Fold

摘要

成岩矿物的类型及分布影响着砂砾岩体油藏的储层预测。根据岩心观察、薄片岩石学分析、物性和碳氧同位素测试等多种技术方法，对东营凹陷北部陡坡带胜坨地区沙四上亚段近岸水下扇砂砾岩体的不同相带、不同成岩期的成岩产物及分布特征进行了研究。研究表明，近岸水下扇相砂砾岩体的成岩产物类型多样，早成岩期主要包括机械渗滤的黏土、方解石和白云石胶结，中成岩期主要包括铁方解石和铁白云石胶结、伊利石等黏土胶结、石英次生加大等。近岸水下扇相砂砾岩体的成岩产物与沉积相带的对应关系较好，早期的机械渗滤黏土在扇根沟道和沟道间砂砾岩中丰富，方解石和白云石胶结在扇根和扇端非常发育|铁方解石和铁白云石胶结、石英次生加大等在扇中沟道砂砾岩中更发育。早期成岩产物的分布以及中成岩期的后续影响对储层储集质量的改变有重要意义，扇中沟道砂砾岩溶蚀作用发育、储集性能好，广泛发育的扇根和扇端早期成岩方解石胶结层可作为砂岩油气储层的潜在封堵层。

关键词： 成岩作用; 沉积相; 近岸水下扇; 古近系; 东营凹陷

本文引用格式

张立强，罗晓容，肖欢，高永明，田禀睿 . 胜坨地区沙四上亚段近岸水下扇相砂砾岩体成岩矿物类型及分布特征[J]. 天然气地球科学, 2015 , 26(1) : 13 -20 . DOI: 10.11764/j.issn.1672-1926.2015.01.0013

Abstract

Based on observation of core and thin section,combined with petro-physical property,isotopes,and other experimental analyses,types and distribution of diagenetic alterations in different depositional facies and different diagenetic stages were studied from the nearshore subaqueous fans of the Upper Es₄ sandstones in Shengtuo area of Dongying Depression.Diagenetic alterations which were encountered in the nearshore subaqueous fans are diverse.Eogenetic diagenetic alterations include mechanically infiltrated clays,calcite and dolomite cementation.Mesogenetic alterations include ferruginous calcite and ferruginous dolomite cementation,diagenetic clay mineral cementation,quartz overgrowths,and so on.Relationship between diagenetic alterations and facies in the nearshore subaqueous fans are very clear.Eogenetic mechanically infiltrated clays are abundant in sandy conglomerate of channels and interchannels of inner fans.Eogenetic calcite and dolomite cementation are extensive in inner and outer fans.Ferruginous calcite and ferruginous dolomite cementation,and quartz overgrowths are most abundant in mid-fan sandbodies than that in inner and outer fans sandbodies.Dissolution is most clear and reservoir property is best in midfan channel sandbodies.Extensive calcite cements may act as potential sealing layers for the reservoir compartments of underlying sandstones.Integration of diagenesis with depositional facies of nearshore subaqueous fans is beneficial to predict the distribution of diagenetic alterations,and thus on prediction of favorable reservoirs.

Key words： Diagenetic alterations; Sedimentary facies; Nearshore subaqueous fans; Paleogene; Dongying Depression

参考文献

［1］Morad S,Ramadan K A,Ketzer J M,et al.The impact of diagenesis on the heterogeneity of sandstone reservoirs:A review of the role of depositional facies and sequence stratigraphy[J].AAPG Bulletin,2010,94(8):1267-1309.
［2］Jing Cheng,Pu Chunsheng,Zhou You,et al.Quantitatively evaluating relatively beneficial reservoir of tight gas reservoirs based on diagenetic reservoir facies log response feature:Taking the diagenetic reservoir facies classification of the He8-1 in the tight gas reservoir of　SULG east area as an example[J].Natural Gas Geoscience,2014,25(5):657-664.［景成,蒲春生,周游,等.基于成岩储集相测井响应特征定量评价致密气藏相对优质储层——以SULG东区致密气藏盒８上段成岩储集相为例[J].天然气地球科学,2014,25(5):657-664.］
［3］Chu Meijuan,Guo Zhengquan,Qi Yalin,et al.Quantitative diagenesis and diagenetic facies analysis on Chang8 reservoir of Yanchang Formation in Ordos Basin[J].Natural Gas Geoscience,2013,24(3):477-486.［楚美娟,郭正权,齐亚林,等.鄂尔多斯盆地延长组长８储层定量化成岩作用及成岩相分析[J].天然气地球科学,2013,24(3):477-486.］
［4］Morad S,Ketzer J M,De Ros L F.Spatial and temporal distribution of diagenetic alterations in siliciclastic rocks:Implications for mass transfer in sedimentary basins[J].Sedimentology,2000,47(supplement 1):95-120.
［5］Bloch S,Lander R H,Bonell L.Anomalously high porosity and permeability in deeply buried sandstones reservoirs:Origin and predictability[J].AAPG Bulletin,2002,86(2):301-328.
［6］Luo J,Hlal O,Morad S,et al.Diagenetic and reservoir quality evolution of fluvial and lacustrine deltaic sandstones:Evidence from Jurassic and Triassic sandstones of the Ordos Basin,northwestern China[J].Journal of Petroleum Geology,2009,32(1):79-102.
［7］Kong Fanxian.Prospecting for sand gravel body in the northern steep slope of Dongying Depression[J].Oil Geophysical Prospecting,2000,35(5):669-676.［孔凡仙.东营凹陷北部陡坡带砂砾岩体的勘探[J].石油地球物理勘探,2000,35(5):669-676.］
［8］Kong Fanxian.Exploration technique and practice of sandy conglomeratic fans in the northern part of Dongying Depression[J].Acta Petroleum Sinica,2000,21(5):27-31.［孔凡仙.东营凹陷北带砂砾岩扇体勘探技术与实践[J].石油学报,2000,21(5):27-31.］
［9］Sun Longde.Sandstone conglomerate bodies in Sha3-4 members and hydrocarbon accumulation in northern slope of Dongying Sag[J].Acta Sedimentologica Sinica,2003,21(2):278-282.［孙龙德.东营凹陷北部斜坡带沙三—四段砂砾岩体与油气聚集[J].沉积学报,2003,21(2):278-282.］
［10］Sui Fenggui,Cao Yingchang,Liu Huimin,et al.Physical properties evolution and hydrocarbon accumulation of Paleogene nearshore subaqueous fan in the eastern north margin of the Dongying Depression[J].Acta Geologica Sinica,2010,84(2):246-256.［隋风贵,操应长,刘惠民,等.东营凹陷北带东部古近系近岸水下扇储集物性演化及其油气成藏模式[J].地质学报,2010,84(2):246-256.］
［11］Zhang Jinliang,Zhang Xin.The glutenite sedimentary facies and hydrocarbon distribution in the upper fourth member of Shahejie Formation in Shengtuo area[J].Acta Sedimentologica Sinica,2008,26(3):361-368.［张金亮,张鑫.胜坨地区沙河街组沙四上亚段砂砾岩体沉积相与油气分布[J].沉积学报,2008,26(3):361-368.］
［12］Feng Youliang.Lower Tertiary sequence stratigraphic framework and basin filling model in Dongying Depression[J].Earth Science:Journal of China University of Geosciences,1999,24(6):635-642.［冯有良.东营凹陷下第三系层序地层格架及盆地充填模式[J].地球科学:中国地质大学学报,1999,24(6):635-642.］
［13］Zhang Liqiang,Yang Wan.Multi-provenance depositional model of paleo gully in north steep slope of Dongying Depression of upper Es₄ in Paleogene[J].Journal of Central South University:Science and Technology,2012,84(8):3159-3165.［张立强,杨晚.东营凹陷北带古冲沟古近系多物源沉积模式[J].中南大学学报:自然科学版,2012,84(8):3159-3165.］
［14］Tian Jijun,Jiang Zaixing.Sequence stratigraphy characteristics and sedimentary system evolution of upper Es₄ in the Dongying Depression[J].Acta Geologica Sinica,2009,83(6):836-846.［田继军,姜在兴.东营凹陷沙河街组四段上亚段层序地层特征与沉积体系演化[J].地质学报,2009,83(6):836-846.］
［15］Guo Hongli,Wang Darui.Stable isotopic composition and origin analysis of the carbonate cements within sandstone reservoirs of Tarim oil gas bearing area[J].Petroleum Exploration and Develoment,1999,26(3):31-35.［郭宏莉,王大锐.塔里木油气区砂岩储集层碳酸盐胶结物的同位素组成与成因分析[J].石油勘探与开发,1999,26(3):31-35.］

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献