自生绿泥石对砂岩储集层影响的新认识

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (4): 338-341.

自生绿泥石对砂岩储集层影响的新认识

公繁浩¹, 鲍志东¹, 范正平², 伍星¹, 刘丽¹

1.中国石油大学地球科学学院油气资源与探测国家重点实验室,北京 102249;
2.中国石油长庆油田分公司第五采油厂,西安 710200

收稿日期:2010-12-13 出版日期:2011-08-01 发布日期:2020-08-19
作者简介:公繁浩（1981-）,男,辽宁抚顺人,在读博士研究生,沉积学,（Tel）010-89733177（E-mail）gfh1981@yahoo.com.cn.
基金资助:
国家973 项目（2006CB202304）; 鄂尔多斯盆地大型岩性地层油气勘探开发示范工程（2008ZX05044）

New Sight about Affect of Authigenic Chlorite on Sandstone Reservoir

GONG Fan-hao¹, BAO Zhi-dong¹, FAN Zheng-ping², WU Xing¹, LIU Li¹

1. State Key Laboratory of Petroleum Resources and Prospecting, College of Earth Sciences, China University of Petroleum, Beijing 102249, China;
2. No.5 Oil Production Plant, Changqing Oilfield Company, PetroChina, Xi'an, Shaanxi 710200, China

Received:2010-12-13 Online:2011-08-01 Published:2020-08-19

摘要/Abstract

摘要： 通过对鄂尔多斯盆地西部姬塬地区三叠系延长组的岩石铸体薄片分析和扫描电镜的观察认为,早期自生绿泥石胶结对原生孔隙的转化、保存和改造起重要作用,主要表现为占据原生孔,并将其转化为黏土矿物晶间孔的形式,从空间上阻碍硅质胶结、碳酸盐胶结对孔隙的破坏,为后期流体改造储集层提供了通道;其亲油的黏土矿物属性,为后期油气在低孔、低渗储集层中成藏提供了条件。另外,因绿泥石化学性质较活泼,易发生水解,在开发具有绿泥石胶结的油藏时,应考虑到黏土矿物的敏感性。研究认为,绿泥石环边形成后储集层仍有较强的压实现象,前人认为的抗压能力可能被夸大。

关键词: 鄂尔多斯盆地, 延长组, 自生绿泥石, 储集层, 碳酸盐胶结, 硅质胶结

Abstract: Early authigenic chlorite cementation is of significant effect on the conversion, preservation and reconstruction of primary pores, based on the casting thin section and SEM analyses of Triassic Yanchang formation of Jiyuan area in western Ordos basin. It mainly occupies primary pores, converting them into intercrystal pores of clay minerals which can impede the damages of siliceous and carbonate cements to the pores, providing pathways for late fluid reconstruction of reservoirs. Its oil-wet clay mineral attributes provide condition for late hydrocarbon accumulation in low porosity and low permeability reservoirs. Also, the sensitivity of clay minerals should be taken into consideration when developing chlorite cemented reservoirs due to chlorite’s active and easy hydrolysis chemical properties. Though previous studies show an increase in compressive resistance in chlorite cemented reservoirs, this article demonstrates high compactions after the growth of grain-coating chlorite, which means such a compressive resistance may be overstated.

Key words: Ordos basin, Yanchang formation, authigenic chlorite, reservoir, carbonate cement, siliceous cement

中图分类号:

TE112.22

公繁浩, 鲍志东, 范正平, 伍星, 刘丽. 自生绿泥石对砂岩储集层影响的新认识[J]. 新疆石油地质, 2011, 32(4): 338-341.

GONG Fan-hao, BAO Zhi-dong, FAN Zheng-ping, WU Xing, LIU Li. New Sight about Affect of Authigenic Chlorite on Sandstone Reservoir[J]. Xinjiang Petroleum Geology, 2011, 32(4): 338-341.

参考文献

[1] Baker J C, Havord P J, Martin K R, et al.Diagenesis and petrophysics of the Early Permian Moogooloo sandstone, southern Carnarvon basin, western Australia[J]. AAPG Bulletin, 2000, 84(2):250-265.
[2] 翟晓先,罗宏,阎华,等. 塔里木盆地北部三叠系储层成岩作用[J]. 矿物岩石,1996,16(4):44-53.
[3] 孙治雷,黄思静,张玉修,等. 四川盆地须家河组砂岩储层中自生绿泥石的来源与成岩演化[J]. 沉积学报,2008,26(3):459-468.
[4] 康毅力,罗平亚,焦棣,等. 川西致密砂岩的粘土矿物与潜在地层损害[J]. 西南石油学院学报,1998,20(4):12-16.
[5] 康毅力,罗平亚,沈守文,等. 粘土矿物产状和微结构对地层损害的影响[J]. 西南石油学院学报,1998,20(2):35-37.
[6] 丁晓琪,张哨楠,葛鹏莉,等. 鄂南延长组绿泥石环边与储集性能关系研究[J]. 高校地质学报,2010,16(2):247-254.
[7] 谭先锋,田景春,李祖兵,等. 碱性沉积环境下碎屑岩的成岩演化——以山东东营凹陷陡坡带沙河街组四段为例[J]. 地质通报,2010,29(4):535-543.
[8] 蔡观强,郭锋,刘显太,等. 东营凹陷沙河街组沉积岩碳氧同位素组成的古环境记录[J]. 地球与环境,2009,37(4):347-354.
[9] 陈杨,赵霞飞,刘树根,等. 四川盆地西部海相碎屑岩—陆相碎屑岩的转换过程[J]. 成都理工大学学报(自然科学版),2009,36(6):697-705.
[10] 柳益群,李文厚. 陕甘宁盆地东部上三叠统含油长石砂岩的成岩特点及孔隙演化[J]. 沉积学报,1996,14(3):89-98.
[11] 黄思静,谢连文,张萌,等. 中国三叠系陆相砂岩中自生绿泥石的形成机制及其与储层孔隙保存的关系[J].成都理工大学学报(自然科学版),2004,31(3):273-281.
[12] Bloch S, Lander R H, Bonnell L.Anomalously high porosity and permeability in deeply buried sandstone reservoirs: origin and predictability[J]. AAPG Bulletin,2002,86(2):301-328.
[13] 刘林玉,曲志浩,孙卫,等. 新疆鄯善油田碎屑岩中的粘土矿物特征[J]. 西北大学学报(自然科学版),1998,28(5):77-80.
[14] Billault V, Beaufort D, Baronnet A, et al.A nanopetrographic and textural study of grain-coating chlorites in sandstone reservoirs[J]. Clay Minerals. 2003, 38(3):315-328.
[15] 田建锋,陈振林,凡元芳,等. 砂岩中自生绿泥石的产状、形成机制及其分布规律[J]. 矿物岩石地球化学通报,2008,27(2)
[16] Douillard J M, Salles F, Henry M, et al.Surface energy of talc and chlorite: comparison between electronegativity calculation and immersion results[J]. Journal of Colloid and Interface Science, 2007,305(2):352-360.
[17] Sadoon M, Worden R H.Clay mineral cements in sandstones[M]. Oxford: Blackwell, 2003:32-33.
[18] 王小琳,武平仓,韩亚萍,等. 西峰油田长-8 层注水现状及投注措施效果[J]. 石油勘探与开发,2008,35(3):344-348.
[19] 吴大康,吴学庆,李克华,等. 合水油田长8 储层敏感性及酸化适应性研究[J]. 长江大学学报(自然科学版)理工卷,2010,7(4):72-75.
[20] 田建锋,陈振林,杨友运. 自生绿泥石对砂岩储层孔隙的保护机理[J]. 地质科技情报,2008,27(4):49-54.