中江气田河道砂岩优质储层特征及主控因素

doi:10.11885/j.issn.1674-5086.2020.11.25.02

摘要/Abstract

摘要： 中江气田沙溪庙组河道砂岩储层物性普遍较差，优质储层是控制油气富集高产的主要因素之一。利用铸体薄片、扫描电镜、X衍射和岩芯物性分析资料对优质储层的特征及其主控因素进行分析。结果表明，优质储层孔隙类型以粒间溶孔和残余粒间孔为主，成岩相主要为绿泥石胶结相和绿泥石胶结溶蚀相。早期衬边状绿泥石胶结和晚期溶蚀作用是优质储层形成的关键，构造破裂作用导致的微裂缝能够提高储层渗流能力，对于优质储层的形成也具有促进作用。主分流河道水动力条件强、颗粒粒度大、泥质含量少且早期绿泥石薄膜更为发育，更有利于优质储层的形成；长石含量高的次分流河道次生溶孔发育，储层物性也较好，因此，优质储层多发育于主分流河道和部分长石含量较高的次分流河道微相。

关键词: 川西拗陷, 沙溪庙组, 河道砂岩, 优质储层, 主控因素

Abstract: The sandstone reservoirs of Shaximiao Formation in Zhongjiang Gas Field are generally poor in physical properties. High quality reservoirs are one of the main factors controlling oil and gas enrichment and high yield. The characteristics and controlling factors of high quality reservoir are studied by casting thin section, scanning electron microscope, X diffraction and core physical property analysis data. The results show that the pore types of high quality reservoirs are mainly intergranular dissolved pores and residual intergranular pores, and the diagenetic facies are mainly chlorite cemented facies and chlorite cemented dissolution facies. Early lining chlorite cementation and late dissolution are the key to the formation of high quality reservoirs. Microfractures caused by structural fracture can improve the seepage capacity of reservoirs and promote the formation of high quality reservoirs. The main distributary channel has strong hydrodynamic conditions, large particle size, less argillaceous content and more developed chlorite film in the early stage, which is more conducive to the formation of high-quality reservoirs. The secondary dissolution pores are developed in the secondary distributary channels with high feldspar content, and the reservoirs have good physical properties. Therefore, the high quality reservoirs are mostly developed in the main distributary channels and some secondary distributary channel microfacies with high feldspar content.

Key words: western Sichuan Depression, Shaximiao Formation, channel sandstone, high-quality reservoirs, controlling factors

中图分类号:

TE122

王勇飞, 衡勇. 中江气田河道砂岩优质储层特征及主控因素[J]. 西南石油大学学报(自然科学版), 2023, 45(2): 11-20.

WANG Yongfei, HENG Yong. Characteristics and Main Controlling Factors of High Quality Channel Sandstone Reservoir in Zhongjiang Gas Field[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2023, 45(2): 11-20.

0
/ / 推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://journal15.magtechjournal.com/Jwk_xnzk/CN/10.11885/j.issn.1674-5086.2020.11.25.02

http://journal15.magtechjournal.com/Jwk_xnzk/CN/Y2023/V45/I2/11

参考文献

[1] 韩志艳.松辽盆地梨树断陷营城组-沙河子组成岩作用及对优质储层的控制[J].石油实验地质,2019,41(3):398-403. doi:10.11781/sysydz201903398 HAN Zhiyan. Diagenesis controls on high-quality reservoirs of the Yingcheng-Shahezi formations in the Lishu Fault Depression, Songliao Basin[J]. Petroleum Geology&Experiment, 2019, 41(3):398-403. doi:10.11781/sysydz201903398
[2] 钟大康,朱筱敏,王红军.中国深层优质碎屑岩储层特征与形成机理分析[J].中国科学,2008,51(S1):11-18. doi:10.3321/j.issn:1006-9267.2008.z1.002 ZHONG Dakang, ZHU Xiaomin, WANG Hongjun. Characteristics and genetic mechanism of deep buried clastic eureservoir in China[J]. Science in China, 2008, 51(S1):11-18. doi:10.3321/j.issn:1006-9267.2008.z1.002
[3] 李彦举,张婷,许泰,等.深部优质储层成因机理--以准噶尔盆地阜东斜坡区侏罗系三工河组碎屑岩储层为例[J].西北地质,2019,52(3):151-161. doi:10.19751/j.cnki.61-1149/p.2019.03.013 LI Yanju, ZHANG Ting, XU Tai, et al. Formation mechanism of deeply buried high-quality reservoir:Example from clastic resrevoir of Sangonghe Formation in Fudong Slope Zone, Junggar Basin[J]. Northwesten Geology, 2019, 52(3):151-161. doi:10.19751/j.cnki.61-1149/p.2019.03.013
[4] 杨海军,刘永福,苏洲,等.塔北隆起深层碎屑岩优质储层形成主控因素[J].地质论评,2020,66(1):169-179. doi:10.16509/j.georeview.2020.01.011 YANG Haijun, LIU Yongfu, SU Zhou, et al. The main controlling factors for the formation of high quality clastic reservoirs in deeply buried strata of Tabei Uplift[J]. Geological Review, 2020, 66(1):169-179. doi:10.16509/j.georeview.2020.01.011
[5] 庞小军,王清斌,冯冲,等.渤海海域黄河口凹陷北缘沙河街组优质储层差异及成因[J].沉积学报,2021,39(3):1-18. doi:10.14027/j.issn.1000-0550.2020.022 PANG Xiaojun, WANG Qingbin, FENG Chong, et al. Differences and genesis of high-quality reservoirs in Es₁₊₂ at the northern margin of the Huanghekou Sag, Bohai Sea[J]. Acta Sedimentologica Sinica, 2021, 39(3):1-18. doi:10.14027/j.issn.1000-0550.2020.022
[6] 刘金库,孙永亮,焦旭,等.碎屑岩储层低渗成因及优质储层发育机理--以歧口凹陷歧北斜坡沙二段储层为例[J].天然气地球科学,2016,27(5):799-808. doi:10.11764/j.issn.1672-1926.2016.05.0799 LIU Jinku, SUN Yongliang, JIAO Xu, et al. The genesis of low permeability of high-quality reservoirs in deep-buried clastic rock reservoirs and its development mechanism:A case study of Es₂ Formation in the slope area of Qikou Sag[J]. Natural Gas Geoscience, 2016, 27(5):799-808. doi:10.11764/j.issn.1672-1926.2016.05.0799
[7] 侯云超,樊太亮,王宏语,等.银额盆地拐子湖凹陷深层优质储层特征及形成机理[J].沉积学报,2019,37(4):758-767. doi:10.14027/j.issn.1000-0550.2018.167 HOU Yunchao, FAN Tailiang, WANG Hongyu, et al. Characteristics and formation mechanism of a high-quality reservoir in the deep strata of the Guaizihu Depression, Yin-E Basin[J]. Acta Sedimentologica Sinica, 2019, 37(4):758-767. doi:10.14027/j.issn.1000-0550.2018.167
[8] 马奔奔,操应长,王艳忠,等.车镇凹陷北带古近系中深层优质储层形成机理[J].中国矿业大学学报,2014,43(3):448-457. MA Benben, CAO Yingchang, WANG Yanzhong, et al. Formation mechanism of high-quality reservoir in the middle-deep startain Palaeogene in the north zone of Chezhen Depression[J]. Journal of China University of Mining&Technology, 2014, 43(3):448-457.
[9] 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. doi:10.3969/j.issn.1671-9727.2004.03.009 HUANG Sijing, XIE Lianwen, ZHANG Meng, et al. Formation mechanism of authigenic chlorite and relation to preservation of porosity in nonmarine Triassic reservoir sandstones, Ordos Basin and Sichuan Basin, China[J]. Journal of Chengdu University of Technology (Science&Technology Edition), 2004, 31(3):273-281. doi:10.3969/j.issn.1671-9727.2004.03.009
[10] 崔明明,李进步,王宗秀,等.辫状河三角洲前缘致密砂岩储层特征及优质储层控制因素--以苏里格气田西南部石盒子组8段为例[J].石油学报,2019,40(3):279-294. CUI Mingming, LI Jinbu, WANG Zongxiu, et al. Characteristics of tight sand reservoir and controlling factors of high-quality reservoir at braided delta front:A case study from Member 8 of Shihezi Formation in southwestern Sulige Gas Field[J]. Acta Petrolei Sinica, 2019, 40(3):279-294.
[11] 罗龙,高先志,孟万斌,等.深埋藏致密砂岩中相对优质储层形成机理--以川西坳陷新场构造带须家河组为例[J].地球学报,2017,38(6):930-944. doi:10.3975/cagsb.2017.06.08 LUO Long, GAO Xianzhi, MENG Wanbin, et al. The formation mechanism of the relatively high-quality reservoir in tight sandstones with deep burial:A case study of Xujiahe Formation in Xinchang Structural Belt of western Sichuan Depression[J]. Acta Geoscientica Sinica, 2017, 38(6):930-944. doi:10.3975/cagsb.2017.06.08
[12] 刘四兵,沈忠民,吕正祥,等.川西新场气田上三叠统须二、须四段相对优质储层成因差异性分析[J].吉林大学学报(地球科学版),2015,45(4):993-1001. doi:10.13278/j.cnki.jjuese.201504103 LIU Sibing, SHEN Zhongmin, LÜ Zhengxiang, et al. Contributing factor divergence analysis of relative high quality reservoir of Upper Triassic in the 2nd and 4th Member of Xujiahe Formation of Xinchang Gas Field in west Sichuan[J]. Journal of Jilin University (Earth Science Edition), 2015, 45(4):993-1001. doi:10.13278/j.cnki.jjuese.201504103
[13] 李会军,张文才,朱雷.苏里格气田优质储层控制因素[J].天然气工业,2007,27(12):16-18. doi:10.3321/j.issn:1000-0976.2007.12.004 LI Huijun, ZHANG Wencai, ZHU Lei. Factors controlling reservoirs with high quality in the giant Sulige Gas Field[J]. Natural Gas Industry, 2007, 27(12):16-18. doi:10.3321/j.issn:1000-0976.2007.12.004
[14] 王海燕,孙维昭,张智,等.鄂尔多斯盆地临兴地区上石盒子组致密砂岩储层特征及优质储层形成机制[J].桂林理工大学学报,2018,38(3):392-400. doi:10.3969/j.issn.1674-9057.2018.03.004 WANG Haiyan, SUN Weizhao, ZHANG Zhi, et al. Characteristics of tight sandstone reservoir and formation mechanism of high quality reservoir from the Upper Shihezi Formation in Linxing Area, Ordos Basin[J]. Journal of Guilin University of Technology, 2018, 38(3):392-400. doi:10.3969/j.issn.1674-9057.2018.03.004
[15] 李忠平,冉令波,黎华继,等.窄河道远源致密砂岩气藏断层特征及天然气富集规律--以四川盆地中江气田侏罗系沙溪庙组气藏为例[J].天然气工业,2016,36(7):1-7. doi:10.3787/j.issn.1000-0976.2016.07.001 LI Zhongping, RAN Lingbo, LI Huaji, et al. Fault features and enrichment laws of narrow-channel distal tight sandstone gas reservoirs:A case study of the Jurassic Shaximiao Fm gas reservoir in the Zhongjiang Gas Field, Sichuan Basin[J]. Natural Gas Industry, 2016, 36(7):1-7. doi:10.3787/j.issn.1000-0976.2016.07.001
[16] 衡勇,段新国,王勇飞,等.浅水三角洲分流河道砂体内部结构及其对气水分布的影响--以四川盆地中江气田沙溪庙组为例[J].成都理工大学学报(自然科学版),2022,49(1):1-11. doi:10.3969/j.issn.1671-9727.2022.01.01 HENG Yong, DUAN Xinguo, WANG Yongfei, et al. Internal structure of distributary channel sandbody and its effecton gas-water distribution in shallow-water delta:A case study of Shaximiao Formationin Zhongjiang Gas Field, Sichuan Basin, China[J]. Journal of Chengdu University of Technology (Science&Technology Edition), 2022, 49(1):1-11. doi:10.3969/j.issn.1671-9727.2022.01.01
[17] 刘四兵,沈忠民,吕正祥,等.四川新场地区须四段相对优质储层特征及孔隙演化[J].成都理工大学学报(自然科学版),2014,41(4):428-436. doi:10.3969/j.issn.1671-9727.2014.04.04 LIU Sibing, SHEN Zhongmin, LÜ Zhengxiang, et al. Characteristics and porosity evolution of relatively high-quality reservoirs of T$_3x^4$in Xinchang Area, Sichuan, China[J]. Journal of Chengdu University of Technology (Science&Technology Edition), 2014, 41(4):428-436. doi:10.3969/j.issn.1671-9727.2014.04.04
[18] 冯佳睿,高志勇,崔京钢,等.深层、超深层碎屑岩储层勘探现状与研究进展[J].地球科学进展,2016,31(7):718-736. doi:10.11867/j.issn.1001-8166.2016.07.0718 FENG Jiarui, GAO Zhiyong, CUI Jinggang, et al. The exploration status and research advances of deep and ultra-deep clastic reservoirs[J]. Advances in Earth Science, 2016, 31(7):718-736. doi:10.11867/j.issn.1001-8166.2016.07.0718
[19] 朱宏权.川西坳陷中段沙溪庙组沉积相与储层评价研究[D].成都:成都理工大学,2009. ZHU Hongquan. Depositional facies and reservoir characteristics research and evaluation of Shaximiao Formation, middle arae of western Sichuan Depression[D]. Chengdu:Chengdu University of Technology, 2009.
[20] 吕正祥,杨相,卿元华,等.川西坳陷中段沙溪庙组砂岩中水-岩-烃作用特征[J].石油与天然气地质,2015,36(4):545-554. doi:10.11743/ogg20150403 LÜ Zhengxiang, YANG Xiang, QING Yuanhua, et al. Water-rock-hydrocarbon interactions in the Middle Jurassic Shaximiao Formation sandstones, western Sichuan[J]. Oil&Gas Geology, 2015, 36(4):545-554. doi:10.11743/ogg20150403
[21] 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. doi:10.3969/j.issn.1006-7493.2010.02.012 DING Xiaoqi, ZHANG Shaonan, GE Pengli, et al. Relationship between reservoir properties and chlorite rims:A case study from Yanchang Formation of south Ordos Basin, north China[J]. Geological Journal of China Universities, 2010, 16(2):247-254. doi:10.3969/j.issn.1006-7493.2010.02.012
[22] 向芳,冯钦,张得彦,等.绿泥石环边的再研究--来自镇泾地区延长组砂岩的证据[J].成都理工大学学报(自然科学版),2016,43(1):59-67. doi:10.3969/j.issn.1671-9727.2016.01.06 XIANG Fang, FENG Qin, ZHANG Deyan, et al. Further study of chlorite rim in sandstone:Evidences from Yanchang Formation in Zhenjing Area, Ordos Basin, China[J]. Journal of Chengdu University of Technology (Science&Technology Edition), 2016, 43(1):59-67. doi:10.3969/j.issn.1671-9727.2016.01.06
[23] 郭迎春,庞雄奇,陈冬霞,等.川西坳陷中段陆相地层压力演化及其成藏意义[J].石油勘探与开发,2012,39(4):426-433. GUO Yingchun, PANG Xiongqi, CHEN Dongxia, et al. Evolution of continental formation pressure in the middle part of the western Sichuan Depression and its significance for hydrocarbon accumulation[J]. Petroleum Exploration and Development, 2012, 39(4):426-433.
[24] 吴胜和.储层表征与建模[M].北京:石油工业出版社,2010. WU Shenghe. Reservoir characterization and modeling[M]. Beijing:Petroleum Industry Press, 2010.
[25] 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):200-205. doi:10.3969/j.issn.1007-2802.2008.02.015 TIAN Jianfeng, CHEN Zhenlin, FAN Yuanfang, et al. The occurrence growth mechanism and distribution of authigenic chlorite in sandstone[J]. Bulletin of Mineralogy Petrology and Geochemistry, 2008, 27(2):200-205. doi:10.3969/j.issn.1007-2802.2008.02.015