济阳坳陷沙河街组湖相页岩储层孔隙定性描述及全孔径定量评价

doi:10.11743/ogg20180602

石油与天然气地质 ›› 2018, Vol. 39 ›› Issue (6): 1107-1119.doi: 10.11743/ogg20180602

济阳坳陷沙河街组湖相页岩储层孔隙定性描述及全孔径定量评价

王民^1,2, 关莹², 李传明², 刘洋², 刘薇², 徐健鹏², 李政³, 卢双舫^1,2

1. 中国石油大学(华东) 深层油气地质与地球物理教育部重点实验室, 山东青岛 266580;
2. 中国石油大学(华东) 地球科学与技术学院, 山东青岛 266580;
3. 中国石化胜利油田分公司勘探开发研究院, 山东东营 257015

收稿日期:2017-12-18 修回日期:2018-08-20 出版日期:2018-12-28 发布日期:2018-10-22
通讯作者: 卢双舫(1962-),男,教授、博士生导师,石油地质和地球化学。E-mail:lushuangfang@qq.com。 E-mail:lushuangfang@qq.com
作者简介:王民(1981-),男,教授、博士生导师,非常规油气地质。E-mail:wangm@upc.edu.cn。
基金资助:
国家自然科学基金项目（41672116，41330313）;中央高校基本科研业务费专项资金项目（17CX05012）。

Qualitative description and full-pore-size quantitative evaluation of pores in lacustrine shale reservoir of Shahejie Formation,Jiyang Depression

Wang Min^1,2, Guan Ying², Li Chuanming², Liu Yang², Liu Wei², Xu Jianpeng², Li Zheng³, Lu Shuangfang^1,2

1. Key Laboratory of Deep Oil and Gas Geophysicss, Ministry of Eduation, China University of Petroleam(East China), Qingdao, Shandong 266580, China;
2. School of Geosciences, China University of Petroleum(East China), Qingdao, Shandong 266580, China;
3. Research Institute of Exploration and Development of Shengli Oilfield Company Ltd., SINOPEC, Dongying, Shandong 257015, China

Received:2017-12-18 Revised:2018-08-20 Online:2018-12-28 Published:2018-10-22

摘要/Abstract

摘要： 以济阳坳陷沙河街组纹层状页岩为例，采用大面积视域拼接扫描电镜、低温N₂/CO₂吸附和高压压汞实验，定性分析页岩有机质纹层、矿物与孔隙形态，定量评价孔隙大小与分布，同时对比洗油前后页岩孔隙分布特征，探讨页岩油可能的富集空间。研究样品中发育条带状和分散状分布的有机质和方解石，粘土矿物与石英分布样式复杂。尽管研究样品处于低熟—成熟生油阶段，其中仍然发育较多的有机质孔，可能是部分油气（尤其是轻质部分）流出/逃逸后结果，此外还发育大量粒间孔、粒内孔和微裂缝。采用低温N₂吸附（反映小于100 nm的孔隙）、高压压汞（反映100 nm至十几μm的孔隙）和大面积视域拼接SEM扫描可以有效全尺度反映湖相页岩富集空间。页岩连通储集空间由纳米级孔隙（小于300 nm）和微米尺度的微裂缝（0.5至十几μm）构成，页岩油则主要富集在小于100 nm的孔隙和大于1 μm尺度的微裂缝中。本文所采用的分析方法及结论可供其它生油阶段页岩的相关研究所借鉴。

关键词: 大面积视域拼接, 低温N₂/CO₂吸附, 高压压汞, 储集空间, 湖相纹层状页岩, 济阳坳陷

Abstract: The organic matter lamina,mineral composition,and pore geometry of the lamellar shale from the Shahejie Formation,Jiyang Depression,were qualitatively analyzed and the size and distribution of pores were quantitatively studied,through combined experimental methods,such as the large-area visual field splicing scanning electron microscope(SEM) technology,low temperature N₂/CO₂ adsorption experiment,and high pressure mercury intrusion experiment.Meanwhile,the characteristics of pore distribution before and after core cleaning were compared,and the possible spaces for shale oil enrichment were analyzed.The organic matter and calcite in the samples studied are distributed in both banded and dispersed forms,and the distribution of clay minerals and quartz is complex.Although the shale samples studied are in the stage of low maturity-oil generation,organic pores are still well developed in them,which may be ascribed to the efflux or escape of some hydrocarbons(especially the light oil and gas).In addition,large number of intergranular pores,intragranular pores and micro-cracks are also developed.Low-temperature N₂ adsorption experiment(used to describe pores with diameter being less than 100 nm)and high-pressure mercury intrusion experiment(used to describe pores with diameter ranging from 100 nm to a dozen μm)and large-area visual field splicing SEM scanning can effectively reflect the full size of lacustrine shale reservoir space.Interconnected reservoir space of shale is composed of pores of nano-scale(with pore diameter being less than 300 nm)and micro-fractures(with the width of 0.5 to a dozen of μm)in micrometer scale.While shale oil mainly accumulates in pores less than about 100 nm and micro-cracks larger than about 1 μm.The analytical methods and conclusions presented in this study can be of referential value to the related studies on shale during its oil generation stage.

Key words: large-area visual splicing, low-temperature N₂/CO₂ adsorption, high pressure mercury injection, reservoir space, lamellar lacustrine shale, Jiyang Depression

中图分类号:

TE122.2

王民,关莹,李传明,等. 济阳坳陷沙河街组湖相页岩储层孔隙定性描述及全孔径定量评价[J]. 石油与天然气地质, 2018, 39(6): 1107-1119. doi: 10.11743/ogg20180602 Wang Min,Guan Ying,Li Chuanming,et al. Qualitative description and full-pore-size quantitative evaluation of pores in lacustrine shale reservoir of Shahejie Formation,Jiyang Depression[J]. Oil & Gas Geology, 2018, 39(6): 1107-1119. doi: 10.11743/ogg20180602

参考文献

[1] Loucks R G,Reed R M,Ruppel S C,et al.Morphology,genesis,and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett shale[J].Journal of Sedimentary Research.2009,79(12):848-861.
[2] Bernard S,Horsfield B,Schulz H,et al.Geochemical evolution of organic-rich shales with increasing maturity:A STXM and TEM study of the Posidonia Shale(Lower Toarcian,northern Germany)[J].Marine and Petroleum Geology,2012,31(1):70-89.
[3] Heath J E,Dewers T A,Mcpherson B J O L,et al.Pore networks in continental and marine mudstones:Characteristics and controls on sealing behavior[J].Geosphere,2011,7(2):429-454.
[4] Mastalerz M,He L,Melnichenko Y B,et al.Porosity of coal and shale:insights from gas adsorption and SANS/USANS techniques[J].Energy & Fuels,2012,26(8):5109-5120.
[5] Zhang P,Lu S,Li J,et al.Comparisons of SEM,low-Field NMR,and Mercury Intrusion Capillary Pressure in characterization of the pore size distribution of lacustrine shale:A Case Study on the Dongying Depression,Bohai Bay Basin,China[J].Energy & Fuels,2017,31(9):9232-9239.
[6] 宋国奇,徐兴友,李政,等.济阳坳陷古近系陆相页岩油产量的影响因素[J].石油与天然气地质,2015(3):463-471. Song Guoqi,Xu Xingyou,Li Zheng,et al.Factors controlling oil production from Paleogene shale in Jiyang depression[J].Oil & Gas Geology,2015,36(3):463-4471.
[7] 李政,王秀红,朱日房,等.济阳坳陷沙三下亚段和沙四上亚段页岩油地球化学评价[J].新疆石油地质,2015(05):510-514. Li Zheng,Wang Xiuhong,Zhu Rifang,et al.Geochemical evaluation of shale oil in lower Es³ and upper Es⁴ in Jiyang depression[J].Xinjiang Petroleum Geology,2015(05):510-514.
[8] Wang M,Wilkins R W T,Song G,et al.Geochemical and geological characteristics of the Es3L lacustrine shale in the Bonan sag,Bohai Bay Basin,China[J].International Journal of Coal Geology.2015,138:16-29.
[9] 林畅松,郑和荣,任建业,等.渤海湾盆地东营、沾化凹陷早第三纪同沉积断裂作用对沉积充填的控制[J].中国科学(D辑:地球科学),2003(11):1025-1036. Lin Changsong,Zheng Herong,Ren Jianye,et al.Control of sedimentary filling of the Early Tertiary sedimentary faults in the Dongying and Zhanhua sag of the Bohai Bay Basin[J].Scinece in China Series D:Earth Sciences,2003(11):1025-1036.
[10] 黄振凯,陈建平,王义军,等.利用气体吸附法和压汞法研究烃源岩孔隙分布特征——以松辽盆地白垩系青山口组一段为例[J].地质论评,2013(03):587-595. Huang Zhenkai,Chen Jianping,Wang Yijun,et al.Pore distribution of source rocks as reavealed by gas adsorption and mercury injection methods:a case study on the first Member of the Cretaceous Qingshankou Formation in the Songliao Basin[J].Geological Review,2013(03):587-595.
[11] Wang M,Tian S,Chen G,et al.Correction method of light hydrocarbons losing and heavy hydrocarbon handling for residual hydrocarbon(S₁) from shale[J].Acta Geologica Sinica-English Edition,2014,88(6):1792-1797.
[12] Mbu K,Prasad M.Mineralogy and its contribution to anisotropy and kerogen stiffness variations with maturity in the Bakken Shales[C]//SEG Denver 2010 Annual Meeting,2612-2616.
[13] Chermak J A,Schreiber M E.Mineralogy and trace element geoche-mistry of gas shales in the United States:Environmental implications[J].International Journal of Coal Geology,2014,126:32-44.
[14] 王冠民,任拥军,钟建华,等.济阳坳陷古近系黑色页岩中纹层状方解石脉的成因探讨[J].地质学报,2005(06):834-838. Wang Guanmin,Ren Yongjun,Zhong Jianhua,et al.Genetic analysis on lamellar calcite veins in Paleogene black shale of the Jiyang Depression[J].Acta Geologica Sinica,2005(06):834-838.
[15] Loucks R G,Reed R M,Ruppel S C,et al.Spectrum of pore types and networks in mudrocks and a descriptive classification for matrix-related mudrock pores[J].AAPG Bulletin,2012,96(6):1071-1098.
[16] 孙超,姚素平,李晋宁,等.东营凹陷页岩油储层特征[J].地质论评,2016,62(6):1499-41512. Sun Chao,Yao Suping,Li Jinning,et al.The characterization of shale oil reservoir in Dongying Sag[J].Geological Review,2016,62(6):1499-1512.
[17] 张顺,刘惠民,宋国奇,等.东营凹陷页岩油储集空间成因及控制因素[J].石油学报,2016(12):1495-1507. Zhang Shun,Liu Huimin,Song Guoqi,et al.Genesis and control factors of shale oil reserving space in Dongying sag[J].Acta Petrolei Sinica,2016(12):1495-1507.
[18] Jiu K,Ding W,Huang W,et al.Fractures of lacustrine shale reservoirs,the Zhanhua Depression in the Bohai Bay Basin,eastern China[J].Marine and Petroleum Geology,2013,48:113-123.
[19] Curtis M E,Cardott B J,Sondergeld C H,et al.Development of organic porosity in the Woodford Shale with increasing thermal maturity[J].International Journal of Coal Geology,2012,103:26-31.
[20] Fishman N S,Hackley P C,Lowers H A,et al.The nature of porosity in organic-rich mudstones of the Upper Jurassic Kimmeridge Clay Formation,North Sea,offshore United Kingdom[J].International Journal of Coal Geology,2012,103:V32-50.
[21] Reed R M,Loucks R G,Ruppel S C.Comment on "Formation of nanoporous pyrobitumen residues during maturation of the Barnett Shale(Fort Worth Basin)" by Bernard et al.(2012)[J].International Journal of Coal Geology,2014,127:111-113.
[22] 张琴,朱筱敏,李晨溪,等.渤海湾盆地沾化凹陷沙河街组富有机质页岩孔隙分类及孔径定量表征[J].石油与天然气地质,2016(03):422-432. Zhang Qin,Zhu Xiaomin,Li Chenxi,et al.Classification and quantitative characterization of microscopic pores in organic-rich shale of the Shahejie Formation in the Zhanhua Sag,Bohai Bay Basin[J].Oil & Gas Geology,2016(03):422-432.
[23] 刘毅,陆正元,戚明辉,等.渤海湾盆地沾化凹陷沙河街组页岩油微观储集特征[J].石油实验地质,2017(02):180-4185. Liu Yi,Lu Zhengyuan,Qi Minghui,et al.Microscopic characteristics of shale oil reservoirs in Shahejie Formation in Zhanhua Sag,Bohai Bay Basin[J].Petroleum Geology & Experiment,2017(02):180-185.
[24] Chen G,Lu S,Zhang J,et al.Investigation of oil-bearing pore size distribution in Lacustrine Shale[J].Energy and Fuels,2017,submitted.
[25] Wang S,Javadpour F,Feng Q.Molecular dynamics simulations of oil transport through inorganic nanopores in shale[J].Fuel,2016,171:74-86.
[26] Falk K,Coasne B,Pellenq R,et al.Subcontinuum mass transport of condensed hydrocarbons in nanoporous media[J].Nature Communications,2015:6-6949.

济阳坳陷沙河街组湖相页岩储层孔隙定性描述及全孔径定量评价

Qualitative description and full-pore-size quantitative evaluation of pores in lacustrine shale reservoir of Shahejie Formation,Jiyang Depression

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