收稿日期: 2015-04-28
修回日期: 2015-05-22
网络出版日期: 2015-09-10
基金资助
国家重点基础研究发展计划项目(编号:2012CB214701);构造与油气资源教育部重点实验室开放课题(编号:TPR-2012-20);教育部科学技术研究重大项目(编号:311010)联合资助.
A Discussion on Measuring Methods of Shale Mineral Components
Received date: 2015-04-28
Revised date: 2015-05-22
Online published: 2015-09-10
X-射线衍射(XRD)是测定页岩矿物组成的基本方法,其定量精度受到矿物种类、衍射能力、粒度和衍射峰重叠等多种因素影响。选择四川盆地黔浅1井页岩进行矿物组分测定,通过2种实验结果对比,找出提高页岩矿物组分定量精度的方法。方法1:全岩XRD直接测定与定量;方法2:经物相溶解、Stokes重力分离后,对不同粒级的矿物分别进行XRD测定与定量。结果显示,通过2种实验方法获得的碳酸盐类矿物的百分含量差别较大,反映了直接XRD定量方法在矿物组分含量测定中并不是完全可信的。经物相溶解及重力分离后进行XRD测试,可很大程度上提高测试精度,同时获得的页岩中矿物不同粒度的含量对认识页岩成岩过程及页岩性质较各单矿物含量更具有实际意义。
刘玉祥,王开亮,胡沛青,李万茂 . 页岩中矿物组分测定方法探讨[J]. 天然气地球科学, 2015 , 26(9) : 1737 -1743 . DOI: 10.11764/j.issn.1672-1926.2015.09.1737
X-ray diffraction is a basic method for determination of shale mineral composition, quantitative accuracy by diffraction by mineral composition,particle size,the diffraction peaks overlap,and other factors.Choose well QQ1# drilling wells hole samples in Sichuan Basin shale mineral components determined,by comparison with two kinds of experimental results,find out the methods of improving the precision for quantitative shale mineral components.Method 1: Whole rock direct determination and quantitative XRD;Method 2: The phase after dissolving stokes gravity separation of different graded mineral XRD measurement and quantitative respectively.Results showed that through two experimental methods have a greater difference between the percentage of carbonate minerals,directly reflects the XRD quantitative methods in the content of mineral component is not fully trusted.The phase after dissolving and gravity separation XRD test can largely improve the test precision and shale in the mineral content of different granularity of shale diagenesis and shale properties than the single mineral content has more practical significance.
Key words: Mineral composition in shale; XRD; Quantitative analysis; Sichuan Basin
[1]Ross D J K,Bustin R M.The importance of shale composition and pore structure upon gas storage potential of shale gas reservoirs[J].Marine and Petroleum Geology,2009,26(6):916-927.
[2]Chalmers G R,Bustin R M,Power I M.Characterization of gas shale pore systems by porosimetry,pycnometry,surface area,and field emission scanning electron microscopy/transmission electron microscopy image analyses:Examples from the Barnett,Woodford,Haynesville,Marcellus,and Doigunits[J].AAPG Bulletin,2012,96(6):1099-1119.
[3]Strapoc′D,Mastalerz M,Schimmelmann A,et al.Geochemical constraints on the origin and volume of gas in the New Albany Shale(Devonian-Mississippian),eastern Illinois Basin[J].AAPG Bulletin,2010,94(11):1713-1740.
[4]Bhargava S,Awaja F,Subasinghe N D.Characterisation of some Australian oil shale using thermal,X-ray and IR techniques[J].Fuel,2005,84(6):707-715.
[5]Patterson J H,Henstridge D A.Comparison of the mineralogy and geochemistry of the Kerosene Creek Member,Rundle and Struart oil shale deposites,Queensland,Australia[J].Chemical Geology,1990,(82):319-339.
[6]Jarvie D M,Hill R J,Ruble T E,et al.Unconventional shale-gas systems:The Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas assessment[J].AAPG Bulletin,2007,91(4):475-99.
[7]Bowker K A.Recent development of the Barnett shale play,Fort Worth Basin[J].West Texas Geological Society Bulletin,2003,42(6):4-11.
[8]Bowker K A.Barnett shale gas production,Fort Worth Basin:Issnes and discussion[J].AAPG Bulletin,2007,91(4):523-533.
[9]Curtis J B.Fractured shale-gas systems[J].AAPG Bulletin,2002,86(11):1921-1938.
[10]Chen Shangbin,Zhu Yanming,Wang Hongyan,et al.Characteristics and significance of mineral compositions of Lower Silurian Longmaxi Formation shale gas reservoir in the southern margin of Sichuan Basin[J].Acta Petrolei Sinica,2011,32(5):775-782.[陈尚斌,朱炎铭,王红岩,等.四川盆地南缘下志留统龙马溪组页岩气储层矿物成分特征及意义[J].石油学报,2011,32(5):775-782.]
[11]Zhang Naixian,Li Youqing,Zhao Huimin.The Research Methods of Clay Mineral[M].Beijing:Science Press,1990:1-10.[张乃娴,李幼琴,赵慧敏.黏土矿物研究方法[M].北京:科学出版社,1990:1-10.]
[12]Mooreand M,Reynolds R C.X-Ray Diffraction and the Identification and Analysis of Clay Minerals[M].Oxford,New York:Oxford University Press,1997.
[13]Fan Xueyun.X-ray qualitative analysis of several typical clay minerals[J].China Ceramic Industry,2000,7(4):37-41.[范学运.几种典型黏土矿物的X-射线定性分析[J].中国陶瓷工业,2000,7(4):37-41.]
[14]Zhao Xingyuan,He Dongbo.Clay mineral analysis and some problems of application in petroleum geology[J].Xinjiang Petroleum Geology,2008,29(6):756-757.[赵杏媛,何东博.黏土矿物分析及其在石油地质应用中的几个问题[J].新疆石油地质,2008,29(6):756-757.]
[15][JP2]Bi He,Jiang Zhenxue,Li Peng,et al.Shale reservoir characteristics and its influence on gas content of Wufeng-Longmaxi Formation in the southeastern Chongqing[J].Natural Gas Geoscience,2014,25(8):1275-1283.[毕赫,姜振学,李鹏,等.渝东南地区黔江凹陷五峰组—龙马溪组页岩储层特征及其对含气量的影响[J].天然气地球科学,2014,25(8):1275-1283.]
[16]Zhang Zhengshun,Hu Peiqing,Shen Juan,et al.Mineral compositions and organic matter occurrence modes of Lower Silurian Longmaxi Formation of Sichuan Basin[J].Journal of China Coal Society,2013,38(5):766-771.[张正顺,胡沛青,沈娟,等.四川盆地志留系龙马溪组页岩矿物组成与有机质赋存状态[J].煤炭学报,2013,38(5):766-771.]
[17]Petrography and Mineral Chemistry Department of Geology Department of Nanjing University.Phase Analysis of X-ray Powder[M].Beijing:Geological Publishing House,1980:176-179.[南京大学地质学系矿物岩石学教研室编.粉晶X-射线物相分析[M].北京:地质出版社,1980:176-179.]
[18]Zhang Qinghe,Wang Dianzhi,Yu Yongsheng,et al.Review on the phenomenon of cohesive sediment flocculation and flocculation mechanism and flocculation characteristics[J].Marine Science Bulletin,2001,20(6):80-90.[张庆河,王殿志,吴永胜,等.黏性泥沙絮凝现象研究评述-絮凝机理与絮团特征[J].海洋通报,2001,20(6):80-90.]
[19]Shen Juan.The Effect of the Mineral Compositions to Shale Gas of Longmaxi Formation at Sichuan Basin[D].Lanzhou:Lanzhou University,2014:9-10.[沈娟.四川盆地志留系龙马溪组页岩矿物组成对含气性的影响[D].兰州:兰州大学,2014:9-10.]
[20]Yang Yaxiu,Su Shaobing,Chen Zhengguo.X-ray quantitative experiments of clay mineral(Ⅰ)[J].Material Geology,1994,74(4):28-34.[杨雅秀,苏昭冰,陈正国.黏土矿物X-射线衍射法定量研究(上)[J].建材地质,1994,74(4):19-25.]
[21]Yang Yaxiu,Su Shaobing,Chen Zhengguo.X-ray quantitative experiments of clay mineral(Ⅱ)[J].Material Geology,1994,75(5):28-34.[杨雅秀,苏昭冰,陈正国.黏土矿物X-射线衍射法定量研究(下)[J].建材地质,1994,75(5):19-25.]
[22]Wang Lansheng,Zou Chunyan,Zheng Ping,et al.The geochemical evidence of shale gas in the Lower Paleozo in Sichuan Basin[J].Natural Gas Industry,2009,29(5):59-62.[王兰生,邹春艳,郑平,等.四川盆地下古生界存在页岩气的地球化学依据[J].天然气工业,2009,29(5):59-62.]
[23]Wang Naichuan,Zhao Jingzhou,Ding Wenlong,et al.Development characteristics of shale fracture in Longmaxi Formation in southeasten Sichuan[J].Natural Gas Geoscience,2015,26(4):760-770.[王艿川,赵靖舟,丁文龙,等.渝东南地区龙马溪组页岩裂缝发育特征[J].天然气地球科学,2015,26(4):760-770.]
[24]Metwally Y M,Chesnokov E M.Clay mineral transformation as a major source for authigenic quartz in thermo-mature gas shale[J].Applied Clay Science,2012,55(1):138-150.
[25]Thyberg B,Jahren J,Winje T,et al.Quartz cementation in Late Cretaceous mudstones,northern North Sea:Changes in rock properties due to dissolution of smectite and precipitation of micro-quartz crystals[J].Marine and Petroleum Geology,2010,27(8):1752-1764.
/
〈 |
|
〉 |