成都理工大学学报(自然科学版)
成都理工大學學報(自然科學版)
성도리공대학학보(자연과학판)
JOURNAL OF CHENGDU UNIVERSITY OF TECHNOLOGY(SCIENCE & TECHNOLOGY EDITION)
2015年
1期
90-97
,共8页
刘伟伟%田景春%林小兵%史建南%杨辰雨%彭顺风
劉偉偉%田景春%林小兵%史建南%楊辰雨%彭順風
류위위%전경춘%림소병%사건남%양신우%팽순풍
修武盆地%下寒武统%黑色页岩%矿物成分%油气地质意义
脩武盆地%下寒武統%黑色頁巖%礦物成分%油氣地質意義
수무분지%하한무통%흑색혈암%광물성분%유기지질의의
Xiuwu basin%Lower Cambrian%black shale%mineral component%petroleum%geologic significance
以江西修武盆地下寒武统王音铺组、观音堂组黑色页岩为研究对象,通过对野外剖面样品和钻井取心样品定性和定量分析,研究修武盆地下寒武统页岩气储层矿物成分特征,结果表明,王音铺组、观音堂组黑色页岩矿物成分以黏土矿物和石英为主,石英的平均质量分数为58.63%,黏土矿物平均为25.4%。其次为方解石,平均为51.46%,另外还含有较高的长石和黄铁矿,平均质量分数分别为2.5%和4.68%。其余矿物如方解石、白云石、(硬)石膏等含量较少,平均质量分数<5%。这种矿物成分组成与 Barnett 页岩及龙马溪组页岩既有相似性,又有差异性。修武盆地下寒武统页岩矿物组分所反映的沉积环境、有机质演化及黑色页岩储集意义表明,该套页岩石英的质量分数>50%的泥(页)岩厚度接近50 m,是理想的页岩气勘探开发层位。
以江西脩武盆地下寒武統王音鋪組、觀音堂組黑色頁巖為研究對象,通過對野外剖麵樣品和鑽井取心樣品定性和定量分析,研究脩武盆地下寒武統頁巖氣儲層礦物成分特徵,結果錶明,王音鋪組、觀音堂組黑色頁巖礦物成分以黏土礦物和石英為主,石英的平均質量分數為58.63%,黏土礦物平均為25.4%。其次為方解石,平均為51.46%,另外還含有較高的長石和黃鐵礦,平均質量分數分彆為2.5%和4.68%。其餘礦物如方解石、白雲石、(硬)石膏等含量較少,平均質量分數<5%。這種礦物成分組成與 Barnett 頁巖及龍馬溪組頁巖既有相似性,又有差異性。脩武盆地下寒武統頁巖礦物組分所反映的沉積環境、有機質縯化及黑色頁巖儲集意義錶明,該套頁巖石英的質量分數>50%的泥(頁)巖厚度接近50 m,是理想的頁巖氣勘探開髮層位。
이강서수무분지하한무통왕음포조、관음당조흑색혈암위연구대상,통과대야외부면양품화찬정취심양품정성화정량분석,연구수무분지하한무통혈암기저층광물성분특정,결과표명,왕음포조、관음당조흑색혈암광물성분이점토광물화석영위주,석영적평균질량분수위58.63%,점토광물평균위25.4%。기차위방해석,평균위51.46%,령외환함유교고적장석화황철광,평균질량분수분별위2.5%화4.68%。기여광물여방해석、백운석、(경)석고등함량교소,평균질량분수<5%。저충광물성분조성여 Barnett 혈암급룡마계조혈암기유상사성,우유차이성。수무분지하한무통혈암광물조분소반영적침적배경、유궤질연화급흑색혈암저집의의표명,해투혈암석영적질량분수>50%적니(혈)암후도접근50 m,시이상적혈암기감탐개발층위。
Based on the qualitative and quantitative analyses of the shale samples from the field outcrops and well cores,this paper studies the characteristics and significance of mineral compositions in the Lower Cambrian black shale gas reservoir from the Xiuwu basin,Jiangxi,China.The results show that the major components of the Lower Cambrian Wangyinpu Formation and Guanyintang Formation black shale are clay minerals and quartz,with an average content of 25.4% and 58.63%, respectively,and the minor components are feldspar and pyrite,with an average content of 2 .5% and 4.68%,respectively.In addition,the average content of the other minerals such as calcite,dolomite, gypsum,and so on is less than 5%.The mineral components characteristics of the Lower Cambrian black shale from Xiuwu basin are both similar and difference from the Barnett shale and the Longmaxi Formation shale. Furthermore, the paper discusses the sedimentary environments, the organic material evolution and the shale reservoirs according to the characteristics of the mineral components in the Lower Cambrian shale from the Xiuwu basin.The result shows that the mud shale thickness of this set of shale with quartz component >50%is almost 50 m which is an ideal horizon for exploration and exploitation.