CAJ | 학술논문

为得出一套适合陆相页岩气储层岩石学研究方法，加快页岩气研究进展，解决页岩气测试技术、评价方法及参考标准的不统一性，采用野外岩心描述、薄片分析、扫描电镜分析及X-衍射相结合的测试手段，参考DB61/577-2013《页岩气井岩样分析测试方法》标准，对鄂尔多斯盆地东南部下寺湾地区长7、长9段页岩岩石学进行分析测试，测试结果表明，下寺湾地区长7、长9段页岩气储层岩性复杂，黏土矿物含量高，石英、碳酸盐等脆性矿物含量少，常规测试方法难以进行精细研究，为此，增加了对测试样品的预处理以及设备的选用，形成一套陆相岩石学研究体系：岩心描述法，薄片鉴定法，扫描电子显微镜与能谱结合法，X射线衍射分析法。
위득출일투괄합륙상혈암기저층암석학연구방법，가쾌혈암기연구진전，해결혈암기측시기술、평개방법급삼고표준적불통일성，채용야외암심묘술、박편분석、소묘전경분석급X-연사상결합적측시수단，삼고DB61/577-2013《혈암기정암양분석측시방법》표준，대악이다사분지동남부하사만지구장7、장9단혈암암석학진행분석측시，측시결과표명，하사만지구장7、장9단혈암기저층암성복잡，점토광물함량고，석영、탄산염등취성광물함량소，상규측시방법난이진행정세연구，위차，증가료대측시양품적예처리이급설비적선용，형성일투륙상암석학연구체계：암심묘술법，박편감정법，소묘전자현미경여능보결합법，X사선연사분석법。
To get a set of suitable petrological research methods for terrestrial shale gas reservoir, quicken the pace of shale gas research and solve the dispariy btweenesting technique,ppraisal method ad reference standard, this paper analyzed the petrology of shale gas in the sections Chang 7 and Chang 9 in the Xiashiwan area, southeast of the Erdos basin using field drill core description, thin section analysis, SEM analysis and X-ray diffraction against the standard DB61/577-2013The Analysis and Test Methods of the Sample in Shale Gas Well. The testing results indicated that the shale gas reservoir is complex in lithology, high in content of clay minerals, low in brittle minerals of quartz and carbonate, which are hard to be studied in detail by routine testing method. So, the tested samples are pretreated and more equipment used, forming a research system for terrestrial rocks as follows: drill core description, thin section identification, SEM and energy spectrum, and X-ray diffraction.