四川盆地龙岗气田三叠系飞仙关组储集层特征及成因机理*
, 钟大康 Characteristics and formation mechanism of the Triassic Feixianguan Formation reservoir in Longgang Gas Field,Sichuan Basin
Zhu Haihua1, 2 , Zhong Dakang1, 2
, Zhong Dakang 
四川盆地龙岗气田三叠系飞仙关组储集层特征及成因机理* |
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祝海华, 钟大康 |
Characteristics and formation mechanism of the Triassic Feixianguan Formation reservoir in Longgang Gas Field,Sichuan Basin |
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Zhu Haihua
, Zhong Dakang |
| 龙岗气田三叠系飞仙关组白云化作用及孔隙发育 a—亮晶鲕粒灰岩,早期白云化作用与选择性溶蚀作用伴生,发育程度与鲕粒核心和砂屑成分有关,白云化程度越高,伴生的溶蚀作用越发育,粒内溶孔越多,单偏光,龙岗22井,5510.0 m;b—亮晶鲕粒灰岩,早期白云化作用,单偏光,龙岗21井,5642.9 m;c—中细晶白云岩,埋藏白云化作用形成粗粉晶、细晶,晶形完整,白云石晶间溶孔和白云石晶间孔发育,单偏光,龙岗26井,5564.0 m;d—具鲕粒幻影晶粒 白云岩,埋藏白云化作用,鲕粒间发育孔径较大的粒间溶孔,鲕粒内发育少量细小的白云石晶间孔,单偏光,龙岗26井,5626.0 m |
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