The Diagenetic Controlling-factors of Reservior Property and Diageneses of Reservoir of Lower-Tertiary in Lunpola Basin,Tibet
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摘要: 区内下第三系储层经历了压实、胶结、溶蚀、破裂等一系列成岩作用,成岩作用十分复杂,成岩现象也十分丰富,特征十分明显。储层储集性能的成岩控因研究表明,压实作用、胶结作用是使储层物性变差、孔隙度降低的两个重要成岩控因;而溶蚀作用,特别是深埋溶蚀作用是改善储层储集性能、使储层物性变好的成岩控因之一。Abstract: Lower-Tertiry reservior in Lunpola Basin underwent a series of dianenesis,such as compaction,cementation,solution,cracking et al.The diagenesis was very complex,the diagenetic phenomenon is very rich and the diagenetic characters is very obvious.The diagenesis contrllingfactors study of reservior property show that compaction, cementation are two important diagenetic-faxtors which make physical property bad and porosity down in reservior.Solution, particularly solution in deep burial is one of important diagenetic comtrolling-factors which improved reservior property and make physical property well in reservior.
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Key words:
- diagenesis /
- diagenetic controlling-factor /
- Lunpola Basin
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[1] 1 马立祥,张二华,鞠俊成等.西藏伦坡拉盆地下第三系沉积体系域基本特征.地球科学—中国地质大学报,1996,22(2):174~178
2 黄宗和.藏北伦坡拉盆地下第三系储层展布研究,西藏地质,1994,12(2):161~168
3 郑浚茂,庞敏.碎屑储集岩的成岩作用研究.武汉:中国地质大学出版社,1989.78~82 -

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