| 唐钏,唐洪明,王俊杰,张连进,兰雪梅.川西北地区栖霞组气藏的储集类型及不同储层对产能的贡献率[J].地质找矿论丛,2020,35(1):64-72 |
| 川西北地区栖霞组气藏的储集类型及不同储层对产能的贡献率 |
| Reservoir types of gas reservoirs and contribution rates of different reservoirs to productivity—a case study of Qixia Formation in northwest Sichuan |
| 投稿时间：2019-07-01 |
| DOI：10.6053/j.issn.1001-1412.2020.01.008 |
| 中文关键词: 双鱼石构造单元 栖霞组 储集空间 储集类型 产能贡献率 川西北地区 |
| 英文关键词:pisces rock structure unit Qixia Formation reservoir space reservoir type productivity contribution rate northwest Sichuan |
| 基金项目: |
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| 摘要点击次数: 1066 |
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| 中文摘要: |
| 川西北地区双鱼石构造单元栖霞组发现了良好的油气显示。通过岩芯观察、铸体薄片、物性测试、压汞实验以及CT扫描等手段对储层岩性、孔喉结构、储层分类评价、产能贡献等研究表明：双鱼石构造单元栖霞组储层岩性以白云岩为主，储层空间以孔、洞为主，储层类型以裂缝-孔洞型、孔洞型储层占优；裂缝-溶孔型储层、裂缝-孔洞型储层的产能贡献率>90%。 |
| 英文摘要: |
| In the Qixia Formation of pisces rock structure in northwest Sichuan occur good oil and gas shows. By means of core observation, casting thin section, physical property test, mercury injection experiment and CT scanning, the reservoir lithology, pore throat structure, reservoir classification and evaluation, productivity contribution and so on are studied. It is clear that the reservoir lithology is dominated by dolomite, the gas accumulative space of reservoir by pore and cave. Fracture-hole type and hole type reservoirs are the dominant reservoir types, and the ratios of different reservoir spaces for different types of reservoirs are quantitatively compared. Fractures greatly improve the permeability of reservoirs. The productivity contribution rate of fractured-dissolved porous reservoirs and fractured-porous reservoirs is more than 90%. |
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