| 川口油田三叠系延长组长4＋5和长6储层成岩作用及孔隙演化研究 |
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| 引用本文： | 贺敏,王欣嫣. 川口油田三叠系延长组长4＋5和长6储层成岩作用及孔隙演化研究[J]. 延安大学学报(自然科学版), 2010, 29(1): 81-84 |
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| 作者姓名： | 贺敏 王欣嫣 |
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| 作者单位： | 延长油田股份有限公司,川口采油厂,陕西,延安,716000 |
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| 摘 要： | 根据研究区内多口油井的长4＋5、长6油层岩石样品的铸体薄片和扫描电镜观察结果,对川口油田三叠系延长组长4＋5和长6储层成岩作用及孔隙演化特征进行分析和研究。分析表明,川口油田三叠系延长组长4＋5和长6储层成岩作用以压实压溶作用、胶结作用和溶蚀作用为主;同时川口油田三叠系延长组长4＋5和长6储层砂岩已达到了晚成岩的早期,在早成岩与中成岩阶段原生粒间孔大量减少,晚成岩的早期产生次生孔隙。成岩作用使得储层内孔隙以小孔—细喉型和小孔—微细喉型孔隙为主,储层成为特低—超低孔隙度、特低—超低渗透率储层。
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| 关 键 词： | 三叠系延长组 储层 成岩作用 孔隙演化 孔隙结构 |
The Diagenesis and Pore Evolution of Reservoir in Chang4+5 and Chang6 Oil-Bearing of Triassic Yanchang Formation in Chuankou Oilfield |
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| HE MIN,WANG Xin-yan. The Diagenesis and Pore Evolution of Reservoir in Chang4+5 and Chang6 Oil-Bearing of Triassic Yanchang Formation in Chuankou Oilfield[J]. Journal of Yan'an University(Natural Science Edition), 2010, 29(1): 81-84 |
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| Authors: | HE MIN WANG Xin-yan |
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| Affiliation: | HE MIN,WANG Xin-yan (Chuankou Oil Production Plant,Yanchang Oilfield Limited Company,Yanan 716000,China) |
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| Abstract: | By observing the cast lamina and SEM of rock essay in Chang4+5 and Chang6 formation of many wells in interest region,the characteristics of diagenesis and pore evolution of reservoir in Chang4+5 and Chang6 oil-bearing of Yanchang formation in Chuankou oilfield were analyzed.It has be indicated by analyzing that the reservoirs in Chang4+5 and Chang6 oil-bearing of triassic Yanchang formation in Chuankou oilfield are mainly formed with compaction,press-solution,cementation and denudation.And it has also be in... |
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| Keywords: | triassic Yanchang formation reservoir diagenesis pore evolution pore structure |
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