| 安塞油田南部侏罗系延8～延9储层特征及控制因素研究 |
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| 引用本文： | 余成林,李相明,彭寿昌,王昌勇,王潜忠,余忠祥.安塞油田南部侏罗系延8～延9储层特征及控制因素研究[J].石油地质与工程,2005,19(5):1-3. |
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| 作者姓名： | 余成林 李相明 彭寿昌 王昌勇 王潜忠 余忠祥 |
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| 作者单位： | 长江大学,湖北,荆州,434023;长庆油田分公司采油一厂;江汉油田分公司 |
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| 摘 要： | 安塞油田南部侏罗系延安组延8～延9储层是一套以长石砂岩、岩屑长石砂岩、岩屑石英砂岩和长石石英砂岩为主的陆源碎屑沉积,为早成岩期的产物,成分成熟度和结构成熟度均较低,属三角洲前缘亚相范畴。孔隙类型包括原生粒间孔和次生孔隙,后者以粒间溶孔为主。通过成岩分析,指出沉积物源及古地理环境控制着储层性质,成岩作用使储层物性进一步变差,而溶解作用改善了储层性能。
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| 关 键 词： | 侏罗系 延安组 储层特征 控制因素 安塞油田南部 |
| 文章编号： | 1006-4095(2005)05-0001-03 |
| 修稿时间： | 2005年3月30日 |
A study on reservoir characteristics and control factors of 8th and 9th members of Jurassic Yan'an Fm in southern Ansai oilfield |
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| Yu Chenglin et al.A study on reservoir characteristics and control factors of 8th and 9th members of Jurassic Yan'an Fm in southern Ansai oilfield[J].Petroleum Geology and Engineering,2005,19(5):1-3. |
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| Authors: | Yu Chenglin |
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| Abstract: | Reservoirs in the 8th and 9th members of Jurassic Yan'an Fm in southern Ansai oilfield are terrigenous clastic sediments composed mainly of arkose, lithic arkose, lithic quartzose sandstone and feldspar quartzose sandstone of delta front facies. They have been deposited in eogenetic stage and both their compositional maturity and textural maturity are low. The pore types include primary intergranular pores and secondary pores, with the latter being mainly of intergranular dissolved pores. Diagenesis analysis shows that the sources of sediments and palaeo-grographic environment have controlled reservoir qualities, which were improved by dissolution but worsened by diagenesis. |
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| Keywords: | Jurassic Yan'an Formation reservoir characteristics control factors southern Ansai oilfield |
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