苏北盆地金湖凹陷阜二段砂岩物性影响因素分析

马英俊

doi:10.11781/sysydz201704477

苏北盆地金湖凹陷阜二段砂岩物性影响因素分析

doi: 10.11781/sysydz201704477

马英俊

中国石化江苏油田分公司勘探开发研究院, 江苏扬州 225012

基金项目: 中石化重大科技项目“苏北盆地油气聚集规律及精细评价关键技术”（ZDP17010）资助。

详细信息

作者简介:
马英俊(1964—),女,工程师,从事油气地质勘探综合研究。E-mail:mayj.jsyt@sinopen.com。

中图分类号: TE122.23
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- 被引次数: 0
出版历程
- 收稿日期: 2017-02-10
- 修回日期: 2017-06-05
- 刊出日期: 2017-07-28

Influencing factors of sandstone properties of the second member of Funing Formation in the Jinhu Sag, Subei Basin

Ma Yingjun

SINOPEC Jiangsu Oilfield Branch Company, Yangzhou, Jiangsu 225012, China

摘要

摘要: 利用岩石薄片、铸体薄片、孔渗分析等实验手段，对苏北盆地金湖凹陷阜二段砂岩储层的矿物岩石特征、储层物性特征、孔隙结构特征以及储层物性的主要影响因素进行了相关分析。研究表明，阜二段储层岩石颗粒总体偏细，不同地区岩石成分成熟度均值差别小、范围值都较宽；西部斜坡带储层物性相对较好，其他地区以低孔、低渗—特低渗储层为主；压实和碳酸盐胶结是导致储层物性变差的主要原因；溶蚀作用和油气充注是抑制物性变差、改善储集性能的重要因素。西部斜坡带等地区是储层物性相对较好的有利地区。
- 砂岩物性 /
- 沉积微相 /
- 成岩作用 /
- 油气充注 /
- 阜二段 /
- 金湖凹陷 /
- 苏北盆地
Abstract: The lithologic characteristics of minerals, reservoir physical properties and pore structure of sandstones in the second member of Funing Formation in the Jinhu Sag of Subei Basin were studied based on petrographic thin sections, casting thin sections, porosity and permeability, and the influencing factors for reservoir physical properties were discussed. The sandstones in the second member of Funing Formation are generally fine grained. The average maturity of rock composition is similar among different regions, and range widely. The sandstones on the western slope of Jinhu Sag have better physical properties while those in the other areas are featured by low porosity and low to extra low permeability. Compaction and carbonate cementation are the main reasons leading to poor reservoir physical properties. Dissolution and hydrocarbon filling are important factors to restrain diagenesis and improve reservoir characteristics. The western slope has relatively better porosity and permeability and is a favorable target for hydrocarbon pools.
- sandstone physical property /
- sedimentary microfacies /
- diagenesis /
- oil and gas filling /
- second member of Funing Formation /
- Jinhu Sag /
- Subei Basin

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