泌阳凹陷深凹区核三上段页岩层脆性矿物预测及分布

黄新; 胡守志; 李水福; 吕倩

doi:10.11781/sysydz201601048

泌阳凹陷深凹区核三上段页岩层脆性矿物预测及分布

doi: 10.11781/sysydz201601048

中国地质大学(武汉)构造与油气资源教育部重点实验室, 武汉 430074

基金项目: 国家自然科学基金(41572109,41273052)、教育部科技项目留学回国人员科研启动基金(2014022019)和中国石化河南油田分公司横向合作项目"泌阳凹陷古近系核桃园组页岩油形成条件及分布规律"联合资助。

详细信息

作者简介:
黄新(1991-),男,硕士生,油气地球化学专业。E-mail:1292939882@qq.com。

通讯作者:
胡守志(1976-),女,副教授,从事油气地质及油气地球化学研究和教学。E-mail:hushzh@cug.edu.cn。

中图分类号: TE132.8
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出版历程
- 收稿日期: 2015-06-30
- 修回日期: 2015-12-08
- 刊出日期: 2016-01-28

Forecast and distribution of brittle minerals in shales from the upper section of the third member of Hetaoyuan Formation in the deep sag area of the Biyang Depression

Key Laboratory of Tectonics & Petroleum Resources of the Ministry of Education, China University of Geosciences, Wuhan, Hubei 430074, China

摘要

摘要: 利用多测井参数回归法和多矿物模型法,结合实测矿物含量数据,对泌阳凹陷深凹区核三上段页岩层矿物进行预测与分析。结果表明,该页岩层矿物含量变化较大,主要以石英和黏土矿物为主(其平均含量分别为24.2%和23.4%);斜长石、方解石、白云石、钾长石、黄铁矿含量依次降低,黄铁矿平均含量仅为3.1%;沸石、石膏等其他矿物只在少数样品中可见。通过实测数据校验,预测结果相关性好,其中多矿物模型预测精度更高,其相关性最高可达0.8。泌页HF1井矿物剖面分布以及核三上段页岩层脆性矿物平面分布显示,多矿物模型预测的结果能够较好地反映该区矿物分布规律及其变化趋势,其结果对页岩油甜点预测、储层矿物评价和页岩油开发都具有重要参考价值。
- 脆性矿物 /
- 多矿物模型 /
- 页岩层 /
- 核三上段 /
- 泌阳凹陷 /
- 南襄盆地
Abstract: In this paper, we briefly discuss two types of logging prediction methods, namely multi-parameter regression and multi-mineral model. We determined the mineral composition of shales from the upper section of the third member of Hetaoyuan Formation in the deep sag area of the Biyang Depression using these methods and compared this with measured data. The results showed that the major components are quartz and clay minerals, with an average of 24.2% and 23.4%, respectively. The contents of plagioclase, calcite, dolomite, potassium feldspar and pyrite reduce in a descending order. The content of pyrite is about 3.1% on average. Zeolite, gypsum and other minerals are visible only in a few samples. Measured data validation proved that the predictions by logging using these two models are accurate, especially the multi-mineral model, which has an accordance rate of 0.8. The mineral composition section in well BYHF1 and the brittle mineral content in shales from the upper section of the third member of Hetaoyuan Formation showed that the multi-mineral model can predict the distribution rules and trend of minerals better. It is significant for shale oil sweet spot prediction, reservoir mineral evaluation and shale oil development.
- brittle minerals /
- multi-mineral model /
- shale /
- upper section of the third member of Hetaoyuan Formation /
- Biyang Depression /
- Nanxiang Basin

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