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鄂南地区旬宜区块三叠系延长组剩余压力与油气成藏关系研究

赵莹彬, 李风勋, 曹建康, 顾超, 邢丽娟

赵莹彬, 李风勋, 曹建康, 等. 鄂南地区旬宜区块三叠系延长组剩余压力与油气成藏关系研究[J]. 西北地质, 2021, 54(2): 217-226. DOI: 10.19751/j.cnki.61-1149/p.2021.02.019
引用本文: 赵莹彬, 李风勋, 曹建康, 等. 鄂南地区旬宜区块三叠系延长组剩余压力与油气成藏关系研究[J]. 西北地质, 2021, 54(2): 217-226. DOI: 10.19751/j.cnki.61-1149/p.2021.02.019
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ZHAO Yingbin, LI Fengxun, CAO Jiankang, et al. Research on the Relationship between Surplus Pressure and Hydrocarbon Accumulation of Yanchang Formation in Xunyi Block, South of Ordos Basin[J]. Northwestern Geology, 2021, 54(2): 217-226. DOI: 10.19751/j.cnki.61-1149/p.2021.02.019
Citation: ZHAO Yingbin, LI Fengxun, CAO Jiankang, et al. Research on the Relationship between Surplus Pressure and Hydrocarbon Accumulation of Yanchang Formation in Xunyi Block, South of Ordos Basin[J]. Northwestern Geology, 2021, 54(2): 217-226. DOI: 10.19751/j.cnki.61-1149/p.2021.02.019
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鄂南地区旬宜区块三叠系延长组剩余压力与油气成藏关系研究

  • 1. 中石化河南油田分公司勘探开发研究院, 河南 郑州 450000;

  • 2. 中国石化石油勘探开发研究院无锡石油地质研究所, 江苏 无锡 214126

基金项目: 

中国石化科技部项目“旬邑-宜君区块延长组油气富集规律及增储领域研究”（P18053-4），中国石化油田事业部“旬邑-宜君区块勘探潜力分析及有利目标优选”（20182A12216）。

详细信息
    作者简介:

    赵莹彬(1986-),男,河北人,中国地质大学(武汉)石油地质硕士研究生,工程师,主要从事油气勘探综合研究工作。E-mail:znsym@163.com。

  • 中图分类号: TE122.1

Research on the Relationship between Surplus Pressure and Hydrocarbon Accumulation of Yanchang Formation in Xunyi Block, South of Ordos Basin

  • 1. Research Institute of Exploration and Development, Henan Oilfield Company, SINOPEC, Zhengzhou 450000, Henan, China;

  • 2. Wuxi Research Institute of Petroleum Geology, Research Institute of Petroleum Exploration and Production, SINOPEC, Wuxi 214126, Jiangsu, China

摘要

    摘要
  • 摘要: 旬宜区块延长组主力产油层是长3段，在长6段和长7段仅个别井点钻遇油藏，无法明确其油气富集规律。因此，在总结前人研究成果的基础上，运用成藏动力学、压力封存箱等原理，结合岩心化验分析资料，分析延长组剩余压力发育特征，探讨其与油气成藏关系。研究表明，纵向上，压力结构决定了油藏的发育层位，即长7油藏在受控于突变压力结构在压力封存箱内油气聚集，长3和长6油藏在渐变压力结构作用下在上部渐变带聚集成藏；横向上，剩余压力控制了油气藏平面展布，长6和长7油藏均位于剩余压力较大的区域，充注动力足，有利于油气成藏。该研究对旬宜区块延长组致密油的下步勘探部署具有指导意义。
    Abstract: Chang 3 member is the main oil producing layerin Yanchang formation of Xunyi Block.On the basis of the previous research,this paper analyzes the development characteristics of the surplus pressure and the relationship between surplus pressure and hydrocarbon accumulationusing the principles of reservoir forming dynamics and pressure seal box, combined with the core test and the analysis data.The results show that:vertically, the pressure structure decides the development horizon of the reservoir, i.e. Chang 7 reservoir accumulates oil and gas in the pressure storage tank under a sudden pressure structure; Chang 3 and Chang 6 reservoir accumulates in the upper gradual change zone under a gradual changing pressure structure.Horizontally,the surplus pressure controls the plane distribution of oil and gas reservoirs.Both Chang 6 and Chang 7 reservoirs are located in the area with high residual pressure and sufficient charging power, which is conducive to hydrocarbon accumulation. The research is of guiding significance for the future exploration and deployment of tight oil in Yanchang formation of Xunyi block.
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出版历程
  • 收稿日期:  2020-01-13
  • 修回日期:  2020-11-01
  • 网络出版日期:  2022-07-28
  • 发布日期:  2021-06-04

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