新疆石油地质 ›› 2003, Vol. 24 ›› Issue (5): 479-481.

• 综述 • 上一篇    下一篇

沥青沉积与地层伤害

李闽, 李士伦, 杜志敏   

  1. 西南石油学院,四川 南充 637001
  • 收稿日期:2002-11-20 修回日期:2003-02-24 发布日期:2021-01-14
  • 作者简介:李闽(1962-),男,四川射洪人, 副教授,在读博士研究生,凝析气田开发。联系电话:0817-2642942

On Bitumen Sedimentation and Formation Damage

LI Ming, LI Shi-lun, DU Zhi-min   

  1. Southwest Petroleum Institute, Nanchong, Sichuan 637001, China
  • Received:2002-11-20 Revised:2003-02-24 Published:2021-01-14

摘要: 沥青从油藏原油中絮凝会造成地层和生产设备的堵塞,严重影响油田的正常生产。因此,十分有必要研究沥青沉积机理和由沥青沉积造成地层伤害的原因,为防止沥青沉积提供科学的依据。鉴于以往人们对沥青沉积机理的不同认识,提出了油田生产中沥青沉积机理和影响沥青沉积的各种因素。详尽地分析了沥青沉积在地层和近井地带产生地层伤害的原因,综述了有关模拟沥青的热力学模型,着重介绍了胶束模型和用状态方程模拟沥青沉积模型,并分析了它们在实际运用时的优缺点。

关键词: 沥青, 絮凝, 地层伤害, 堵塞, 润湿性

Abstract: The flocculating setting of bitumen from crude oil in reservoir may plug formation and production facilities, seriously affecting normal operation in an oilfield. Hence, it is necessary to study the sedimentary mechanism of bitumen and formation damage caused from it to find scientific basis of prevention from bitumen sedimentation. According to previous understandings of bitumen sedimentary mechanism,all mechanisms about it and all factors influenced are presented in this paper,including the rea-sons in detail why bitumen sediments easily in vicinity of wellbore and causes formation damages. Also, this paper reviews about thermodynamic models for bitumen simulation such as micellar model and state equation simulation approach for bitumen sedi-mentation, and these advantages and disadvantages in real application are analyzed.

Key words: bitumen, flocculation, formation damage, plug, wettability

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