岩性油气藏 ›› 2018, Vol. 30 ›› Issue (5): 154–160.doi: 10.12108/yxyqc.20180519

• 石油工程 • 上一篇    下一篇

泡沫混排携砂解堵机理及影响因素

景紫岩1, 张佳2, 李国斌1, 竺彪3, 韩国庆2, 刘双双4   

  1. 1. 中国石油勘探开发研究院 西北分院, 兰州 730020;
    2. 中国石油大学(北京)石油与天然气学院, 北京 102249;
    3. 中海油田服务股份有限公司 生产事业部, 天津 300450;
    4. 斯伦贝谢(北京)技术公司, 北京 100084
  • 收稿日期:2018-03-20 修回日期:2018-05-19 出版日期:2018-09-14 发布日期:2018-09-14
  • 第一作者:景紫岩(1988-),男,硕士,工程师,主要从事开发地质及油藏工程等方面的研究工作。地址:(730020))甘肃省兰州市城关区雁儿湾路535号。Email:jingziyan@petrochina.com.cn。
  • 基金资助:
    国家重大科技专项“渤海油田泡沫混排增产工艺研究”（编号：2011ZX05014-004）资助

Mechanism and influencing factors of foam mixed flowback of sand production

JING Ziyan1, ZHANG Jia2, LI Guobin1, ZHU Biao3, HAN Guoqing2, LIU Shuangshuang4   

  1. 1. PetroChina Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China;
    2. College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
    3. Production Optimization, China Oilfield Services Limited., Tianjin 300450, China;
    4. Schlumberger(Beijing), Beijing 100084, China
  • Received:2018-03-20 Revised:2018-05-19 Online:2018-09-14 Published:2018-09-14

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摘要： 随着油田采出程度的提高，油藏近井地带堵塞问题愈加突出，为了消除堵塞、增强近井地带流通能力，提高采收率则成为高效开发的关键问题。根据泡沫混排技术的特点，在对其机理进行深入研究的基础上，设计泡沫混排携砂模拟实验，并对泡沫混排携砂影响因素进行分析。结果表明：气液比、裂缝、孔隙度、放喷压差是影响泡沫携砂能力及细粉砂排出的主要因素。该研究成果可为完善泡沫混排理论模型和实际施工提供很好的理论及技术指导，有助于提高油田单井采收率。

关键词: 泡沫混排, 机理研究, 模拟实验, 影响因素, 采收率

Abstract: With the increase of oil recovery,wellbore blockage in sandstone reservoir is becoming more and more serious. How to remove blockage and increase output has become a key issue of efficient development. From the angle of improving the permeability of oil layer to improve the production,many countries have generally adopted the methods of oil layer acidification and hydraulic fracturing to increase the oil recovery rate,but it also brings many negative problems,such as reservoir damage. Based on the mechanism of foam temporary support,state equation was used to deduce the change equation of formation pressure under the condition of foam compressibility,and study the influence of the main formation conditions and construction parameters under the condition of foam compressi-bility by combining the physical simulation experiment. The results show that gas liquid ratio, fracture,porosity and pressure drop are the main factors that affect the sand carrying capacity and the discharge of fine sand. This study can provide a theoretical and technical guidance for improving foam mixed flowback theoretical model and practical construction,and can help to improve single well recovery.

Key words: foam mixed flowback, mechanism research, simulation experiment, influencing factors, recovery ratio

中图分类号: 

  • TE358.1
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