新疆石油地质 ›› 2008, Vol. 29 ›› Issue (6): 782-784.

• 讨论与争鸣 • 上一篇    下一篇

酸敏评价标准中存在的几个问题

刘红现, 赵立强, 陈冀嵋, 刘平礼   

  1. 西南石油大学石油工程学院,成都610500
  • 收稿日期:2008-01-21 发布日期:2020-11-20
  • 作者简介:刘红现(1978-),男,河南南阳人,在读博士研究生,油气田开发,(Tel)13408568980(E-mail)masterlhx@126.com.

On Acid Sensitivity Standards: Defects Analysis

LIU Hong-xian, ZHAO Li-qiang, CHEN Ji-mei, LIU Ping-li   

  1. Institute of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2008-01-21 Published:2020-11-20

摘要: 安塞油田杏河长6 储集层中酸敏性矿物含量较高,敏感性分析为中等弱酸敏,长期以来一直禁忌酸化作业。在充分的室内研究基础上,实施有机酸酸化矿场试验并取得成功。证实了酸化技术在该储集层是可行的。从酸-岩反应机理和试验方法两方面分析了酸敏评价标准存在的问题,指出现行的酸敏评价试验结果不能作为储集层能否进行酸化处理的判定依据。

关键词: 标准, 砂岩, 酸化, 有机酸, 评价

Abstract: The reservoir of Chang-6 formation in Ansai oilfield has high content of acid sensitive minerals. The result of acid sensitivity evaluation shows that it belongs to medium-weak acid sensitivity. So for a long time acid treatment was considered to have no feasibility. On the basis of the abundant experimental studies, the organic acidizing field test is performed, obtaining a good result of stimulation. This proves that the acid treatment is feasible in this reservoir. This paper analyzes the defects in acid sensitivity standards from the rock/ acid reaction mechanism and experimental methods and points out existing results from acid sensitivity evaluations cannot be as the judged bases for performing acid treatment in this reservoir.

Key words: standard, sandstone, acidizing, organic acid, evaluation

中图分类号: