利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN106281290A 一种稠油蒸汽驱耐高温堵剂 无效 - 撤回

一种稠油蒸汽驱耐高温堵剂
摘要：
本发明涉及油田采油工程技术领域，尤其属于一种稠油蒸汽驱耐高温堵剂，本发明是针对热采开发过程中汽窜对生产造成严重影响的问题而研制的。本发明按重量百分比由下列成分组成：66%甲醛溶液、32.2%尿素、0.3%聚乙烯醇、0.5%苯酚、0.1% pH值调节剂、0.05%-0.15%固化剂、0.05%-0.15%延缓剂，余量为水。本发明具有耐高温、封堵强度大、有效期长、易注入、污染小等优点。
摘要（英）：

The invention relates to the technical field of oilfield oil production engineering, and in particular belongs to a thickened oil steam flooding high-temperature-resistant plugging agent. The thickened oil steam flooding high-temperature-resistant plugging agent is developed to solve the problem of serious influence on production caused by steam channeling in a thermal recovery and development process. The thickened oil steam flooding high-temperature-resistant plugging agent consists of the following components in percentage by weight: 66 percent of a formaldehyde solution, 32.2 percent of urea, 0.3 percent of polyvinyl alcohol, 0.5 percent of phenol, 0.1 percent of a pH value regulator, 0.05 to 0.15 percent of a curing agent, 0.05 to 0.15 percent of a retardant and the balance water. The thickened oil steam flooding high-temperature-resistant plugging agent has the advantages of high-temperature resistance, high plugging strength, long shelf life, low pollution and the like, and is easy to inject.

0/0