利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN101165312A 一种油井长效防蜡方法 有权

一种油井长效防蜡方法
摘要：
一种油井长效防蜡方法，涉及一种利用固体长效防蜡棒达到长效防蜡作用的防蜡方法。一种油井长效防蜡方法，利用油管具有的或者清蜡解堵完毕后具有的直到井底套管口袋的通道，向油井井底套管口袋投入固体长效防蜡棒，达到长效防蜡的目的，其中，固体长效防蜡棒由PE和EVA(EVA是乙烯－醋酸乙烯酯共聚物)混合而成，PE和EVA重量混合比例为4∶7～8∶2，PE的数均分子量为1.5×104～2×104，支化度为3.3～4.0，防蜡方法效率高、速度快、有效期长、施工简单、成本低。
摘要（英）：

The long acting oil well paraffin controlling method with solid long-acting paraffin controlling rod is that solid long-acting paraffin controlling rod is thrown to casing pocket in the bottom of oil well through the oil pipe passage so as to reach long-acting paraffin controlling aim. The solid long-acting paraffin controlling rod is made with the mixture PE and EVA copolymer in the weight ratio of 4/7-8/2, and the PE has number-average molecular weight of 1.5x10<4>-2x10<4> and branching degree of 3.3-4.0. The oil well paraffin controlling method has high efficiency, high speed, long effective period, simple construction and low cost.

公开/授权文献
0/0