利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN103881691A 环保型压裂液及其返排液的配制和循环利用方法 无效 - 驳回

环保型压裂液及其返排液的配制和循环利用方法
摘要：
环保型压裂液及其返排液的配制和循环利用方法，先将清水99.82～61.2份、植物胶增稠剂0.15～0.8份、原油破乳剂0～1.0份、助排剂0～2.0份、起泡剂0～2.0份、杀菌剂0～1.0份、粘土稳定剂0～2.0份、pH调节剂0～10.0份、硼酸酯0.03～20.0份配制成清水基压裂液进行压裂施工；将压裂施工后的返排液中的原油和固相颗粒进行分离而获得返排液清液。将返排液清液20～99.98份、清水0～36.2份、钙镁屏蔽剂0.01～5.0份、植物胶增稠剂0～0.8份、原油破乳剂0～1.0份、助排剂0～2.0份、起泡剂0～2.0份、杀菌剂0～1.0份、粘土稳定剂0～2.0份、pH调节剂0.01～10.0份、硼酸酯0～20.0份配制成返排液基压裂液再次进行压裂施工；压裂后的返排液仍可以按返排液基压裂液的配比继续进行循环使用。
摘要（英）：

The invention relates to a method for preparing and recycling environmental-friendly fracturing liquid and flowback fluid thereof. According to the method, clean water based fracturing liquid is firstly prepared from the following ingredients in parts by weight: 61.2-99.82 parts of clean water, 0.15-0.8 part of vegetable gum thickener, 0-1.0 part of crude oil demulsifier, 0-2.0 parts of discharge aiding agent, 0-2.0 parts of foamer, 0-1.0 part of bactericide, 0-2.0 parts of clay stabilizer, 0-10.0 parts of pH regulator and 0.03-20.0 parts of borate, and fracturing construction is carried out; crude oil and solid particles in flowback fluid, obtained after fracturing construction, are separated, so as to obtain flowback fluid supernatant; flowback fluid based fracturing liquid is prepared from the following ingredients in parts by weight: 20-99.98 parts of flowback fluid supernatant, 0-36.2 parts of clean water, 0.01-5.0 parts of calcium/magnesium shielding agent, 0-0.8 part of vegetable gum thickener, 0-1.0 part of crude oil demulsifier, 0-2.0 parts of discharge aiding agent, 0-2.0 parts of foamer, 0-1.0 part of bactericide, 0-2.0 parts of clay stabilizer, 0.01-10.0 parts of pH regulator and 0-20.0 parts of borate, and fracturing construction is carried out again; flowback fluid, obtained after fracturing, can still be continuously recycled according to the proportioning ratio of the flowback fluid based fracturing liquid.

0/0