求翻译：为了实现酸交往联,国外开发了羧甲基羟丙基胍胶。羧甲基羟丙基胍胶压裂液曾成功地对东得克萨斯的Cotton Valley地层进行了改造,但其价格昂贵。国内酸交往联压裂液主要采用羟丙基胍胶作为增稠剂[ 4 ] ,但其在酸性环境下易水解,粘度很快地降低,影响压裂液性能。缔合物压裂液[ 5 ]体系是由廊坊分院开发的新型压裂液体系。该体系在长庆神木- 双山两口气探井应用时均发生了不同程度的砂堵,现场测试压裂液的交联性能较差,而且苏东气藏埋深又远高于这两口试验井,这种体系目前不具备应用条件。因此必须合成低成本、低残渣、酸性条件下交联、破胶性能优良的增稠剂。是什么意思？

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In order to achieve acid to the development of American foreign and distant methyl isopropyl (rubbing) and glue. unsparing American methyl isopropyl (rubbing) and plastic fracturing fluids have been successful in the East Texas Cotton Valley Stratum to the transformation, but its expensive. Domestic

In order to realize acidic crossing linking, overseas has developed the ethyloic hydroxy propyl guar gel.The ethyloic%2

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