It is shown that the delayed crosslinking time of fracturing fluid can be adjusted by changing the dosage of DCL-KB and pH value.

• 对DCL-KB的耐温性、剪切恢复性、破胶性、携砂等性能进行了评价。 结果表明,DCL_KB交联剂耐温耐剪切性能好,调节加量和胶液的pH值,可改变延迟交联时间。