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METHOD TO REDUCE THE WATER LOSS IN SLURRIES OR SOLUTIONS USED IN OIL FIELD AND GAS FIELD OPERATIONS
METHOD TO REDUCE THE WATER LOSS IN SLURRIES OR SOLUTIONS USED IN OIL FIELD AND GAS FIELD OPERATIONS
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机译:减少油田和气田作业中使用的泥浆或溶液中水损失的方法
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摘要
The present invention relates to a method to reduce the water loss in slurries and solutions used in oil field or gas field operations, for example for drilling, cementing and completion operations by adding a copolymer having a high molecular weight characterized by a K value of at least 300, said copolymer comprising structural units derived from monomers having sulfonic acid or derivative thereof, phosphonic acid or derivative thereof and acrylamide functionality.
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