中高温降失水剂水泥浆体系的优化与应用

摘要

对油井用合成聚合物降失水剂现状及发展趋势进行了介绍。通过实验观察，G310改良后水泥浆体系在中高温条件下有非常好的综合性能，能够满足中高温条件下固井施工要求，降失水效果非常明显且按比例增强，加量易于控制，可广泛用于温度在80℃-140℃范围的固井施工中。%The development trend and current situation of fluid loss agent from synthetic polymers was introduced .Through the observation of test,G310 could improve the combination properties of cementing system which is adapt to the requirement of well cementation in midium-high temperatures.The effect of lowering water loss with increasing of proportion was obvious and easy to be controlled.It could be applied broadly in 80℃-140℃.