两性离子聚合物泥浆在长庆油田的应用

The Application of Amphoteric Polymer Drilling Fluid in Changqing Oil Field

为提高长庆油田陕甘宁盆地的钻井速度,采用了两性离子聚合物泥浆。对该体系的室内试验和安塞、樊家川、靖边等区块的现场应用情况进行了介绍。287口井的现场应用效果证明:两性离子聚合物泥浆具有较强的抑制性、密度低、水眼粘度低及高温下性能稳定等优点,而且能明显地提高机械钻速,进而较大幅度地降低钻井成本。

The application of Amphoteric polymer mud in Shanganning basin in presented . Tests indicate that this drilling fluid has the advantage of higher inhibity , lower density , lower high shear viscosity , and good temperature stability .