美国Kelco Oil Field Group研制出了一种用生物聚合物Xanvis~(TM)增粘的水平井钻井、完井液体系。经现场实践证明,该体系具有悬浮能力强,清洁井眼能力强,地层损害性小,天然润滑能力极佳,能改善井下马达性能,减除水平井钻井故障等一系列优点,因而该文作者认为在水平井钻井、完井液中用生物聚合物作增粘剂是最佳的选择。 US Kelco Oil Field Group has developed a horizontal well drilling and completion fluid system that is viscosified with the biopolymer Xanvis ™. The field practice has proved that the system has a series of advantages such as strong suspending ability, strong cleaning borehole ability, small formation damage, excellent natural lubricating ability, improved underground motor performance, and reduced horizontal well drilling failure. Therefore, It is considered that biopolymer is the best choice for horizontal well drilling and completion fluid.