国外减阻水压裂液技术及其研究进展

Technology of Fracturing Fluids with Friction-reducing Water Overseas and Its Research Progress

在系统调研国外减阻水压裂液相关文献的基础上,阐述了国外减阻水压裂液技术的发展历程,并从新型减阻水压裂液体系、添加剂之间的相互作用、破坏剂的优选、无害化减阻剂的研究、抗盐减阻剂的研究以及支撑剂传输系统的改进等方面介绍了其最新研究进展。得出减阻水压裂液的优点是低伤害、低成本、产生的裂缝网络复杂度高体积大、易于循环利用,缺点是对支撑剂的输送能力较差以及对水的需求量较大。同时对如何弥补减阻水压裂液的缺点提出了合理建议。对中国致密页岩气开采中减阻水压裂液的应用及研究具有一定的参考价值。

Based on the investigation and study of documents on fracturing fluids with friction-reducing water overseas,the paper presents the development history of fracturing fluids with friction-reducing water and progress in such aspects as new system of fracturing fluids with friction-reducing water,mutual function of additives,the optimal selection of damaging agent,the study on harmless friction-reducing agent,the study on salt-stable friction-reducing agent,the improvement of proppant transportation,etc.overseas.It is concluded that fracturing fluids with friction-reducing water have advantages of low damage,low cost,large complexity of fracture network generated,large volume of fractures generated,apt to circulation and have disadvantages of poor capacity of proppant transportation and the requirement of large volume of water.Rational proposals about how to overcome the disadvantages of fracturing fluids with friction-reducing water are raised.The study results are significant to the application and study of fracturing fluids with friction-reducing water in the development of shale bed gas in China.