非常规油气开采压裂用减阻剂研究进展

Progress of Drag Reducers Used in Slickwater Hydrofracturing of Unconventional Hydrocarbons

陈 昊 毕凯琳 张 军 刘虎子 张 胜 冯玉军

CHEN Hao BI Kailin ZHANG Jun LIU Huzi ZHANG Sheng FENG Yujun

体积压裂是非常规油气开采的主要手段。由于泵速高、液量大、排量大，要求压裂液具有可连续混配、低摩 阻和高返排率性能，因此需要使用滑溜水压裂液体系。其中的核心组分高分子减阻剂直接决定了滑溜水压裂液 的性能。本文针对近年来减阻剂的研究进展，综述了减阻剂类型和减阻机理，总结了影响减阻性能的因素，介绍 了减阻剂的现场应用情况，展望了减阻剂发展方向。

Volumetric fracturing is the main stimulation process for unconventional oil and gas production. Because of high pump speed，large fluid volume and large displacement，the fracturing fluids are required to possess the properties of continuous mixing， low friction and high flowback rate. Therefore，the "slickwater" fracturing fluid system is demanded. The core component of slickwater is polymer drag reducer，which directly determines the performance of slickwater. In this paper，the recent progress in the field of drag reduction in terms of drag reducer properties，drag reduction mechanism，effecting factors of drag reduction performances，were reviewed. The application situation of drag reducer in slickwater hydrofracking for unconventional oil and gas production were introduced. Finally，the future trends in developing polymer drag reducers were outlooked.

10.19346/j.cnki.1000-4092.2021.02.027