浅析压裂液在页岩储层中的伤害特征

An Analysis of Damage Characteristics of Fracturing Fluid in Shale Reservoirs

近年来随着勘探及开发工作中心逐渐向非常规油气藏转移,水平井大型分段压裂改造技术成为非常规油藏的主要增产手段,大规模的压裂液进入储层不可避免地对储层造成不同程度的损害。通过分析不同入井流体在各个区带的损害机理及影响因素,提出改进技术方法、明确下步研究攻关方向,为大规模水力压裂“净化血液”,为非常规油气的规模开发夯实基础。

In recent years,as the focus of exploration and development gradually shifts towards unconventional oil and gas reservoirs,large-scale multi-stage hydraulic fracturing has become a primary method to enhance production in these reservoirs.However,the extensive injection of fracturing fluid into the reservoir unavoidably causes varying degrees of damage.The study analyzes the damage mechanisms and influencing factors of different wellbore fluids in each zone.Additionally,it proposes improved techniques and identifies future research directions,ultimately purifying the"blood"of large-scale hydraulic fracturing and establishing a solid foundation for the development of unconventional oil and gas resources.