特低渗油田压裂兼驱油一体化工作液体系评价

Evaluation of the system of horizontal well fracturing and oil displacement in the ultra-low permeability oilfield

在特低渗油田水平井压裂过程中,为减少大量残液对地层的伤害,以及避免随压裂液注入储层的能量在返排过程中被释放而造成的浪费,室内对一种压裂兼驱油一体化工作液体系进行了检测和评价。该一体化工作液体系主要成份为小分子表活剂,集压裂携砂和储层驱油为一体,室内通过实验分别对工作液的压裂和驱油两个方面的性能指标进行了检测和评价。

In the process of horizontal well fracturing of ultra-low permeability oil field,a kind of integrated working fluid system of fracturing and oil displacement was tested and evaluated,in order to reduce the damage to the formation by a large amount of residual fluid,and avoid the waste caused by the release of energy injected into the reservoir with the fracturing fluid during the re-discharge process.The main component of the integrated working fluid system is small molecular table agent,this system can fracturing with sand and oil displacement reservoir,the performance index of fracturing and oil repellent of working fluid was tested and evaluated by indoor experiments.