人工井壁防砂树脂涂覆颗粒耐冲刷性能评价实验装置研制与应用

树脂涂覆颗粒耐冲刷性是反映人工井壁防砂工艺有效性的重要指标,但目前尚没有专业设备能够对该指标进行评价。为此,研制了一种人工井壁防砂树脂涂覆颗粒耐冲刷性能评价实验装置,利用该实验装置可模拟冲刷排量、冲刷线速度、冲刷压差及冲刷时间等因素对人工井壁防砂树脂涂覆颗粒耐冲刷性的影响。利用该装置对海上某油田在用的2种树脂涂覆颗粒FQ-1和HY进行耐冲刷性能评价,实验结果与现场实际出砂现象基本一致,树脂涂覆颗粒HY耐冲刷性更强。根据实验结果,在后续人工井壁防砂中使用树脂涂覆颗粒HY,防砂效果良好。该实验装置的成功研制为人工井壁防砂树脂涂覆颗粒优选提供了一种新的评价手段,为人工井壁防砂技术在海上油田的大规模推广应用提供了技术支持。

Development and Application of an Experimental Device for Evaluating the Scouring Resistance of Resin-coated Particles for Artificial Sidewall Sanding Control

The scouring resistance of resin-coated particles is an important indicator of the effectiveness of the artificial sidewall sanding control technology,but there is no professional equipment available to evaluate this indicator.Therefore,an experimental device for evaluating the erosion resistance of resin-coated particles for artificial sidewall sanding control was developed,which can simulate the effects of such factors as scouring displacement,linear scouring velocity,scouring pressure difference and scouring time on the scouring resistance of resin-coated particles for artificial sidewall.The device was applied to evaluate the scouring resistance of two types of resin-coated particles(FQ-1 and HY)used in an offshore oilfield.The experimental results were in general agreement with the actual sanding in the field,and the resin-coated particle HY was more resistant to scouring.According to the experimental results,the resin-coated particle HY was used in the subsequent sanding control of the artificial sidewall,achieving outstanding sanding control effect.The experimental device successfully developed provides a new evaluation method for the selection of resin-coated particles for artificial sidewall sanding control,and provides technical support for the large-scale promotion and application of artificial sidewall sanding control technology in offshore oilfields.