可延时固化的KV-3型网络覆膜砂研究

疏松砂岩油藏开发到中后期，射开的油层越来越多，由于出砂造成的地层亏空越来越大，防砂难度进一步加大。针对这一问题，开发了适合多层防砂、可以延时固化的KV-3型网络覆膜砂。文中介绍了这种覆膜砂的延时固化原理及其各种性能的评价。研究认为，KV-3型网络覆膜砂可以人为控制固化，同时具有较高的强度和渗透率，用一次防砂管柱可以实现多层防砂施工的目的。

The Research of KV Net Resin Covered Sand Used in Multi-layers Sand Control

In the mid later period of sand rock reservoir developing,the opened reservoir become more and more,loss caused by sand production become more and more serious.According to this problem,we developed KV net resin covered sand for multi layers sand control.This paper introduced the selection of net agent,the definition of net agent length and added quantity,improving of net cover sand strong etc.Through research,the net covered sand has the following features:high permeability,preventing covered sand spit under certain pressure and displacement and realized multi layers sand control in one time sand control pipe.