适用于多层防砂的LH网络树脂覆膜砂室内研究

疏松砂岩油藏开发到中后期,射开的油层增多,由于油层出砂而造成的亏空日益严重,防砂难度越来越大。为此开发了适合于多层防砂的LH网络树脂覆膜砂。介绍了网络剂的筛选、网络剂长度及加量的确定、网络覆膜砂强度的改进及影响网络覆膜砂的各种相关因素。研究认为,LH网络覆膜砂具有较高的强度及渗透率,在一定压力和排量下有防止覆膜砂反吐的功能,可用一次防砂管柱实现多层防砂施工。

Research of LH 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 LH 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.