In order to improve plugging capability of weak gel profile controlling agent to high osmotic cores, commonly add some solid grains into it.

为了提高弱凝胶调剖剂对高渗透岩心的堵塞能力，一般添加部分固体颗粒。

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NSG-2 solid-free gel timing plugging agent is prepared with sesbania gum, paraformaldehyde and gum extender as main materials.

以田菁胶、磨芋胶、多聚甲醛和凝胶增强剂为主要原料，合成新型的无固相凝胶定时堵剂NSG - 2。

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Since pure foaming agent with short half-value period causes a poor plugging effect for high-permeability reservoir with water channeling, this paper studies on gel foam sysem.

针对纯发泡剂半衰期较短、对已形成注入水窜流通道的高渗透储层封堵效果较差的实际问题，开展了凝胶泡沫体系的研究。

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Since pure foaming agent with short half-value period causes a poor plugging effect for high-permeability reservoir with water channeling, this paper studies on gel foam sysem.

针对纯发泡剂半衰期较短、对已形成注入水窜流通道的高渗透储层封堵效果较差的实际问题，开展了凝胶泡沫体系的研究。

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