Abstract

To develop a kind of ideal sealing material, uniform experiments were conducted in a simulation test device after the determination of material composition and approximate ratio range. The experimental data was fitted by stepwise regression analysis and optimal mixture ratio was obtained. The reliability is perfect when the ratio of foaming agent FP, foam stabilizer WP, solid filler RX and solid filler GX is 1.5:2:3:3. Field application tests show that sealing material in the above ratio has advantages of less time waste, higher reliability and better adaptability. It has a wide application prospect for fractured borehole sealing.

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