High-temperature oil well plugging agent
A plugging agent, high temperature resistant technology, applied in the field of petroleum drilling materials, can solve the problems of low plugging efficiency, poor high temperature resistance and loss of the plugging agent, and achieves convenient plugging removal, high pressure bearing capacity, and service temperature limit. improved effect
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Embodiment 1
[0025] A high temperature resistant oil well plugging agent, including the following raw materials by mass percentage: 85% aluminate cement, 3% sodium hexametaphosphate, 8% fly ash, 2% sepiolite powder, 1.5% boric acid, 0.5% tartaric acid %, water-cement ratio 0.45;
Embodiment 2
[0027] A high temperature resistant oil well plugging agent, comprising the following raw materials by mass percentage: 70% aluminate cement, 5% sodium hexametaphosphate, 16.5% fly ash, 3% micro silicon, 3% sepiolite powder, boric acid 2%, tartaric acid 0.5%, water-cement ratio 0.75;
Embodiment 3
[0029] A high temperature resistant oil well plugging agent, comprising the following raw materials by mass percentage: 60% aluminate cement, 6.5% sodium polyphosphate, 20% fly ash, 6% micro silicon, 3.5% sepiolite powder, boric acid 3%, tartaric acid 1%, water-cement ratio 0.7;
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