Self-heating viscosity reduction system and application thereof
The invention discloses a self-heat-generation viscosity reduction system and application thereof, and belongs to the field of viscosity reduction in thickened oil recovery. The self-heat-generation viscosity reduction system comprises a heat generation agent A, a heat generation agent B, an acidic...
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Main Authors | , , , |
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Format | Patent |
Language | Chinese English |
Published |
30.05.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a self-heat-generation viscosity reduction system and application thereof, and belongs to the field of viscosity reduction in thickened oil recovery. The self-heat-generation viscosity reduction system comprises a heat generation agent A, a heat generation agent B, an acidic catalyst, a hydrogen donor and an auxiliary agent, the heat generating agent A comprises sodium nitrite and/or potassium nitrite; the heat generating agent B comprises ammonium nitrate and/or ammonium sulfate; the acidic catalyst comprises at least one of sulfurous acid, formic acid and sulfamic acid; the hydrogen donor comprises at least one of nano aluminum powder, sodium borohydride and 9, 10-dihydroanthracene; the auxiliary agent is sodium fatty alcohol-polyoxyethylene ether sulfonate and/or lauryl sodium sulfate. According to the self-heat-generation viscosity reduction system, a thermal chemical reaction is utilized, a large amount of heat is generated, the formation temperature is increased, a favorable envi |
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Bibliography: | Application Number: CN202310207524 |