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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Bibliographic Details
Main Authors HE JING, WANG HAOWEN, HUANG RENGANG, LI NIANYIN
Format Patent
LanguageChinese
English
Published 30.05.2023
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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
Bibliography:Application Number: CN202310207524