| abstract |
An environment-friendly anti-high temperature and salt-resistant weathered coal drilling anti-slump agent, the preparation steps of which are: ultrafine pulverization, in-situ catalytic oxidation, liquid-solid separation, sulfonation reaction, alkylation reaction, and graft copolymerization resinization After the reaction, the quality inspection of the weathered coal resin in the drilling mud conforms to the ministerial standard. It is a high temperature and salt resistant drilling anti-slump agent, which can reduce the amount of bentonite in the application of the drilling anti-slump agent, adjust the molecular weight in the weathered coal structure, and has excellent properties. Drilling anti-slump function. |