2results about How to "High solubilizing power" patented technology

The invention relates to the technical field of heavy oil thermal recovery reagents, in particular to a strong emulsion system for assisting viscosity reduction and plug removal as well as a preparation method and application thereof. The strong emulsion system is prepared from the following raw materials in percentage by mass: 2%-10% of sorbitol dehydrated ester mixture, 5%-10% of 120 # solvent oil, 3%-6% of alcohol ether carboxylate, 0.5%-1.0% of ethylene glycol tert-butyl ether, 5%-10% of organic acid, 3%-6% of polybasic polycarboxylic acid, 3%-6% of villiaumite, 1%-2% of imidazoline corrosion inhibitor, 1.0%-3.0% of functional additive and 46%-76% of water. The strong emulsion system can perform deep plug removal on an underground reservoir and prevent organic acid of the strong emulsion system from being combined with heavy components in the thick oil so as to avoid formation of acid sludge, so that the plug removal effect of the strong emulsion system can be improved.

This invention discloses an epoxide derivative, its preparation method, and its application. The epoxide derivative has the chemical structure shown in formula (I): R-O-(EO). a -(PO) b - [(EO) c -(PO) d ] n - (EO) e -(PO) f -H (I); where R represents a C4-C32 straight-chain or branched alkyl group, and the [(EO)] c -(PO) d ] n The total block unit represents n (EO)-(PO) blocks linked together, where n ranges from 2 to 16. c and d represent the average molar number of EO and PO in the total block unit, with values ​​ranging from 1 to 10 and 1 to 2.5, respectively. a, b, e, and f each represent the average molar number, with values ​​of a and e ranging from 0 to 10, and values ​​of b and f ranging from 0 to 30. The epoxy alkyl derivatives of this invention combine low-temperature flowability, water solubility, and safety, and can be used as high-performance surfactants.