Patent ID: 8946130
Filing Date: 2015-02-03
Classification: C09K,E21B

Abstract:
1. A method for improving gas production from a formation comprising the step of: treating a formation with a treating composition comprising a reaction product of an amine and a phosphate-containing compound to produce partially or completely coated formation surfaces, formation particulates, and formation fines changing a wettability value to a value closer to neutral than in the absence of the coating and thereby reducing water blocking, improving water displacement, improving relative gas permeability and improving gas production in the formation and where the coating is deformable, where: the composition comprises a reaction product of an amine and a phosphate ester, the amine is of the general formula R the phosphate esters include phosphate esters of the general formula P(O)(OR where the amine is selected from the group consisting of aniline and alkyl anilines or mixtures of alkyl anilines, pyridines and alkyl pyridines or mixtures of alkyl pyridines, pyrrole and alkyl pyrroles or mixtures of alkyl pyrroles, piperidine and alkyl piperidines or mixtures of alkyl piperidines, pyrrolidine and alkyl pyrrolidines or mixtures of alkyl pyrrolidines, indole and alkyl indoles or mixture of alkyl indoles, imidazole and alkyl imidazole or mixtures of alkyl imidazole, quinoline and alkyl quinoline or mixture of alkyl quinoline, isoquinoline and alkyl isoquinoline or mixture of alkyl isoquinoline, pyrazine and alkyl pyrazine or mixture of alkyl pyrazine, quinoxaline and alkyl quinoxaline or mixture of alkyl quinoxaline, acridine and alkyl acridine or mixture of alkyl acridine, pyrimidine and alkyl pyrimidine or mixture of alkyl pyrimidine, quinazoline and alkyl quinazoline or mixture of alkyl quinazoline, and mixtures or combinations thereof.