Synoil Fluids Holdings Inc.

Gasfrac Energy Services Inc.

Chris Collett

Shaun T Mesher

Olivia Steward

Daniel Firth

Breakers for gelling agents are disclosed, for example pyromellitamide gelling agents. The breakers include sulfonic acids in one example.

Amide branched aromatic gelling agent breakers

A downhole fluid comprises a base fluid, for example a hydrocarbon base fluid, and a pyromellitamide gelling agent. The pyromellitamide gelling agent may have the general formula of: with R, R, R, R, R, R, R, and Reach being a hydrogen or an organic group. R1, R2, R3 and R4 may each be hexyl groups or may each be octyl groups. A composition for gelling a downhole fluid, the composition comprising a pyromellitamide gelling agent and a wetting agent.

Pyromellitamide gelling agents

A gelling agent for a hydrocarbon fracturing fluid is disclosed, comprising the general formula of: in which X is an OR, NRR, or SRgroup, Ris an organic group having 2-24 carbon atoms, and Ris an organic group or a hydrogen. Y is an NRRor SRgroup, Ris an organic group having 2-24 carbon atoms, and Ris an organic group or a hydrogen. A method of making a gelling agent for a hydrocarbon fracturing fluid is also disclosed. Phosphorus oxyhalide is reacted with a chemical reagent to produce substantially only diester phosphorus oxyhalide, the chemical reagent comprising at least one of an organic alcohol having 2-24 carbon atoms, an organic amine with an organic group having 2-24 carbon atoms, and an organic sulfide having 2-24 carbon atoms. The diester phosphorus oxyhalide is then hydrolyzed to produce diester phosphoric acid. 

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Calgary, Canada

Chris Collett