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

Abstract: 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 R1, R2, R3, R4, R5, R6, R7, and R8 each 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.

Abstract: A pyromellitamide or benzamide, previously disclosed for use as a gelling agent in a downhole fluid, is added to a hydrocarbon fluid for use as a friction reducing agent, for example in a motor or pipeline. An example pyromellitamide friction reducing agent may have the general formula of: with R1, R2, R3, and R4 each being an organic group. A further use as a viscosity reducing agent in diluted bitumen is also disclosed.

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

Abstract: 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 R1, R2, R3, R4, R5, R6, R7, and R8 each 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.

Abstract: A gelling agent for a hydrocarbon fracturing fluid is disclosed, comprising the general formula of: in which X is an OR1, NR1R2, or SR1 group, R1 is an organic group having 2-24 carbon atoms, and R2 is an organic group or a hydrogen. Y is an NR3R4 or SR3 group, R3 is an organic group having 2-24 carbon atoms, and R4 is 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.

Abstract: A gelling agent for a hydrocarbon fracturing fluid is disclosed, comprising the general formula of: in which X is an OR1, NR1R2, or SR1 group, R1 is an organic group having 2-24 carbon atoms, and R2 is an organic group or a hydrogen. Y is an NR3R4 or SR3 group, R3 is an organic group having 2-24 carbon atoms, and R4 is 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.