PYROMELLITAMIDE GELLING AGENTS

摘要

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.

主权项

1. A fluid for downhole uses, the fluid comprising a hydrocarbon base fluid, a gelling agent, and an inert solvent to enhance gelling of the gelling agent in the hydrogen base fluid for downhole uses, in which the gelling agent is a pyromellitamide gelling agent that comprises an aromatic ring having four amide branches, each of the four amide branches having a carbon to carbon bond with the aromatic ring and each amide branch of the four amide branches has a side chain that is a hydrogen;
in which the gelling agent has the general formula of: in which each of R5, R6, R7 and R8 are hydrogens, and each of R1, R2, R3, and R4 is an alkyl group; and in which R1, R2, R3, and R4 are each hexyl groups or R1, R2, R3, and R4 are each octyl groups.