Enhanced oilfield swellable elastomers and methods for making and using same

An oilfield apparatus comprising:

• a high temperature swellable elastomeric composition comprising:
• a crosslinkable elastomer or a mixture of crosslinkable elastomers,
• a cure system,
• a co-cure system and
• optional ionic additive system,
• where the cured elastomeric composition includes covalent and ionic crosslinks and is swellable in water and aqueous brines.

An oilfield assembly for exploring for, drilling for, testing for, or producing hydrocarbons comprising:

• (a) one or more oilfield apparatus selected from the group consisting of tubing, jointed pipe, sucker rods, electric submersible pumps, submersible pump motor protector bags, packers, packer elements, blow out preventers, blow out preventer elements, self-healing cements, proppants, O-rings, T-rings, centralizers, hangers, plugs, plug catchers, check valves, universal valves, spotting valves, differential valves, circulation valves, equalizing valves, safety valves, fluid flow control valves, sliding seals, connectors, disconnect tools, downhole filters, motorheads, retrieval and fishing tools, bottom hole assemblies, seal assemblies, snap latch assemblies, anchor latch assemblies, shear-type anchor latch assemblies, no-go locators, sensor protectors, gaskets, pump shaft seals, tube seals, valve seals, seals and insulators used in electrical components, seals used in fiber optic connections, pressure sealing elements for fluids, and combinations thereof;
• and
• (b) one or more of the oilfield apparatus comprising an elastomeric composition comprising a crosslinkable elastomer or a mixture of crosslinkable elastomers, a cure system, a co-cure system and optional ionic additive system, where the cured elastomeric composition includes covalent and ionic crosslinks and is swellable in water and aqueous brines.