Well treating compositions containing water superabsorbent material and method of using the same
AssigneeBJ Services Company
InventorsXiaolan Wang, Qi Qu
Life of this patent
Estimating the term…
Abstract
A well treating composition containing a polysaccharide-based water-superabsorbent material has particularly applicability as a thermal insulating, fracturing or acid stimulation fluid. The water-superabsorbent material is capable of absorbing, at a minimum, its own weight. Particularly effective are biodegradable materials containing guar gum and carrageenan. The composition may further contain a crosslinking agent, brine and/or a viscosifying polymer or a gelling agent. As an oil-based fluid, the crosslinking agent is absorbed onto the water-superabsorbent material and serves to effectively delay crosslinking.
Claims28
A well treating composition comprising at least one superabsorbent material containing guar gum and carrageenan, wherein the material is capable of absorbing a minimum of its own weight in water and further wherein the viscosity of the well treating composition is such so as to render the composition pumpable.
An oil-based well treating composition comprising a polysaccharide-based superabsorbent material, a crosslinking agent absorbed onto the superabsorbent material and a gelling agent.
Dependencies are inferred from the claim text.