Temporary diverting agent and use thereof in treatment of subterranean strata

Patent · Tue Mar 17 04:00:00 EST 1970

OSTI ID:5376659

Eilers, L H; Stout, C M

A composition useful as a diverting agent in the treatment of subterranean strata penetrated by a well bore consists of an aqueous suspension containing slowly water-soluble particulate dextrin materials, slowly water-soluble particulate aldehyde polymers, and a thickening and/or suspending agent.The method of treating a formation penetrated by a well bore to divert fluids from more porous strata to less porous strata consists of injecting the composition down the well bore under sufficient pressure to force at least a portion of it into the more porous formation where the composition serves as a temporary plugging agent to divert fluids, such as fracturing fluids or other treating fluids to less porous, accessible or tighter portions of the formation. (10 claims)

• Assignee: Dow Chemical Co.
• Patent Number(s): US 3500929
• OSTI ID: 5376659
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ADDITIVES
ALDEHYDES
AQUEOUS SOLUTIONS
BOREHOLES
CARBOHYDRATES
CAVITIES
DEXTRIN
DISPERSIONS
FLUID INJECTION
GEOLOGIC STRATA
GEOLOGIC STRUCTURES
MIXTURES
ORGANIC COMPOUNDS
PERMEABILITY
PLUGGING
POLYMERS
POLYSACCHARIDES
POROSITY
RESERVOIR ROCK
SACCHARIDES
SOLUTIONS