Method of clay stabilization in enhanced oil recovery

Patent · Tue May 08 04:00:00 EDT 1984

OSTI ID:6486839

Borchardt, J K; Brown, D L

A method is disclosed for preventing permeability damage due to clay swelling, disintegration and migration in subterranean formations producing oil and gas, where such formations are to be the subject of enhanced oil recovery techniques using anionic or caustic flood chemicals. Prior to the use of such enhanced oil recovery techniques, a cationic organic polymer capable of stabilizing clays is introduced into an oil reservoir treatment area followed by introduction of a sufficient amount of a non-anionic aqueous spacer fluid to cause the cationic organic polymer to reorient itself on the reservoir clays in a substantially monomolecular layer and manner such that it will continue to stabilize the reservoir clays but will not substantially react with the anionic or caustic flood chemicals to form permeability damaging precipitates or to decompose thereby reducing its clay stabilization effectiveness.

• Assignee: Halliburton Co.
• Patent Number(s): US 4447342
• OSTI ID: 6486839
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ADDITIVES
CAUSTIC FLOODING
CHEMICAL COMPOSITION
CLAYS
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FORMATION DAMAGE
ION EXCHANGE
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERMEABILITY
POLYMERS
RECOVERY
RESERVOIR ROCK
ROCK-FLUID INTERACTIONS
STABILIZATION
WATERFLOODING
WELLS