Amino resin modified xanthan polymer gels for permeability profile control

Patent · Tue Jan 05 04:00:00 EST 1988

OSTI ID:5287584

Shu, P

A process for closing pores in a hydrocarbonaceous fluid bearing formation to obtain improved sweep efficiency during a water flood oil recovery operation wherein the process comprises injecting into the formation a gellable composition is described comprising: (a) water; (b) about 0.2 to about 5.0 wt. percent of a cross linkable polysaccharide biopolymer having at least one functional group selected from a member of the group consisting of an amine, an amide, a hydroxyl, or a thiol group; (c) about 0.02 to about 5.0 wt. percent of an aminoplast resin which reinforces the biopolymer; and (d) sufficient transitional metal ions to form a gel of a size and strength sufficient to close one or more permeable zones in the formation under substantially all pH conditions.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4716966
• OSTI ID: 5287584
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CHEMICAL COMPOSITION
COLLOIDS
DISPERSIONS
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
GELS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERMEABILITY
PETROCHEMICALS
PETROLEUM
PETROLEUM PRODUCTS
POLYMERS
RECOVERY
RESERVOIR ROCK
RESINS
ROCK-FLUID INTERACTIONS
STIMULATION
WATERFLOODING
WELL STIMULATION
WELLS