Method of recovering oil using a chemical blending system

Patent · Tue Sep 02 00:00:00 EDT 1975

OSTI ID:7356289

Watson, Jr, W D

A system and method are described for blending a dry chemical and a liquid. A particular application of this invention is in polymer waterflooding an oil-containing subterranean formation to recover oil therefrom. A dry polymer and a liquid are blended to form a viscous liquid which is used in the polymer waterflooding operation. The system is comprised of a hopper for receiving and feeding the dry chemical into a pipe where it is transported by gas to a liquid weir and there mixed with the liquid. The hopper is adapted for having a positive pneumatic pressure applied at an upper location thereof and a negative pneumatic pressure applied at a lower location thereof to feed the dry chemical into a pipe. The dry chemical is then transported by gas through the pipe and directed from the downstream end of the pipe into the liquid weir. The liquid weir is adapted for having liquid flowed therethrough to mix and blend the liquid with the dry chemical. A container is provided to contain the blended mixture. (auth)

• Assignee: Mobil Oil Corp.
• Patent Number(s): US 3902558
• OSTI ID: 7356289
• Resource Relation: Patent File Date: Filed date 20 Dec 1973
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
WELL STIMULATION
WATERFLOODING
ENHANCED RECOVERY
FLUID INJECTION
LIQUIDS
ORGANIC POLYMERS
PETROLEUM
RESERVOIR ROCK
WATER
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLYMERS
ROCKS
WELLS
020300* - Petroleum- Drilling & Production