Apparatus for making preformed foam for use in wells

Patent · Tue Jul 20 04:00:00 EDT 1971

OSTI ID:5469054

Hutchison, S O

An apparatus for preforming foam for use as a circulating fluid in a well includes a foam generator which is connected to a source of gas and a source of liquid foamable solution. The generator consists of a tubular member having a gas entry port formed at one end. A liquid entry port is located on the side of the tubular member below the gas entry port. The interior of the tubular member contains foam generating means for intimately mixing the gas and foamable solution. A foam exit is formed at the other end of the tubular member and is connected to a conduit. This conduit is connectable to either a tubing string or to a well annulus for circulating foam in a well. The foam-generating apparatus thus provides a stable preformed foam suitable for use in well operations. (4 claims)

• Assignee: Chevron Research Co.
• Patent Number(s): US 3593800
• OSTI ID: 5469054
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ADDITIVES
CLEANING
COLLOIDS
DESIGN
DISPERSIONS
EQUIPMENT
FLUID FLOW
FLUIDS
FOAMS
GAS FLOW
LIQUIDS
NATURAL GAS WELLS
OIL WELLS
TUBES
WELL COMPLETION
WELL SERVICING
WELLS