Method and product for producing flow in dead wells

Patent · Tue Jan 05 04:00:00 EST 1965

OSTI ID:6705094

Sharp, T I

This is a method and product for activating drowned wells. A ''foam'' stick of water and oil soluble surfactant material, such as soap and sulfonated petroleum oil, is used to lower the surface tension of the water in the well bore. A material capable of effervescing with a violent exothermic reaction in the presence of the liquid is added to the foam stick to vastly expedite the production of foam. This effervescent material, such as powdered aluminum enclosed in a gelatin capsule, and caustic soda likewise enclosed within a gelation capsule, are placed separately within a cavity within the foam stick. The cavity is near the top end of the stick. The foam stick is dropped into the well and dissolves first, generating a large volume of foam. After a predetermined amount of time the liquid reaches the gelatin capsules, dissolving them and allowing the aluminum powder and caustic soda to produce large quantities of gas at a very rapid rate to assist in lifting the foam from the well. (7 claims)

• Assignee: TUL; EDB-81-025635
• Patent Number(s): US 3164206
• OSTI ID: 6705094
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ABANDONED WELLS
ALUMINIUM
COLLOIDS
DISPERSIONS
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOAMS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
METALS
MISCIBLE-PHASE DISPLACEMENT
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
PETROLEUM
RECOVERY
STIMULATION
SURFACE PROPERTIES
SURFACE TENSION
SURFACTANTS
WELL STIMULATION
WELLS