Formation fracturing technique using liquid proppant carrier followed by foam
Patent
·
OSTI ID:6534236
A process is described of hydraulically fracturing a subterranean formation penetrated by a well extending into the earth, comprising: initiating and propagating a vertical fracture in the formation by pumping into the well a mixture of a proppant and a fracturing liquid selected from the group consisting of gelled water and gelled liquid hydrocarbons at a pressure greater than the fracturing pressure and at a substantial volume; and terminating the fracturing process and closing the fracture on the proppant including ceasing the pumping of the mixture of proppant and fracturing liquid into the well and commencing the pumping of a predetermined quantity of foam into the well; and then backflowing at least a substantial quantity of the foam from the formation; and finally, shutting the well in.
- Assignee:
- NOV; EDB-87-107117; NOV-87-063217
- Patent Number(s):
- US 4665982
- OSTI ID:
- 6534236
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
58 GEOSCIENCES
580300 -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
COLLOIDS
COMMINUTION
CRACK PROPAGATION
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FAILURES
FLUIDS
FOSSIL FUELS
FRACTURES
FRACTURING
FRACTURING FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
GELS
HYDRAULIC FRACTURES
HYDRAULIC FRACTURING
HYDROCARBONS
HYDROGEN COMPOUNDS
MIXTURES
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PRESSURE DEPENDENCE
PROPPING AGENTS
PUMPING
RECOVERY
STIMULATION
VOLUME
WATER
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
58 GEOSCIENCES
580300 -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
COLLOIDS
COMMINUTION
CRACK PROPAGATION
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FAILURES
FLUIDS
FOSSIL FUELS
FRACTURES
FRACTURING
FRACTURING FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
GELS
HYDRAULIC FRACTURES
HYDRAULIC FRACTURING
HYDROCARBONS
HYDROGEN COMPOUNDS
MIXTURES
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PRESSURE DEPENDENCE
PROPPING AGENTS
PUMPING
RECOVERY
STIMULATION
VOLUME
WATER
WELL STIMULATION
WELLS