Use of uncalcined/partially calcined ingredients in the manufacture of sintered pellets useful for gas and oil well proppants
A method is described of fracturing a subterranean formation located at a depth in excess of 6,000 but less than 14,000 feet, comprises injecting a hydraulic fluid into the formation at a rate and pressure sufficient to open a fracture therein. This fluid containing composite, sintered, spherical pellets has a permeability to distilled water at about 75/sup 0/F (24/sup 0/C) which decreases not more than about three-fourths when the applied pressure on the pellets is increased from 2,000 to 10,000 psi (140-700 kg/cm/sup 2/). The pellets are prepared from materials consisting essentially of clay materials, bauxitic materials and alumina. The materials include at least one uncalcined or partially calcined ingredient selected from the group consisting of clay materials, bauxitic materials and dust collector fines. They are produced during the calcination of clay materials or bauxitic materials. The pellets have an alumia-to-silica dry-weight-basis ratio from about 9:1 to about 1.1, the pellets having an apparent specific gravity of less than 3.30 and at least about 6.51 weight percent of other than alumina and silica.
- Assignee:
- Standard Oil Proppants Company, L.P., Irving, TX
- Patent Number(s):
- US 4658899
- OSTI ID:
- 6825429
- Resource Relation:
- Patent File Date: Filed date 22 Apr 1985
- Country of Publication:
- United States
- Language:
- English
Similar Records
Sintered spherical pellets containing clay as a major component useful for gas and oil well proppants
Sintered spherical pellets containing clay as a major component useful for gas and oil well proppants
Related Subjects
03 NATURAL GAS
NATURAL GAS WELLS
HYDRAULIC FRACTURING
OIL WELLS
ALUMINIUM OXIDES
BAUXITE
CALCINATION
CLAYS
DENSITY
DEPTH 1-3 KM
DEPTH 3-6 KM
DUST COLLECTORS
HIGH PRESSURE
HYDRAULIC FLUIDS
MEDIUM TEMPERATURE
PELLETS
PERMEABILITY
QUANTITY RATIO
SINTERED MATERIALS
WATER
ALUMINIUM COMPOUNDS
ALUMINIUM ORES
CHALCOGENIDES
CHEMICAL REACTIONS
COMMINUTION
DECOMPOSITION
DEPTH
DIMENSIONS
FLUIDS
FRACTURING
HYDROGEN COMPOUNDS
MATERIALS
ORES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PYROLYSIS
THERMOCHEMICAL PROCESSES
WELLS
WORKING FLUIDS
020300* - Petroleum- Drilling & Production
030900 - Natural Gas- Artificial Stimulation
Plowshare- (-1989)