Method for fracturing coal seams
Patent
·
OSTI ID:5788756
This patent describes a method for fracturing a coal seam. It comprises: injecting a water-based fracturing fluid into the coal seam to initiate and propagate a fracture in the coal seam. The fracturing fluid comprises: a wetting agent for converting the coal fines which are formed during the fracturing of the coal seam from their natural hydrophobic state to a hydrophilic state; and a dispersant for dispersing the hydrophilic fines in the fracturing fluid.
- Assignee:
- Atlantic Richfield Co., Los Angeles, CA (USA)
- Patent Number(s):
- A; US 4995463
- Application Number:
- PPN: US 7-532830
- OSTI ID:
- 5788756
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
012030* -- Coal
Lignite
& Peat-- Underground Mining-- (1987-)
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
COAL DEPOSITS
COAL SEAMS
COMMINUTION
DISPERSIONS
FLUIDS
FRACTURING
FRACTURING FLUIDS
GEOLOGIC DEPOSITS
HYDRAULIC FRACTURING
MINERAL RESOURCES
MINING
MIXTURES
RESOURCES
SOLUTIONS
SURFACTANTS
UNDERGROUND MINING
WETTING AGENTS
012030* -- Coal
Lignite
& Peat-- Underground Mining-- (1987-)
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
COAL DEPOSITS
COAL SEAMS
COMMINUTION
DISPERSIONS
FLUIDS
FRACTURING
FRACTURING FLUIDS
GEOLOGIC DEPOSITS
HYDRAULIC FRACTURING
MINERAL RESOURCES
MINING
MIXTURES
RESOURCES
SOLUTIONS
SURFACTANTS
UNDERGROUND MINING
WETTING AGENTS