Method of explosively fracturing from drain holes using reflective fractures
Patent
·
OSTI ID:6620594
A system is described for explosively stimulating earth formations. One or more drain holes are drilled horizontally into the formation from the main vertical well bore. Hydraulic fractures are created in the formation and are spaced from and parallel to the drain hole. An explosive is loaded into the drain hole and subsequently detonated. Since the shock wave from the detonation will reflect from the fractures which are located parallel to the drain hole, a tension wave results which provides an efficient force to fracture the formation. In some cases, the formation would be fractured before the drain holes are drilled. (7 claims)
- Assignee:
- Sun Oil Co.
- Patent Number(s):
- US 3771600
- OSTI ID:
- 6620594
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
BOREHOLES
CAVITIES
COMMINUTION
DIRECTIONAL DRILLING
DRILLING
ENHANCED RECOVERY
EXPLOSIVE STIMULATION
FRACTURING
HYDRAULIC FRACTURING
MECHANICS
OIL WELLS
RECOVERY
RESERVOIR ROCK
ROCK MECHANICS
ROCKS
SEDIMENTARY ROCKS
STIMULATION
WELL STIMULATION
WELLS
020300* -- Petroleum-- Drilling & Production
BOREHOLES
CAVITIES
COMMINUTION
DIRECTIONAL DRILLING
DRILLING
ENHANCED RECOVERY
EXPLOSIVE STIMULATION
FRACTURING
HYDRAULIC FRACTURING
MECHANICS
OIL WELLS
RECOVERY
RESERVOIR ROCK
ROCK MECHANICS
ROCKS
SEDIMENTARY ROCKS
STIMULATION
WELL STIMULATION
WELLS