Process of forming vertical well bore fractures by use of circumferential notching

Patent · Tue Apr 11 04:00:00 EST 1967

OSTI ID:6345917

Huitt, J L; Teplitz, A J

This is a method of fracturing an oil or gas-bearing formation to increase production rate. A well is drilled and its borehole deviated from the vertical so that a portion extends through the oil-bearing formation at an angle of at least 45$ with the vertical. A notch is cut in the casing to expose the formation adjacent to the well in a plane substantially perpendicular to the axis of the well. A liquid is displaced down the well into the formation at the opening in the casing. The pressure on the liquid is increased to create a single fracture from the well at the opening in the casing substantially perpendicular to the casing. A propping agent is then deposited in the fracture. (7 claims)

• Assignee: TUL; EDB-81-078476
• Patent Number(s): US 3313348
• OSTI ID: 6345917
• 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)
BOREHOLES
CAVITIES
COMMINUTION
ENERGY SOURCES
FAILURES
FOSSIL FUELS
FRACTURES
FRACTURING
FUELS
NATURAL GAS WELLS
NOTCHES
OIL WELLS
PETROLEUM
STIMULATION
WELL COMPLETION
WELL STIMULATION
WELLS