High-velocity jet and propellant fracture device for gas and oil well production

Patent · Tue Jul 05 04:00:00 EDT 1983

OSTI ID:5737481

Ford, F C; Hill, G A; Vincent, C T

An integrated jet perforation and controlled propellant fracture device and method is disclosed for enhancing production in oil or gas wells, wherein the device is inserted in a well bore to the level of a geological production structure; the fracturing device being constructed with a cylindrical housing of variable cross-section and wall-thickness with the housing filled with combustible propellant gas generating materials surrounding specially oriented and spaced shaped charges, having an abrasive material distributed within the propellant filled volume along the device length to produce enhanced perforations with attendant pressure-controlled gas and fluid injection into the perforations to produce controlled frac entry at point or points desired in the producing zones of the well bore, wherein a high velocity jet penetrates the production zone of the well bore initiating fractures, and is simultaneously followed by a high pressure propellant material which amplifies and propagates the jet initiated fractures.

• Assignee: EDB-83-195602
• Patent Number(s): US 4391337
• OSTI ID: 5737481
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
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Plowshare-- (-1989)
BOREHOLES
CAVITIES
DRILLING EQUIPMENT
DRILLS
EQUIPMENT
EXPLOSIVE STIMULATION
FLOW RATE
FLUIDS
GASES
JET DRILLS
NATURAL GAS WELLS
OIL WELLS
PROPELLANTS
STIMULATION
WELL STIMULATION
WELLS