Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Method for placing ball sealers onto casing perforations

Patent ·
OSTI ID:5771279
;
A method is disclosed for transporting ball sealers down a perforated casing of a well to affect fluid diversion when hydraulically treating a formation penetrated by the well. In this invention, ball sealers are transported to said perforations in a carrier fluid system comprising a leading fluid portion having a density greater than said ball sealers and a trailing fluid portion having a density less than said ball sealers. The ball sealers will be moved downwardly in the casing to the perforations and will seat onto the perforations through which fluids are flowing to divert fluid through the unplugged perforations.
Assignee:
Exxon Production Research Co
Patent Number(s):
US 4195690
OSTI ID:
5771279
Country of Publication:
United States
Language:
English

Similar Records

Method for placing ball sealers onto casing perforations in a deviated portion of a wellbore
Patent · Tue Jun 28 00:00:00 EDT 1988 · OSTI ID:6785211
Well treatment fluid diversion with low density ball sealers
Patent · Tue Jul 25 00:00:00 EDT 1978 · OSTI ID:6508395
Low density ball sealers for use in well treatment fluid diversions
Patent · Mon Jan 12 23:00:00 EST 1981 · OSTI ID:6433013

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ACIDIZATION
COMMINUTION
DENSITY
ENHANCED RECOVERY
FLUIDS
FRACTURING
HYDRAULIC FRACTURING
NATURAL GAS WELLS
OIL WELLS
PERFORATION
PHYSICAL PROPERTIES
PLUGGING
RECOVERY
SEALS
WELL CASINGS
WELLS