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Method of controlling displacement of propping agent in fracturing treatments

Patent ·
OSTI ID:6886466
;

A method of preventing overdisplacement of propping agent particles during well treatments to hydraulically induce a fracture in a subterranean formation wherein buoyant or neutrally buoyant ball sealers are incorporated in the trailing end portion of the fracturing fluid. The ball sealers seat on at least some of the well perforations in final stages of particle injection thereby causing the surface pumping pressure to increase, signaling the end of the treating operation. This minimizes proppant overdisplacement and provides for a fully packed fracture in the near wellbore region.

Assignee:
Exxon Production Research Co., Houston, Tex.
Patent Number(s):
US 4421167
OSTI ID:
6886466
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
BOUNDARY LAYERS
COMMINUTION
CONTROL
CONTROL EQUIPMENT
DENSITY
DESIGN
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
EQUIPMENT
FLOW REGULATORS
FLUIDS
FRACTURING
FRACTURING FLUIDS
HYDRAULIC FRACTURING
INJECTION WELLS
LAYERS
MATERIALS
NATURAL GAS WELLS
OIL WELLS
OPERATION
PHYSICAL PROPERTIES
PROPPING AGENTS
RECOVERY
RESERVOIR PRESSURE
SEALING MATERIALS
WELL PRESSURE
WELLS