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Method of using a spacer for well control fluid

Patent ·
OSTI ID:6609822
;
A spacer comprising the water-in-oil emulsion portion of a shear-thickening well control fluid is used to separate drilling mud from the shear-thickening fluid in the drill pipe in the well bore to avoid premature thickening of the shear thickening fluid in the drill pipe. The shear-thickening well control fluid comprises a water-in-oil emulsion in which is dispersed granular particles of hydratable, water expandable clay.
Assignee:
Exxon Research and Engineering Co. Exxon Research Company
Patent Number(s):
US 4445576
OSTI ID:
6609822
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)
CLAYS
COLLOIDS
CONTROL EQUIPMENT
DISPERSIONS
DRILL PIPES
DRILLING EQUIPMENT
DRILLING FLUIDS
EMULSIONS
ENHANCED RECOVERY
EQUIPMENT
FLOW REGULATORS
FLUID INJECTION
FLUIDS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
NATURAL GAS WELLS
OIL WELLS
PARTICLES
PIPES
PLUGGING
PLUGGING AGENTS
POROSITY
RECOVERY
RESERVOIR ROCK
SHEAR
WELLS