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1. US6668927 - Well completion foamed spacer fluids and methods

Office United States of America
Application Number 10393965
Application Date 21.03.2003
Publication Number 6668927
Publication Date 30.12.2003
Grant Number 6668927
Grant Date 30.12.2003
Publication Kind B1
IPC
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
37
Methods or apparatus for cleaning boreholes or wells
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
33
Sealing or packing boreholes or wells
10
in the borehole
13
Methods or devices for cementing, for plugging holes, crevices, or the like
14
for cementing casings into boreholes
16
using plugs for isolating cement charge; Plugs therefor
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
40
Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
E21B 37/00
E21B 33/16
C09K 8/40
CPC
C09K 8/40
Y10S 507/928
Applicants Halliburton Energy Services, Inc.
Inventors Chatterji, Jiten
Griffith, James E.
King, Bobby J.
Agents Roddy, Craig W.
Dougherty, Jr., C. Clark
Priority Data 10393965 21.03.2003 US
Title
(EN) Well completion foamed spacer fluids and methods
Abstract
(EN)

Well completion foamed spacer fluids and methods of using the foamed spacer fluids are provided. A method of the invention for displacing a first fluid from a well bore with an incompatible second fluid comprises the following steps. A foamed spacer fluid is placed between the first and second fluids to separate the first and second fluids and to remove the first fluid from the walls of the well bore. Thereafter, the first fluid and the foamed spacer fluid are displaced from the well bore with the second fluid.

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