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1. (US20040182577) Well completion spacer fluids containing fibers and methods

Office : United States of America
Application Number: 10740189 Application Date: 18.12.2003
Publication Number: 20040182577 Publication Date: 23.09.2004
Grant Number: 7143827 Grant Date: 05.12.2006
Publication Kind : B2
IPC:
E21B 37/00
C09K 8/40
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
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
CPC:
C09K 8/601
C09K 8/04
C09K 8/40
C09K 8/424
Y10S 507/928
Applicants: Halliburton Energy Services, Inc.
Inventors: Chatterji Jiten
Gray Dennis W.
King Bobby J.
Dennis, Jr. John L.
Agents: Roddy Craig W.
Baker Botts L.L.P.
Priority Data: 10393965 21.03.2003 US
10740189 18.12.2003 US
Title: (EN) Well completion spacer fluids containing fibers and methods
Abstract:
(EN)

Well completion spacer fluids containing fibers and methods of using the 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 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 spacer fluid are displaced from the well bore with the second fluid. The spacer fluid comprises water, a weighting material, a dispersing agent, a suspending agent and friction reducer and fibers. The spacer fluid containing the components mentioned above is preferably also foamed.