Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2011-04-26
2011-04-26
Suchfield, George (Department: 3676)
Wells
Processes
Placing fluid into the formation
C166S090100, C166S177500, C166S308200, C366S164100, C366S164600, C507S904000
Reexamination Certificate
active
07931088
ABSTRACT:
A method is provided for treating at least a portion of a well. The method includes the steps of: (a) simultaneously introducing into a mixer at least: (i) a first stream comprising water; (ii) a second stream comprising a dry, hydratable, viscosity-increasing agent for water, wherein the second stream is substantially free of water; and (iii) a third stream comprising a non-hydratable, insoluble particulate; wherein at least the first and second streams are not mixed prior to being introduced into the mixer; (b) mixing the first, second, and third streams in the mixer to form a pumpable mixture, wherein: (i) the mixer creates at least a sufficiently-high shear rate to disperse the viscosity-increasing agent and the insoluble particulate in the pumpable mixture; and (ii) the pumpable mixture has or is capable of developing a substantially-higher viscosity than the viscosity of the first stream; and (c) introducing a treatment fluid comprising the pumpable mixture into a wellbore.
REFERENCES:
patent: 5190374 (1993-03-01), Harms et al.
patent: 7048432 (2006-05-01), Phillippi et al.
patent: 7104328 (2006-09-01), Phillippi et al.
patent: 7401973 (2008-07-01), Lott
patent: 2004/0218464 (2004-11-01), Arribau et al.
patent: 2006/0028914 (2006-02-01), Phillippi et al.
Phillippi Max L.
Slabaugh Billy
Slabaugh, legal representative Tommy
Stegemoeller Calvin L.
Booth Albanesi & Schroeder LLC
Halliburton Energy Service,s Inc.
Kent Robert A.
Suchfield George
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