Well cementing slurries containing fibers

Wells – Processes – Cementing – plugging or consolidating

Reexamination Certificate

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C106S644000, C106S724000

Reexamination Certificate

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10526679

ABSTRACT:
The problem of fiber or particle settling in well cement slurries is addressed by providing a fluid containing two fiber components of differing properties. Such a well treatment fluid, comprising a base fluid; a first fiber component that it substantially more dense than the base fluid; and a second fiber component that has a density close to that of the base fluid and is relatively flexible.

REFERENCES:
patent: 6230804 (2001-05-01), Mueller et al.
patent: 6458198 (2002-10-01), Baret et al.
patent: 2004/0247846 (2004-12-01), Uzawa et al.
patent: 0721050 (1996-07-01), None
patent: 1284248 (2003-02-01), None
patent: 2778402 (1999-11-01), None
patent: 2784095 (2000-04-01), None
patent: 2799458 (2001-04-01), None
patent: WO 03/042494 (2003-05-01), None
XP002279316, May 26, 1983, Central Glass C, 1-10.
Chemical Abstracts, Sep. 1, 1998, Hayashi Riysuke, 1-10.

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