Cementing slurry and method of designing a formulation

Details Cementing slurry and method of designing a formulation Cementing slurry and method of designing a formulation

1997-10-03

2000-11-28

Tucker, Philip

Earth boring, well treating, and oil field chemistry

Well treating

Contains inorganic component other than water or clay

507906, 106816, C09K 300, C04B 700

Patent

active

061535621

ABSTRACT:
The present invention provides a cementing composition for an oil or analogous well, essentially constituted by a solid fraction suspended in a liquid medium. The solid fraction is constituted by a coarse fraction with a packing volume fraction .PHI..sub.1 which, according to the invention, is maximised, and a fines fraction x with a packing volume fraction .PHI..sub.2 which is less than or equal to the volume fraction x.sub.0 such that ##EQU1## The invention also provides a method of maximising the value of .PHI..sub.1. The invention can minimise fluid loss whatever the materials selected for a cementing composition.

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patent: 5489574 (1996-02-01), Miano et al.
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patent: 5569324 (1996-10-01), Totten et al.
patent: 5571318 (1996-11-01), Griffith et al.
patent: 5641815 (1997-06-01), Fehlmann
Database WPI, Week 9519, Derwent Publications Ltd., London, GB; An 95-145613, XP002033057 & SU 1 837 056 A (Town Equip Res Des Inst) *abstract*.

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