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1. EA200701198 - HIGHLY BRANCHED POLYMERIC MATERIALS AS COATING ON WEIGHTING AGENTS

Office Eurasian Patent Organization
Application Number 200701198
Application Date 15.06.2007
Publication Number 200701198
Publication Date 28.04.2008
Grant Number 013347
Grant Date 30.04.2010
Publication Kind B1
IPC
C09K 8/03
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02Well-drilling compositions
03Specific additives for general use in well-drilling compositions
CPC
C09K 8/36
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02Well-drilling compositions
32Non-aqueous well-drilling compositions, e.g. oil-based
36Water-in-oil emulsions
C09K 8/03
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02Well-drilling compositions
03Specific additives for general use in well-drilling compositions
Applicants Эм-Ай Эл. Эл. Си. null
M-I LLC null
Inventors Боллард Дэвид Энтони
BALLARD David, Antony
Agents Медведев Валерий Николаевич
Medvedev Valery, N.
Priority Data 60/805,246 20.06.2006 US
Title
(EN) HIGHLY BRANCHED POLYMERIC MATERIALS AS COATING ON WEIGHTING AGENTS
(RU) ВЫСОКОРАЗВЕТВЛЕННЫЕ ПОЛИМЕРНЫЕ МАТЕРИАЛЫ В КАЧЕСТВЕ ПОКРЫТИЯ НА УТЯЖЕЛИТЕЛЯХ
Abstract
(EN)

A wellbore fluid having at least two phases, the wellbore fluid including a fluid phase; and a solid phase including a powdered solid material coated with a polymer, wherein the polymer is the reaction product of a polyesteramide and a crosslinking agent is disclosed.

(RU)

Изобретение относится к текучей среде, имеющей по меньшей мере две фазы, где текучая среда в скважине содержит текучую фазу и твердую фазу, включающую порошкообразный твердый материал, покрытый полимером, где полимер представляет собой продукт взаимодействия сложного полиэфирамида и сшивающего агента.

Also published as
NO20090271