US 2025/0163259 A1Published application

Eco-friendly carboxymethyl cellulose-based preformed particle gels for conformance control in oil and gas reservoirs

AssigneeQatar Foundation for Education, Science and Community Development

InventorsAhmed Ben Ali, Ahmed Hamza, Ibnelwaleed A. Hussein, Mohammed Saad, Abdulaziz Almakimi, Baojun Bai

Life of this patent

Estimating the term…

A polymer material comprising a crosslinked carboxymethyl cellulose and cationic polyacrylamide (“CMC/CPAM”) polymer.

Dependent claims

A polymer material comprising a crosslinked carboxymethyl cellulose and cationic polyacrylamide (“CMC/CPAM”) polymer.

Dependencies are inferred from the claim text.

C08F 251/02
Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof: on to cellulose or derivatives thereof
C08L 51/02
Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds ;…:…
C08F 265/10
Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined…
C09K 8/426
Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells: for plugging

From the US filing history. Foreign family members aren’t listed.

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US 2025/0163259 A1Published application

AssigneeQatar Foundation for Education, Science and Community Development

InventorsAhmed Ben Ali, Ahmed Hamza, Ibnelwaleed A. Hussein, Mohammed Saad, Abdulaziz Almakimi, Baojun Bai

Estimating the term…

A polymer material comprising a crosslinked carboxymethyl cellulose and cationic polyacrylamide (“CMC/CPAM”) polymer.

Dependent claims

A polymer material comprising a crosslinked carboxymethyl cellulose and cationic polyacrylamide (“CMC/CPAM”) polymer.

Dependencies are inferred from the claim text.

C08F 251/02
Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof: on to cellulose or derivatives thereof
C08L 51/02
Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds ;…:…
C08F 265/10
Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined…
C09K 8/426
Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells: for plugging