国家/地区 美国（8） 世界知识产权组织（6）
IPC部 C（8） B（6） E（4）
IPC大类 C08（8）
IPC小类 C09K（8）
IPC C08K003/04（7） C09K008/512（5） C09K008/516（5）
C08K003/22（4） B82Y030/00（3） C09K008/508（3）
C09K008/80（3） E21B033/138（3） B29C035/18（2）
C08G059/50（2） C08J003/24（2） C08K003/11（2）
C08K009/04（2） C09K008/504（2） E21B021/00（2）
发明人 ALSHARAEH E（8） ALMOHSIN A（6） KRISHNAN M R（4）
BATAWEEL M A（3） LI W（3）
公开年 2021（5） 2022（2）
申请年 2020（5） 
专利权人 UNIV ALFAISAL（8）

Preparing polymer-sand nanocomposite lost circulation material for forming barrier to overcome lost circulation in hydrocarbon wellbore, involves combining cross-linker solution and sand particles; combining hydrogel polymer, organic cross-linker and salt; and combining polymer hydrogel.

KRISHNAN M R, ALSHARAEH E, ALMOHSIN A

Forming a barrier to overcome lost circulation in a subterranean formation involves injecting a polymer-sand nanocomposite into one or more lost circulation zones in the subterranean formation, and polymer-sand nanocomposite comprising sand mixed with a polymer hydrogel.

KRISHNAN M R, ALSHARAEH E, ALMOHSIN A

Forming barrier that is used for eliminating or reducing unwanted production of water in subterranean formation, involves injecting polymer-sand nanocomposite into one or more water producing fractures in subterranean formation.

BATAWEEL M A, ALSHARAEH E, ALMOHSIN A

Producing coated proppant for producing oil and gas, involves combining proppant particle with monomer solution of first and second monomer, cross-linking agent and initiator, polymerizing, mixing resin solution and curing resin solution.

KRISHNAN M R, ALSHARAEH E, LI W

Coated proppant for use in fracturing operations, comprises proppant particle, intermediate cross-linked terpolymer layer encapsulating proppant particle and outer resin layer encapsulating intermediate cross-linked terpolymer layer.

KRISHNAN M R, ALSHARAEH E, LI W

Preparing polymer-sand nanocomposite comprises applying surface polymerization to surface of sand particles by combining polymerization initiator dissolved in solvent with the sand particles to form precursor sand mixture.

BATAWEEL M A, ALSHARAEH E, ALMOHSIN A

Preparing polymer composite involves dispersing nanosheet filler within polymer matrix by dissolving monomer in water to form first solution, dispersing nanosheet filler in organic solvent in the presence of emulsifying agent.

MICHAEL F M, ALSHARAEH E, ALMOHSIN A

Coated particle used in hydraulic fracturing composition for treating subterranean formation, comprises particulate substrate, surface copolymer layer having copolymer of monomers e.g. styrene, carbonates, and acrylamides, and resin layer.

LI W, ALSHARAEH E, ALMOHSIN A, BATAWEEL M A