国家/地区 美国（5） 世界知识产权组织（4） 印度（3） 俄罗斯（2）
IPC部 B（8）
IPC大类 B82（8）
IPC小类 B82Y（7） C08K（5） E21B（5）
C01B（3） C08J（3） C09K（3）
B82B（2） C08L（2）
IPC B82Y030/00（7） C08K003/04（5） C08K009/04（3）
B82B001/00（2） C01B031/04（2） C01B032/194（2）
C08J003/24（2） C08K003/22（2） C09K008/508（2）
C09K008/512（2） C09K008/516（2） E21B021/00（2）
发明人 ALMOHSIN A（2） ALSHARAEH E（2） KRISHNAN M R（2）
公开年 2015（2） 2022（2）
申请年 2015（2） 
专利权人 SAUDI ARABIA.（2） UNIV ALFAISA.（2）

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

Ultra high performance prestressed nano-concrete girder for construction of precast bridge, attains higher tensile strength, compressive strength, bonding capacity between intermolecular arrangements changed by graphene and nano-silica, wear resistance, shock resistance and corrosion resistance.

POL C B, KALE T

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

Composite for preparing article comprises disentangled ultra-high molecular weight polyethylene, functionalized multiwalled carbon nanotubes, and nanofiller selected from graphene oxide, reduced graphene oxide, and graphite.

TRIPATHI S N, PATADE A P, GANDHAM S S R, SHUKLA D K, BONDA S, PATIL Y P, BAGUI M, MATHUR A B, JASRA R V

Nanoporous carbon material grafted with graphene having e.g. specified carbon content, heteroatom content, inorganic impurities content, pore volume, helium density, packing density and zero charge point used as a supercapacitor electrode.

MENENDEZ DIAZ J A, ARENILLAS DE LA PUENTE A, MARTIN GULLON I, RAMOS FERNANDEZ G, DIAZ J A, DE LA PUENTE A, GULLON I, FERNANDEZ G

Cavity power section used for mud motor, comprises rotor and stator comprising metal outer tubular and graphene-enhanced elastomeric stator inner liner in which elastomeric material of liner comprises graphene particles and rubber.

SICILIAN J A, SICILIAN Y A

Sponge like nanomaterial obtained from graphene oxide by sonicating graphene oxide in deionized water solution and freezing, used e.g. as supercapacitor, in construction of lithium battery and separating oil from water.

CHIU G, YU A

Oilfield element e.g. tube seals useful in oilfield apparatus for exploring, testing or producing hydrocarbons, is made of a composite comprising matrix material, and several functionalized graphene sheets dispersed in the polymeric matrix.

VER M M