国家/地区 中国（26）
IPC部 C（26）
IPC大类 C09（26）
IPC小类 C09D（15） C09K（9） E21B（9）
E04F（8） E02B（4） C04B（3）
E04B（3） E04G（3） B05D（2）
C09J（2） C23C（2） E02D（2）
IPC C09D007/61（9） C09D007/62（5） C09D007/65（4）
C09D163/00（4） C09D005/08（3） C09D175/14（3）
C09D183/04（3） E21B033/13（3） E21B043/22（3）
B05D001/36（2） B05D007/24（2） C04B041/65（2）
C09D001/00（2） C09D005/24（2） C09D007/63（2）
发明人 CHEN H（3） LIU J（3） LIU Y（3）
WANG L（3） WANG Y（3） YANG L（3）
ZHANG Y（3） LI Q（2） LI X（2）
LI Z（2） LIU X（2） MO D（2）
OUYANG Q（2） SHE X（2） SHEN X（2）
公开年 2021（13） 2022（13）
申请年 2021（26）
专利权人 PETROCHINA C.（3）

Gas channeling prevention system for gas flooding oil recovery process, includes foaming agent, polyelectrolyte, foam enhancer, oxidizing agent, chelating agent, and the balance is water.

XU H, CHEN L, REN J, SUN T, ZHANG B, LIU J, HUANG K, SHEN J, CHEN D

Pod-type degradable temporary plugging ball useful in temporary plugging treatment of oil and gas wells in fracturing system, comprises degradable outer shell (comprising e.g. polymerized product of glycolide, lactide, polybutylene succinate prepolymer) and inner core.

LI H, ZHANG Y, SHANG L, HUANG B, LIU J, WANG Y, YANG X, JIANG Q

New gemini surfactant used for used as a particle stabilized emulsion flooding system, which is used in tertiary oil recovery, and as a particle stabilized emulsion flooding system.

YANG S, HUANG J, LIAN L, WANG L, HU W, SONG W, ZHOU W, ZHOU X, HU J, LV W, TIAN M

High-adhesion concrete interface bonding, comprises e.g. spraying graphene/graphene oxide dispersion on old concrete surface to obtain pre-bonding surface, drying, tightly bonding the old concrete g with bonding mortar layer, and curing.

CHEN J, CHEN H, WANG A, YANG F

Anti-seepage structure of sewage pipeline comprises pipelines spliced with each other and two adjacent sections of pipeline interface is arranged outside anti-seepage belt and includes waterproof mortar sealing layer and waterproof sleeve.

YUAN Y, HUANG G, XIANG S, ZHENG X, LUO J, LI X, DUAN C

Method of utilizing modified hydrogel to assist in supporting unconsolidated hydrate reservoir fractures, involves preparing modified high-swelling hydrogel, pressurizing target layer and injecting with pre-fluid to form artificial main fracture, adding hydrogel to sand-carrying liquid and stirring.

LIU C, FAN X, YAN L, LIU S, WANG H, ZHANG Y, ZHOU D, LIU X

Processing titanium alloy space sampling drill comprises e.g. spraying graphene dispersion liquid to titanium alloy drill bit subjected to nitriding treatment, and drying titanium alloy drill bit sprayed to obtain nitride-graphene composite coating on surface of titanium alloy drill bit.

WANG W, MENG D, FU Z, KANG J, WANG H, YUE W, WANG Q, GAO W, SHE D

Skid-proof anticorrosive coating for marine engineering equipment, has steel structure base material whose outer surface from inside to outside is graphene heavy anti-corrosion primer layer, particle layer and asparagine polyurea finishing coat layer.

LI Z, LU T, XU C, YANG Y

Construction method for fair-faced concrete protective agent for exterior wall finish, by providing fair-faced concrete protective agent, performing base repair treatment, grinding, cleaning wall surface, performing color adjustment, and painting by applying aqueous primer, and inorganic coloring.

CAO Y, LIU X, WANG D, DU H, HAN T, YANG L, LI J, SUN Y

Protective coating for repairing metal surface damage, is set on the metal material substrate damage area surface, comprising a resin material layer from inside to outside in turn set on surface of the metal material substrate damage area.

WANG L, ZHAO Q, WU Y, ZHAO W