国家/地区 中国（3） 美国（2）
IPC部 C（6）
IPC大类 E21（6）
IPC小类 E21B（4） C09K（3） C04B（2）
C08K（2）
IPC C04B028/04（2） C08K003/04（2） C09K008/508（2）
C09K008/512（2）
发明人
公开年 2023（6）
申请年 2023（6）
专利权人

Hydraulic fracturing for oil and gas recovery improvement, involves formulating hydraulic fracturing fluid comprising liquid solvent, one surfactant, liquid phase proppant-forming compound, one curing agent, injecting hydraulic fracturing fluid into wellbore.

GONG W, YIN C, LIU F, YU S, BAI L, HUANG J, LIN L

Synthesisizing nickel-manganese-sulfur decorated reduced graphene oxide nanocomposite for ultra-fast photocatalytic degradation of organic dyes, involves adding manganese chloride tetrahydrate into stirring solution and treating homogeneous suspension with cetyltrimethyl ammonium bromide.

SASIPRABA T, GOVINDHASAMY M

Advanced deep hole liquid explosion fracturing structure useful for downlink comprehensive digging hard rock tunnel, has bag injecting pipe whose end is set on outer side of blast hole, and bag hole sealing device filled with special blasting hole sealing grouting material.

YANG S, TONG X, GAO A, YANG J, XU G

Liquid bridge plug useful for segmented water plugging in horizontal-wells or layered water plugging in vertical-wells, comprises e.g. methacrylamide, galactomannanase, polyacrylamide, N, N-methylenebisacrylamide, thiourea, graphene oxide, and sodium chloride.

TONG J

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

Prefabricated building block used in isolation body for underground sealing, has cuboid with honeycomb skeleton structure, and pores of honeycomb skeleton structure are filled with graphite polystyrene foam particles, where honeycomb skeleton structure includes silicate cement, fiber and graphene.

YU J, SHI J, WU W