国家/地区
IPC部 C（2） E（2）
IPC大类 C09（2）
IPC小类 C09K（2） E21B（2）
IPC C09K008/508（2）
发明人
公开年 2023（2）
申请年 2023（2）
专利权人

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