国家/地区 美国（2）
IPC部 B（2） C（2）
IPC大类 C08（2）
IPC小类 C08K（2）
IPC C08K009/04（2）
发明人
公开年 2023（2）
申请年
专利权人

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

Fabricating acetylene-benzoxazine functionalized particles comprises adding particles to alkaline solution, stirring solution to cause particles to acquire hydroxyl groups producing activated particles, adding acetylene benzoxazine into solvent solution, and drying product.

IFTIME G, WEI J, CHINTAPALLI M