Patent ID: 11952889
Assignee: INVISENSING.IO
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A method of improving operation of a wellbore, said wellbore including a drill pipe in which a fluid circulates and an optical fiber positioned outside the drill pipe, the circulation of said fluid being controlled at least in part by at least one of an outlet valve or an injection valve, said method including the steps of:
generating two digital orthogonal backscatter signals from at least one light signal injected into said optical fiber,
calculating values of fluid circulation parameters, including an optical signal intensity ratio as a function of distance, from the two digital orthogonal backscatter signals, and
controlling opening of at least one of said at least one outlet valve or injection valve depending on distributed pressure values calculated from the two digital orthogonal backscatter signals, and on said fluid circulation parameters.