公开(公告)号：US20240125636A1

公开(公告)日：2024-04-18

申请号：US18546420

申请日：2022-03-25

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Mathieu FRADET ,  Luis Phillipe C.F. TOSI ,  Mina RAIS-ZADEH ,  Kristopher V SHERRILL ,  Darius MODARRESS ,  Pavel SVITEK ,  Katayoon MODARRESS RUBY

IPC: G01F1/7086 ,  E21B47/01 ,  E21B47/113 ,  G01F1/74

CPC classification number: G01F1/7086 ,  E21B47/01 ,  E21B47/114 ,  G01F1/74

Abstract: Systems and methods for measuring flow velocity of a fluid mixture in a lateral section of an oil/gas/water well with a dual beam laser doppler velocimetry (LVD) based flow sensor are presented. According to one aspect, the flow velocity is measured by tracking movement of particles and/or features in the fluid mixture while traversing an interference pattern generated by the intersection of two separate coherent beams that are perpendicular to a direction of the flow. Flow velocity is derived based on a time it takes the particles to traverse consecutive fringes of the interference pattern as indicated by intensity peaks detected at the photodetector. The LDV-based flow sensor may be rotatable to measure flow velocities at different angular positions of a pipe in a lateral section of an oil well, rotation provided by rotation of an element of a mobile vessel to which the flow sensor is rigidly coupled.