公开(公告)号：US11421527B2

公开(公告)日：2022-08-23

申请号：US16320817

申请日：2017-07-25

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Paul Frederick Cilgrim Dickenson ,  Gareth Lees ,  Peter Wait ,  Jakub Szypicyn ,  Colin Allan Wilson

IPC: E21B47/135 ,  E21B47/06 ,  G01H9/00 ,  G01D5/353 ,  E21B47/12 ,  G01K11/32 ,  G01V1/22 ,  E21B47/00

Abstract: A system and technique for obtaining two or more distributed measurements from an optical sensing fiber deployed along a desired measuring path are disclosed. Interrogating probes from two or more different distributed measuring systems are combined and launched into the sensing fiber. Backscattered light generated in response to the combined interrogating probes is separated into portions and each portion is provided to a respective distributed measuring instrument. In this manner, distributed measurements corresponding to different parameters of interest, such as temperature and pressure, along the measuring path can be measured simultaneously using the same sensing fiber.

公开(公告)号：US20190169985A1

公开(公告)日：2019-06-06

申请号：US16320817

申请日：2017-07-25

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Paul Frederick Cilgrim Dickenson ,  Gareth Lees ,  Peter Wait ,  Jakub Szypicyn ,  Colin Allan Wilson

IPC: E21B47/12 ,  G01H9/00 ,  E21B47/06 ,  G01D5/353

Abstract: A system and technique for obtaining two or more distributed measurements from an optical sensing fiber deployed along a desired measuring path are disclosed. Interrogating probes from two or more different distributed measuring systems are combined and launched into the sensing fiber. Backscattered light generated in response to the combined interrogating probes is separated into portions and each portion is provided to a respective distributed measuring instrument. In this manner, distributed measurements corresponding to different parameters of interest, such as temperature and pressure, along the measuring path can be measured simultaneously using the same sensing fiber.