| 摘要 |
Methods and apparatus for sensing fluid flow within a conduit using a Distributed Acoustic Sensing (DAS) system. The DAS system may lower production costs and may offer some technical advantages over fiber Bragg grating (FBG)-based flowmeters such as auxiliary measurement of strain from the wellhead down to the flowmeter. The DAS system may also simplify multiplexing multiple flowmeters on a single fiber.
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