Invention Grant
- Patent Title: Nuclear magnetic resonance 1H and 13C multiphase flow measurements, estimating phase selected flow rates from velocity distributions, volume fractions, and mean velocity
- Patent Title (中): 核磁共振1H和13C多相流测量，从速度分布，体积分数和平均速度估计相选择的流速
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Application No.: US12907707Application Date: 2010-10-19
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Publication No.: US08729893B2Publication Date: 2014-05-20
- Inventor: Lilong Li , Songhua Chen , Carl M. Edwards , Joo Tim Ong
- Applicant: Lilong Li , Songhua Chen , Carl M. Edwards , Joo Tim Ong
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Cantor Colburn LLP
- Main IPC: G01R33/563
- IPC: G01R33/563 ; G01N24/08 ; G01V3/14 ; G01R33/44
Abstract:
A method and apparatus for estimating a flow rate of a phase of a multiphase fluid is disclosed. A first velocity distribution is obtained for a first set of nuclei in the fluid from a Nuclear Magnetic Resonance (NMR) signal received for the fluid in response to a first NMR excitation signal. A second velocity distribution is obtained for a second set of nuclei in the fluid from an NMR signal received for the fluid in response to a second NMR excitation signal. A velocity of the phase is estimated from the first velocity distribution and the second velocity distribution. The flow rate of the phase is estimated using the estimated velocity of the phase and an estimated volume fraction of the phase.
Public/Granted literature
- US20120092006A1 Multiphase Flow Measurement Using Nuclear Magnetic Resonance Public/Granted day:2012-04-19
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