Invention Grant
- Patent Title: Multi-frequency micro induction and electrode arrays combination for use with a downhole tool
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Application No.: US14964205Application Date: 2015-12-09
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Publication No.: US10401203B2Publication Date: 2019-09-03
- Inventor: Otto N. Fanini , Mohamed Daoud
- Applicant: Baker Hughes Incorporated
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Hogan Lovells US LLP
- Main IPC: G01F1/58
- IPC: G01F1/58 ; G01V3/20 ; G01V3/28 ; G01F1/74

Abstract:
A flowmeter for use in a borehole that includes a transmitter and receivers spaced axially away from the transmitter. Energizing the transmitter creates electrical field lines that extend between the transmitter and the receivers, and that pass through fluid flowing past the flowmeter. The magnitude of the electrical field lines at each of the receivers is measured, and varies in response to different types of fluid flowing past the flowmeter, and changes in phase of the fluid. Example transmitters and receivers include coils and electrodes. The transmitters and receivers can define elongate arrays, where the arrays are arranged parallel to, oblique, or perpendicular to an axis of the borehole. Multiple array orientations provide a radial cross sectional image of the flowing fluid. Thus not only can multi-phase flow be detected, but the type of flow regime can be identified.
Public/Granted literature
- US20170168188A1 Multi-Frequency Micro Induction and Electrode Arrays Combination for Use with a Downhole Tool Public/Granted day:2017-06-15
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