AI Article Synopsis
- The text outlines the measurement principles and design of a new electromagnetic flowmeter (EMF) for downhole use.
- It details dynamic experiments conducted on two EMFs in oil-water two-phase flow, revealing that the maximum absolute errors are below 5% for specific flow rates and conditions.
- Finally, onsite experiments in high-water-cut oil wells are conducted, and the analysis highlights the EMF's effectiveness in measuring downhole flow.
Article Abstract
First, the measuring principle, the weight function, and the magnetic field of the novel downhole inserted electromagnetic flowmeter (EMF) are described. Second, the basic design of the EMF is described. Third, the dynamic experiments of two EMFs in oil-water two-phase flow are carried out. The experimental errors are analyzed in detail. The experimental results show that the maximum absolute value of the full-scale errors is better than 5%, the total flowrate is 5-60 m³/d, and the water-cut is higher than 60%. The maximum absolute value of the full-scale errors is better than 7%, the total flowrate is 2-60 m³/d, and the water-cut is higher than 70%. Finally, onsite experiments in high-water-cut oil-producing wells are conducted, and the possible reasons for the errors in the onsite experiments are analyzed. It is found that the EMF can provide an effective technology for measuring downhole oil-water two-phase flow.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5087491 | PMC |
| http://dx.doi.org/10.3390/s16101703 | DOI Listing |
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