CPC E21B 47/07 (2020.05) [E21B 36/04 (2013.01); E21B 43/08 (2013.01); E21B 47/10 (2013.01); E21B 47/113 (2020.05); G01F 1/68 (2013.01); G01F 1/7084 (2013.01)] | 6 Claims |
1. An apparatus for determining properties of a fluid flowing into an inner pipe in a well, the apparatus comprising:
an inflow channel arranged along an outside of the inner pipe and within an outer pipe that is arranged radially outward of the inner pipe, and having a first opening in fluid connection with an outside of the inner pipe and a second, radial opening in fluid connection with an inside of the inner pipe so that said inflow channel provides a path between the first opening and the second opening from the outside of the inner pipe to the inside of the inner pipe, wherein the inflow channel is configured to allow the fluid to flow from the outside of the inner pipe through the first opening and to the second opening, and then through the second opening to the inside of the inner pipe,
a heater arranged to heat at least part of the fluid in the inflow channel,
a temperature sensor arranged to measure a temperature of the fluid in the inflow channel,
wherein the heater is an electric heating cable having a longitudinal axis along a length of the cable, and the longitudinal axis is arranged parallel to a longitudinal direction of the inflow channel,
wherein the electric heating cable and the temperature sensor are both embedded within a metallic medium, and
wherein said metallic medium resides in a recess in a wall of said outer pipe, and said wall is arranged to prevent outflow from the inflow channel in radial directions.
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