Abstract: Embodiments described herein provide a thermal flux apparatus, forming a distributed temperature measurement system and comprising a plurality of temperature probe modules, each temperature probe module comprising a sensing element having an electrical resistance that varies with temperature; a data acquisition module comprising an analog-to-digital converter with an input electrically connectable to the plurality of temperature probe modules; and an electrical network comprising between 6 and 8 wires connecting each temperature probe module with the data acquisition module.

Abstract: A technique facilitates evaluation of a fluid, such as a fluid produced from a well. The technique utilizes a modular and mobile system for testing flows of fluid which may comprise mixtures of constituents, and for sampling fluids thereof. The multiphase sampling method includes flowing a multiphase fluid comprising an oil phase and a water phase through a first conduit, the oil phase and water phase at least partially separating in the first conduit, mixing together the oil phase and water phase to form a mixed bulk liquid phase by flowing the multiphase fluid through a flow mixer toward a second conduit downstream the flow mixer, sampling a portion of the mixed bulk liquid phase at location at or within the second conduit, wherein the sampled portion of the mixed bulk liquid phase has a water-to-liquid ratio (WLR) representative of the pre-mixed oil phase and water phase.

Abstract: A technique facilitates evaluation of a fluid, such as a fluid produced from a well. The technique utilizes a modular and mobile system for testing flows of fluid which may comprise mixtures of constituents, and for sampling fluids thereof. The multiphase sampling method includes flowing a multiphase fluid comprising an oil phase and a water phase through a first conduit, the oil phase and water phase at least partially separating in the first conduit, mixing together the oil phase and water phase to form a mixed bulk liquid phase by flowing the multiphase fluid through a flow mixer toward a second conduit downstream the flow mixer, sampling a portion of the mixed bulk liquid phase at location at or within the second conduit, wherein the sampled portion of the mixed bulk liquid phase has a water-to-liquid ratio (WLR) representative of the pre-mixed oil phase and water phase.

Abstract: Methods, systems, and devices for powering downhole tools with an electrochemical device are provided. A downhole power system includes an electrochemical device having an anode and a cathode. The power system includes a downhole tool electrically communicating with the electrochemical device to provide electrical power to the downhole tool. The electrochemical device is activated when immersed in a downhole fluid and inactive when not immersed in the downhole fluid, the downhole fluid functioning as an electrolyte.

Abstract: Methods, systems, and devices for powering downhole tools with an electrochemical device are provided. A downhole power system includes an electrochemical device having an anode and a cathode. The power system includes a downhole tool electrically communicating with the electrochemical device to provide electrical power to the downhole tool. The electrochemical device is activated when immersed in a downhole fluid and inactive when not immersed in the downhole fluid, the downhole fluid functioning as an electrolyte.