Temperature data has been used in the evaluation of producing wells for many years and is still a core measurement for the production engineer however complimenting temperature information with the unique attributes of true acoustic data gives the user a much more powerful decision support tool.
Silixa leads the way in its unique combined approach that employs both temperature and acoustic data in production profiling.
Our proprietary computational models are able to differentiate between phases and quantify flow using acoustic and thermal properties of the produced fluids taking the multiphase fluid dynamics into account.
Temperature of the flowing fluid in the well is a function of a number of parameters such as the intrinsic thermal properties of the fluids, well components, the geothermal temperature, dimensions of the wellbore, the rate at which the fluid are produced and the duration since the start of production. Our DTS modelling capabilities allow us to accurately model the thermodynamic processes and predict flow rates of each phase produced.
The intelligent Distributed Acoustic Sensor (iDAS) captures the true acoustic field (amplitude, frequency, and phase) at all points along the well.
Advanced acoustic processing, unique to Silixa, can be used to determine the speed of sound in the production fluid at different depths; this information indicates in-situ fluid type and can be used to resolve hold-up in two-phase flow. Additionally, the Doppler shift between the speed of sound modes travelling up and down in the well make it possible to measure the fluid flow velocity and hence flow rates for a given tubing size.