Estimation of axisymmetric spatial distributions of permeability and porosity from pressure-transient data acquired with in situ permanent sensors

The Design of Data Transmission for New Intelligent Layered Water Injection Regulating and Testing System

“…At present, there have many problems in layered water injection technology, such as miscellaneous tripping process, hard adjusting water nozzle, testing zonal pressure with large work and low efficiency, difficulty achieving high accurate injection etc. This paper puts forward a layered water injection technology for oilfield which is a intelligent regulating and testing system, with the purpose of no tripping, adjustable water nozzle, testing and injecting simultaneous, to improve these problems [1]. This system will real-time transmits downhole's parameters, voltage, temperature, pressure and the rate of flow to surface control system, and realizes the functions of real-time detecting as well as transmitting, real-time monitoring flow rate, real-time recording pressure and continuously adjustable water nozzle etc.…”