Monitoring of downhole parameters and chemical injection utilizing fiber optics

摘要

The present invention provides systems utilizing fiber optics for monitoring downhole parameters and the operation of systems for injection of treatment chemicals. In one system, fiber optics sensors are placed in the wellbore to make distributed measurements for determining the fluid parameters including temperature, pressure, fluid flow, fluid constituents and chemical properties. Optical spectrophotometric sensors are employed for monitoring chemical properties in the wellbore and, optionally, at the surface for chemical injection systems