WATER DETECTION AND 3-PHASE FRACTION MEASUREMENT SYSTEMS

摘要

Methods and apparatus enable monitoring a hydrocarbon well for water with in a flow stream of the well. A water detector includes a light source for e mitting into a flow stream infrared light that includes a water absorbent wa velength band. A detector detects attenuation of the water absorbent wavelen gth band upon the infrared radiation passing through at least a portion of t he flow stream. The water detector outputs a presence of water and/or a phas e fraction or quantification of water as determined based on the attenuation . Detecting attenuation of a substantially transmissive wavelength band with respect to water simultaneously with detection of the attenuation of the wa ter absorbent wavelength band can enable correction for non-wavelength depen dent attenuation.