E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 49/08 (2006.01) E21B 43/40 (2006.01) G01N 1/14 (2006.01) G01N 9/36 (2006.01) G01N 33/18 (2006.01)
Patent
CA 2052651
ABSTRACT OF THE DISCLOSURE An apparatus for testing water quality for subsurface injection that provides for samples of infinite volume to be passed over a membrane filter at a constant pressure. The apparatus uses a positive displacement pump drawing suction on the water source and discharging to a membrane filter. Between the pump discharge and the filter is an oil/water separation vessel to allow for sampling of well production fluids before oil removal if necessary. Fitted to the oil separation vessel is an adjustable pressure regulator, also known as a back pressure regulator, for maintaining constant pressure over the filter. The filter discharge water is collected in a volume calibrated vessel. The vessel is connected to load cells, and a data collection device records weight as a function of time. By measuring the water density, a time/volume curve can be automatically plotted by the data collection device. This apparatus would find application in performing a variety of field tests, however, National Association of Corrosion Engineers (NACE) Standard Test TM0173-84 is the most likely application for the apparatus.
Peterson Mitchell F.
Womack Irving F. II
Chevron Research And Technology Company
Peterson Mitchell F.
Sim & Mcburney
Womack Irving F. II
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