Read the article again, its states it was a mixture of OIL and WATER. Here Ill help you out, We are still swabbing completion fluid as of this writing and the results of the well are inconclusive at this point as to whether the well will establish natural flow and what the volumetric contribution of OIL and water will be.
Conclusion,- they stated the "fluid" is a combination of OIL AND WATER.
Volumetric Flow- Definition - When any form of liquid is measured it is called "Fluid"
In physics and engineering, in particular fluid dynamics, the volumetric flow rate (also known as volume flow rate, rate of fluid flow, or volume velocity) is the volume of fluid which passes per unit time; usually it is represented by the symbol Q (sometimes V?). The SI unit is cubic metres per second (m3/s). Another unit used is standard cubic centimetres per minute (SCCM). In hydrometry, it is known as discharge.
In US customary units and imperial units, volumetric flow rate is often expressed as cubic feet per second (ft3/s) or gallons per minute (either US or imperial definitions).
Volumetric flow rate should not be confused with volumetric flux, as defined by Darcy's law and represented by the symbol q, with units of m3/(m2·s), that is, m·s-1. The integration of a flux over an area gives the volumetric flow rate.
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