| 摘要 |
A method for sampling a fluid, as a multi-phase chemical product as liquid chemical tracers from a well in a field of wells comprising basically (1) injecting a sample of the liquid from the well through a plurality of valves, as solenoid valves on a plurality of liquid containers, and (2) controlling the well liquids responsive to a timing switch, as a stepping switch, through the valves into the liquid sample containers to be filled one after another, periodically, and consecutively from the well in a prearranged order for providing an improved method that is more accurate and more precise.
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