Historical records on oil, gas, water flowrates, results of formation pressure surveys and flowing pressure (THP or BHP).
The flowrate data is normally available as daily or monthly records of surface flowrates
:LaTeX Math Inline body \{ q_W, \, q_O, \, q_G, \, q_{WI}, q_{GI} \}
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| oil production | gas production | water production | water injection | gas injection |
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| Fig. 1. Synthetic case of Production/injection History with multiple PDGs |
See Also
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Petroleum Industry / Upstream / Production / Subsurface Production