What should the payzone thickness be incase of horizontal wells? Should we use MD or TVD?
in terms of Well test interpretation in Kappa Saphir?
Initially, consider the fact that horizontal wells boundary conditions could be different from the vertical ones, especially if you have a thin formation.
Secondly, I suggest you go with the MD. It makes more sense.
MD my dear colleagues. But remember a concept: the payzone thickness has a little more complex definition and it is function of your type of reservoir. Thinking for instances in tight-sandstones and oil-shales. Best wishes Sir. Mario
MD will give you the more representative flow length, however the assumption normally that the total well length is contributing to flow. unless there is a PLT survey combined with the pressure build-up, use the total measured depth.
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