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Fig. 1. A sample of typical DTR (dash line) and CTR (circles) for a 2-well system presented on PTA type-library log-log plot. (pressure drop P in blue and log-derivative P' in red). One well is producing at unit-rate and the other one is shut-in. In this case, LTRs on both UTRs are the same because two wells are sharing the same reservoir volume. |
The source of UTRs are:
| Numerical pressure simulations | Numerical flow simulations | Deconvolution of long-term PDG data records | Pressure Interference Testing |
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