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The pressure response to rate variation is recorded in the:
same well where the flowrate is varying
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and in this case is called pressure Self-Pulse Test (SPT)
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or in the offset wells
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and in this case is called
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pressure Pulse Interference Test (PCT)
Workflow
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| 1 | Designing flowrate variation pulse sequence for disturbing wells (also called generators) based on the field primary data |
| 2 | Field operations on suspending the downhole gauges (if PDG is not available) |
| 3 | Performing flowrate variations according to the PCT design |
| 4 | Retrieving the downhole gauges |
| 5 | Downloading the data from the downhole and surface gauges |
| 6 | Primary data processing (gauge syncronization and filtering) |
| 7 | Implementing pressure pulse-code decomposition (PCD) |
| 8 | Recognising the PTA type-library diffusion models for decomposed DTR/CTR and type-curve fitting them with analytical and/or numerical pressure diffusion models |
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