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• Designing flowrate variation pulse sequence for disturbing wells (also called generators)  based on the field primary data 
• Field operations on suspending the downhole gauges (if PDG is not available)
• Performing flowrate variations according to the PCT design
• Retrieving the downhole gauges
• Downloading the data from the downhole and surface gauges
• Primary data processing (gauge syncronization and filtering)
• Implementing pressure pulse-code decomposition (PCD)
• Recognising the PTA type-library diffusion model for models for decomposed DTR/CTR and type-curve fitting them with analytical and/or numerical pressure diffusion models  models  

Data Processing

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In case of harmonic pressure pulsations and sufficiently long pressure-rate delay and a simple diffusion model (single-bed homogeneous reservoir without boundary) the pressure response can be approximated by analytical model. In this case the pressure data at receiving wells are being detrended and then matched to analytical model.

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In this case the actual pressure responses should be decoded from pressure data records at receiving well using specialised pressure pulse-code decomposition algorithms and then decomposed DTR/CTR is recongised PTA type-library diffusion models and matched by diffusion modelmodels.

This type of tests is called Pressure Pulse-Code Test but this approach is equally applicable to simple periodic pulsations. 

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