Measuring well volumetric flow rate and wellbore pressure in one or few selected wells and analysing pressure-rate correlation.
One of the key areas of Well & Reservoir Surveillance and one of the Subsurface Production Disciplines.
The quantitative interpretation is based on pressure diffusion model.
There are different well tests classifications.
One way is to split well tests into two major categories:
The other way is to split well tests by data acquisition methodology into three categories:
Third way is to split well tests by number of wells involved:
Single-Well Tests | Multi-Well Tests |
|---|---|
PIST – Pressure Interference Step Test (as version of PTA) | |
PICT – Pressure Interference Pulse Test (as version of PTA) | |
| DST – Drill Stem Test | |
| WFT – Wireline Formation Test | |
| Drawdown Test (DD) (as version of PTA) | |
| Injection Test (INS) (as version of PTA) | |
| Build-up Test (BUS) (as version of PTA) | |
| Fall off Test (FOS) (as version of PTA) | |
MRST – Multirate Step Test (as version of PTA) | |
SPT – Self-Pulse Test (as version of PTA) |