In order to perform a proper planning process, a variety of detailed reservoir and well information should be considered. These are listed below.

Parameters to be provided by the oil company:

• Well pattern (e. g. inverted five-spot, line drive, irregular pattern, etc., map of the lateral distribution is preferable);

• Well types (vertical, horizontal, undulating, complex, etc.);

• Distance from injector well(s) i to producer well(s) p (rip (m));

• Whether it is possible to inject different tracer in each perforated zone or producing layer (j) and height of each layer (hj (m));

• Height of the combined pay zones (Zhj (m));

• Permeability (or water relative permeability) in each layer, j (kj);

• Average porosity of reservoir rock (Ф);

• Reservoir pressure (for gas tracers) (p (bar));

• Reservoir temperature (T (K));

• Estimated water saturation (Sw);

• Estimated oil saturation (So);

• Salinity (main salt components and their concentration (g/mL));

• Reservoir water pH;

• Special gas composition (e. g. H2S) (to plan analytical strategy/method);

• Special oil composition (API);

• Estimated or calculated water cut (for planning sampling strategy);

• Injection water rate (m3/d).

Parameter to be provided by the analytical laboratory:

• Lower limit of detection for each type of tracer t (LDt) and associated required sample volume.