. CARMOPOLIS OILFIELD (BRAZIL)

In the pattern shown in Fig. 55, well CP-804 was injected with 55.5 GBq of

HTO.

image113 Подпись: tracer-sample'q water-producer m . . tracer-inj Подпись: (27)

The response curves are shown in Fig. 56 where the tracer concentrations are represented in a relative way as tracer daily fractional recovery (TDFR) according to Eq. (27).

This way of expressing concentration is used in several other examples.

image116

Days after injection

Figure 57 shows that the tracer is moving mainly in the direction of well CP-1091.

image117