Page 239 - Standard Handbook Petroleum Natural Gas Engineering VOLUME2

408 Reservoir Engineering

WELL SKETCH 6lllMA All JURVEIS AT TlND IWTERVALS
I. tz tr t4 t5 t6

h

Figure 5-128. Radioactive tracer survey in an injection well where water is
flowing behind the casing into another zone [221].

Deterrnlnation of lnltial Oil & Gas in Place

Initial Oil in Place
For undersaturated crude, the reservoir contains only connate water and oil
with their respective solution gas contents. The initial or original oil in place
can be estimated from the volumetric equation:

7,758V,$(Sm) - 7,758Ah$(l-S,)
N= - (5-125)
Boi Bm