Environmental Engineering Reference
In-Depth Information
3.10.2
Lloydminster Heavy Oil Belt (Alberta, Canada)
DCEOR Field Demonstration
The Lloydminster Heavy Oil Belt DCEOR Field demonstrations, including
breaks for data analyses and laboratory testing, lasted over 2 years. As with
the Santa Maria Basin Field Trial, the Lloydminster Field operator had dif-
ficulty with fines production.
The Lloydminster Heavy Oil Belt demonstration reservoir was an 11m
(36.3 ft) thick unconsolidated, braided stream sand at a depth of approxi-
mately 517 m (1,706 ft) BGS, with a 1.5m (4.95 ft) shale break 3m (9.9 ft)
below the top. The well used for this DCEOR demonstration appeared to
have missed the main channel sands of the field and, if possible, was an
even worse performer than the well used for the Santa Maria Basin dem-
onstration. Baseline production was approximately 2.32 bbl/day (heavy)
oil with a 73% BS&W cut, on pump.
The Lloydminster Heavy Oil Belt demonstration evaluated cyclic
DCEOR, as shown in figure 3.23. Production rates rose with each power
cycle.
Table 3.5 summarizes the Lloydminster Heavy Oil Belt field demon-
stration. Average DCEOR production was 5.78 Bbl/day with a 2.8 % water
Figure 3.23
Lloydminster Heavy Oil Belt (Alberta, Canada) DCEOR field demonstration,
showing the effects of cyclic power application (after Wittle et al., 2008c). Production
declines indicate “power off ” periods.
Search WWH ::
Custom Search