Century Exploration (UK) Limited.Charbella Energy LimitedElixir Petroleum Limited
Granby Enterprises Limited
Relinquishment report forUKCS 21st Round Licence P1105
(Block 21/6b)
Figures
15th September 2006
Figure 1. 21/6b Palaeocene Stratigraphy
Sequences
T20
T32
T31
T35
T34T33
= significant gamma log peaks
T40
T45T50
Glamis / Andrew Tuff
Sequence scheme after BP with modifications
Modified after Ahmadi et al (2003)
21/6a-3
Top Tor formation
Approx location of
21/6b-6
1063 1147.39
10631151.49
T501063 1147.39
10631151.49
2145
2246.86
T50, Balder Fm1147.39 36101151.49 3621
T50, Balder Fm3610 13303621
1342
Andrew Sandstone
Glamis Member (Andrew Tuff)
Andrew Sandstone
Lower Balmoral Sandstone
Upper Balmoral Sandstone
Balder Fm Balder Fm Balder Fm
21/ 06- 2Scale : 1:2000
De
pth
1050
1100
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
2000
2050
2100
2150
TM
D :
31
99
.94
mGR
0 120API
Lit
ho
log
y(G
en
era
lis
ed
)
DT140 40µs/ft
21/ 06a- 3Scale : 1:2000
De
pth
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
2000
2050
2100
2150
2200
2250
TM
D :
31
89
.58
m
GR0 120API
Lit
ho
log
y(G
en
era
lis
ed
)
DT140 40µs/ft
21/ 06b- 4Scale : 1:2000
De
pth
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
2000
2050
2100
2150
2200
TM
D :
33
72
.92
m
GR0 120API
Lit
ho
log
y(G
en
era
lis
ed
)
DT140 40µs/ftS
eq
uen
ce
T50
T45
T40
T35
T34
T33
T3
2-T
31
T20
21/ 06b- 6Scale : 1:2000
Dep
th
1100
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
DTP1140 40ms/ft
Corrected gamma0 100GAPI
LithologyFo
rmat
ion
Do
rno
ch
Fm
Lis
ta F
mM
au
reen
Fm
Tor
Fm
Me
mb
er
Up
per
Balm
ora
lS
an
dsto
ne
Lo
wer
Balm
ora
l S
an
dsto
ne
Gla
mis
Mem
ber
(A
nd
rew
Tu
ff)
An
dre
w S
an
dsto
ne M
em
ber
Fo
rmat
ion
Balder Fm
Do
rno
ch
Fm
Lis
ta F
mM
au
reen
Fm
EkofiskFm
Tor
Fm
Me
mb
er
UpperBalmoral
Sandstone
Lo
wer
Balm
ora
lS
an
dsto
ne
Gla
mis
Mem
ber
(Andre
w T
uff
)
An
dre
w S
an
dsto
ne
Mem
ber
20/ 05d- 7
20/ 09- 3 20/ 10- 1
20/ 10- 2
20/ 10a- 3ST
20/ 10b- 420/ 10b- 5
21/ 06- 2
21/ 06a- 3
21/ 06b- 421/ 06b- 5
21/ 06b- 6
21/ 07- 1
0 1000 2000 3000 4000 5000
metres
1063 1147.39
10631151.49
1063 1147.39
10631151.49
Tor Fm2145
2246.86
1147.39 36101151.49 3621
3610 13303621
1342
T32
T45
T33
T32
Maureen Fm, T20
T45
T34Lista Fm, T35Lista Fm, T35
T40
Figure 2. northwest – southeast well correlation for the Palaeocene
Oil in Balder T50
Horizons
Oil shows
Channel
21/6a-321/6-220/10-1
20/10-1 21/6-2
21/6a-3
21/6b-4
21/6b-5
21/6-1
21/6-1 21/6a-3 21/6b-4 21/6b-5
Channel
Miocene
T50 Balder
T34
T35
Andrew Tuff
Tor
Base Chalk
KCF
Smith Bank
Figure 3. Regional seismic correlation with wells
21/6b-6
21/6b-6
NS
T34 Channel
TWT on top T34
Main graben fault
compaction faulting
N
NS
S
T 50
T 34
Maureen
Figure 4. T34 channel seismic character
Approx location of
21/6b-6
21/6b block boundary
20/5c-4
21/6-2
20/5d-7
21/6a-3
Timeslices showing the development of the channel (whitedashed arrow) from Block 20/5 (encountered by wells20/5c-4 and ?20/5d-7), through Block 20/10 into Block 21/6(encountered by 21/6b-6 but not 21/6-2, 21/6a-3 & 21/6b-4)
1432 mS
1480 mS
1624 mS
21/6b-4
Figure 5. T34 channel timeslice mapping
21/6b-6
contourinterval
10m
IsochorebetweenT34 and
Andrew Tuff
Depth map on top T34
Main T34 (LowerBalmoral) channel
Channel ‘tail’
Figure 6. Depth map on top T34 sequence (Lower Balmoral Sst)
T34 target
WN S
E
21/6b-6 drilling locationavoiding main graben faultTD at top Andrew Tuff
T34Depth
(ML case)
T34 target
Velocity pull-down?
Seismic amplitude anomalies
Gas cloud orprocessing effect?
Probable multiple effects
Figure 7. Marquis prospect drilling location
Figure 8. 21/6b-6 CPI for the Lower Palaeocene section
21/06b- 6
GR0 150 (GAPI)
GRC0 175 (API)
Dep
th (ft)
4900
4950
5000
5050
5100
5150
5200
5250
5300
5350
5400
5450
5500
5550
5600
5650
5700
5750
5800
5850
5900
5950
6000
6050
6100
R25A0.2 20 (ohmm)
R55A0.2 20 (ohmm)
R25P0.2 20 (ohmm)
R55P0.2 20 (ohmm)
DTP1240 40 (us/f)
swtotal0 1
swfree0 1 (frac)
PHISRH0.5 0 (frac)
PHIE0.5 0
SW*POR1 0
PHIE1 0
VSHGR0 1
T35
T34
T32
Upper Balmoral Sst Mbr
Andrew/Glamis Tuff
Base Balmoral Sst Mbr
Lower Balmoral Sst
Base Channel
Upper Balmoral Sst Mbr
Lower Balmoral Sst Mbr
Base T34 channel
Base Bamoral Sst Member
Top T32
Top Andrew/Glamis Tuff
Marquis Channel Target