Biostratigraphy in integrated basin studies

1
Biostratigraphy in integrated basin studies

• Area North Sea
• Geological setting Regional basin deep water
• Depositional system Submarine fans mounds
• Age Paleogene (Paleocene-Eocene)
• Data Seismic well data

2
Biostratigraphy in integrated basin studies

• Seismic data response, interference, vertical
  and horizontal resolution
• Seismic to well correlation
• 2D vs 3D seismic
• Seismic examples

3
Seismic response
r2v2 - r1v1 r2v2 r1v1
RC
4
(No Transcript)
5
Interference
6
Vertical resolution
(Brown 1999)
7
Vertical resolution
(Brown 1999)
8
Vertical resolution
100 Hz
Wavelength increases
with depth Frequency decreases
Reduced vertical resolution
67 Hz
40 Hz
f v l l/4
z 100 Hz 2 km/s 20 m 5 m
250 m 40 Hz 4 km/s 100 m
25 m 2250 m
9
Vertical resolution
(Brown 1999)
10
Horizontal resolution
690 m
2500 m
25 m
11
2D vs 3D seismic
12
Horizontal resolution
690 m
2500 m
25 m
(Brown 1999)
13
(Brown 1999)
14
3D seismic
15
(Cecchi et al. 2001)
16
Late Paleocene
(Faleide et al. 2002)
17
(Faleide et al. 2002)
18
(Faleide et al. 2002)
19
(Spencer et al. 1999)
20
(Faleide et al. 2002)
21
(Den Hartog Jager et al. 1993)
22
(Vining et al. 1993)
23
(Vining et al. 1993)
24
(Vining et al. 1993)
25
(Cecchi et al. 2001)
26
(Newton Flanagan 1993)
27
(Den Hartog Jager et al. 1993)
28
(Vining et al. 1993)
29
(TGS-Nopec)
30
(Cecchi et al. 2001)
31
Heimdal
(Skibeli 198?)
32
Heimdal
(Skibeli 198?)
33
Heimdal
(Skibeli 198?)
34
SP
Sonic
Seismic
35
(Brown 1999)
36
(Brown 1999)
37
(Brown 1999)
38
(Brown 1999)
39
Siri
(Cecchi et al. 2001)
40
(Cecchi et al. 2001)
41
Siri seismic
(Statoil)
42
Siri seismic
(Statoil)
(Cecchi et al. 2001)