American Oil and Gas Reporter - September 2015 - 86

SpecialReport: Reservoir Characterization
FIGURE 4
A)
Cross-Line 516

B)
Cross-Line 516

4A is bandwidth extension amplitude volume, highlighting the No. 303 well and porosity
zone. Wiggle trace overlay is from amplitude volume. 4B is SOM classification volume,
highlighting the No. 303 well and porosity zone. Topology was 10-by-10 neurons with a
30-millisecond window above and below the zone of interest. Wiggle trace overlay is
from amplitude volume.

component. With a five-by-five neuron
matrix, Figure 3 shows the classification
results from this SOM evaluation on the
same north-south line as Figure 2, and it
identifies clearly several hydrocarbon
contacts in the form of flat spots. These
hydrocarbon contacts are confirmed by
the well control.
Figure 3B defines three apparent flat
spots that are further isolated in Figure
3C, which displays these features with
two neurons. The gas/oil contact in the
field was very difficult to see in the
original seismic data, but is well defined
and can be mapped from this SOM analysis.
The oil/water contact in the field is
represented by a flat spot that defines the
overall base of the hydrocarbon reservoir.
Hints of this oil/water contact were interpreted from the original amplitude
data, but the second SOM classification
provides important information to clearly
define the areal extent of reservoir.
Downdip of the field is another apparent
flat spot event that is undrilled and is
similar to the flat spots identified in the
field. Based on SOM evaluations A and
B in the field, which reveal similar known
attenuation and flat spot results, respectively, there is a high probability this undrilled feature contains hydrocarbons.
West Texas Case Study
Unlike the Gulf of Mexico case study,
attribute analyses on the Fasken Ranch
in the Permian Basin involved using a

86 THE AMERICAN OIL & GAS REPORTER

"recipe" of seismic attributes, based on
their ability to sort out fluid properties,
porosity trends and hydrocarbon sensitivities. Rather than use principal component analysis to see which attributes
had the greatest variation in the data, tar-

geted use of specific attributes helped
solve an issue regarding conventional
porosity zones within an unconventional
depositional environment in the Spraberry
and Wolfcamp formations.
The Fasken Ranch is located in portions
of Andrews, Ector, Martin and Midland
counties, Tx. The approximately 165,000acre property, which consists of surface
and mineral rights, is held privately. This
case study shows the SOM analysis results
for one well, the Fasken Oil and Ranch
No. 303 FEE BI, which was drilled as a
straight hole to a depth of 11,195 feet.
The well was drilled through the Spraberry
and Wolfcamp formations, and encountered a porosity zone from 8,245 to 8,270
feet measured depth.
This enabled the well to produce more
than four times the normal cumulative
production found in a typical vertical
Spraberry well. The problem was being
able to find that zone using conventional
attribute analysis in the seismic data.
Figure 4A depicts cross-line 516, which
trends north-south and shows the intersection with well 303. The porosity zone
is highlighted with a red circle.
Seven attributes were used in the
neural analysis: attenuation, BE14-100

FIGURE 5

2-D COLORMAP - MAPSHADEDARK_10X10

No. 303 Well
Combination of neurons that
represents porosity zone in No. 303 well

This SOM classification volume in 3-D view shows the combination of a neural "cluster"
that represents the porosity zone seen in the No. 303 well, but not seen in surrounding
wells.



American Oil and Gas Reporter - September 2015

Table of Contents for the Digital Edition of American Oil and Gas Reporter - September 2015

Contents
American Oil and Gas Reporter - September 2015 - Cover1
American Oil and Gas Reporter - September 2015 - Cover2
American Oil and Gas Reporter - September 2015 - 3
American Oil and Gas Reporter - September 2015 - 4
American Oil and Gas Reporter - September 2015 - Contents
American Oil and Gas Reporter - September 2015 - 6
American Oil and Gas Reporter - September 2015 - 7
American Oil and Gas Reporter - September 2015 - 8
American Oil and Gas Reporter - September 2015 - 9
American Oil and Gas Reporter - September 2015 - 10
American Oil and Gas Reporter - September 2015 - 11
American Oil and Gas Reporter - September 2015 - 12
American Oil and Gas Reporter - September 2015 - 13
American Oil and Gas Reporter - September 2015 - 14
American Oil and Gas Reporter - September 2015 - 15
American Oil and Gas Reporter - September 2015 - 16
American Oil and Gas Reporter - September 2015 - 17
American Oil and Gas Reporter - September 2015 - 18
American Oil and Gas Reporter - September 2015 - 19
American Oil and Gas Reporter - September 2015 - 20
American Oil and Gas Reporter - September 2015 - 21
American Oil and Gas Reporter - September 2015 - 22
American Oil and Gas Reporter - September 2015 - 23
American Oil and Gas Reporter - September 2015 - 24
American Oil and Gas Reporter - September 2015 - 25
American Oil and Gas Reporter - September 2015 - 26
American Oil and Gas Reporter - September 2015 - 27
American Oil and Gas Reporter - September 2015 - 28
American Oil and Gas Reporter - September 2015 - 29
American Oil and Gas Reporter - September 2015 - 30
American Oil and Gas Reporter - September 2015 - 31
American Oil and Gas Reporter - September 2015 - 32
American Oil and Gas Reporter - September 2015 - 33
American Oil and Gas Reporter - September 2015 - 34
American Oil and Gas Reporter - September 2015 - 35
American Oil and Gas Reporter - September 2015 - 36
American Oil and Gas Reporter - September 2015 - 37
American Oil and Gas Reporter - September 2015 - 38
American Oil and Gas Reporter - September 2015 - 39
American Oil and Gas Reporter - September 2015 - 40
American Oil and Gas Reporter - September 2015 - 41
American Oil and Gas Reporter - September 2015 - 42
American Oil and Gas Reporter - September 2015 - 43
American Oil and Gas Reporter - September 2015 - 44
American Oil and Gas Reporter - September 2015 - 45
American Oil and Gas Reporter - September 2015 - 46
American Oil and Gas Reporter - September 2015 - 47
American Oil and Gas Reporter - September 2015 - 48
American Oil and Gas Reporter - September 2015 - 49
American Oil and Gas Reporter - September 2015 - 50
American Oil and Gas Reporter - September 2015 - 51
American Oil and Gas Reporter - September 2015 - 52
American Oil and Gas Reporter - September 2015 - 53
American Oil and Gas Reporter - September 2015 - 54
American Oil and Gas Reporter - September 2015 - 55
American Oil and Gas Reporter - September 2015 - 56
American Oil and Gas Reporter - September 2015 - 57
American Oil and Gas Reporter - September 2015 - 58
American Oil and Gas Reporter - September 2015 - 59
American Oil and Gas Reporter - September 2015 - 60
American Oil and Gas Reporter - September 2015 - 61
American Oil and Gas Reporter - September 2015 - 62
American Oil and Gas Reporter - September 2015 - 63
American Oil and Gas Reporter - September 2015 - 64
American Oil and Gas Reporter - September 2015 - 65
American Oil and Gas Reporter - September 2015 - 66
American Oil and Gas Reporter - September 2015 - 67
American Oil and Gas Reporter - September 2015 - 68
American Oil and Gas Reporter - September 2015 - 69
American Oil and Gas Reporter - September 2015 - 70
American Oil and Gas Reporter - September 2015 - 71
American Oil and Gas Reporter - September 2015 - 72
American Oil and Gas Reporter - September 2015 - 73
American Oil and Gas Reporter - September 2015 - 74
American Oil and Gas Reporter - September 2015 - 75
American Oil and Gas Reporter - September 2015 - 76
American Oil and Gas Reporter - September 2015 - 77
American Oil and Gas Reporter - September 2015 - 78
American Oil and Gas Reporter - September 2015 - 79
American Oil and Gas Reporter - September 2015 - 80
American Oil and Gas Reporter - September 2015 - 81
American Oil and Gas Reporter - September 2015 - 82
American Oil and Gas Reporter - September 2015 - 83
American Oil and Gas Reporter - September 2015 - 84
American Oil and Gas Reporter - September 2015 - 85
American Oil and Gas Reporter - September 2015 - 86
American Oil and Gas Reporter - September 2015 - 87
American Oil and Gas Reporter - September 2015 - 88
American Oil and Gas Reporter - September 2015 - 89
American Oil and Gas Reporter - September 2015 - 90
American Oil and Gas Reporter - September 2015 - 91
American Oil and Gas Reporter - September 2015 - 92
American Oil and Gas Reporter - September 2015 - 93
American Oil and Gas Reporter - September 2015 - 94
American Oil and Gas Reporter - September 2015 - 95
American Oil and Gas Reporter - September 2015 - 96
American Oil and Gas Reporter - September 2015 - 97
American Oil and Gas Reporter - September 2015 - 98
American Oil and Gas Reporter - September 2015 - 99
American Oil and Gas Reporter - September 2015 - 100
American Oil and Gas Reporter - September 2015 - 101
American Oil and Gas Reporter - September 2015 - 102
American Oil and Gas Reporter - September 2015 - 103
American Oil and Gas Reporter - September 2015 - 104
American Oil and Gas Reporter - September 2015 - 105
American Oil and Gas Reporter - September 2015 - 106
American Oil and Gas Reporter - September 2015 - 107
American Oil and Gas Reporter - September 2015 - 108
American Oil and Gas Reporter - September 2015 - 109
American Oil and Gas Reporter - September 2015 - 110
American Oil and Gas Reporter - September 2015 - 111
American Oil and Gas Reporter - September 2015 - 112
American Oil and Gas Reporter - September 2015 - 113
American Oil and Gas Reporter - September 2015 - 114
American Oil and Gas Reporter - September 2015 - 115
American Oil and Gas Reporter - September 2015 - 116
American Oil and Gas Reporter - September 2015 - 117
American Oil and Gas Reporter - September 2015 - 118
American Oil and Gas Reporter - September 2015 - 119
American Oil and Gas Reporter - September 2015 - 120
American Oil and Gas Reporter - September 2015 - 121
American Oil and Gas Reporter - September 2015 - 122
American Oil and Gas Reporter - September 2015 - 123
American Oil and Gas Reporter - September 2015 - 124
American Oil and Gas Reporter - September 2015 - 125
American Oil and Gas Reporter - September 2015 - 126
American Oil and Gas Reporter - September 2015 - 127
American Oil and Gas Reporter - September 2015 - 128
American Oil and Gas Reporter - September 2015 - 129
American Oil and Gas Reporter - September 2015 - 130
American Oil and Gas Reporter - September 2015 - 131
American Oil and Gas Reporter - September 2015 - 132
American Oil and Gas Reporter - September 2015 - 133
American Oil and Gas Reporter - September 2015 - 134
American Oil and Gas Reporter - September 2015 - 135
American Oil and Gas Reporter - September 2015 - 136
American Oil and Gas Reporter - September 2015 - 137
American Oil and Gas Reporter - September 2015 - 138
American Oil and Gas Reporter - September 2015 - 139
American Oil and Gas Reporter - September 2015 - 140
American Oil and Gas Reporter - September 2015 - 141
American Oil and Gas Reporter - September 2015 - 142
American Oil and Gas Reporter - September 2015 - 143
American Oil and Gas Reporter - September 2015 - 144
American Oil and Gas Reporter - September 2015 - 145
American Oil and Gas Reporter - September 2015 - 146
American Oil and Gas Reporter - September 2015 - 147
American Oil and Gas Reporter - September 2015 - 148
American Oil and Gas Reporter - September 2015 - 149
American Oil and Gas Reporter - September 2015 - 150
American Oil and Gas Reporter - September 2015 - 151
American Oil and Gas Reporter - September 2015 - 152
American Oil and Gas Reporter - September 2015 - 153
American Oil and Gas Reporter - September 2015 - 154
American Oil and Gas Reporter - September 2015 - 155
American Oil and Gas Reporter - September 2015 - 156
American Oil and Gas Reporter - September 2015 - 157
American Oil and Gas Reporter - September 2015 - 158
American Oil and Gas Reporter - September 2015 - 159
American Oil and Gas Reporter - September 2015 - 160
American Oil and Gas Reporter - September 2015 - 161
American Oil and Gas Reporter - September 2015 - 162
American Oil and Gas Reporter - September 2015 - 163
American Oil and Gas Reporter - September 2015 - 164
American Oil and Gas Reporter - September 2015 - 165
American Oil and Gas Reporter - September 2015 - 166
American Oil and Gas Reporter - September 2015 - 167
American Oil and Gas Reporter - September 2015 - 168
American Oil and Gas Reporter - September 2015 - 169
American Oil and Gas Reporter - September 2015 - 170
American Oil and Gas Reporter - September 2015 - 171
American Oil and Gas Reporter - September 2015 - 172
American Oil and Gas Reporter - September 2015 - 173
American Oil and Gas Reporter - September 2015 - 174
American Oil and Gas Reporter - September 2015 - 175
American Oil and Gas Reporter - September 2015 - 176
American Oil and Gas Reporter - September 2015 - 177
American Oil and Gas Reporter - September 2015 - 178
American Oil and Gas Reporter - September 2015 - Cover3
American Oil and Gas Reporter - September 2015 - Cover4
http://staging.nxtbook.com/nxtbooks/aogr/201702/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201701/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201612/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201611/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201610/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/pbios2016_programguide/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201609/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201608/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201607/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201606/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201605/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201604/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201603/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201602/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201601/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201512/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201511/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201510/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201509/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201508/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201507/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201506/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201505/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201504/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201503/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201502/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201501/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201412/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201411/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201410/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201409/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/pbios2014_programguide/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201408/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201407/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201406/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201405/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201404/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201403/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201402/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201401/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201312/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201311/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201310/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201309/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201308/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201307/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201306/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201305/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201304/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201303/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201302/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201301/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201212/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201211/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201210/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201209/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/2012_pbios/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201208/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201207/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201206/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201205/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201204/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201203/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201202/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201201/stage.php
http://staging.nxtbook.com/nxtbooks/demo/aogr_clone/stage.php
http://staging.nxtbook.com/nxtbooks/aogr/201112/stage.php
https://www.nxtbookmedia.com