American Oil and Gas Reporter - May 2015 - 79

SpecialReport: Study In Geophysics
Data Harvesting
A key seismic surveying goal is to
deliver data to processing as quickly and
reliably as possible. But with the move
away from cabled surface systems in
North America, achieving this goal has
been a challenge, says Ellis, because
nodal systems typically allow access to
the seismic data only when the field
recording units are retrieved physically.
However, fast data retrieval is possible.
"One of our clients collected the data,
uplinked to a satellite, downlinked to its
Houston processing center, did some
initial processing, and then bounced it
back to the field within a couple minutes,"
describes Ellis.
This approach enables the people controlling the frac to make decisions in
very close to real time, even in a cablefree environment. "At the very least, the
data could influence the next stage and
conceivably even the current stage," reflects Ellis.
Look, too, for more companies to
equip all their acquisition-related vehicles

with wireless data harvesting, he ventures.
"High-speed data harvesters can be placed
in any vehicle, right down to the vehicle
that drives the crew to the field," Ellis
advises.
He says the driver turns it on before
leaving camp, and the system automatically harvests data throughout the day.
Harvesters have a range of up to one
kilometer, and typically are downloaded
at the end of the day.
"Nodal-based surveys are faster to
completion than cabled surveys, but the
time savings has been lost to organizing
the data at the end of acquisition," says
Ellis. "Opportunistic harvesting kickstarts processing and quality control,
shortening the time to deliver the final
dataset to the interpreters."
Geophysical Forensics
Reprocessing older seismic data can
provide significant new insight into regional trends, says Mark Gresko, director
of geology and geophysics at ION Geophysical. Modern processing techniques
often add greater detail and more accurate

placement of subsurface features.
Gresko, who has a Ph.D. in geophysics
from the Virginia Polytechnic Institute
and State University, says these techniques
do a better job of removing multiples
and attenuating noise. Key algorithms
for prestack time and depth migrations
improve image quality and resolution. A
wide band process brings back frequencies
that previously were suppressed, he says.
Together, he suggests, these new techniques bring more detail and reliability
to the data.
One challenge in properly reprocessing
older data is understanding the conditions
and real positioning of the original survey,
which Gresko refers to as geophysical
forensics. Survey design and acquisition
have a strong effect on the data collected,
he notes.
Another obstacle in reprocessing older
datasets is obtaining the data themselves.
"Often, these surveys were stored on tape
media," points out Gresko. "Media degrades, can be problematic to access, and
sometimes simply are lost."
On top of that, he says the original

ARTICLE

REPRINTS
Can you use professional reprints designed
in four-color custom presentations?
Order a quality reproduction of an article in
an organized format with the addition of
your advertisement and/or company logo.
We can deliver from 1,000 to 10,000 copies, or more!

For more information or
to order reprints contact:

Nora Mota
nmota@aogr.com
1-800-847-8301

The marketing tool that simply makes sense!
North America * 1-800-847-8301
International * 011-316-788-6271

w w w. a o g r. c o m
MAY 2015 79



American Oil and Gas Reporter - May 2015

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

Contents
American Oil and Gas Reporter - May 2015 - Cover1
American Oil and Gas Reporter - May 2015 - Cover2
American Oil and Gas Reporter - May 2015 - Contents
American Oil and Gas Reporter - May 2015 - 4
American Oil and Gas Reporter - May 2015 - 5
American Oil and Gas Reporter - May 2015 - 6
American Oil and Gas Reporter - May 2015 - 7
American Oil and Gas Reporter - May 2015 - 8
American Oil and Gas Reporter - May 2015 - 9
American Oil and Gas Reporter - May 2015 - 10
American Oil and Gas Reporter - May 2015 - 11
American Oil and Gas Reporter - May 2015 - 12
American Oil and Gas Reporter - May 2015 - 13
American Oil and Gas Reporter - May 2015 - 14
American Oil and Gas Reporter - May 2015 - 15
American Oil and Gas Reporter - May 2015 - 16
American Oil and Gas Reporter - May 2015 - 17
American Oil and Gas Reporter - May 2015 - 18
American Oil and Gas Reporter - May 2015 - 19
American Oil and Gas Reporter - May 2015 - 20
American Oil and Gas Reporter - May 2015 - 21
American Oil and Gas Reporter - May 2015 - 22
American Oil and Gas Reporter - May 2015 - 23
American Oil and Gas Reporter - May 2015 - 24
American Oil and Gas Reporter - May 2015 - 25
American Oil and Gas Reporter - May 2015 - 26
American Oil and Gas Reporter - May 2015 - 27
American Oil and Gas Reporter - May 2015 - 28
American Oil and Gas Reporter - May 2015 - 29
American Oil and Gas Reporter - May 2015 - 30
American Oil and Gas Reporter - May 2015 - 31
American Oil and Gas Reporter - May 2015 - 32
American Oil and Gas Reporter - May 2015 - 33
American Oil and Gas Reporter - May 2015 - 34
American Oil and Gas Reporter - May 2015 - 35
American Oil and Gas Reporter - May 2015 - 36
American Oil and Gas Reporter - May 2015 - 37
American Oil and Gas Reporter - May 2015 - 38
American Oil and Gas Reporter - May 2015 - 39
American Oil and Gas Reporter - May 2015 - 40
American Oil and Gas Reporter - May 2015 - 41
American Oil and Gas Reporter - May 2015 - 42
American Oil and Gas Reporter - May 2015 - 43
American Oil and Gas Reporter - May 2015 - 44
American Oil and Gas Reporter - May 2015 - 45
American Oil and Gas Reporter - May 2015 - 46
American Oil and Gas Reporter - May 2015 - 47
American Oil and Gas Reporter - May 2015 - 48
American Oil and Gas Reporter - May 2015 - 49
American Oil and Gas Reporter - May 2015 - 50
American Oil and Gas Reporter - May 2015 - 51
American Oil and Gas Reporter - May 2015 - 52
American Oil and Gas Reporter - May 2015 - 53
American Oil and Gas Reporter - May 2015 - 54
American Oil and Gas Reporter - May 2015 - 55
American Oil and Gas Reporter - May 2015 - 56
American Oil and Gas Reporter - May 2015 - 57
American Oil and Gas Reporter - May 2015 - 58
American Oil and Gas Reporter - May 2015 - 59
American Oil and Gas Reporter - May 2015 - 60
American Oil and Gas Reporter - May 2015 - 61
American Oil and Gas Reporter - May 2015 - 62
American Oil and Gas Reporter - May 2015 - 63
American Oil and Gas Reporter - May 2015 - 64
American Oil and Gas Reporter - May 2015 - 65
American Oil and Gas Reporter - May 2015 - 66
American Oil and Gas Reporter - May 2015 - 67
American Oil and Gas Reporter - May 2015 - 68
American Oil and Gas Reporter - May 2015 - 69
American Oil and Gas Reporter - May 2015 - 70
American Oil and Gas Reporter - May 2015 - 71
American Oil and Gas Reporter - May 2015 - 72
American Oil and Gas Reporter - May 2015 - 73
American Oil and Gas Reporter - May 2015 - 74
American Oil and Gas Reporter - May 2015 - 75
American Oil and Gas Reporter - May 2015 - 76
American Oil and Gas Reporter - May 2015 - 77
American Oil and Gas Reporter - May 2015 - 78
American Oil and Gas Reporter - May 2015 - 79
American Oil and Gas Reporter - May 2015 - 80
American Oil and Gas Reporter - May 2015 - 81
American Oil and Gas Reporter - May 2015 - 82
American Oil and Gas Reporter - May 2015 - 83
American Oil and Gas Reporter - May 2015 - 84
American Oil and Gas Reporter - May 2015 - 85
American Oil and Gas Reporter - May 2015 - 86
American Oil and Gas Reporter - May 2015 - 87
American Oil and Gas Reporter - May 2015 - 88
American Oil and Gas Reporter - May 2015 - 89
American Oil and Gas Reporter - May 2015 - 90
American Oil and Gas Reporter - May 2015 - 91
American Oil and Gas Reporter - May 2015 - 92
American Oil and Gas Reporter - May 2015 - 93
American Oil and Gas Reporter - May 2015 - 94
American Oil and Gas Reporter - May 2015 - 95
American Oil and Gas Reporter - May 2015 - 96
American Oil and Gas Reporter - May 2015 - 97
American Oil and Gas Reporter - May 2015 - 98
American Oil and Gas Reporter - May 2015 - 99
American Oil and Gas Reporter - May 2015 - 100
American Oil and Gas Reporter - May 2015 - 101
American Oil and Gas Reporter - May 2015 - 102
American Oil and Gas Reporter - May 2015 - 103
American Oil and Gas Reporter - May 2015 - 104
American Oil and Gas Reporter - May 2015 - 105
American Oil and Gas Reporter - May 2015 - 106
American Oil and Gas Reporter - May 2015 - 107
American Oil and Gas Reporter - May 2015 - 108
American Oil and Gas Reporter - May 2015 - 109
American Oil and Gas Reporter - May 2015 - 110
American Oil and Gas Reporter - May 2015 - 111
American Oil and Gas Reporter - May 2015 - 112
American Oil and Gas Reporter - May 2015 - 113
American Oil and Gas Reporter - May 2015 - 114
American Oil and Gas Reporter - May 2015 - 115
American Oil and Gas Reporter - May 2015 - 116
American Oil and Gas Reporter - May 2015 - 117
American Oil and Gas Reporter - May 2015 - 118
American Oil and Gas Reporter - May 2015 - 119
American Oil and Gas Reporter - May 2015 - 120
American Oil and Gas Reporter - May 2015 - 121
American Oil and Gas Reporter - May 2015 - 122
American Oil and Gas Reporter - May 2015 - 123
American Oil and Gas Reporter - May 2015 - 124
American Oil and Gas Reporter - May 2015 - 125
American Oil and Gas Reporter - May 2015 - 126
American Oil and Gas Reporter - May 2015 - 127
American Oil and Gas Reporter - May 2015 - 128
American Oil and Gas Reporter - May 2015 - 129
American Oil and Gas Reporter - May 2015 - 130
American Oil and Gas Reporter - May 2015 - 131
American Oil and Gas Reporter - May 2015 - 132
American Oil and Gas Reporter - May 2015 - 133
American Oil and Gas Reporter - May 2015 - 134
American Oil and Gas Reporter - May 2015 - 135
American Oil and Gas Reporter - May 2015 - 136
American Oil and Gas Reporter - May 2015 - 137
American Oil and Gas Reporter - May 2015 - 138
American Oil and Gas Reporter - May 2015 - 139
American Oil and Gas Reporter - May 2015 - 140
American Oil and Gas Reporter - May 2015 - 141
American Oil and Gas Reporter - May 2015 - 142
American Oil and Gas Reporter - May 2015 - 143
American Oil and Gas Reporter - May 2015 - 144
American Oil and Gas Reporter - May 2015 - 145
American Oil and Gas Reporter - May 2015 - 146
American Oil and Gas Reporter - May 2015 - 147
American Oil and Gas Reporter - May 2015 - 148
American Oil and Gas Reporter - May 2015 - 149
American Oil and Gas Reporter - May 2015 - 150
American Oil and Gas Reporter - May 2015 - 151
American Oil and Gas Reporter - May 2015 - 152
American Oil and Gas Reporter - May 2015 - 153
American Oil and Gas Reporter - May 2015 - 154
American Oil and Gas Reporter - May 2015 - 155
American Oil and Gas Reporter - May 2015 - 156
American Oil and Gas Reporter - May 2015 - 157
American Oil and Gas Reporter - May 2015 - 158
American Oil and Gas Reporter - May 2015 - 159
American Oil and Gas Reporter - May 2015 - 160
American Oil and Gas Reporter - May 2015 - 161
American Oil and Gas Reporter - May 2015 - 162
American Oil and Gas Reporter - May 2015 - Cover3
American Oil and Gas Reporter - May 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