American Oil and Gas Reporter - August 2017 - 56

SpecialReport: Hydraulic Fracturing Technology
FIGURE 2
Fracture Treatment Plot (Eagle Ford Well using VFR Fluid)
10.00
120.00

Blender
Wellhead Pressure (psi)

Btm Prop Conc (ppg)
Discharge Rate FM (bpm)

8.000
96.00

10.00
120.00
8.000
96.00

Start 30/50 sand

Start 40/70 sand

6.000
72.00

6.000
72.00

4.000
48.00

4.000
48.00

100 mesh stages

2.000
24.00

98.3

139.8
Time (min)

ule for the wells completed with the VFR
fluid. A total of 532,500 pounds of proppant
was placed with no screenouts on any of
the stages. Friction reducer loading for
the first four stages was 0.5 gpt of VFR
fluid. During stage 7, when the 100-mesh
sand concentration reached 1.0 pound/gallon, the VFR concentration was increased
to 1.0 gpt, and systematically raised to
2.5 gpt throughout the remaining proppant
stages.
Figure 2 shows a fracturing treatment
plot during one of the stages. Several
large pressure fluctuations occurred during
the early portions of the job, indicating
additional perforation clusters breaking
down and/or additional fracture surface
area being created (both a core part of
the frac design strategy). For the remaining
portion of the treatment, pressure followed
a downward trend and then began to
slowly build, indicating stable fracture
geometry growth and fracture network
packing. Friction reducer concentration
was adjusted at several points during
later treatment stages to facilitate the desired placement strategy.
Figure 3 shows cumulative oil production normalized to lateral length for the
two wells. Both produced more oil after
30 days than other wells in the area under
similar managed-choke conditions. The
production results are encouraging and
align with the goal of reducing completion
costs while maintaining or increasing production rates. Since making the transition
to VFR fluid, Earthstone's Eagle Ford
completion costs in the Flatonia region
have been reduced by 35 percent, and it is
now using the system in other areas.
56 THE AMERICAN OIL & GAS REPORTER

181.3

222.7

0.00
0.0

Permian Basin Case Study
In the Permian, another operator selected VFR fluid for its versatility to facilitate any of the frac design requirements
in multiple reservoir targets in the
Delaware and Midland Basins. Significant
variations in formation characteristics
exist from well to well across both areas.
These variations, along with differences
in frac designs and objectives for the different reservoir targets, historically required the use of several fluid systems,
which complicated logistics and pumping

FIGURE 3
Fracture Treatment Plot (Flatonia Area VFR Wells versus Offsets)
8

Color by
Subset_Area

7

Flatonia Townsite
Hope 1
Hope 2
Matthews North

6

Avg (Cum Oil/Ft)

0.00
0.0 56.9

2.000
24.00

operations.
The lithology of the Delaware Wolfcamp is analogous to the Midland Wolfcamp, and is characterized by interbedded
shale and limestone. With more than 600
feet of potential target pay within the
Wolfcamp A and B formations, and significant lithology variations throughout
the target intervals, many scenarios exist
with regard to selecting lateral landing
points, target intervals for stimulation,
vertical and lateral offset distances, and
other considerations. In the Midland
Spraberry play, multiple targets also exist
over several hundred feet and similar
factors must be considered for well placement and completion design.
The frac design strategy varies by
area, but in smaller and more contained
formation sections, the goal is to obtain
a complex fracture network to maximize
reservoir contact. In areas of tighter well
spacing, the operator's objective is to
control fracture length growth to mitigate
the risk of "frac hits" and production interference with offset wells. In thick
reservoir sections, the main goal is to
stimulate as many layers as possible.
The VFR fluid was selected for its
flexibility to assist in achieving any of
these frac design strategies while ensuring
the placement of the designed amount of
proppant volume per foot of lateral. Low
friction reducer concentrations can be
used to create complexity, while higher

Matthews South
Murphy N
Richards N
Rumley 1
Rumley 2

5
4
3
2
1
0
0

10

20

30

40
50
Normalized Prod Day

60

70

80

90



Table of Contents for the Digital Edition of American Oil and Gas Reporter - August 2017

Contents
American Oil and Gas Reporter - August 2017 - 1
American Oil and Gas Reporter - August 2017 - 2
American Oil and Gas Reporter - August 2017 - 3
American Oil and Gas Reporter - August 2017 - Contents
American Oil and Gas Reporter - August 2017 - 5
American Oil and Gas Reporter - August 2017 - 6
American Oil and Gas Reporter - August 2017 - 7
American Oil and Gas Reporter - August 2017 - 8
American Oil and Gas Reporter - August 2017 - 9
American Oil and Gas Reporter - August 2017 - 10
American Oil and Gas Reporter - August 2017 - 11
American Oil and Gas Reporter - August 2017 - 12
American Oil and Gas Reporter - August 2017 - 13
American Oil and Gas Reporter - August 2017 - 14
American Oil and Gas Reporter - August 2017 - 15
American Oil and Gas Reporter - August 2017 - 16
American Oil and Gas Reporter - August 2017 - 17
American Oil and Gas Reporter - August 2017 - 18
American Oil and Gas Reporter - August 2017 - 19
American Oil and Gas Reporter - August 2017 - 20
American Oil and Gas Reporter - August 2017 - 21
American Oil and Gas Reporter - August 2017 - 22
American Oil and Gas Reporter - August 2017 - 23
American Oil and Gas Reporter - August 2017 - 24
American Oil and Gas Reporter - August 2017 - 25
American Oil and Gas Reporter - August 2017 - 26
American Oil and Gas Reporter - August 2017 - 27
American Oil and Gas Reporter - August 2017 - 28
American Oil and Gas Reporter - August 2017 - 29
American Oil and Gas Reporter - August 2017 - 30
American Oil and Gas Reporter - August 2017 - 31
American Oil and Gas Reporter - August 2017 - 32
American Oil and Gas Reporter - August 2017 - 33
American Oil and Gas Reporter - August 2017 - 34
American Oil and Gas Reporter - August 2017 - 35
American Oil and Gas Reporter - August 2017 - 36
American Oil and Gas Reporter - August 2017 - 37
American Oil and Gas Reporter - August 2017 - 38
American Oil and Gas Reporter - August 2017 - 39
American Oil and Gas Reporter - August 2017 - 40
American Oil and Gas Reporter - August 2017 - 41
American Oil and Gas Reporter - August 2017 - 42
American Oil and Gas Reporter - August 2017 - 43
American Oil and Gas Reporter - August 2017 - 44
American Oil and Gas Reporter - August 2017 - 45
American Oil and Gas Reporter - August 2017 - 46
American Oil and Gas Reporter - August 2017 - 47
American Oil and Gas Reporter - August 2017 - 48
American Oil and Gas Reporter - August 2017 - 49
American Oil and Gas Reporter - August 2017 - 50
American Oil and Gas Reporter - August 2017 - 51
American Oil and Gas Reporter - August 2017 - 52
American Oil and Gas Reporter - August 2017 - 53
American Oil and Gas Reporter - August 2017 - 54
American Oil and Gas Reporter - August 2017 - 55
American Oil and Gas Reporter - August 2017 - 56
American Oil and Gas Reporter - August 2017 - 57
American Oil and Gas Reporter - August 2017 - 58
American Oil and Gas Reporter - August 2017 - 59
American Oil and Gas Reporter - August 2017 - 60
American Oil and Gas Reporter - August 2017 - 61
American Oil and Gas Reporter - August 2017 - 62
American Oil and Gas Reporter - August 2017 - 63
American Oil and Gas Reporter - August 2017 - 64
American Oil and Gas Reporter - August 2017 - 65
American Oil and Gas Reporter - August 2017 - 66
American Oil and Gas Reporter - August 2017 - 67
American Oil and Gas Reporter - August 2017 - 68
American Oil and Gas Reporter - August 2017 - 69
American Oil and Gas Reporter - August 2017 - 70
American Oil and Gas Reporter - August 2017 - 71
American Oil and Gas Reporter - August 2017 - 72
American Oil and Gas Reporter - August 2017 - 73
American Oil and Gas Reporter - August 2017 - 74
American Oil and Gas Reporter - August 2017 - 75
American Oil and Gas Reporter - August 2017 - 76
American Oil and Gas Reporter - August 2017 - 77
American Oil and Gas Reporter - August 2017 - 78
American Oil and Gas Reporter - August 2017 - 79
American Oil and Gas Reporter - August 2017 - 80
American Oil and Gas Reporter - August 2017 - 81
American Oil and Gas Reporter - August 2017 - 82
American Oil and Gas Reporter - August 2017 - 83
American Oil and Gas Reporter - August 2017 - 84
American Oil and Gas Reporter - August 2017 - 85
American Oil and Gas Reporter - August 2017 - 86
American Oil and Gas Reporter - August 2017 - 87
American Oil and Gas Reporter - August 2017 - 88
American Oil and Gas Reporter - August 2017 - 89
American Oil and Gas Reporter - August 2017 - 90
American Oil and Gas Reporter - August 2017 - 91
American Oil and Gas Reporter - August 2017 - 92
American Oil and Gas Reporter - August 2017 - 93
American Oil and Gas Reporter - August 2017 - 94
American Oil and Gas Reporter - August 2017 - 95
American Oil and Gas Reporter - August 2017 - 96
American Oil and Gas Reporter - August 2017 - 97
American Oil and Gas Reporter - August 2017 - 98
American Oil and Gas Reporter - August 2017 - 99
American Oil and Gas Reporter - August 2017 - 100
American Oil and Gas Reporter - August 2017 - 101
American Oil and Gas Reporter - August 2017 - 102
American Oil and Gas Reporter - August 2017 - 103
American Oil and Gas Reporter - August 2017 - 104
American Oil and Gas Reporter - August 2017 - 105
American Oil and Gas Reporter - August 2017 - 106
American Oil and Gas Reporter - August 2017 - 107
American Oil and Gas Reporter - August 2017 - 108
American Oil and Gas Reporter - August 2017 - 109
American Oil and Gas Reporter - August 2017 - 110
American Oil and Gas Reporter - August 2017 - 111
American Oil and Gas Reporter - August 2017 - 112
American Oil and Gas Reporter - August 2017 - 113
American Oil and Gas Reporter - August 2017 - 114
American Oil and Gas Reporter - August 2017 - 115
American Oil and Gas Reporter - August 2017 - 116
American Oil and Gas Reporter - August 2017 - 117
American Oil and Gas Reporter - August 2017 - 118
American Oil and Gas Reporter - August 2017 - 119
American Oil and Gas Reporter - August 2017 - 120
American Oil and Gas Reporter - August 2017 - 121
American Oil and Gas Reporter - August 2017 - 122
American Oil and Gas Reporter - August 2017 - 123
American Oil and Gas Reporter - August 2017 - 124
https://www.nxtbook.com/nxtbooks/aogr/202103
https://www.nxtbook.com/nxtbooks/aogr/202102
https://www.nxtbook.com/nxtbooks/aogr/202101
https://www.nxtbook.com/nxtbooks/aogr/202012
https://www.nxtbook.com/nxtbooks/aogr/202011
https://www.nxtbook.com/nxtbooks/aogr/202010
https://www.nxtbook.com/nxtbooks/aogr/202009
https://www.nxtbook.com/nxtbooks/aogr/202008
https://www.nxtbook.com/nxtbooks/aogr/202007
https://www.nxtbook.com/nxtbooks/aogr/202006
https://www.nxtbook.com/nxtbooks/aogr/202005
https://www.nxtbook.com/nxtbooks/aogr/202004
https://www.nxtbook.com/nxtbooks/aogr/202003
https://www.nxtbook.com/nxtbooks/aogr/202002
https://www.nxtbook.com/nxtbooks/aogr/202001
https://www.nxtbook.com/nxtbooks/aogr/201912
https://www.nxtbook.com/nxtbooks/aogr/201911
https://www.nxtbook.com/nxtbooks/aogr/201910
https://www.nxtbook.com/nxtbooks/aogr/201909
https://www.nxtbook.com/nxtbooks/aogr/201908
https://www.nxtbook.com/nxtbooks/aogr/201907
https://www.nxtbook.com/nxtbooks/aogr/201906
https://www.nxtbook.com/nxtbooks/aogr/201905
https://www.nxtbook.com/nxtbooks/aogr/201904
https://www.nxtbook.com/nxtbooks/aogr/201903
https://www.nxtbook.com/nxtbooks/aogr/201902
https://www.nxtbook.com/nxtbooks/aogr/201901
https://www.nxtbook.com/nxtbooks/aogr/201812
https://www.nxtbook.com/nxtbooks/aogr/201811
https://www.nxtbook.com/nxtbooks/aogr/201810
https://www.nxtbook.com/nxtbooks/aogr/pbios_201810
https://www.nxtbook.com/nxtbooks/aogr/201809
https://www.nxtbook.com/nxtbooks/aogr/201808
https://www.nxtbook.com/nxtbooks/aogr/201807
https://www.nxtbook.com/nxtbooks/aogr/201806
https://www.nxtbook.com/nxtbooks/aogr/201805
https://www.nxtbook.com/nxtbooks/aogr/201804
https://www.nxtbook.com/nxtbooks/aogr/201803
https://www.nxtbook.com/nxtbooks/aogr/201802
https://www.nxtbook.com/nxtbooks/aogr/201801
https://www.nxtbook.com/nxtbooks/aogr/201712
https://www.nxtbook.com/nxtbooks/aogr/201711
https://www.nxtbook.com/nxtbooks/aogr/201710
https://www.nxtbook.com/nxtbooks/aogr/201709
https://www.nxtbook.com/nxtbooks/aogr/201708
https://www.nxtbook.com/nxtbooks/aogr/201707
https://www.nxtbook.com/nxtbooks/aogr/201706
https://www.nxtbook.com/nxtbooks/aogr/201705
https://www.nxtbook.com/nxtbooks/aogr/201704
https://www.nxtbook.com/nxtbooks/aogr/201703
https://www.nxtbook.com/nxtbooks/aogr/201702
https://www.nxtbook.com/nxtbooks/aogr/201701
https://www.nxtbook.com/nxtbooks/aogr/201612
https://www.nxtbook.com/nxtbooks/aogr/201611
https://www.nxtbook.com/nxtbooks/aogr/201610
https://www.nxtbook.com/nxtbooks/aogr/pbios2016_programguide
https://www.nxtbook.com/nxtbooks/aogr/201609
https://www.nxtbook.com/nxtbooks/aogr/201608
https://www.nxtbook.com/nxtbooks/aogr/201607
https://www.nxtbook.com/nxtbooks/aogr/201606
https://www.nxtbook.com/nxtbooks/aogr/201605
https://www.nxtbook.com/nxtbooks/aogr/201604
https://www.nxtbook.com/nxtbooks/aogr/201603
https://www.nxtbook.com/nxtbooks/aogr/201602
https://www.nxtbook.com/nxtbooks/aogr/201601
https://www.nxtbook.com/nxtbooks/aogr/201512
https://www.nxtbook.com/nxtbooks/aogr/201511
https://www.nxtbook.com/nxtbooks/aogr/201510
https://www.nxtbook.com/nxtbooks/aogr/201509
https://www.nxtbook.com/nxtbooks/aogr/201508
https://www.nxtbook.com/nxtbooks/aogr/201507
https://www.nxtbook.com/nxtbooks/aogr/201506
https://www.nxtbook.com/nxtbooks/aogr/201505
https://www.nxtbook.com/nxtbooks/aogr/201504
https://www.nxtbook.com/nxtbooks/aogr/201503
https://www.nxtbook.com/nxtbooks/aogr/201502
https://www.nxtbook.com/nxtbooks/aogr/201501
https://www.nxtbook.com/nxtbooks/aogr/201412
https://www.nxtbook.com/nxtbooks/aogr/201411
https://www.nxtbook.com/nxtbooks/aogr/201410
https://www.nxtbook.com/nxtbooks/aogr/201409
https://www.nxtbook.com/nxtbooks/aogr/pbios2014_programguide
https://www.nxtbook.com/nxtbooks/aogr/201408
https://www.nxtbook.com/nxtbooks/aogr/201407
https://www.nxtbook.com/nxtbooks/aogr/201406
https://www.nxtbook.com/nxtbooks/aogr/201405
https://www.nxtbook.com/nxtbooks/aogr/201404
https://www.nxtbook.com/nxtbooks/aogr/201403
https://www.nxtbook.com/nxtbooks/aogr/201402
https://www.nxtbook.com/nxtbooks/aogr/201401
https://www.nxtbook.com/nxtbooks/aogr/201312
https://www.nxtbook.com/nxtbooks/aogr/201311
https://www.nxtbook.com/nxtbooks/aogr/201310
https://www.nxtbook.com/nxtbooks/aogr/201309
https://www.nxtbook.com/nxtbooks/aogr/201308
https://www.nxtbook.com/nxtbooks/aogr/201307
https://www.nxtbook.com/nxtbooks/aogr/201306
https://www.nxtbook.com/nxtbooks/aogr/201305
https://www.nxtbook.com/nxtbooks/aogr/201304
https://www.nxtbook.com/nxtbooks/aogr/201303
https://www.nxtbook.com/nxtbooks/aogr/201302
https://www.nxtbook.com/nxtbooks/aogr/201301
https://www.nxtbook.com/nxtbooks/aogr/201212
https://www.nxtbook.com/nxtbooks/aogr/201211
https://www.nxtbook.com/nxtbooks/aogr/201210
https://www.nxtbook.com/nxtbooks/aogr/201209
https://www.nxtbook.com/nxtbooks/aogr/2012_pbios
https://www.nxtbook.com/nxtbooks/aogr/201208
https://www.nxtbook.com/nxtbooks/aogr/201207
https://www.nxtbook.com/nxtbooks/aogr/201206
https://www.nxtbook.com/nxtbooks/aogr/201205
https://www.nxtbook.com/nxtbooks/aogr/201204
https://www.nxtbook.com/nxtbooks/aogr/201203
https://www.nxtbook.com/nxtbooks/aogr/201202
https://www.nxtbook.com/nxtbooks/aogr/201201
https://www.nxtbook.com/nxtbooks/demo/aogr_clone
https://www.nxtbook.com/nxtbooks/aogr/201112
https://www.nxtbookmedia.com