American Oil and Gas Reporter - April 2022 - 63

events, we use a cutoff of travel time
misfit < 2.5 milliseconds and at least two
arrays for source location triangulation.
Cross-Well Communication
2.5
The study also investigated cross-well
communication between B2H and B3H
while B2H was being hydraulically fractured
using permanently installed fiber
optics in B3H to monitor B2H treatments
for cross-well strain measurements. As
indicated, BR1H/BR2H fractures in B2H
will cause preferential fracture growth
eastward toward the parent laterals and
reduced cross-well communication with
B3H to the west of B2H.
Figure 4 shows cross-well strain
measurements along the fiber in B3H
mapped at the depths associated with
the corresponding stages in B2H. Along
with the cumulative strain observed, the
figure highlights the identified fractures
observed to intersect or communicate
with B3H during B2H's fracturing.
These are shown using the green vertical
lines for a relative distribution. Each
data point along the blue curve (as well
as each green bar) represents data for a
corresponding B2H stage. This entire
depth interval is situated across the
2
10,000
1.5
1
5,000
0.5
1.5
1.55
1.6
1.65
1.7
MD (ft)
BR1H/BR2H laterals.
In zones with fewer significant preexisting
propped fractures from
BR1H/BR2H parents (15,000-17,250 feet
MD), fractures grow more uniformly
compared with the toe-end of the well
(17,250-18,750 feet MD. The toe-end
sections show significant propped zones
and show fewer fractures growing westward
toward B3H, indicating much higher
preferential growth eastward toward BR1H
and BR2H. Therefore, fractures in this
1.75
1.8
1.85
x104
section are likely more skewed toward
the parent wells. The lower summed
strain response in the toe-end section
also corresponds with fewer interpreted
fractures observed in B3H.
Looking at cross-well communication
observed at B4H versus observed communication
at B3H during B2H fracturing,
an interesting phenomenon became apparent
regarding preferential fracture
growth toward B4H versus B3H: fracture
growth toward the two westward wells
1.9
3
9
6
FIGURE 4
Cross-Well Strain Response Parameters Observed in
B3H during treatment of B2H's Stages
x105
15,000
12
15
APRIL 2022 63
#Proppant (g -1
)
Stage-wise summed strain at all depths (rad x 104
Observed fractures at B3H from B2H
)

American Oil and Gas Reporter - April 2022

Table of Contents for the Digital Edition of American Oil and Gas Reporter - April 2022

Contents
American Oil and Gas Reporter - April 2022 - Intro
American Oil and Gas Reporter - April 2022 - Cover1
American Oil and Gas Reporter - April 2022 - Cover2
American Oil and Gas Reporter - April 2022 - Contents
American Oil and Gas Reporter - April 2022 - 4
American Oil and Gas Reporter - April 2022 - 5
American Oil and Gas Reporter - April 2022 - 6
American Oil and Gas Reporter - April 2022 - 7
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American Oil and Gas Reporter - April 2022 - Cover3
American Oil and Gas Reporter - April 2022 - Cover4
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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
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https://www.nxtbook.com/nxtbooks/aogr/201601
https://www.nxtbook.com/nxtbooks/aogr/201512
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https://www.nxtbook.com/nxtbooks/aogr/201509
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https://www.nxtbook.com/nxtbooks/aogr/201501
https://www.nxtbook.com/nxtbooks/aogr/201412
https://www.nxtbook.com/nxtbooks/aogr/201411
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https://www.nxtbook.com/nxtbooks/aogr/201409
https://www.nxtbook.com/nxtbooks/aogr/pbios2014_programguide
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