AccessFrac Service

Report
Method to Help Improve Long-Term Production
Following Shale Fracture Treatments
Dave Allison
October 31, 2011
AccessFracSM Service
Poor Proppant Distribution
Not Contacting Enough of
the Reservoir
Hindered Hydrocarbon
Production
Method to Help Improve Long-Term Production
Following Shale Fracture Treatments
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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AccessFrac Service
Dave Allison
Tenet Manager – MSRV
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
3
AccessFrac Service
Poor Proppant Distribution
Not Contacting Enough of
the Reservoir
Hindered Hydrocarbon
Production
Method to Help Improve Long-Term Production
Following Shale Fracture Treatments
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
4
AccessFrac Service
Improved Proppant Distribution
Computer Modeling Studies
Analysis of Microseismic Mapping
Analysis of Production Logs
Lower than Expected Initial Production
Faster than Expected Production Declines
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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Improved Proppant Distribution
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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Improved Proppant Distribution
Near Wellbore
Temporary Blockage
Self Removing
Environmentally Friendly
Highly Compatible
BioVert® NWB material
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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AccessFrac Service
Traditionally use drillable bridge plugs to isolate clusters
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Physical barrier
Means to deliver perforating guns
Highly reliable
Drillable
Improvement Opportunities / Risk Mitigation
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Reduce time – installation
Reduce time – removal
Reduce risk – premature set or perforating
Reduce cost – displacement fluids
What other mechanism can we use to isolate clusters?
Biovert ® NWB Self-Degrading Diverting Agent
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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Traditional - Plug and Perforate
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Pump perforating gun and frac plug on depth
Set the frac plug
Correlate perforating gun and perforate
Pull out of the hole
Time requirements 3-5 hours
Repeat the process 15 – 30 times
Equipment standby time between 2 and 7 days
At conclusion the plugs have to be drilled out using a rig
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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AccessFrac Service
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Group 2 or 3 perforation clusters
Pump perforating guns and frac plug on depth
Pump frac treatments followed by diverters
Repeat as needed to cover lateral
Savings – Time 6-10 hours (perf & plug ops) per group
Savings – Time 1-4 days (equipment stand-by ) per well
Savings – Safety: reduce perforating exposure
Reduce - Risk of bridge plug setting prematurely
Savings – Cost of 66% of bridge plugs
Savings – Time reduce drill out ops by 66%
Savings
– Reduced
displacement fluid by 66%
To clean well
out:
Savings
– Diverter
– Time
self degrades
(faster) for fluid flow back
–
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
Plugs drilled out using rig
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Achieve much better
access to complex
fracture networks
New Completion Denton County – Horizontal Well
Replace Pump Down Plug
Case History 21 - 2010
Treatment Chart:
1st Biovert NWB on
perforations +60 psi
increase
2nd
3rd
2nd Diverter gives 115
psi increase
1st
3rd Diverter gives 1542
psi increase
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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New Completion Denton County – Horizontal Well
Replace Pump Down Plug
Case History 22 - 2010
Treatment Chart:
Biovert NWB agent on
perforations +916 psi
increase
Biovert NWB
Results: Saved considerable time and expense. Production equals offsets.
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
12
AccessFrac Service
Poor Proppant Distribution
Not Contacting Enough of
the Reservoir
Hindered Hydrocarbon
Production
Method to Help Improve Long-Term Production
Following Shale Fracture Treatments
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
13
AccessFrac Service
Enhanced Reservoir Contact
Analysis of Microseismic Mapping
Analysis of Production Logs
Lower than Expected Initial Production
Faster than Expected Production Declines
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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Deep Reservoir Diversion Candidate
Non Stimulated Area
Stage 3
1
2
3
4
Non Stimulated Area
Stage 4
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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Enhance Reservoir Contact
Deep Reservoir
Temporary Blockage
Self Removing
Environmentally Friendly
Highly Compatible
BioVert CF material
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
16
AccessFrac Service
Poor Proppant Distribution
Not Contacting Enough of
the Reservoir
Hindered Hydrocarbon
Production
Method to Help Improve Long-Term Production
Following Shale Fracture Treatments
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
17
Customizable Conductivity
26% Porosity
48% Porosity
65+% Porosity
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
85+% Porosity
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Customizable Conductivity
Surface Modification Agent
Enhanced Conductivity
Water Based System
30% more
conductivity
SandWedge® ABC enhancer
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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Highly Compatible
SandWedge Enhancer
Family
100,000+ applications
6 Month Cumulative Production
3000000
SandWedge
Enhancer
2500000
SandWedge
W
Chudleigh 3H-NW
No. 28H
TEEL
BLACK
No. 3 1H
2000000
ELY
No.6H
4
No. 5
HUBBARD
5H
Gas (Mcf)
6 3H
RNo.
SMITH
No. 7
HUBBARD
6H
No. 8
GESFORD
7H-NW
1500000
BLACK
No. 9 2H
10
B No.
SEVERCOOL
2H-NW
R No.
SMITH
11 1H
ELY
No.4H
12
1000000
J No.
GRIMSLEY
2H-SE
13
No. 14
HEITSMAN
4H-NW
RATZEL
No. 15 2H
ELY
No.1H
16
500000
0
1
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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3
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5
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AccessFrac Service
Complex fracture
network with
proppant using
AccessFrac
service
Typical shale
fracture without
diversion
Method to Help Improve Long-Term Production
Following Shale Fracture Treatments
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
21
AccessFrac Service
Poor Proppant
BioVert Distribution
NWB
Not contacting enough of
BioVert
CF
the
reservoir
Hindered Hydrocarbon
SandWedge
ABC
Production
Method to Help Improve Long-Term Production
Following Shale Fracture Treatments
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
22
AccessFrac Service
Thank you
Halliburton Energy Services
© 2011 HALLIBURTON. ALL RIGHTS RESERVED.
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