nitrified acid over balance tcp perforation in carbonate ... · barik dhg failure and investigation...
TRANSCRIPT
Nitrified Acid over balance TCP
perforation in Carbonate
Formation is really beneficial for
Long Production Performance and
Negative Skin Reservoir
December, 4th 2013
Prepared by:Hanaey Ibrahim (GHOF), Khaled Abdul Azeim, Hany Dandarawy
(BURAPETCO), Khaled Shell (Halliburton)
Negative Skin Reservoir
MENAPS 13-13
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– Second level
• Third level
– Fourth level
Why??????
Safety
OperationsLoyalty– Fourth level
» Fifth level
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Operations
DecisionSuccess
Loyalty
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– Second level
• Third level
– Fourth level
Agenda
Objective
Background
Challenges– Fourth level
» Fifth level
12/7/2013 33MENAPS 13-13
Design
Operations
Findings
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– Second level
• Third level
– Fourth level
Objective
• Test A/R “G” Dolomite formation.
• Provide the optimum solution to avoid
perforation damage effect (Sp).– Fourth level
» Fifth level
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• Produce well and achieve best possible
production rate.
4MENAPS 13-13
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– Second level
• Third level
– Fourth level
Background
• Well # 2has been drilled in January 1995.
• Deep Formation “Alamein Dolomite” was
tested formation water.
• The well was abandoned by 3 EZSV and 2
cement plugs.– Fourth level
» Fifth level
12/7/2013 55
cement plugs.
MENAPS 13-13
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– Second level
• Third level
– Fourth level
Challenges
• Time Frame Test:– 40 days only before concession release.
– Contracting, programming, implementation.
• Resources:– 6 technical employees.
– Part time staff.– Fourth level
» Fifth level
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– Part time staff.
– Contracted company.
• Data and Information:– Correlation using near by fields.
– Review history of the existing wells.
– Risk
6MENAPS 13-13
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– Second level
• Third level
– Fourth level
Optimum Perforating Design
• Perforate 4 intervals of 119 ft gross with 66 ft net of A/R “G” Dolomite zones in underbalanced condition.
• Install Hydraulic Firing Head as back up to the mechanical one.
– Fourth level
» Fifth level
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mechanical one.
• Select deep penetration gun due to unknown damage radius data. 4 5/8”, 6 SPF, 32 gm, TCP, STU.
• Shot and drop was selected to avoid killing.
MENAPS 13-13
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– Second level
• Third level
– Fourth level
Operations Sequence - Well-2
• RIH with TCP. Set Packer, drop detonating bar.
• SOP had been applied (fish the bar, check Till tale).– Fourth level
» Fifth level
12/7/2013 8MENAPS 13-13
8
• RIH to drop gun 3 times.
• RIH with CTU, circulate and pump acid.
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– Second level
• Third level
– Fourth level
Acid Injection
2500
3000
3500
4000
4500
Well # 2 Injection Pressure
Pu
mp
ing
Pre
ssu
re (
psi
)
– Fourth level
» Fifth level
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0
500
1000
1500
2000
0:4
5
0:4
6
0:4
7
0:4
8
0:4
9
0:5
0
0:5
1
0:5
2
0:5
3
0:5
4
0:5
5
0:5
6
0:5
7
0:5
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0:5
9
1:0
0
1:0
1
1:0
2
1:0
3
1:0
4
1:0
5
1:0
6
1:0
7
1:0
8
Pu
mp
ing
Pre
ssu
re (
psi
)
Time (min)
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– Second level
• Third level
– Fourth level
Production Test Result
Production Choke Prod. Rate BFPD WHP Time HRS
½” 766 110 6
1” 982 104 6
1 ½” 1200 102 6
2” 1460 98 6– Fourth level
» Fifth level
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2” 1460 98 6
• PBU was carried out after the multi rate test and showed:
• Reservoir Pressure = 3252 psi
• Productivity Index = 2.47 BPD/psi
• Permeability = 65 md
• Skin = -3.5
MENAPS 13-13
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– Second level
• Third level
– Fourth level
Results – Reservoir Pressure Performance
3200
3250
3300
3350
3400
Reservoir Pressure
– Fourth level
» Fifth level
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3050
3100
3150
3200
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– Second level
• Third level
– Fourth level
Summary
• Challenges does not mean end of your conventional
believe.
• Money is not the vital against technical.
• Right decision on spot is rarely available nowadays.
• Nitrified acid is very useful in carbonates along with – Fourth level
» Fifth level
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• Nitrified acid is very useful in carbonates along with
perforation.
• Perforation with acid comes SOP for A/R “G” dolomite
in BURAPETCO operations.
MENAPS 13-1
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– Second level
• Third level
– Fourth level
Acknowledge
This presentation is to the
sole of the owner of the
Egyptian local exploration – Fourth level
» Fifth level
12/7/2013 1313
Egyptian local exploration
company.
MENAPS 13-16
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– Second level
• Third level
– Fourth level Thank You
Questions?
– Fourth level
» Fifth level
12/7/2013 1414
Thank You
MENAPS 13-16