Successful Mitigation of Microbiologically Influenced Corrosion in Waterflood Pipelines and Process Equipment
MIC Waterfloods Presentation
Feb 21, 2016
SRB control in water flood operations.
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Transcript
Successful Mitigation of Microbiologically Influenced
Corrosion in Waterflood Pipelines and Process
Equipment
Presentation Outline• Introduction• Problem Discussion– Bore wells– Filtration Package– Pipeline
• Biocide Testing• Effectiveness• Conclusions
LOCATIONLOCATION
FACILITIES DESIGN
Waterflood Layout
Corrosion Problems
Bore Wells
Riser Failure
Mid Line Riser Pipe
Wellhead Tie In
Facility Pipeline
Typical Failure Grouping
Pipeline Failure
Failure after Cleaning
Bacterial Pit
Flange Failure
Filtration Package
Filter Failure
Close up of Failure
Pipeline Survey
Main Line Failures > 25% lossRT-RE Failure Distribution
0
9
8
3
6
7
5 5
12
0
2
4
6
8
10
12
14
1 2 3 4 5 6 7 8 9
Kilometers
Failu
res
Lateral Corrosion loss > 25%RE-RD ERF by location
4
18
26
44
4043
0
5
10
15
20
25
30
35
40
45
50
1 2 3 4 5 6Kilometers
failu
res
BiocidesBiocides
Biocide Screening ResultsSRB Lab Screening Results
0
1
2
3
4
5
6
7
8
Blank Original Product Product 1 Product 2
10x
cells
250 ppm 500 ppm 1000 ppm
Biocide Screening ResultsGAnB Lab Screening Results
0
1
2
3
4
5
6
Blank Original Product Product 1 Product 2
10x
cells
250 ppm 500 ppm 1000 ppm
Initial SRB Analysis
Day1
Day2
Day3
Day4
Day5
Day6
Day7
Base
line
20/0
9/99
25/0
9/99
28/0
9/99
0
1
2
3
4
5
Log cells
Incubation period
Sample date
Stud SRB performance
Base line 20/09/99 25/09/99 28/09/99
Initial GAB Analysis
Bas
e lin
e
19/0
9/99
20/0
9/99
21/0
9/99
23/0
9/99
24/0
9/99
25/0
9/99
26/0
9/99
27/0
9/99
28/0
9/99
Day
1 Day
2
Day
3
Day
4
Day
5
Day
6
Day
7
0
1
2
3
4
Log cells
Sample date Incubation period
Terminal GAB performance results
Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7
Current Treating Results
SRB in Terminal ResultsSRB Data
0
0.5
1
1.5
2
2.5
3
3.5
0 20 40 60 80 100 120
Bot
tles
7 per. Mov. Avg. (Terminal as treat)
Maximum Acceptable Positive Growth
GAnB in Terminal Results GAn Bacteria
0
0.5
1
1.5
2
2.5
3
3.5
1 8 15 22 29 36 43 50 57 64
Days
Bot
tles
Posi
tive
7 day moving aver.- Day of treatment
Maximum Accceptable
ConclusionsConclusions
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