Rocsole profiler tool validated by 3rd party laboratory. Here we show some of the results. Now you can have reliable non nucleonic tool for your level measurement inside tanks and separators.
2. INTRODUCTION
ROCSOLE PROFILER WAS INSTALLED IN 3-PHASE SEPARATOR
AT MEDIUM SCALE MULTI-PHASE CLOSED FLOWLOOP
Test runs were performed during 6.11.2018 – 26.11.2018.
VERIFY THE PERFORMANCE OF THE
ROCSOLE PROFILER VS. TYPICAL NUCLEONIC DEVICE (REFERENCE)
Purpose of the test campaign was to
ROCSOLE NUCLEONIC
MEASUREMENT TIME 1 second 15-20 minutes
INSTALLATION TYPE Fixed Vertical movement
(0.04 in/s, 1.00 mm/s)
OPERATING PRINCIPLE Electrical conductivity * Density *
* In this project profiles were converted to water cut profiles!
3. INSTALLATION
PROFILER INSTALLED TO SEPARATOR
BEFORE ADDING FLUIDS
PICTURE FROM INSIDE
THE SEPARATOR
OPERATING
CONDITIONS
& PARAMETERS:
~33 °API
p = 8 bar
T = 18.5 °C
FLOWRATE:
varied low to high velocity
SEPARATOR SIZE:
Volume= 11 m³
ID = 1.6 m
WATERCUT RANGE:
0 to 100%
5. ALL 127 SCANS IN ONE PICTURE
Dates
EACH BLACK
LINE REPRESENTS
ONE SCAN
SCAN 9
SCANS
16 & 19
SCANS
24 & 26
SCANS 45 & 51
SCANS
37 & 39
SCANS 80,
81 & 86 SCAN 122
FIRST SCAN
( SCAN 1 )
LAST
SCAN
( SCAN 127 )
127 SCANS WERE MEASURED WITH ROCSOLE PROFILER AND
WITH NUCLEONIC DEVICE. IN THE FOLLOWING, FEW SCANS
WITH EITHER STABLE OR TRANSIENT OIL-WATER INTERFACES
WERE SELECTED FOR CLOSER COMPARISON
In this campaign
Both gamma density and conductivity profiles were converted to water cut.
6. WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT
PROFILE IS STEADY
GAS
OIL
EMULSION
WATER
WATER CUT PROFILE (BLACK LINE)
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
WATER CUT GAMMA
GAMMA DENSITY
SCAN 9
Note that
WATER CUT GAMMA IN THE MIDDLE FIGURE IS COMPUTED
USING GAMMA DENSITY IN THE RIGHT FIGURE
Time
7. SCAN 16
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT
PROFILE CHANGING
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
GAS
OIL
EMULSION
WATER
Time
WATER CUT FIRST
= BEGINNING OF THE SCAN
WATER CUT END
= END OF THE SCAN
GAMMA WATER CUT (CYAN) IS CLOSER TO THE FIRST WATER CUT PROFILE IN
THE BOTTOM PART OF THE TANK and close to the last profile in upper part of the tank.
Note that
8. SCAN 18
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT
PROFILE IS STEADY
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
SMALL
CHANGES
GAS
OIL
EMULSION
WATER
Time
WATER CUT FIRST
= BEGINNING OF THE SCAN
WATER CUT END
= END OF THE SCAN
9. WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT PROFILE (BLACK LINE)
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
SCAN 24 WATER CUT
PROFILE IS STEADY
GAS
OIL
EMULSION
WATER
Time
10. SCAN 26
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT PROFILE (BLACK LINE)
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
WATER CUT
PROFILE IS STEADY
GAS
OIL
EMULSION
Time
11. SCAN 34
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT
PROFILE IS CHANGING
SMALL
CHANGES
GAMMA WATER CUT (CYAN) IS CLOSER TO THE FIRST WATER CUT PROFILE IN
THE BOTTOM PART OF THE TANK and close to the last profile in upper part of the tank.
Note that
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
GAS
OIL
EMULSION
WATER
Time
WATER CUT FIRST
= BEGINNING OF THE SCAN
WATER CUT END
= END OF THE SCAN
12. SCAN 37
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT PROFILE (BLACK LINE)
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
WATER CUT
PROFILE IS STEADY
GAS
OIL
EMULSION
WATER
Time
13. SCAN 39
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT PROFILE (BLACK LINE)
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
WATER CUT
PROFILE IS STEADY
GAS
OIL
EMULSION
WATER
Time
14. SCAN 45
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT PROFILE (BLACK LINE)
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
WATER CUT
PROFILE IS STEADY
WATER CUT USING GAMMA MEASUREMENTS IN THE BOTTOM REGION
OF THE TANK IS ESTIMATED TO BE SLIGHTLY UNDER ONE.
Note that
Errors in the gamma density estimates makes the differentiation of the pure water from emulsion
sometimes difficult.
GAS
OIL
EMULSION
WATER
Time
15. SCAN 51
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT
PROFILE IS CHANGING
EMULSION
IS CHANGING
GAMMA WATER CUT (CYAN) IS CLOSER TO THE FIRST WATER CUT PROFILE IN
THE BOTTOM PART OF THE TANK and close to the last profile in upper part of the tank.
Note that
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
GAS
OIL
EMULSION
WATER CUT FIRST
= BEGINNING OF THE SCAN
WATER CUT END
= END OF THE SCAN
Time
16. SCAN 80
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT
PROFILE IS CHANGING
EMULSION
IS CHANGING
GAMMA WATER CUT (CYAN) IS CLOSER TO THE FIRST WATER CUT PROFILE IN
THE BOTTOM PART OF THE TANK and close to the last profile in upper part of the tank.
Note that
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
GAS
OIL
EMULSION
Time
WATER CUT FIRST
= BEGINNING OF THE SCAN
WATER CUT END
= END OF THE SCAN
17. SCAN 81
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT
PROFILE IS CHANGING
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
EMULSION
IS CHANGING
THERE ARE LARGE FLUCTUATIONS IN THE GAMMA WATER CUT
(ESPECIALLY IN THE BOTTOM PART OF THE TANKS)
Note that
GAS
OIL
EMULSION
WATER
Time
WATER CUT FIRST
= BEGINNING OF THE SCAN
WATER CUT END
= END OF THE SCAN
18. SCAN 86
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
WATER CUT PROFILE (BLACK LINE)
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
WATER CUT
PROFILE IS STEADY
GAS
OIL
EMULSION
Time
19. EPOXY COATING
§ Two days of measurements were recorded
with coated probe.
§ As with other data points, the results for
these points were calculated using the
same algorithm parameters. USED EPOXY
PAINT
COATED
PROFILER
ROCSOLE PROFILER WAS TAKEN OUT
FROM SEPARATOR & COATED WITH
2 COMPONENT EPOXY PAINT
PURPOSE OF THE COATING IS
TO SIMULATE AN INSULATING
DEPOSIT LAYER
20. SCAN 122
(WITH EPOXY)
WATER CUT COMPARISON OF PROFILES GAMMA DENSITY PROFILE
AIR-OIL INTERFACE
OIL-EMULSION INTERFACE
EMULSION-WATER INTERFACE
GAMMA DENSITY
EMULSION
IS CHANGING
WATER CUT
PROFILE IS CHANGING
GAS
OIL
EMULSION
Time
WATER CUT FIRST
= BEGINNING OF THE SCAN
WATER CUT END
= END OF THE SCAN
21. SUMMARY
ROCSOLE PROFILER HAS MANY OTHER BENEFITS:
No moving parts
Environmentally safe
Low maintenance
ROCSOLE PROFILER GIVES VERY SIMILAR
WATER CUT PROFILES & INTERFACES AS
THE GAMMA DENSITY SCANNER
The Rocsole profiler measures the whole profile instantaneously while with gamma
scanner it takes 15-20 minutes to measure the profile