1. REDA Production Systems
Schlumberger
REDA Production Systems
XPERT ESP
ESP Components
SURFACE EQUIPMENT

2. XPERT ESP SURFACE COMPONENTS - Transformer - Switch Board
- Junction box
- Well Head or tubing head

3. Motor speed controller
XPERT ESP
SURFACE EQUIPMENT
Shown here is the surface related equipment required for
most down-hole electrical submergible pump systems.
Transformer
Motor speed controller
Junction Box
Well Head

4. XPERT ESP Transformer SURFACE EQUIPMENT - Single phase transformer
• Provides required voltage for down hole motor
• Works by transforming the voltage through induction magnetic field
• In general, 3 types of transformer :
- Single phase transformer
- Three phases transformer
- Auto transformer
• 4 Main construction parts :
- Core (lamination body)
- Primary winding
- Secondary winding
- Enclosure

5. Transformer XPERT ESP SURFACE EQUIPMENT
The transformer sends the correct voltage to the Switchboard for designed surface voltage for the proper motor operation.
This is based on power rating in KVA.
Transformers can be either single phase or three phase.

6. SURFACE EQUIPMENT
XPERT ESP
Transformer
Normally when using single phase transformers for three phase power, three individual transformers are connected together, in various configurations.
A single phase transformer generally appears similar to the figure shown.

7. SURFACE EQUIPMENT
XPERT ESP
CORE
WINDING

8. XPERT ESP SURFACE EQUIPMENT V1 = T1 -------> 600 = 10 ----->
120 VOLTS (2 TURNS)
600 VOLTS (10 TURNS)
V1 = T > = >
V2 T V
V2 = X 2 = 10
120 VOLTS V2 V2

9. XPERT ESP SURFACE EQUIPMENT
DETERMINE TRANSFORMER’S KVA
Sample : Motor 180 HP/ 1000 V/ 103 Amp
PSD 3000 Ft, SBHT = 200°F
Cable AWG -1, length 3100 Ft.
Voltage drop (from chart) = 24 Volts/ 1000 Ft
Total Volt drop = 24 x {( ) / 1000)} =
76.8 Volts 24
AWG #1
103
Required surface voltage = = Volts
KVA = (Surface Volt x Amps x 1.732) / 1000
= ( x 103 x 1.732) / 1000
= KVA > Choose 200 KVA (Minimum)

10. XPERT ESP • TRANSFORMER - Variable input Voltage
SURFACE EQUIPMENT
• TRANSFORMER
- Variable input Voltage
High voltage required in the transmission to get lower
Amperage, in order to allow smaller size cable
Input voltage decreased by a step down transformer to
meet required motor voltage

11. XPERT ESP • Switch Board - Control panel for electric motor
SURFACE EQUIPMENT
• Switch Board
- Control panel for electric motor
- Equipped with motor controller
• Monitors overload / under load problems
• Can be set to auto restart in the case of intermittent well
• Detects voltage unbalance
- Equipped with Amp chart to record motor performance

12. Reda Switchboard XPERT ESP Ratings DFH2 600 Volt MFH 1000 Volt
SURFACE EQUIPMENT
XPERT ESP
Reda Switchboard
Ratings
DFH2 600 Volt
MFH Volt
MDFH 1500 Volt
AB Volt*
* Available to 5000V by changing P.T.

13. Switchboard Ratings: Maximum Voltage Maximum Amp Load Maximum KVA
SURFACE EQUIPMENT
XPERT ESP
Switchboard
Ratings:
Maximum Voltage
Maximum Amp Load
Maximum KVA

14. Switchboard XPERT ESP Select a Switchboard with the appropriate
SURFACE EQUIPMENT
XPERT ESP
Switchboard
Selecting a Switchboard
Select a Switchboard with the appropriate
Volt, Amp and KVA rating
Select a motor controller type and feature
Select a wiring harness for the motor controller.

15. XPERT ESP • Switch Boards SURFACE EQUIPMENT FOUR MAIN COMPONENTS
• MAIN BREAKER
To connect high voltage from the transformer to the down hole motor
• POTENTIAL TRANSFORMER (PT)
To reduce the high voltage to 120 Volts, for use by the control systems in the switch board - and to hold magnetic field in the Vacuum contactor
• CURRENT TRANSFORMER (CT)
Reduce high amperage in the circuit to 5 amps for ease of measurements
• VACUUM CONTACTOR
Function is to absorb spark that possibly occur in the contactor system
during start and stop switching operations.

16. XPERT ESP SWITCH BOARD • 3 MAIN FUNCTIONS - Motor starter unit
SURFACE EQUIPMENT
SWITCH BOARD
• 3 MAIN FUNCTIONS
- Motor starter unit
- Protective equipment for overload and under load problems
- Recording Instruments
• SWITCH BOARD CONTENT
- Manual Switch breaker
- Motor controller
- Gas locking protector
- Restart relays for intermittent well
- Amp chart mechanism

17. Potential Transformers
XPERT ESP
SURFACE EQUIPMENT
Potential Transformers
Installed in the switchboard
Used to step-down the high voltage to a control voltage of 120 volts (no load).
The 120 volts is used to run all the control circuits in the Switchboard.
Motor controllers will monitor the control voltage; and using the P.T. ratio calculate the line voltage in the switchboard.

18. Potential Transformers
SURFACE EQUIPMENT
XPERT ESP
Potential Transformers
• Transformer Rating 1430/126
Calculate the Ratio = 11.35
• If Measured secondary Voltage = 119V
Then at primary side we have 119V x 11.35
= 1350V
126

19. SURFACE EQUIPMENT
XPERT ESP
Current Transformers
Another type of transformer which is used in the motor controller is the “Current Transformer". (CT)
This type of transformer changes one current to a different current.

20. Current Transformers XPERT ESP
SURFACE EQUIPMENT
XPERT ESP
Current Transformers
A conductor passes through the winding of the CT and energizes the CT. Typically the CT ranges used in the SPS controllers have a ratio of 200:5, 300:5, 150:5, 75:5 etc.
Primary side
Secondary side

21. Current Transformers XPERT ESP
SURFACE EQUIPMENT
XPERT ESP
Current Transformers
As an example, if 180A is flowing through the conductor, and the TR is 200:5, the amperage on the secondary side of the CT will be:
180
(200:5) or
Sec. Amps =
= 4.5 A
180A
180
200
Sec. Amps =
x 5 = 4.5 A
4.5 A

22. Current Transformers XPERT ESP
SURFACE EQUIPMENT
XPERT ESP
Current Transformers
CT’s transform the motor amperage at the primary side, to 5 amps (maximum) on the secondary side, in order to be able to record the current on the amp chart.
However motor amps display are best at the middle of the range between 0 – 5, to give space for overload and under load problems recorded.

23. Current Transformers XPERT ESP SURFACE EQUIPMENT Motor running amps

24. Current Transformers XPERT ESP
SURFACE EQUIPMENT
XPERT ESP
Current Transformers
If one pass of the wire results is greater than 5A, the CT ratio must be increased by going to a CT with a higher turns ratio.
Control Circuit amperage can also be increased by two by looping the wire for two passes; or by three with three passes.

25. Current Transformers XPERT ESP Given example:
SURFACE EQUIPMENT
XPERT ESP
Current Transformers
Given example:
Available single tap CT 300:5 ratio. Motor load: 85 Amps.
A rough guide is to multiply current by 1.6
CT set up: 85 x 1.6 = CT ratio 150 : 5
Working Amperage at amps chart control :
 (85/150) x 5 = 2.8 A
Available CT 300 : 5  (85/300) x 5 = A.

26. Current Transformers XPERT ESP CT ratio 150 : 5 CT ratio 300 : 5
SURFACE EQUIPMENT
XPERT ESP
Current Transformers
CT ratio 150 : 5
CT ratio 300 : 5
Solution : Make two turns of wire

27. Current Transformers XPERT ESP Sizing CT’s
SURFACE EQUIPMENT
XPERT ESP
Current Transformers
Sizing CT’s
Amps through S.B. X 1.6 = CT primary size
e.g. 59 A X1.6 = 94 Amps
100:5 CT = 20:1
59/20 = 2.95 Amps Secondary Current
Motor Controllers work best between Amps

28. Junction Boxes

29. XPERT ESP JUNCTION BOX SURFACE EQUIPMENT FUNCTION:
• Ventilation for gas that possibly comes up to surface through the cable
• Connection terminals, easier to reverse motor rotation and to take initial readings.
JUNCTION BOX

30. SURFACE EQUIPMENT
XPERT ESP
Wellhead
The Wellhead is the equipment that is installed at the surface of the well bore.
It’s purpose is: to suspend the tubing string in the well, and to monitor and control high pressures conditions often present within the well.

31. WELL HEAD CONNECTOR ASSEMBLY
PICK UP TUBING
FROM JUNCTION BOX
SURFACE EQUIPMENT
SURFACE POWER PLUG
TUBING HANGER
PENETRATOR
O RING
WELL HEAD CONNECTOR ASSEMBLY
ATTACHABLE CONNETOR (ASSEMBLY)
PRODUCTION TUBING
STRAPPED CABLE BAND
PAU/ XPERT ESP/ IWS
IWS- XpertESP 2002

32. WELL HEAD PACK OFF ASSEMBLY
POWER CABLE FROM JBOX
SURFACE EQUIPMENT
GLAND NUT
WELL HEAD PACK OFF ASSEMBLY
O RING
RUBBER SEAL
METALSPLIT RING
PAU/ XPERT ESP/ IWS
IWS- XpertESP 2002

33. End of Presentation