An Introduction to Surface well test pump.ppt

A brief description of well test pump used in the Oil and gas industry

1. PRESENTATION ON PUMPPRESENTATION ON PUMP
BY BY
ALOYSIUS IYOHAALOYSIUS IYOHA
OILTEST WELL SERVICES LIMITEDOILTEST WELL SERVICES LIMITED

2. OUTLINEOUTLINE
oPumps: Definition
oTypes of pumps and examples
oTransfer pumps: functions in well testing
oElectric transfer pump
oDescription
oSafety designs
oRigging-up

3. PUMPS: DEFINITIONPUMPS: DEFINITION
oA pump is a device that is used to move fluids
by mechanical action.
oPumps can be classified into major types:
- positive displacement pumps
- Roto-dynamic pumps

4. POSITIVE DISPLACEMENT PUMPSPOSITIVE DISPLACEMENT PUMPS
oPositive displacement pumps makes fluid move
by trapping a fixed amount and forcing
(displacing) that volume into the discharge pipe.
oExamples of positive displacement pump
include:
- Piston pump e.g. Hydratron test pump,
triplex pump, etc.
- Diaphragm pump e.g. Wilden pump,
TEXTEAM chemical injection
pump, etc.
- Screw pump e.g. diesel and electric
pumps.

5. ROTODYNAMIC PUMPSROTODYNAMIC PUMPS
Rotodynamic pumps adds kinetic energy to the
fluid by increasing flow velocity.
oExample is the centrifugal pump.
oA centrifugal pump uses a rotating impeller
(wheel) to impart high velocity to the fluid, which
is converted to pressure.

6. SOURCE OF POWERSOURCE OF POWER
oPumps can be powered using:
oElectric motor
oDiesel engine
oAir driven or pneumatic e.g. Widen pump and
TEXTEAM pump.

7. TRANSFER PUMPSTRANSFER PUMPS
oTransfer pumps are used in welltesting to:
- Empty the surge/gauge tank
- Re-inject oil into an existing production flowline.
- Pump oil to the burner for the well effluent to
atomise and burn cleanly.

8. ELECTRIC TRANSFER PUMP ELECTRIC TRANSFER PUMP
oThe transfer pump is a special type of screw type positive
displacement pump, known as positive cavity pump.
oIt has a rotor (external helix with a round cross-section)
and a rubber stator).

9. DESCRIPTIONDESCRIPTION
oPUMP CONNECTIONS:
- 4” FIG. 206 FEMALE INLET
- 3” FIG. 206 MALE OUTLET
oMAX. WORKING PRESSURE: 300psi
oCONTROLS:
- Master switch button
- Start button
- Stop button
- Emergency stop button

10. SAFETY DESIGNSSAFETY DESIGNS
The safety prevents pressure build
beyond the max working
capacity of the pump.
oSafety Relief valve:
If the discharge line is blocked or
closed, pressure builds up until
the motor stalls.

11. SAFETY DESIGNSSAFETY DESIGNS
oCheck valve: prevents flow back through the
outlet which can damage the rotor and stator.
oElectrical Fault indicators: Fault indicator button
and under voltage indicator.
oBy-pass valve:
It prevents pump overload by allowing re-
circulation of flow.

12. RIGGING UPRIGGING UP
oSecure appropriate x-over.
oTransfer pump should be positioned close to
the tank, so the suction line is as short as possible.
oElectrical installation undertaken by qualified
personnel.
oEnsure pump is grounded.
oCheck that rotation is anticlockwise.
oInstall a gauge to monitor output pressure
oPrime the pump before operation

13. THANK YOU