Basic CPP modules

1. Thai Nippon Steel Engineering and Construction Corporation
Presentation on
Central Processing Platform
Presented By: Preecha Natong

2. Thai Nippon Steel Engineering and Construction Corporation
AgendaAgenda
Overview of Oil and Gas Facilities
Basic Information for CPP

3. Thai Nippon Steel Engineering and Construction Corporation
Overview of Oil & Gas Facilities (Offshore)Overview of Oil & Gas Facilities (Offshore)
Offshore Oil & Gas Facilities typically consist of:
Main process platform.
Facilities for processing of
the incoming fluid
provided.
Manned platform.
WHP
1
WHP
2
WHP
3
Riser
Platform
Central
Processing
Platform
Utility &
Living Qtrs
Platform
Bridge
Support
Tripod
Flare
Tripod
Collects WellHead
fluids.
Can have Testing Facility
Normally Designed for
unmanned operation.
Contains risers from
WHPs. Facilities for pig
receipt and launching.
Normally no processing
facilities.
Supplies utilities for CPP.
Also provides
accomodation for operating
personnel.

4. Thai Nippon Steel Engineering and Construction Corporation
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
Overall Process Block DiagramOverall Process Block Diagram
CentralCentral Processing PlatformProcessing Platform
GasGas
Water
Oil
FSO
WHPWHP

5. Thai Nippon Steel Engineering and Construction Corporation
CentralCentral Processing PlatformProcessing Platform
A Typical Central Processing Platform
Consist of the following facilities:
– Inlet Manifolds
– Product Separator
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
The function of the Separator is to separate a mixed
phase stream into gas and liquid phases (Oil and water)
that are “relatively” free of each other
Inlet Device
Inlet Flow Distributor /
Calming Device
Plate Pack
Coalescer
Mist Eliminator
Weir Plate Vortex Breaker
Sand Jet
System
Gas
Water
Oil

6. Thai Nippon Steel Engineering and Construction Corporation
CPP Facilities (CPP Facilities (CotnCotn’’dd))
A Typical Central Processing Platform
Consist of the following facilities:
– Condensate Stabilizer
– Oil Metering and Export
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
What is Condensate Stabilisation?
To remove the light ends of HC (C3/C4/CO2) to achieve the sales condensate specification.
FSO
Gas
Water
Oil

7. Thai Nippon Steel Engineering and Construction Corporation
CPP Facilities (CPP Facilities (CotnCotn’’dd))
A Typical Central Processing Platform
Consist of the following facilities:
– Flash Gas Compression
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
Why is Required?
To compress and re-cycle the flashed gas from Condensate Stabiliser
to receiving facilities
Gas
Water
Oil

8. Thai Nippon Steel Engineering and Construction Corporation
CPP Facilities (CPP Facilities (CotndCotnd’’))
A Typical Central Processing
Platform Consist of the
following facilities:
– LP Feed Gas Compression
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
Why Feed Gas to be compressed?
Increase driving force across the CO2 Removal Membrane Unit
Reduce Membrane Area
Enhancement Heavy Hydrocarbon Separation
Gas
Water
Oil

9. Thai Nippon Steel Engineering and Construction Corporation
CPP Facilities (CPP Facilities (CotndCotnd’’))
A Typical Central Processing
Platform Consist of the following
facilities:
– Gas Purification [Mercury Removal]
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
Gas
Water
Oil
Why Mercury Removal is necessary ?
To prevent corrosion and cracking of material.
It’s hazard material when it accumulates in equipment, particularly during
plant turnarounds where equipment or piping is opened for inspection or
maintenance.

10. Thai Nippon Steel Engineering and Construction Corporation
CPP Facilities (CPP Facilities (CotndCotnd’’))
A Typical Central Processing
Platform Consist of the following
facilities:
– Gas Purification [CO2 Removal Unit]
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
Why CO2 Removal is necessary ?
In combination with water, CO2 is highly corrosive and rapidly destroys the
pipelines and equipment
Presence of CO2 reduces the heating value of natural gas stream
Presence of CO2 reduces pipeline capacity
Gas
Water
Oil

11. Thai Nippon Steel Engineering and Construction Corporation
CPP Facilities (CPP Facilities (CotndCotnd’’))
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
A Typical Central Processing Platform Consist of
the following facilities:
– MP Gas Compression (if Required)
– Natural Gas Liquid (NGL) Recovery
What is Natural Gas Liquid ?
Heavier hydro carbons (ethane, propane, butane iso-butane, etc) that recovered from
associated gas stream
Why need NGL recovery?
To Meet the Sales Gas Specification.
To purify by remove heavier hydrocarbons from associated gas stream
Expander
Compressor
Gas
Water
Oil

12. Thai Nippon Steel Engineering and Construction Corporation
CPP Facilities (CPP Facilities (CotndCotnd’’))
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
A Typical Central Processing Platform Consist
of the following facilities:
– HP Gas Compression
– Gas Metering and Export
Why is required ?
To increase Export Gas Pressure
GAS TURBINE
COMPRESSORAir
Inlet
Turbine Exhaust
BASEFRAME
GT C/P
Com
C/P
Gas
Water
Oil

13. Thai Nippon Steel Engineering and Construction Corporation
CPP Facilities (CPP Facilities (CotndCotnd’’))
Receiving
Facilities &
Inlet Separator
Mercury
Removal
CO2
Removal
NGL
Extraction
Export Gas
Compression
Condensate
Stabilization
Produced Water
Treatment
Flash Gas
Compression
Produced Water
Re-Injection
Feed Gas
Compression
A Typical Central Processing Platform Consist of the following
facilities:
– Produced Water Treatment Comprising of:
Desanders
Hydro cyclones
Induced Gas floatation Units
Water Disposal or Re-injection
Hydro-Cyclones
Accumulators
Why is required ?
To treat produced water before disposal
Follow regulation
Gas
Water
Oil

14. Thai Nippon Steel Engineering and Construction Corporation
Overall Block DiagramOverall Block Diagram –– UtilityUtility and Facilitiesand Facilities
CPP Facilities (CPP Facilities (CotndCotnd’’))
Fuel Gas
System
Flare
System
Closed Drain
System
Open Drain
System
Instrument &
Utility Air
System
Inert Gas
(N2)
System
Fresh Water
System
Main Power
Generation
System
Chemical
Injection
System
Utility /
Seawater
System
Material
Handling
System
Cooling
Medium
System
Hypo
Chlorination
System
Heating
Medium
System
Aviation Fuel
System
Emergency
Power
Generation
System
Diesel Fuel
System
Fire Water
System
DCS System
ESD
Fire and Gas
System
Platform
Crane

15. Thai Nippon Steel Engineering and Construction Corporation
QUESTION & ANSWERS
WELLHEAD
PLATFORM
CENTRAL PROCESSING
PLATFORM