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Oil and Gas Terminologies

Section II
Oil and Gas Production
Technologies
Oil and Gas Production Terminologies

Production System ’Christmas tree‘


3 phase
Gases separator

Crude + dissolved gases

Weir Plate Pure liquid (97% crude oil)

Centrifugal
Pump

July 24, 2024


3 phase
Feed Inlet
separator

Weir Plate

Crude + dissolved gases


Crude
Water
Centrifugal
Pump

July 24, 2024 4


There are two common methods of removing
the light ends to produce a stable crude oil:

A. Pressure reduction
B. Distillation in a stabilizer.
• Stabilizing by Pressure Reduction
( Flash Vaporization )
Stabilization by flash vaporization is a simple operation employing
only two or three flash tanks.

This process is similar to stage separation utilizing the equilibrium


principles between vapor and condensate phases.

Equilibrium vaporization occurs when the vapor and condensate


phases are in equilibrium at the temperature and pressure of
separation.
SET AT PC
1200 PSI GAS OUT
500 PSI
HIGH PC GAS OUT 50 PSI
FROM WELL
PRESSURE PC
SEPARATOR
GAS OUT
INTERMEDIAT
PRESSURE
SEPARATOR
LOW
PRESS
SEP

STORAGE
TANK

MULTI SEPARATION PROCESS


MULTIPLE FLASHES AT CONSTANT PRESSURE
AND INCREASING TEMPERATURE

GAS OUT
PC
FROM
WELL

LOW TEMP
SEPARATOR

INTRMEDIAT TEMP
SEPARATOR

HEAT HIGHTEMP
SEPARATOR STORAGE
TANK

HEAT

COOL
AIR COOLER
Louvers Automatic
Controlling gear

FAN

Jul 24, 2024


Surface Condenser
Water Outlet GAS

Hot Well

Water Inlet Condensate


PROCESSING WELL STREAM FLUIDS

Well Gas Gas


Head Oil/
Water
De-hydration Oil
Separator Sweetening Storage

Water+ Oil Oil


Oil
Export
De-Oiling

Water Disposal
Heavy
G Oil

Light
G Oil

Crude Oil Refinery


Kerosene

FLOATING ROOF
Naphtha

FIXED ROOF

Gasoline
Fire
Butane
ATF Slops
Water
VESSELS CLASSSIFICATION

1. ATMOSPHERIC

2. LOW PRESSURE

3. HIGH PRESSURE
Standards of
ATMOSPHERIC TANKS
API 650 Welded steel Tanks for oil storage
API 653 Tanks Inspection, Repair and Reconstruction
API 651 – Cathodic Protection of Petroleum Storage Tanks
API 575 – Inspection of Atmospheric and Low-Pressure
Storage Tanks.
API 2517 Floating roof tanks
API 2350 Overfill Protection for Storage Tanks
API 2000 Venting
ASME Section IX
Standards of
LOW PRESSURE TANKS

• API 620 Low Pressure ( < 15 psig )

• API 2350 Overfill Protection for Storage Tanks

• API 2552 Measurement& calibration of Spherical


Standards of
HIGH PRESSURE VESSELS

• ASTM SEC V111 Div 1& DIV 2

• API 2551 Horizontal Tanks calibration

API 2510 Design & construction of LPG


Storage
Storage Tanks
Tanks

FIXED ROOF SPHERICAL FLOATING ROOF

EXTERNAL
EXTERNAL INTERNAL
INTERNAL

PONTOON
DOUBLE DECK
OTHERS
Fixed-roof tanks

VAPOR AIR

OIL OIL
FIXED ROOF
Water sprinkler
Pressure
Foam Man hole Vacuum Valve
& Air

Hand
rail

Ladder

Cleaning
Drain hole
Valve
EXTERNAL FLOATING ROOF
Top circular
angle Wind Guarder Ladder

Drain
Valve
PONTOON
a. Pontoon Roofs
Wind guarder
Pontoon roof
Rolling Double Roof Seal
Ladder Deck Mechanism

Roof
Support

NR
Valve
Roof Drain
Flexible Hose
Drain
Valve
Cleaning
hole
Spherical Pressure Vessel

July 24, 2024 25


LOW
LOWPRESSURE
PRESSURESTORAGE
STORAGE
NODED
NODEDSPHEROID
SPHEROIDTYPE
TYPE

TIE RODS TRUSS

40,000 BARREL CAPACITY SAND CUSHION

July 24, 2024 26


Domed Roof Design Pressure
• API 620 – Low Pressure (0.5 < 15 psig )

July 24, 2024 27


Guide line to help in Petroleum products Tanks choice

FLOATING PRESSURE VAPOR


FIXED ROOF
ROOF STORAGE RECOVERY

VAPOR PRESSURE
LESS THAN 1.5 PSIA X
VAPOR PRESSURE
FROM 1.5 PSIA TO X
11.1 PSIA

VAPOR PRESSURE
>11.1 PSIA X X

Reference: EPA Environmental Protection Agency


STORAGE BASED ON (EPA)
FIXED FLOATING PRESSURE
ROOF ROOF STORAGE

CRUDE X

• KEROSENE,
• JET FUEL
• GASOLINE X
• NAPHTHA

• DIESEL
• GAS OIL
• FUEL OIL X
• ASPHALT

HYDROCARBON
ABOVE X
V.P 11.1 PSIA

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