Download - Appendix-1 (HAZOPWorksheets) (1)
KU-0007-
PID-001
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action #
FCV not present 1. Install FCV
Air inlet filter damage2. Install block and bleed
arrangement
Possible liquid formation
FCV not present Install FCV
AIR inlet filter block
C Flow Reverse N/A N/A
Compressor control
malfunction
Inadvertent closing of any
inline isolation valve
E Pressure Low
1.FCV partially closed or
malfuntion
2. Inadvertent handling
3.Blockage of air filter
Line rupture
1. Deferred Production
2. Environmental Damage
1. Pressure transsmitter
available
2. SOPs in place
F Level High N/A
G Level Low N/A
N/A
n/a
1. Deferred Production
Flow
1. Deferred Production
2. High Pressure at
upstream
1. Pressure Transmitter
available
2. SOPs in place
3. Maintenance
procedures incorporated
B
Location
Ref. Drawings
Karachi University
Inlet of CompressorNode-1
Pressure High
1. High velocity may lead
to Erosion
2. Production loss
1. Proper monitoring of
pressure diffrential across
filter
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
flow MoreA
1. SOP of pressure
monitoring across air filter
is present
TemperatureH
Low / No
High
LowTemperatureI
D
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action #
E Pressure Low1.compressor triping
2.due to leakage
1. Deferred Production
2. Environmental Damage
1. Pressure transsmitter
available
2. SOPs in place
F Level High N/A
G Level Low N/A
1.temparature transmitter
available
compressor internal available
1. Deferred Production
2. production off spec.
1.Compresor trip
2.plant shutdown
3.chiller work not proper
1.SOP in line
2.chiller schedule
maintance in place.
I Temperature Low
1.TCV not working properly
2.chiller not working
properly
D Pressure High
1. High Pressure at
upstream
2. High velocity may lead
to Erosion
1.Compressor control
malfunction
2.HEX choke
1. Pressure Transmitter
available
2. SOPs in place
3. Maintenance
procedures incorporated
H Temperature High
1. inefficient working of
Chiller.
2.compersor malfunction
1.Compressor control
malfunction
2.antisurge valve
malfunction
3.may leads to leakage
KU-0007-PID-001
B Flow Low / No1. Production loss
2.plant shutdown1.SOP developed
A flow More
1. High velocity may lead
to Erosion
2. Production loss
3.comperssor tripping
1. Proper monitoring
2.high flow triping
available
1.Compressor control
malfunction
2.
Location Karachi University
Node-3 Chiller upstream and downstream
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Ref. Drawings
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action #
inlet FCV not present 1. Install FCV
Filter choke
Compressor control
malfunction
Inadvertent closing of any
inline isolation valve
E Pressure Low
1.inlet FCV partially closed
or malfuntion
2. Inadvertent handling
3.Blockage of air filter
Line rupture
1. Deferred Production
2. Environmental Damage
1. Pressure transsmitter
available
2. SOPs in place
F Level High N/A
G Level Low N/A
I Temperature Low n/a
1. Deferred Production
2. High Pressure at
upstream
1. Pressure Transmitter
available
2. SOPs in place
3. Maintenance
procedures incorporated
H Temperature High N/A
D Pressure High
A flow More
1. High velocity may lead
to Erosion
2. Production loss
1. Proper monitoring of
pressure diffrential across
filter
B Flow Low / No1. Production loss
2.plant shutdown
1. Proper monitoring of
pressure diffrential across
filter
2.SOP developed
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location Karachi University
Node-2 compressor Upstream
Ref. Drawings KU-0007-PID-001
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
Choke valve FCV-612 fail
open
FIC-612 malfunction
Compressor overspeed
Compressor by-pass valve
leakage or passes
FIC-671 malfunction leads
to fully open (more than
required)
FCV-672 stuck close
Inadvertent opening of
isolation valve of vent/PSV-
617A/B passing
Line rupture
1. Fire Hazard
2. Production Loss
3. Environmental Damage
1. F&G Detection are in
place
2. Pressure alarm low low
& trip (16-PALL-615)
Choke valve FCV-612 fail
close
Inadvertent closing of any
inline isolation valve
Choking of Cooler(E-1660)
tubes
C Flow Reverse
1. Compressor by-pass
valve leakage or passes
2.
1. More flow at
compressor suction
2. Deferred Production
NRV located at by-pass
Choke valve FCV-612 fail
close
1. High Pressure at
upstream
Inadvertent closing of any
inline isolation valve
Choking of FE-612
Compressor control
malfunction
Water slugging
FCV-671/672 stuck close
Choking of Cooler tubes
E Pressure Low
1. Choke valve partially
(less than required)
closed/FIC-612 malfunction
2. Wellhead shutdown
3. Inadvertent opening of
isolation valve of vent/PSV-
617A/B passing
4. Choking of cooler tubes
5. FCV-672 stuck open
1. Deferred Production
2. More flow towards FCV-
671
1. Pressure alarm low low
& trip (16-PALL-615)
3. SOPs in place
Line rupture
1. Fire Hazard
2. Production Loss
3. Environmental Damage
1. F&G Detection are in
place
2. Pressure alarm low low
& trip (16-PALL-615)
3. Adequate piping design
F Level High N/A
G Level Low N/A
2. Deferred Production
1. Pressure alarm low low
& trip (16-PALL-615)
2. Pressure alarm high
high & trip (16-PAHH-615)
3. SOPs in place
4. Maintenance
procedures incorporated
5. Pigging procedures in
place
D Pressure High
Flow More
1. High velocity may lead
to Erosion
2. Production loss
3. Low pressure at
compressor suction (A-
480)
1. Erosion Probe Installed
2. Adequate piping design
3. Compressor overspeed
trip
4.
B Flow Low / No
1. Deferred Production
2. High Pressure at
upstream
1. Pressure alarm low low
& trip (16-PALL-615)
2. Pressure alarm high
high & trip (16-PAHH-615)
3. SOPs in place
4. Maintenance
procedures incorporated
5. Pigging procedures in
place
Ref. Drawings 5007-11-16-10-PD-603-01, 5007-11-16-10-PD-604-01, 5010-11-16-10-PD-116-01
A
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-2 Downstream of Wellhead Latif-6 to the Suction of Wellhead Compressor A-470 & A-480 (FCV-671)
01 1ST OCT - 2012
Resp.Target
DatesStatus Remarks
5007-11-16-10-PD-603-01, 5007-11-16-10-PD-604-01, 5010-11-16-10-PD-116-01
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
Choke valve FCV-612 fail
open
FIC-612 malfunction
Compressor overspeed
Compressor by-pass valve
leakage or passes
FIC-672 malfunction leads
to fully open (more than
required)
FCV-671 stuck close
Inadvertent opening of
isolation valve of vent/PSV-
617A/B passing
Line rupture
1. Fire Hazard
2. Production Loss
3. Environmental Damage
1. F&G Detection are in
place
2. Pressure alarm low low
& trip (16-PALL-615)
Choke valve FCV-612 fail
close
Inadvertent closing of any
inline isolation valve
Choking of Cooler(E-1660)
tubes
C Flow Reverse
1. Compressor by-pass
valve leakage or passes
2.
1. More flow at
compressor suction
2. Deferred Production
NRV located at by-pass
B Flow Low / No
1. Deferred Production
2. High Pressure at
upstream
1. Pressure alarm low low
& trip (16-PALL-615)
2. Pressure alarm high
high & trip (16-PAHH-615)
3. SOPs in place
4. Maintenance
procedures incorporated
5. Pigging procedures in
place
Ref. Drawings 5007-11-16-10-PD-603-01, 5007-11-16-10-PD-604-01, 5010-11-16-10-PD-116-01
A Flow More
1. High velocity may lead
to Erosion
2. Production loss
3. Low pressure at
compressor suction (A-
480)
1. Erosion Probe Installed
2. Adequate piping design
3. Compressor overspeed
trip
4.
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-2 Downstream of Wellhead Latif-6 to the Suction of Wellhead Compressor A-470 & A-480 (FCV-672)
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
Ref. Drawings 5007-11-16-10-PD-603-01, 5007-11-16-10-PD-604-01, 5010-11-16-10-PD-116-01
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-2 Downstream of Wellhead Latif-6 to the Suction of Wellhead Compressor A-470 & A-480 (FCV-672)
Choke valve FCV-612 fail
close
1. High Pressure at
upstream
Inadvertent closing of any
inline isolation valve
Choking of FE-612
Compressor control
malfunction
Water slugging
FCV-671/672 stuck close
Choking of Cooler tubes
E Pressure Low
1. Choke valve partially
(less than required)
closed/FIC-612 malfunction
2. Wellhead shutdown
3. Inadvertent opening of
isolation valve of vent/PSV-
617A/B passing
4. Choking of cooler tubes
5. FCV-672 stuck open
1. Deferred Production
2. More flow towards FCV-
671
1. Pressure alarm low low
& trip (16-PALL-615)
3. SOPs in place
Line rupture
1. Fire Hazard
2. Production Loss
3. Environmental Damage
1. F&G Detection are in
place
2. Pressure alarm low low
& trip (16-PALL-615)
3. Adequate piping design
F Level High N/A
G Level Low N/A
D Pressure High
1. Pressure alarm low low
& trip (16-PALL-615)
2. Pressure alarm high
high & trip (16-PAHH-615)
3. SOPs in place
4. Maintenance
procedures incorporated
5. Pigging procedures in
place
2. Deferred Production
01 1ST OCT - 2012
Resp.Target
DatesStatus Remarks
5007-11-16-10-PD-603-01, 5007-11-16-10-PD-604-01, 5010-11-16-10-PD-116-01
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
01 1ST OCT - 2012
Resp.Target
DatesStatus Remarks
5007-11-16-10-PD-603-01, 5007-11-16-10-PD-604-01, 5010-11-16-10-PD-116-01
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
2. Pipeline rupture
2. Production Loss
3. Fire Hazard
4. Environmental
Consequences
2. Adequate piping design
1. Compressor trip1. Deferred Production
2. Water slugging
2. High Pressure at
upstream
Possibility of high level at
inlet separator (V-1,V-2)
PAHH-3932 alarm & trip
High level tripping
3. Inadvertent closing of
valve at manifold/tie-insDeferred Production
4. Line rupture
1. Production Loss
2. Fire Hazard
3. Environmental
Consequences
Adequate piping design
C Flow Reverse Refer reverse flow node-1
Refer to High pressure
node-1
Inadvertent closure of any
manual valve upto tie-in
High pressure leads to line
rupture
PAHH-3932 alarm & trip
1. Compressor overspeed1. Deferred Production
1. Compressor Trip
Pressure High
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-3 Discharge Flow Line of wellhead Compressor A-490
Ref. Drawings 5010-11-16-10-PD-115-01, 5003-11-16-10-PD-102-00,
A Flow More
B Flow Low / No
D
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-3 Discharge Flow Line of wellhead Compressor A-490
Ref. Drawings 5010-11-16-10-PD-115-01, 5003-11-16-10-PD-102-00,
Compressor trip Deferred Production
Low Compressor speed
Line rupture
1. Production Loss
2. Fire Hazard
3. Environmental
Consequences
Adequate piping design
F Level High N/A
G Level Low N/A
Temperature securities
available in vendor
package (Annex-01)
Consider installation of
Temperature Transmitter
at discharge of
compressor
Pressure LowE
High
I Temperature Low
H Temperature
02 2nd OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5010-11-16-10-PD-115-01, 5003-11-16-10-PD-102-00,
02 2nd OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5010-11-16-10-PD-115-01, 5003-11-16-10-PD-102-00,
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
2. Pipeline rupture1. F&G Detection system
2. Adequate piping design
3. Inadvertent opening of
any bleed valve1. SOPs in place
1. Compressor trip1. Deferred Production
2. Water slugging/High
level at inlet separator (V-
1)
2. High Pressure at
upstream
Possibility of high level at
inlet separator (V-1,V-2)
PAHH-3932 alarm & trip
High level tripping
3. Inadvertent closing of
valve at manifold/tie-insDeferred Production
4. Line rupture (will cause
no/low flow at
downstream)
Adequate piping design
5. Inadvertent opening of
any bleed valve
6. Malfunction of
compressor recycle valve
1. Deferred Production 1. Low pressure alarm at
compressor discharge
To be checked with
vendor for further
safeguards
C Flow Reverse No credible scenario
1. Water slugging
1. High Pressure at
upstream
Possibility of high level at
inlet separator (V-1,V-2)
PAHH-3932 alarm & trip
High level tripping
2. Inadvertent closing of
valve at manifold/tie-insDeferred Production
1. Compressor overspeedHigh velocity may lead to
erosion in piping
1. Compressor Overspeed
Tripping
2. Adequate piping design
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-4 Discharge Flow Line of wellhead Compressor A-470/A-480
D
B
Ref. Drawings 5010-11-16-10-PD-116-01, 5007-11-16-10-PD-604-01
A Flow
1. Production Loss
2. Fire Hazard/Asset loss
3. Environmental
Consequences
Flow Low / No
1. Production Loss
2. Fire Hazard
3. Environmental
Consequences
HighPressure
More
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-4 Discharge Flow Line of wellhead Compressor A-470/A-480
Ref. Drawings 5010-11-16-10-PD-116-01, 5007-11-16-10-PD-604-01
E 1. Compressor trip1. Deferred Production
2. Inadvertent closing of
valve at compressor
discharge
Deferred Production
3. Line rupture (will cause
no/low flow at
downstream)
Adequate piping design
4. Inadvertent opening of
any bleed valveSOPs in place
5. Malfunction of
compressor recycle valve
1. Deferred Production 1. Low pressure alarm at
compressor discharge
To be checked with
vendor for further
safeguards
F Level High N/A
G Level Low N/A
Temperature securities
available in vendor
package (Annex-01)
Consider installation of
Temperature Transmitter
at individual discharge of
compressors
Pressure Low
H Temperature High
I Temperature Low
1. Production Loss
2. Fire Hazard
3. Environmental
Consequences
01 1ST OCT - 2012
Resp.Target
DatesStatus Remarks
Wellhead compression for LATIF-06 AND LATIF NORTH-01
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
5010-11-16-10-PD-116-01, 5007-11-16-10-PD-604-01
01 1ST OCT - 2012
Resp.Target
DatesStatus Remarks
Wellhead compression for LATIF-06 AND LATIF NORTH-01
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
5010-11-16-10-PD-116-01, 5007-11-16-10-PD-604-01
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
C Flow ReverseD Pressure HighE Pressure Low
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-5 Latif-North-1 Sour Gas Conditioning Skid
Ref. Drawings 5003-11-16-10-PD-101-00, 5003-11-16-10-PD-105-00,
A Flow More
B Flow Low / No
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-5 Latif-North-1 Sour Gas Conditioning Skid
Ref. Drawings 5003-11-16-10-PD-101-00, 5003-11-16-10-PD-105-00,
F Level High
G Level Low
J Corrosion SS tubing shall be used
K Fire / Explosion
LPigging
Operation
M Maintenance
N Design Concern
The tie-in connection
from sour gas skid to be
taken of 1/2 inch for
compressor package
High
I Temperature Low
H Temperature
01 1ST OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5003-11-16-10-PD-101-00, 5003-11-16-10-PD-105-00,
01 1ST OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5003-11-16-10-PD-101-00, 5003-11-16-10-PD-105-00,
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
Instrument Gas FailureLow flow alram (FSL-
302,303)
PSV Passing
Inadvertent closure of
isolation valves for pumpsSOPs incorporated
Choking of strainerMaintenance procedures
incorporated/SOPs
C Flow ReverseTripping of low pressure
pumps (P-1608 A/B)
NRV installed at pumps
discharge
D Pressure HighInadvertent closure of
isolation valves for pumpsPSV available at discharge
Choking of strainer
Pump failure
Compressor trip
Inadvertent opening of any
bleed valveSOPs incorporated
Low
CI layer shall not be
formed leading to
corrosion in line
Preventive maintenance
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-6 Latif-North-1 Corrosion Inhibitor System
B Low / No
Ref. Drawings 5003-11-16-10-PD-102-00, 5003-11-16-10-PD-104-00,
A Flow More
Flow
CI layer shall not be
formed leading to
corrosion in line
PressureE
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-6 Latif-North-1 Corrosion Inhibitor System
Ref. Drawings 5003-11-16-10-PD-102-00, 5003-11-16-10-PD-104-00,
F Level High
G Level Low
I Temperature Low
H Temperature High
01 1ST OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5003-11-16-10-PD-102-00, 5003-11-16-10-PD-104-00,
01 1ST OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5003-11-16-10-PD-102-00, 5003-11-16-10-PD-104-00,
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
C Flow ReverseD Pressure HighE Pressure Low
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-7 Latif-06 Sour Gas Conditioning Skid
Ref. Drawings 5007-11-16-10-PD-603-01, 5007-11-16-10-PD-605-01,
A Flow More
B Flow Low / No
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-7 Latif-06 Sour Gas Conditioning Skid
Ref. Drawings 5007-11-16-10-PD-603-01, 5007-11-16-10-PD-605-01,
F Level High
G Level Low
J Corrosion SS tubing shall be usedK Fire / Explosion
LPigging
Operation
M Maintenance
N Design Concern
The tie-in connection
from sour gas skid to be
taken of 1/2 inch for
compressor package
High
I Temperature Low
H Temperature
02 2nd OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5007-11-16-10-PD-603-01, 5007-11-16-10-PD-605-01,
02 2nd OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5007-11-16-10-PD-603-01, 5007-11-16-10-PD-605-01,
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
Instrument Gas FailureLow flow alram (FSL-
639,640)
PSV Passing
Inadvertent closure of
isolation valves for pumpsSOPs incorporated
Choking of strainerMaintenance procedures
incorporated/SOPs
C Flow ReverseTripping of low pressure
pumps (P-1661 A/B)
NRV installed at pumps
discharge
D Pressure HighInadvertent closure of
isolation valves for pumpsPSV available at discharge
Choking of strainer
Pump failure
Compressor trip
Inadvertent opening of any
bleed valveSOPs incorporated
Preventive maintenance
Flow Low / No
CI layer shall not be
formed leading to
corrosion in line
E Pressure Low
CI layer shall not be
formed leading to
corrosion in line
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-8 Latif-06 Corrosion Inhibitor System
Ref. Drawings 5007-11-16-10-PD-604-01, 5007-11-16-10-PD-606-01,
A Flow More
B
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-8 Latif-06 Corrosion Inhibitor System
Ref. Drawings 5007-11-16-10-PD-604-01, 5007-11-16-10-PD-606-01,
F Level High
G Level Low
J Corrosion
K Fire / Explosion
LPigging
Operation
M Maintenance
N Design Concern
I Temperature Low
H Temperature High
02 2nd OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5007-11-16-10-PD-604-01, 5007-11-16-10-PD-606-01,
02 2nd OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5007-11-16-10-PD-604-01, 5007-11-16-10-PD-606-01,
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
A Flow More
Inadverdent opening of
Isolation Valves on
depressuring line
1. High Velocity
1.Globe valve at
depressing line in locked
closed.
2. SOPs are in placeN/AN/AN/AN/A
C Flow Reverse No credible sceniros
D Pressure High
E Pressure Low
F Level High
G Level Low
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-9 Latif North-01 & Latif-06 vent stack. (for Tie-ins)
Ref. Drawings 5007-11-16-10-PD-603-01, 5010-11-16-10-PD-116-01,5003-11-16-10-PD-101-00,5010-11-16-10-PD-115-01,
B Flow Low / No
Session No.
System
ID Guideword Deviation Causes Consequences Safeguards Recommendation Action # Action
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Location ENAR Head Office
Node-9 Latif North-01 & Latif-06 vent stack. (for Tie-ins)
Ref. Drawings 5007-11-16-10-PD-603-01, 5010-11-16-10-PD-116-01,5003-11-16-10-PD-101-00,5010-11-16-10-PD-115-01,
Low temperature due to
depressurization
1.Hydrate formation in
vent & drain line.1.SOP
J Corrosion
K Fire / ExplosionLightening occurs at the
time of venting.
1.Asset damage.
2. Loss of production.
1. SOP available.
2. Stack has been sized on
API-521 considering
radiation and dispersion.
LPigging
Operation
M Maintenance SOP
N Design Concern
1. Adequacy of existing
vent stack of latif-North-1
and Latif 06 to be
checked.
2. Back pressure as a
result of Venting of
Compressor at wellhead
PSV shall also be
checked.
High
I Temperature Low
H Temperature
02 2nd OCT - 2012
Resp.Target
DatesStatus Remarks
HAZOP WORKSHEET REPORTWELLHEAD COMPRESSION PROJECT AT LATIF-06 AND LATIF NORTH-01
Date:
Wellhead compression for LATIF-06 AND LATIF NORTH-01
5007-11-16-10-PD-603-01, 5010-11-16-10-PD-116-01,5003-11-16-10-PD-101-00,5010-11-16-10-PD-115-01,