Storage and Loading

Storage and Loading Units

• Unit 1600 Refrigerant Storage

• Unit 3100 LNG Storage

•Unit 3400 LNG Loading

LNG 3

LNG 2

LNG 1

Fractionation 2

Fractionation 1

Domgas 2

Domgas 1

Stabiliser 5

Stabiliser 4

Stabiliser 3

Stabiliser 2

Stabiliser 1

Slugcatcher

C3

C4

Domgas Product

LNG Product

Condensate Product

Gas

Condensate

Gas

Heavy Ends

Heavy Ends

C2, LPG

C2, LPG

Condensate

Onshore Plant Layout

Unit 1600 Refrigerant Storage

Unit 1600 T1601 Ethane Refrigerant Sphere Overview

1V1421

16HYD03P1602

314FRC46 218FRC14 118FRC14 214FRC46 114FRC46

2E1803 1E1803

V1800

3V1421 2V1421

T1601

F

Unit 1600 T1602 Propane Refrigerant Sphere Overview

1V1422

T1602

F

3E1402

3E1422A3V1422

3E1442

3P1430

2E1810 1E1810

2E1822 1E1822

2E1809 1E1809

2P1820 1P1820

2E1422A 1E1422A

2E1402 1E1402

2E1442 1E1442

2P1430 1P1430

314HC109 214HC109 114HC109

218HC124 118HC124

218FC41 118FC412V1422

314FC43 214FC43 114FC43

V3503

E3502V3507

P3507

Refrigerant Storage

Ethane Refrigerant Rundown Flow

16HYD03P1602

314FRC46 218FRC14 118FRC14 214FRC46 114FRC46

2E1803 1E1803

V1800

3V1421 2V1421

T1601

F

1V1421

Propane Refrigerant Rundown Flow

T1602

F

3E1402

3E1422A3V1422

3E1442

3P1430

2E1810 1E1810

2E1822 1E1822

2E1809 1E1809

2P1820 1P1820

2E1422A 1E1422A

2E1402 1E1402

2E1442 1E1442

2P1430 1P1430

314HC109 214HC109 114HC109

218HC124 118HC124

218FC41 118FC412V1422

314FC43 214FC43 114FC43

1V1422

V3503

E3502V3507

P3507

Unit 1600 Ethane Transfer and Makeup

16HYD03P1602

314FRC46 218FRC14 118FRC14 214FRC46 114FRC46

2E1803 1E1803

V1800

3V1421 2V1421

T1601

F

1V1421

Unit 1600 Propane Transfer and Makeup

T1602

3E1402

3E1422A3V1422

3E1442

3P1430

2E1810 1E1810

2E1822 1E1822

2E1809 1E1809

2P1820 1P1820

2E1422A 1E1422A

2E1402 1E1402

2E1442 1E1442

2P1430 1P1430

314HC109 214HC109 114HC109

218HC124 118HC124

218FC41 118FC412V1422

314FC43 214FC43 114FC43

V3503

E3502V3507

P3507

F

Unit 3100 & 3400 LNG Storage and Loading

LNG Tank Wall and Floor Detail

9% Nickel Steel

Glass Fibre Blanket

Loose Perlite

PUF Insulation

Steel Outer Tank

Heating Element

Concrete

Bitumen SealantBitumen Sealant

Foam Glass

Dry SandDry Sand

Unit 3100 / 3400 Overview

Rundown Control

T3101 T3102 T3103 T3104

LNG Tr3 LNG Tr2 LNG Tr1

134 PC 01

234 PC 01

334 PC 01

434 PC 01

134MOV02 234MOV02 334MOV02 434MOV02

134UZ01 234UZ01 334UZ01 434UZ01134HC51 234HC51 334HC51 434HC51

Loading and Circulation Control Overview

T3102

FromT3101

To/FromT3101

FromT3103&4

To/FromT3103&4

To BOG To BOG

34MOV27 34MOV26

34HYD17

34HYD18

34HYD15

34HYD16

34MOV1434MOV13

34MOV10

34MOV12

34HYD79

34HYD78

34MOV147

34MOV32

34MOV34

34MOV36

34MOV37

34MOV148

34MOV149

34MOV150

34MOV33

34MOV3534MOV42

34HC80

34HC81

34HC82

34HC83

34HC84

34HC85

34HC86

34HC87

34FC0634FC0934FC12

34FC08

34FC11

34FC14

34FC02

34FC05

34FC49 34FC48

V3402

P3406

Loading Header

Loading/Circulation Header

Z3401D

Z3401C

Z3401B

Z3401A

P3408A/B

T3102

FromT3101

To/FromT3101

FromT3103&4

To/FromT3103&4

To BOG To BOG

34MOV27 34MOV26

34HYD17

34HYD18

34HYD15

34HYD16

34MOV1434MOV13

34MOV10

34MOV12

34HYD79

34HYD78

34MOV147

34MOV32

34MOV34

34MOV36

34MOV37

34MOV148

34MOV149

34MOV150

34MOV33

34MOV3534MOV42

34HC80

34HC81

34HC82

34HC83

34HC84

34HC85

34HC86

34HC87

34FC0634FC0934FC12

34FC08

34FC11

34FC14

34FC02

34FC05

34FC49 34FC48

V3402

P3406

Loading Header

Loading/Circulation Header

Short Circulation

P3412

P3408A/B

Long Circulation

T3102

FromT3101

To/FromT3101

FromT3103&4

To/FromT3103&4

To BOG To BOG

34MOV27 34MOV26

34HYD17

34HYD18

34HYD15

34HYD16

34MOV1434MOV13

34MOV10

34MOV12

34HYD79

34HYD78

34MOV147

34MOV32

34MOV34

34MOV36

34MOV37

34MOV148

34MOV149

34MOV150

34MOV33

34MOV3534MOV42

34HC80

34HC81

34HC82

34HC83

34HC84

34HC85

34HC86

34HC87

34FC0634FC0934FC12

34FC08

34FC11

34FC14

34FC05

34FC49 34FC48

V3402

P3406

Loading Header

Loading/Circulation Header

Z3401D

Z3401C

Z3401B

Z3401A

34FC02

P3408A/B

Loading Control Overview

T3102

FromT3101

To/FromT3101

FromT3103&4

To/FromT3103&4

To BOG To BOG

34MOV27 34MOV26

34HYD17

34HYD18

34HYD15

34HYD16

34MOV1434MOV13

34MOV10

34MOV12

34HYD79

34HYD78

34MOV147

34MOV32

34MOV34

34MOV36

34MOV37

34MOV148

34MOV149

34MOV150

34MOV33

34MOV3534MOV42

34HC80

34HC81

34HC82

34HC83

34HC84

34HC85

34HC86

34HC87

34FC0634FC0934FC12

34FC08

34FC11

34FC14

34FC02

34FC05

34FC49 34FC48

V3402

Loading Header

Z3401D

Z3401C

Z3401B

Z3401A

Loading/Circulation Header

P3406

P3408A/B

ESD1 Shutdown InitiationERS FUSE FAILURE

MANUAL INITIATION

JC 34HZ65

MANUAL INITIATION

CCR 34HZ64

SHIP INITIATION

34HZ100

LOW PRESS L/ARM

ERS HYD 34PZA32 - 35LL

ESD 2

LOW PRESS L/ARM

HYDRAULICS 34PZA77L

L/ARMS SLEWING ANGLE HIGH 34GZ56 - 68

L/ARMS APEX ANGLE HIGH 34GZ58 - 80

V3402 HIGH HIGH LEVEL 34LZA12

FIRE FIGHTING SYSTEMS ACTIVE

ESD 1

SHUTDOWN ALL LNG LOADING PUMPS P3401/2/3/4 OPEN ALL 34FIC08/11/14

START LOADING ARM HYDRAULIC PUMP

SHIP ESD 34UZ64/9

CLOSE ESD HYD VALVES 34HYD15/16/17/18

ESD 2 Shutdown Initiation

LOADING ARMS EXCESS SLEWING ANGLE 34GZ57-69HH

LOADING ARMS EXCESS APEX ANGLE 34GZ59-71HH

MANUAL INITIATION CCR 34HZ75

MANUAL INITIATION JC 34HZ76

ESD 2

INITIATE ESD 1

OPEN SURGE RELEASE VALVE 34HYD78/79

CLOSE DOUBLE BALL VALVE IN 5 SECS RELEASE COUPLING

CLOSE LNG MOV’S CLOSE VAPOUR RETURN

Vacuum Protection

T3101 T3102 T3103 T3104

134 PC 04

234 PC 04

334 PC 04

434 PC 04

From LNG From Domgas

Boil Off Gas System Control

T3101 T3102 T3103 T3104

K3410A/B

V3402

V3401 E3401A/B

P3409A/B

Ships Vapour Return

LNG Quench ex loading lines

LNG Return to tanks

To S&L Flare To HP Fuel GasTo S&L Flare

34PC0934PC66

134PC07 234PC07 334PC07 434PC07

34FC30

34LC21

34TC63

34URCA31

Pumpout System

T3101 T3102 T3103 T3104

LNG Run-down

Bleed Header

Run-down Header

Run-down Header

Loading Line

Load/Circ Line

Bleed HeaderBOG Header

Ship Vap Ret

Flare Header

P3405

END OF OVERVIEW

Procedure For LNG Loading• LNG Loading Preconditions• Move the LNG Loading arms• Connect the LNG loading arms• Pressure Test• Cooldown of Loading Arms• Start loading LNG• Complete LNG Ship Loading• Draining / Purging the Arms• Reinstate Circulation• Disconnect the Arms and Park

LNG Loading Preconditions

1. Shipping checklist has been completed

2. Emergency systems are lined up and charged.

3. All loading arm valves are in the correct position

4. Close the Nitrogen supply to the selected loading arms and depressure.

5. Ensure drain valves are closed after completion of depressuring.

6. Select the correct radio ESD ink for the project or non project ship. Ensure that a healthy link is indicated.

7. Ensure that the correct equipment and interlock keys are available to carry arm movement and connection. Inter lock keys are used to ensure the QC/DC function can only be activated when the arm is connected to the ships manifold and is in the correct mode.

8. Two Boil Off Gas compressors are available for handling vapour return from the ship to shore.

Move the LNG Loading arms • After completing previous pre checks1. Move gangway over to ship and ensure and it free to move with tide. Operator will

attend pre ship loading meeting on board the ship at this time. 2. On the Jetty Head Console an arm selector switch enables each arm to be

selected for movement. A “Neutral” position is also available. 3. Select the LOADING/MANOUVERING switch to the MANOUVER for the correct

arm. Loading is selected at the appropriate time to enable loading to commence4. The arms will show signs of frosting if any liquid has been passing into them. This

should be checked for and the arm should also be checked for damage to the structure, wires, hoses and fittings.

5. .Verify controller RCU (Remote Control Unit –Field Isolation Switch) is ON to appropriate valves (These valves are isolated to prevent accidental opening)

6. Hydraulic systems are Supplied for ESD functions and manouvering the arms. These should be checked for correct pressures.

7. Select a manouvering hydraulic supply pump and the stand by pump and switch it on.

8. Arms can be manourvered from the J H C or by the use of a PENDANT box (Radio control). Select the desired mode. NOTE. The vapour arm should always be connected first.

9. Unlock the outer and the inner arm and slew locks. (Park locks)10. Take the required equipment over to the ships manifold area.11. Select the arm to be moved on the arm selector switch and manouver it over to the

ship manifold using the pendant box.

Connect the LNG loading arms• Once the arm is alongside the manifold on the ship1. Remove blank from 25 mm QC/DC (Quick Connect/DisConnect) drain. Open valve

to check proper depressurisation of the arm. 2. Operate the interlock keys in the correct manner to enable the QC/DC coupler to

be opened. Using the pendant box open the QC/DC. 3. Remove the QC/DC blank flange. Clean the face and fit “Teflon” gasket.4. Select the SLOW speed on the pendant box and manouver the arm to the

manifold face. Ensure that the QC/DC face is parallel to the manifold face before locking the coupler.

5. Rotate the QC/DC coupler to place the guide pins in a position which will correctly align the coupler.

6. Close the QC/DC fully using the pendant box.7. Activate the QC/DC lock by rotating and removing the relevant key. Test the

coupling by attempting to give it an open signal. 8. Activate the ERS (Emergency Release System) by activating the key which was

removed in previous step. Remove the loading key and take to JHC. 9. Close the QC/DC drain and refit blank.10. Repeat the previous steps to connect the other arms.

Pressure Test • Confirm that valve line up is correct and ships manifold block valve

is closed.1. Inform the ship of your intention to conduct a pressure test.2. Activate over ride of Nitrogen back flow protection system. This protects against

hydrocarbon contamination of Nitrogen system.3. Open Nitrogen pressure control bypass. The pressure control valve is not sized to

allow the flows required for testing. The bypass is supplied for this purpose. 4. Pressure the Vapour return arm up to 200kpa.5. Leak test the QC/DC joint using a soap solution spray. 6. Depressure the arm to shore at the strainer drain.7. Depressure any remaining pressure at the ship manifold vent.8. A test for oxygen at the manifold vent is carried out at this time by ships personnel.

9. Repeat the previous steps for the remaining arms, pressuring up to 400kpa before

leak testing.NOTE. If the joint leaks the arm must be fully depressured before any attempt is made to

remove it from the manifold.10. Close Nitrogen pressure control bypass valve and request panel operator to

deactivate Nitrogen back flow protection over ride.

Cooldown of Loading Arms1. Using loading key removed from QC/DC previously switch to LOADING position

on the Jetty Head Console.

2. The ESD link previously established between the ship and shore to be healthy.

3. Ship will advise when ready to carry out ESD 1 test. Panel operator will shut down long circulation pump to minimise surge on jetty head when the HYDraulicly operated shutdown valves on the jetty head close.

4. When ready CCR will initiate an ESD 1 and check that the HYD valves have closed. NOTE. ESD 1 stops loading and closes loading valves and ESD 2 releases ERS and arm swings away from the ship.

5. On completion of ESD 1 Test the ship will switch to INHIBIT to enable reset of ESD 1 signal from shore.

6. When directed, open loading shutdown valves exercising care to equalise pressures by opening slowly.

7. Start a loading pump to establish long circulation to jetty head with correct flows.

8. Switch the hydraulic supply pump motor to automatic. This will supply hydraulic pressure on an as needed basis only.

9. Jetty operator will power up the valves ready for operation remotely from CCR.

10. When directed by the loading master open the relevant vapour return valve.

11. Open Loading line isolation Motor Operated Valve valve.

12. Close the cool down Hand Controllers, open the cool down valves and open the loading HC’s 15 %. ( This is to ensure section of pipe work between loading hand controller and loading valve which is still closed is cooled to correct temperatures.)

13. Select the appropriate Flow Indication range on the arms to monitor cool down flows. FI’s are sized to measure flows up to 10000m3/hr and so need a smaller range to handle the relatively small cool down flows.

14. When requested commence cool down by opening the cool down HC’s.

15. Once flows have stabilised adjust the cool down rates to 15 m3/ hr. Maintain this rate until requested by the loading master.

16. When requested by the loading master increase the flow to 115 m3/hr. When the arms and manifold are cooled down the ship will perform a stroke test on the ship valves.

17. Panel operator will start the loading pumps at this point to have them available for loading as required.

18. Reset kick back controller before starting pumps. Once proper indication is achieved place controller in MAN and set output at 80%. Start pump and wait for kick back flow to indicate. As flow stabilises close in controller until a flow approaching 885 m3/ hr is achieved, then place controller in AUTO. Open the forward flow controller to 5% in MAN.

Start loading LNG

On completion of cool down with a loading pump on long circulation to the jetty head and a flow of 115 m3/hr to the loading arms the shore is ready to supply LNG to the ship. Each tank should have a loading pump running on kick back and the short circulation pump running.

1. The ship will request a loading start with a rate of 1000 m3/hr. Maintain cool down flow until up to 1000 m3/hr when the cool down HC and isolation valve can be closed. Once the cool down isolation valve is closed the HC should be opened to 20% to prevent pressure build up between these two valves.

2. Open the loading valves and increase loading rate to 1000 m3/hr. 3. Adjust loading HC’s to maintain a constant line pressure between 400 and 450 kpa

in the loading arms This pressure is required to ensure proper operation of the LNG analysers fitted to the loading lines Start pumps as required and increase loading maximum loading rate of 10000 m3/hr is achieved. ( This is the maximum rated capacity of the loading lines). Maximum loading rate is achieved using 8 pumps (2 on each tank) set at a forward flow of 1250 m3/hr.

4. Short circulation pumps should be shut down as pumps are started on each tank.5. The 2nd BOG compressor can be shut down when loading rates plateau and

conditions are suitable (flow less than 650 tpd – temperatures colder than -80 deg C)

Complete LNG Ship Loading

1. Ship will inform the panel operator that they are approaching full load. They will ask that the loading rate be reduced to 9000 m3/hr. Reduce the loading rate in reasonable steps to achieve this. Advise the ship when you have reached this rate.

2. The ship will request continued reduction in loading rates in 1000m3/hr increments down to a full stop. As the rates are reduced pumps can be shut down when they approach full recycle flow.

3. Loading arm pressures should be maintained at 400 to 450kpa during ramp down.4. On a “CARGO STOP” request from the ship close the loading HC’s and stop the

last pump. Close the loading MOV’s. Closing the HC’s immediately will prevent any back flow which would drain the loading lines. Draining the loading lines will create vapour space which will cause surging and hammer when long ciculation is restored.

Draining / Purging the Arms1. The remaining liquid in the arms must be drained to the SURGE drum located on

the end of the jetty. Ensure that the valve line up from the arms to the surge drum is correct. Start the surge drum drain pump and make sure the drum is at a low level. If left at a high level during draining the surge drum will go into HIGH alarm and shut the incoming flow from the arms. This alarm will not clear until the level has been reduced.

2. Ensure that all ship and shore valves are closed.3. Open the loading HC’s to allow the arms to be drained via the strainer drains.4. Once approved by loading master pressure the arm to 400 kpa using nitrogen.

Use the same procedure as before for the supply of Nitrogen. 5. Drain the outer arm to the ship. This is controlled by the loading master and will

continue until the arm is liquid free.6. Drain the inner arm to the surge drum on the jetty. Draining should progress in a

manner to ensure the surge drum does not go into a high level alarm. After liquid freeing, the arms should be “Piston purged” via the strainer drains. The loading HC can now be closed.

7. Inform the loading master that the shore side is purged and that the HC is closed.8. The ship will now purge from the manifold drain. The methane content in the

purge stream will be checked and the arm considered purged when the purge stream is less than 2%.

9. Isolate the nitrogen supply to the arm and depressure via the QC/DC drain valve. This procedure is used to drain both loading arms.

1. The vapour return valves from the ship and the shore side MOV can now be closed and the vapour arm purged.

2. Open the nitrogen supply to the arm and pressure to 200kpa.

3. Purge this arm into the ships tanks until gas free. When confirmed as gas free close the ships depressuring valve. Close in the nitrogen supply.

4. Depressure the arm to atmosphere at the ships manifold drain.

5. Repeat this procedure for all arms to inert prior to removal.

6. Close in Nitrogen supply and return to normal operating mode.

The arms can now be removed from the manifold and returned to the park position.

Reinstate Circulation

• Long Circulation1. Close the loading line isolation valve.

2. Line up valves to allow long circulation to commence.

3. Start the circulation pump and

• Short circulation1. Line up valves to allow short circulation.

2. Start the circulation pump and open the forward flow controller in AUTO to maintain a flow of 450m3/hr.

Long circulation is normally established on the LNG tank at the extremity.

Disconnect the Arms and Park• Arms are drained and depressured.

1. Select the following at the JHC:-

Hydraulic pump on

Select the arm to be disconnected

Select “pendant control” on the JHC selection station.

Select “manouvering” on the switch on the JHC and remove the key to be used for deactivating the ERS on the arm to be disconnected.

2. Confirm the arm is depressured using the QC/DC drain valve.

3. Deactivate the ERS using the correct key.

4. Transfer the activation key to the QC/DC and activate the hydraulic supply to open the QC/DC. Open the QC/DC using the pendant box and move the arm back from the manifold.

5. Inspect the flange faces for damage. Remove the teflon seal and place it back in the storage box. Swing the blank flange back into position and close the QC/DC. Activate the QC/DC lock by removing the activation key. Attempt to open the QC/DC using the pendant box.

6. Move the arm back to the park position and engage the park locks. The slew lock should be engaged first followed by the inner and then the outer arm locks.

• Care should be exercised by the operator when moving arms and operating park locks as the arm may still have large quantities of ice on them. Large pieces of falling ice can be dangerous.

7. These procedures should be followed to remove the remaining loading arm and the vapour arm.

8. Reinstate the nitrogen pressure supply to the arm. This maintains a pressure of 200kpa in the arms at all times to ensure no possible ingress of air into the arms.

9. Select the following on the JHC:-

Hydraulic pump to “auto”.

Arm selector to “neutral”

JHC selected on the control station.

10. Shut down the surge drum drain pump when level is acceptable.

11. Return the pendant control box, keys and equipment to correct locations. Ensure batteries are charged in preparation for next ship.

Custody and ship loading documentation should be taken to the ship and ships documentation returned to shore.

12. The gangway can now be removed from the ship and secured.

Ship loading is now complete.

Mooring crew will now release the ship from the jetty and the ship will depart the berth.