135355-01-rep-06-012_update 19.5

THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102&106 – PHASE 1

TURN DOWN RATIO STUDY REPORT

Document Number 135355-01-REP-06-012

Project No.: 135355

00

19-05-14

Issued for Review

VHN

NVP

NTS

Rev

Date

Purpose of Issue

Prepared By

Checked By

PVE

PTSC

APPROVED

PVGAS Approval

THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

TABLE OF CONTENTS 1.0 

INTRODUCTION ............................................................................................................... 3 

1.1 

PROJECT DISCRIPTION .................................................................................................... 3 

1.2 

PURPOSE OF DOCUMENT ................................................................................................ 5 

2.0 

GENERAL INFORMATION AND REQUIREMENT ................................................... 5 

2.1 

LANGUAGE AND UNITS OF MEASUREMENT ............................................................. 5 

2.2 

ABBREVIATION AND DEFINITION ................................................................................ 5 

2.2.1  Definition............................................................................................................................... 5  2.2.2  Abbreviations ........................................................................................................................ 6  3.0 

BASIS AND ASSUMPTION .............................................................................................. 6 

3.1 

THERMO-DYNAMIC AND SIMULATION PACKAGE .................................................. 7 

4.0 

TURN DOWN & AVERAGE TEMPERATURE SIMULATION CASE SCHEME ... 8 

5.0 

TURN DOWN RATIO RESULTS AND CONCLUSION ............................................... 8 

6.0 

REFERENCE DOCUMENT............................................................................................ 12 

7.0 

APPENDICES ................................................................................................................... 12 

Document No.: 135355-01-REP-06-012 Rev. 00 Page No.: 2 of 12

THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

1.0

INTRODUCTION

1.1

PROJECT DISCRIPTION Thai Binh gas field was discovered in 2006 through Thai Binh-1X exploration well which discovered gas accumulation in two separate sand packages of Middle Miocene U220 (4 distinctly separate intervals, interval 1 to 4) and Lower Miocene U250 (2 distinctly separate intervals, interval 5 and 6). Total Thai Binh Gas Initially In Place (TB GIIP) of 139.8 Bscf was approved in Thai Binh - Reserves Assessment Report (RAR) 2010. However, due to the lack of evidence on the fault seal between the main area with the northern portion of interval 5, an upside potential of 30 Bscf remains to be unlocked during development phase. Thai Binh field development will focus mainly on the central area with a proven connected volume of 97Bscf in interval 3 and 5. In the event the northern portion is found to be isolated by a sealing fault, an additional long reach well might be required in the 11th year to sustain the 20 mmscfd required gas sale volume. Thai Binh development plan consists of a Wellhead platform (WHP) with minimum facilities. The gas will be sold ex-platform as full well stream (FWS) to shore via a 25 km pipeline. Thai Binh development is expected to deliver its peak gas production of 20 mmscfd from 2 wells. Individual well capacity can deliver the gas production up to 20 mmscfd. Thai Binh Field Development can be summarized as follows: -

To commit with Gas Sale Agreement (GSA) of 20 mmscfd for a period of 8 + 2 years on a commercially acceptable gas price.

-

To drill 2 wells to develop 74 Bscf of gas recovery from main sand of Miocene reservoirs (interval 3 & 5), and to prove up the northern area connectivity of 30 Bscf in interval 5.

-

Installation of a 3 legged well head platform with 4 slots.

-

Minor reservoirs to be developed later as behind casing opportunities i.e. add perforation or through infill drilling

Petro Vietnam Gas Joint Stock Corporation (PVGas) is responsible for the development of Thai Binh - Ham Rong Gas Distribution and Gathering System Project to transport gas from Ham Rong field (Block 106), Thai Binh field (Block 102) and Other fields (Hong Long, Sapa Nam, Hong Ha- Block 103 & 107) to industrial zones in Thai Binh and neighboring provinces in the North of Vietnam. Phase 1 of the Project includes facilities on Thai Binh Platform, Gas Distribution Center (GDC) and gas transport pipeline connecting Thai Binh field to GDC as followings: -

Platform topside facilities include Pig launcher and Corrosion Inhibitor skid.

-

Spool is installed for connections from Ham Rong field, other fields

-

Tie-in point for LNG exports FPSO in the future.

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THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

-

The pipeline from Thai Binh Platform to GDC shall be designed with additional capacity to service other platforms 106, 103 & 107. It shall include: ¾ Approximately 13.1 km from TBDP-A to LFP at Con Thu islet. ¾ Approximately 5.28 km from LFP to LFS. ¾ Approximately 5.8 km from LFS to onshore GDC.

In Tien Hai GDC, the 3 phase separator and filter/separator will be expected to install in order to separate water, flit solid object, take condensate and sale gas. Condensates will be stored and send out by truck loading system. Sales gas will be supplied to industrial customers via pipeline or by CNG trailers. According to the approved Field Development Plan (FDP), the First gas schedule is targeted on 15th June 2014. However, the above schedule will be updated according to the First gas schedule of Petronas Overseas SDN. BHD (PCOSB), expected to complete on Q2, 2015

Document No.: 135355-01-REP-06-012 Rev. 00 Page No.: 4 of 12

THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

Figure 2 – Onshore facilities 1.2

PURPOSE OF DOCUMENT The objective of this document is to propose turn down ratio about flowrate and duty of Equipments / Level control valves, Pressure control valves based on simulating cases of the Thai Binh - Ham Rong Gas Distribution and Gathering Project to ensure consistency and safety in operating equipment.

2.0

GENERAL INFORMATION AND REQUIREMENT

2.1

LANGUAGE AND UNITS OF MEASUREMENT The content, references, attachments and any supplementary information for all engineering documents shall be in English. Units of measurement for all engineering documents shall be in the System International (SI).

2.2

ABBREVIATION AND DEFINITION

2.2.1 Definition COMPANY

Petro Vietnam Gas Project Management Company (PVGAS-PMC)

CONTRACT

The EPC contract between COMPANY and CONTRACTOR for execution of the EPC works of

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THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

PROJECT EPC CONTRACTOR/ CLIENT

PETROVIETNAM TECHNICAL CORPORATION (PTSC)

SERVICES

PROJECT

Thai Binh – Ham Rong Gas Distribution And Gathering System Project, Block 102 & 106 – Phase 1

PURCHASER

As defined in the PO

PVE

PV Engineering J.S.C - An entity subcontracted by PTSC to perform the detailed engineering design.

VENDOR

The supplier of the materials, plant or equipment as determined by this Specification and other associated documents as attached to the Material Requisition

2.2.2 Abbreviations

3.0

GDC

Gas Distribution Center

LFS

Land Fall Station

LFP

Land Fall Point

API

American Petroleum Institute

ASTM

American Society for Testing and Material

BCV

Building Code of Vietnam

ISO

International Organization for Standardization

TCVN

Vietnamese Codes and Standards

TD(R)

Turn down (Ratio)

BASIS AND ASSUMPTION The following data, information and assumption are used to basic on modeling and showing the equipment turn down ratio at turn down condition as well as other condition. The selection and consideration case SS-4D in Flow Assuarance Report as turn down case with following condition:

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THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

AMB. Temp.

CASE

TURNDOWN CASE

SS-4D

OTHER CASEs

SS-1C/D/K; SS-2C/C1/G SS-3C/C1/G

Min

Total Flowrate, Mmscfd

10

Inlet Temp. @ TBWHP oC

38.38

Pressure, Barg

Temp, oC

TB

LFS

GDC

LFS

GDC

15.8

14.4

14

14.6

4.07

The detail results showns in Process Simulation Report 135355-01-REP-06-001

The Production specification and requirement to be kept same concept with all simulation cases The following provisions for pressure drop is considered in various equipments (these pressure drops to be updated after have final data from Equipments Vendors) Table 3.1: Pressure Drop in Various Equipments Pressure Drop Equipment

3.1

(kPa)

(psi)

Separator (Vessel)

20

2.900

Filter Separator

30

4.351

Heat exchanger

30

4.351

Heater

50

7.252

Metering

50

7.252

Pump

50

7.252

THERMO-DYNAMIC AND SIMULATION PACKAGE The process simulation models are built using the HYSYS Process Simulation Program, (Version v8.0). The Peng Robinson (PR) equation of state (EOS) has been selected as the fluid property package to generate process simulation. Design Compositions and flow rates to be used for this simulation are provided in the following sections, these dates are taken from document: “135355-01-BOD-04001_Process and Utility Basis of Design”

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THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

4.0

TURN DOWN SIMULATION CASE SCHEME

5.0

TURN DOWN RATIO RESULTS AND CONCLUSION The following results based on simulation cases thence taken turndown ratio for each of equipment / valve about flowrare as well as duty at corresponding units. The detailed result is tabulation below:

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THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

Table 5.1: The Turndown ratio result of Equipment /Valves in Thai Binh –Ham Rong Project

Unit

1

2

3

4

Desciption

GDC pressure control valve

Tag no.

PCV435

HP Separator LCV420A liquid outlet

Level control valve at LCV420B upstream LP Separator LP level control valve

LCV413A

Document No.: 135355-01-REP-06-012 Rev. 00 Page No.: 9 of 12

Required TDR

Actually TDR

(Min / Max)

(Min / Max)

Cases

Cv’s Opening

Cv’s Opening Flowrate (Am3/h)

Valve’s Cv

Remark

(Calculation)

(from FA)

Valve’s Cv

4D/3C

64.6/3480

10/90

712/4206

222.4/1308

19/55

Selection Requied Cv & Opening Following catalog Fisher’s Valve.

0.08/13.6

10/100

15 (*)

12.12

90

- Min Q (continuous) = 0.107 m3/h

(%)

(%)

- Max Q (surge liquid volume) = 15m3/h

4D 0.08/13.6

10/100

0.11/7.5

0.09/6.2

5/80

4D/3G

0.24/27.2

10/100

1.37/5.63

0.56/1.9

10/30

1C/3G

0.24/27.2

10/100

0.67/5.63

0.5/1.9

10/30

0.02/4.8

10/100

1.44

3.23

82

- Volume (LAH-LAL) = 93.56 m3

Selection Requied Cv & Opening Following catalog Fisher’s Valve Selection Requied Cv & Opening Following catalog Fisher’s Valve

THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

Unit

5

Desciption

Tag no.

Cases (in FA)

Required TDR

Actually TDR

(Min / Max)

(Min / Max)

Flowrate (Am3/h)

Duty (kW)

Remark

Duty

Flowrate (Am3/h)

(kW)

0.53/3

7.86/170

- Converted Ratio Q: 17.3/100

Condensate Heater 1C

-

- Converted Ratio Pow: 4.6/100

1/100 H401 (**) 4D

- Converted Ratio Q: 19/100 0.57/3

21.5/170 - Converted Ratio Pow: 12.6/100

6

LP Condensate Pumps

- Converted Ratio Q: 15/100 P402AB

4D

10/100

0.39/3

0.04/0.31

- Converted Ratio Pow: 12.9/100 - Volume working: 0.58 m3

Document No.: 135355-01-REP-06-012 Rev. 00 Page No.: 10 of 12

THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

Notes: General recommendation: The minimum flowrate of Pumps & Valves is shown based on the worst simulation cases at continuous condition. The maximum flowrate is calculated in on-specification condition in worst case such that covering system. Selection Requied Valve’s Cv as well as Opening follow catalog Fisher’s Valve. (See detailed in Appendix 2) Selection Requied Electric Heater’s duty follow catalog Vulcanic’s Vendor (Thyristor) and Chromalox. (See detailed in Appendix 3) The controlling concept will base on actual condition to have corrected suitable pump duty as well as opening percent of valve to ensure consistency and stabilization processing operating. These information shown on table as referency and the Selection Requied Cv & Opening percent of Valves will be finally confirmed and advise by Valve Vendor. Recommendation for valves LCV-420A/B (*): LCV-420A: In case of flowrate at 15 m3/h (maximum) and turndown flowrate at 0.11 m3/h required large range of valve opening. Therefor, consider to install a LCV line for normal operation case. LCV-420B: In case of volume flowrate at turndown condition is reducing more than max fowrate. The operator will supervised and considered valve’s opening percent suitable with actual condition to maintain gas / condensated level is consistency at NLL. About the range of valve opening level (%) will be clarified after had Vendor’s supply confirmed. Recommendation for valves LCV-413A (*): This valve will be operated at on-off stated corresponding with LAH-NLL (0.36 m3) in 15 minutes. The flowrate is used to size for this valve of 1.44 m3/h and will be confirmed by Valve Vendor when LP Separator’s dimension be available. Recommendation for Heater H-401 (**): The range of electric heater duty (%) will be clarified after had Vendor’s supply confirmed

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THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 & 106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

Recommendation for Pumps P-401A/B (***): Pump will operator at continuous condition to always maintain fluid to temperature exchange with condensate fluid. In case of turn down, the flowrate will be reducing appreciable. Considering install a bypass line with a LCV / globe valve to adjust back flow based on liquid arrival during operation modes to Heat exchange equipment to ensure steadily operating process. 6.0

7.0

REFERENCE DOCUMENT 1. 135355-01-REP-06-004

Flow Assurance Study Report

2. 135355-01-REP-06-001

Process Simulation Report

APPENDICES 1. THE SCHEME OF SIMULATION CASE 1C,3C,3G,4D 2. VENDOR CATALOG FOR SELECTING LEVEL CONTROL VALVE 3. VENDOR CATALOG FOR SELECTING ELECTRIC HEATER’s DUTY 4. P&IDs

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THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 &106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

APPENDIX 1 – THE SCHEME OF SIMULATION CASE 1C, 3C, 3G, 4D (05 Page including this cover)

Document No. : 135355-01-REP-06-012 APPENDIX 1_Rev. 00 Page No.: 1 of 1

THAI BINH HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT CASE SIMULATION : CASE 1 BASE CASE - MAX GAS (CASE 1C IN FA) Gas Sources: TB 2013 : 20 MMSCFD Min Pressure @ GDC : 14 barg Temperature @ WHP : 38.38 oC Max Ambient Temperature

Fuel Gas Heater DUTY

0.2692

Feed Temperature

kW

36.36

C

Product Temperature 51.49

C

SPRDSHT-1

3-Gas From Filter

A1: HCDew 28.53

Temperature 36.36

C

Pressure

1471

kPa

Molar Flow

19.76

MMSCFD

A Q_FG

op-102

1-To HP Separator Temperature 36.52

C

Pressure

1501

kPa

Molar Flow

20.00

MMSCFD

3-Gas From Filter

TB WHP 2013

To Fuel Gas System

TEE-100

Filter Separator F-401

BAL-3

Temperature 38.38

C

Pressure

1866

kPa

Molar Flow

20.00

MMSCFD

2-Gas To Filter

1-To HP Separator

FG To PCV

Fuel Gas Heater

To TEG

Liquid From Filter

Metering

Water in Oil

Water

A

TEE-102

Duty 3.508

W2

Oil in Water (ppm) 2000

13-Condensate From Heat Exchanger

kW

8-Fluid To Heater MIX-101

Actual Volume Flow

0.5285

m3/h

9-Fluid From Heater Actual Volume Flow

VLV-100

1

To Closed Drain Temperature

37.17

C

Pressure

131.3

kPa

Molar Flow

0.1781

MMSCFD

S SET-1

0.6718

m3/h

C

Pressure

kPa

151.3

8-Fluid To Heater

9-Fluid Heater From Heater

10-Fluid To LP Separator

LP Separator PCV

DUTY

7.863

14-Condensate To Tank

Q

LP Separator V-402

Heater

Pressure Drop

kW

B

20-To Oily Water Treatment

Condensate Tank TK-401

TVP @ 38 oC

64.54

kPa

TVP @ 45 oC

73.40

kPa

Water (% Volume) 0.3408

BAL-6

15-Condensate Product

Condensate Specification

TVP at 38_degC

B

P-101

11-Condesate From LP Separator

18-Off Gas to Flare

17-Vent

Closed Drain Vessel Water to Treatment System

1.000

Q_Heater

Gas to Flare

To Closed Drain

MIX-102

2.358

Vapour Fraction @ 250 barg 4oC

Temperature 75.00

BAL-5 6-Water from HP Separator

50.00

Mol composition (CO2+N2)

10-Fluid To LP Separator Q_Pump

Oil in Water

Water in Oil (%vol) 1.000

0.0000

Water content (mg/SCM)

P-100

Cond PreHeater

ADJ-2

Oil and Water Separation

Calorific Value (LHV MMBTU/SCM) 3.537e-002

12-Condensate To Heat Exchanger

Cond PreHeater

ADJ-1 Prod Header

Calorific Value (HHV MMBTU/SCM) 3.914e-002

Sales Gas Properties

7-Liquid From HP MIX-100 Separator

A

Sales Gas Specification

Sulfur Content (ppm)

L1 TEE-101

MMSCFD

GP

Water from TEG

Liquid HP Separator V-401

kPa

3.057e-002

250barg_4oC

ADJ-4

WHP Production

C

801.3

BAL-4

5-Sales Gas

A

TEG

48.53

Pressure Molar Flow

19-Fuel Gas

FG PCV

Temperature

B

4-Gas To Metering Skid

B TB WHP 2013

19-Fuel Gas

GP

ADJ-3

C

TVP at 45_degC

16-Oily Water From LP Separator

BASE CASE-MAX GAS-TEG.HSC

THAI BINH HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT CASE SIMULATION : CASE 7 MAX CASE - MAX GAS (CASE 3C IN FA) Gas Sources: TB 2013+HR+Other Fields : 53.4 MMSCFD Min Pressure @ GDC : 14 barg Temperature @ WHP : 28.6 oC Max Ambient Temperature

SPRDSHT-1 A1: HCDew

20.90

C

A GP

ADJ-3 Temperature

28.60

C

Temperature

29.01

C

Pressure

3525

kPa

Pressure

1501

kPa

Molar Flow

20.00

MMSCFD

Actual Volume Flow

4206

m3/h

3-Gas From Filter

TEE-100

HR from WHP

BAL-3

2-Gas To Filter

1-To HP Separator

28.60

C

Pressure

3525

kPa

Liquid HP Separator V-401

MMSCFD Other from WHP

7-Liquid From HP MIX-100 Separator

A Water in Oil

Water

Temperature

28.60

C

Water in Oil (%vol)

1.000

Pressure

3525

kPa

Oil in Water (ppm)

2000

Molar Flow

28.00

MMSCFD

VLV-100

ADJ-2

S

3.930e-002

Calorific Value (LHV MMBTU/SCM)

3.554e-002

Duty

6.220

kW

Sales Gas Properties

12-Condensate To Heat Exchanger

Q_Pump 13-Condensate From Heat Exchanger

Temperature

75.00

C

Pressure

151.3

kPa

Q_Heater

8-Fluid To Heater

9-Fluid Heater From Heater

Pressure Drop

Heater DUTY

17.10

Q

Condensate Tank TK-401

11-Condesate From LP Separator

18-Off Gas to Flare 10-Fluid To LP Separator

LP Separator PCV

kW

LP Separator V-402

B TVP at 38_degC

15-Condensate Product

Condensate Specification TVP @ 38 oC

59.63

kPa

TVP @ 45 oC

69.27

kPa

Water (% Volume)

BAL-6

14-Condensate To Tank 20-To Oily Water Treatment

0.0000

Vapour Fraction @ 250 barg 4oC

BAL-5

P-101

3.309

Mol composition (CO2+N2)

B

Water to Treatment System

50.00

Water content (mg/SCM)

17-Vent

Closed Drain Vessel

0.0000

Sulfur Content (ppm)

GP

Gas to Flare

To Closed Drain

SET-1

Cond PreHeater

MIX-101

1 MIX-102

A

Calorific Value (HHV MMBTU/SCM)

P-100

Oil in Water W2

250barg_4oC

Cond PreHeater

A

TEE-102 Oil and Water Separation

BAL-4

10-Fluid To LP Separator

ADJ-1 Prod Header

Other from WHP

6-Water from HP Separator

TEE-101

Metering

5-Sales Gas

ADJ-4 Water from TEG L1

Temperature

Sales Gas Specification

B

TEG

Liquid From Filter

19-Fuel Gas

FG PCV

4-Gas To Metering Skid

WHP Production

HR from WHP

op-102

FG To PCV

Fuel Gas Heater

To TEG

B

5.400

To Fuel Gas System

Filter Separator F-401

TB WHP 2013

Molar Flow

Q_FG

1-To HP Separator

TB WHP 2013

0.3344

TVP at 45_degC

16-Oily Water From LP Separator

MAX CASE-MAX GAS-TEG.HSC

THAI BINH HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT CASE SIMULATION : CASE 9 MAX CASE - MAX WATER (CASE 3G IN FA) Gas Sources: TB 2019+HR+Other Fields : 53.4 MMSCFD Max Pressure @ WHP : 35 barg Temperature @ WHP : 28.6 oC Min Ambient Temperature

SPRDSHT-1 A1: HCDew

-3.482

A

19-Fuel Gas

ADJ-3

Q_FG

TB WHP 2019 Temperature

28.60

C

Pressure

3601

kPa

Molar Flow

20.00

MMSCFD

3-Gas From Filter

TEE-100

Filter Separator F-401

TB WHP 2019

HR from WHP

BAL-3

2-Gas To Filter

1-To HP Separator

Temperature

16.52

C

op-102

Pressure

801.3

kPa

L1 Liquid

Temperature 28.60

C

Pressure

3601

kPa

Molar Flow

28.00

MMSCFD

HP Separator V-401

TEE-101

Other from WHP

Water in Oil

Water TEE-102

Water in Oil (%vol)

1.000

Oil in Water (ppm)

2000

ADJ-4

A

Sales Gas Properties

Q_Pump 13-Condensate From Heat Exchanger

Cond PreHeater Duty

15.93

MIX-101

kW

8-Fluid To Heater

9-Fluid From Heater Temperature

114.8

C

Pressure

1801

kPa

A VLV-100

m3/h

5.540

C

Pressure

1881

kPa

Molar Flow

1.900

MMSCFD

Actual Liquid Flow

1.671

m3/h

1.000

11-Condesate From LP Separator

C

Pressure

kPa

151.3

Q_Heater

9-Fluid Heater From Heater

DUTY

88.64

kW

To Closed Drain

18-Off Gas to Flare

10-Fluid To LP Separator

LP Separator PCV

LP Separator V-402

B

17-Vent

Condensate Specification

TVP at 38_degC

B

TVP @ 38 oC

63.65

kPa

TVP @ 45 oC

74.99

kPa

Water (% Volume)

6-Water from HP Separator Temperature

3.603

Vapour Fraction @ 250 barg 4oC

Heater Pressure Drop

Gas to Flare

1 MIX-102

50.00

Mol composition (CO2+N2)

Temperature 75.00

BAL-5

ADJ-5

0.0000

Water content (mg/SCM)

P-100

Actual Volume Flow 5.626

6-Water from HP Separator

3.442e-002

12-Condensate To Heat Exchanger

Oil in Water W2

3.810e-002

Calorific Value (LHV MMBTU/SCM) Sulfur Content (ppm)

GP

Cond PreHeater

ADJ-2

Oil and Water Separation

250barg_4oC

Calorific Value (HHV MMBTU/SCM)

10-Fluid To LP Separator

ADJ-1 Prod Header

BAL-4

5-Sales Gas

Metering

Copy 4 at 20mmscfd

7-Liquid From HP MIX-100 Separator

A

Sales Gas Specification

A

Water from TEG

MMSCFD

B

TEG

Liquid From Filter

3.057e-002

19-Fuel Gas

FG PCV

4-Gas To Metering Skid

WHP Production

Other from WHP

FG To PCV

Fuel Gas Heater

To TEG

B

2

GP

Molar Flow To Fuel Gas System

C

S SET-1

14-Condensate To Tank

Closed Drain Vessel P-101

Water to Treatment System

20-To Oily Water Treatment

0.1762

BAL-6

Condensate Tank TK-401

15-Condensate Product

TVP at 45_degC

Q 16-Oily Water From LP Separator

9 MAX CASE-MAX WATER-TE

s

THAI BINH HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT CASE SIMULATION : CASE 10 TURNDOWN CASE - MIN GAS (CASE 4D IN FA) Gas Sources: TB 2013 : 10 MMSCFD Min Pressure @ GDC : 14 barg Temperature @ WHP : 4.07 oC Max Ambient Temperature

Fuel Gas Heater 0.2940

DUTY

kW

3.879

C

Product Temperature 21.01

C

Feed Temperature

SPRDSHT-1

3-Gas From Filter

A1: HCDew -2.574

C

Temperature 3.879

A

Pressure

1471

kPa

Molar Flow

9.801

MMSCFD

Q_FG

op-102

1-To HP Separator Temperature

4.070

Pressure

1501

Actual Volume Flow 711.5

C kPa

3-Gas From Filter

m3/h

TB WHP 2013

To Fuel Gas System

TEE-100

Filter Separator F-401

BAL-3

Temperature 38.38 Pressure Molar Flow

1681 10.00

2-Gas To Filter

1-To HP Separator

To TEG

4-Gas To Metering Skid

Metering

MMSCFD

TEE-101

TEE-102 Oil and Water Separation

3.011

W2

2000

kW

m3/h

8-Fluid To Heater

m3/h

Pressure Drop

8-Fluid To Heater MIX-101

Actual Volume Flow 0.5709 9-Fluid From Heater

GTF used in PRV datasheet 6-Water from HP Separator

VLV-100

1

Gas to Flare

To Closed Drain

MIX-102

To Closed Drain 4.372

C

Pressure

131.3

kPa

Actual Volume Flow 0.1115

Actual Volume Flow 1.365

S

Temperature

4.372

C

Pressure

131.3

kPa

SET-1

P-101 Q

0.3936

Temperature 75.00

C

Pressure

kPa

21.50

2.366

kW

Vapour Fraction @ 250 barg 4oC

1.000

m3/h

LP Separator V-402

kW

B TVP at 38_degC

B

15-Condensate Product

Condensate Specification TVP @ 38 oC

61.81

kPa

TVP @ 45 oC

72.68

kPa

Water (% Volume) 0.2217

BAL-6

Condensate Tank TK-401

Mol composition (CO2+N2)

18-Off Gas to Flare

10-Fluid To LP Separator

LP Separator PCV

m3/h

20-To Oily Water Treatment

151.3

Heater DUTY

50.00

rpm

11-Condesate From LP Separator

Q_Heater

9-Fluid Heater From Heater

Water content (mg/SCM)

10-Fluid To LP Separator

14-Condensate To Tank Water to Treatment System

2.187e-002

BAL-5

Closed Drain Vessel

m3/h

Power

17-Vent

Water to Treatment System

Actual Volume Flow 0.1071

Temperature

Speed Capacity(Actual Vol. Flow)

13-Condensate From Heat Exchanger

Oil in Water

Water in Oil (%vol) 1.000 Oil in Water (ppm)

Duty

0.0000

Sulfur Content (ppm) P-100

Q_Pump

Cond PreHeater

ADJ-2

Calorific Value (LHV MMBTU/SCM) 3.488e-002

P-100

Cond PreHeater

A

Calorific Value (HHV MMBTU/SCM) 3.861e-002 250barg_4oC

BAL-4

12-Condensate To Heat Exchanger

7-Liquid From HP MIX-100 Separator

A Water in Oil

Water

MMSCFD Sales Gas Specification

Sales Gas Properties

Water from TEG

ADJ-1 Prod Header

5-Sales Gas

ADJ-4

Liquid HP Separator V-401

kPa

3.057e-002

GP

L1

kPa

C

801.3

Molar Flow

19-Fuel Gas

FG PCV

17.43

Pressure

A

TEG

Liquid From Filter

WHP Production

C

Fuel Gas Heater

416AB in

Temperature

B

B TB WHP 2013

19-Fuel Gas

GP

ADJ-3

C

TVP at 45_degC P-102150

1515 16-Oily Water From LP Separator 413A

CASE 10 TURNDOWN CASE-TEG.

THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 &106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

APPENDIX 2 – VENDOR CATALOG FOR SELECTING LEVEL CONTROL VALVE (03 Page including this cover)

Document No.: 135355-01-REP-06-012 -APPENDIX 2 _Rev. 00 Page No.: 1 of 1

THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 &106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

APPENDIX 3 – VENDOR CATALOG FOR SELECTING ELECTRIC HEATER’s DUTY (05 Page including this cover)

Document No.: 135355-01-REP-06-012 -APPENDIX 3 _Rev. 00 Page No.: 1 of 1

DATA SHEET FOR POWER CONTROL PANEL • •

500KW/400V/50Hz/Single Stage Main Incoming Rated @ 900 Amps

The power control panel is installed in safe area, indoor condition. FEATURES :

•

Type of electrical panel o o o o o o o

•

Material o o o

• •

Floor Mounted Fitted with mounting plinth 100mm Approximate overall dimensions: High = 2000 mm, Width = 1800 mm, Depth = 500 mm Weight : 650 kG Approximate Single tier enclosure. Lifting rings for handling and transportation. Protection class: min. IP 42.

Mild steel Colour manufacturers standard RAL 7035 Thickness of the panel:1.5 mm

Min/Max ambient temperature: 5°C/35°C. Cooling: o Fan with filter (+5°C/+35°C)

ELECTRICAL CONNECTIONS :

The panel is provided with a removable, undrilled and non-magnetic gland plate for the contractor cables. • • • •

Electrical supply: Bottom entry directly onto copper bars. Power outlets: Bottom entry directly onto copper bars. Auxiliaries and Sensors: Bottom entry onto terminals. Cable glands: Excluded.

CONTROL PANEL FUNCTION:

•

Rev 1

To control the power and monitor the temperature of one number 500 kW heater Tag No. TBC.

MODIFICATIONS

DATE

Made

Initial Enquiry

23/12/2013

BH

Made by : BH Date : 23/12/2013 Checked by: VE Date :

Chkd

Rev

MODIFICATIONS

DATA SHEET FOR POWER CONTROL PANEL 500kW Control Panel

DATE

Made

N° 202643-CPDS

Page

Chkd

Rev 1 1

/5

DATA SHEET FOR POWER CONTROL PANEL

TEMPERATURE REGULATION DEVICE CARRIED OUT BY :

• • •

Heater power will be controlled to achieve a preset outlet temperature. In Remote - Electrical power controlled by hardwired, proportional 4-20mA control signal with remote set point from DCS. In Local – Power to the heater would be controlled from panel mounted potentiometer with manual set point adjustment.

POWER CONTROL DESCRIPTION :

•

Power control: Power fed to the heater would be modulated from 1% to 100% as controlled by the 4-20mA control signal. Power regulation would achieved by thyristor ..

•

Power control device : The heater will be fully Thyristor controlled as follows:o

•

o o o o

1

Thyristor

The thyristor will be provided with high-speed fuse protection, and will have the following specification:o o

Rev

1% - 100%

Rated at 849 Amps Control technique: Burst or Single cycle zero crossover firing. The thyristors are cycled on for a period, and then off. By varying the length of the on period relative to the off period the power to the load may be controlled. Thyristor to modulate power in two of the three phases. Total Harmonic Distortion < 5%. Single Harmonic < 3%. Thyristor failure to include. • Fuse failure. • Over temperature detection on thyristors

MODIFICATIONS

DATE

Made

Initial Enquiry

23/12/2013

BH

Made by : BH Date : 23/12/2013 Checked by: VE Date :

Chkd

Rev

MODIFICATIONS

DATA SHEET FOR POWER CONTROL PANEL 500kW Control Panel

DATE

Made

N° 202643-CPDS

Page

Chkd

Rev 1 2

/5

THAI BINH – HAM RONG GAS DISTRIBUTION AND GATHERING SYSTEM PROJECT, BLOCK 102 &106 – PHASE 1 TURN DOWN RATIO STUDY REPORT

APPENDIX 4 – P&IDs (03 Page including this cover)

Document No.: 135355-01-REP-06-012 -APPENDIX 4 _Rev. 00 Page No.: 1 of 1