Offshore CO -EOR Pilot Project in Vietnam · PDF file26/06/1991 · CO2-EOR Project...

Offshore CO2-EOR Pilot Project in Vietnam

5th October 2016Yohei Kawahara

Atsushi Hatakeyama

Contents

2Copyright 2016 JX Holdings, Inc.

1. Introduction

2. Offshore CO2-EOR Pilot Project in VietnamFeasibility StudyCO2 Huff’n’Puff Pilot TestTest ResultsAlternative EOR Application- HCG-EOR

3. Conclusions

1. Introduction


Introduction -JX Nippon


JX Nippon Business Activities


Date of establishment : June 26, 1991 Head office : 1-2 Otemachi 1-chome, Chiyoda-ku, TokyoPaid-in capital : 9.8 Billion yenNumber of employees : 949 (as of March 31st, 2016)

UK

UAE / Qatar

Japan

Canada

USA (GoM, Onshore)

Brazil

Myanmar

Indonesia

PNG

Australia

Business ActivitiesThe UK North SeaThe U.S. CanadaThailandVietnamMyanmarMalaysiaIndonesiaAustraliaBrazilPapua New GuineaUAE / QatarJapan

Production Development Exploration

MalaysiaVietnam

Challenges for CO2 Reduction on JX Nippon’s E&P Business Activities

Copyright 2016 JX Holdings, Inc.

Zero Flaring, Abu Dhabi Zero Flaring & CDM Project, Vietnam

Re-inject CO2 and Sour Gas to

Reservoir

CO2 EOR Huff’n’Puff Pilot Test,Vietnam

Carbon Capture & CO2-EOR Project,

Acknowledged to DOE for this project granted as“Clean Coal Power Initiative Program”

HustonWA ParishCoal Power Plant

West RanchOil Field

Texas, USA

2000~ 2007~

2011 2016~

Pioneering CO2-EORfield application in SE Asia

JX Nippon continues “Challenges” in accordance with Company Mission Statement “Harmony with the environment”

USA

2. Offshore CO2-EOR Pilot Project in Vietnam


Rang Dong Field, Offshore Vietnam

8Copyright 2015 JX Holdings, Inc.Copyright 2016 JX Holdings, Inc. 8

Reservoir Properties Rang DongLM Reservoir

Criteria for Gas EOR

Reservoir Depth [m] 2,100 >650Reservoir Pressure [psi] 3,100 >1,030Reservoir Temp. [degF] 196 >90API Gravity [API] 38 >31Oil Viscosity [cP] 0.76 <5Oil Saturation [%] 50 >25Permeability [mD] 1-3,000 >5

Block 15-2 JVPC

E E E E

N

0 10 20km

S. R. Vietnam

HCMC

Vung Tau

Con Son Island

Mekong river

Block 15-2

11N

10N

9N

104E 105E 106E 107E

Rang Dong

1998 2000 2002 2004 2006 2008 2010 2012

Oil

Prod

uctio

n R

ate

Wat

er In

ject

ion

Rat

e

Oil Production RateWater Injection Rate

East WHPStarted to Produce

Central WHP Started to ProduceAnd Started Gas Lift

Water Injection Started

Add Water Injector （New Drilling or, Workover）

North WHPStarted to Produce

Reservoir Description

The field was discovered in 1994, andhas been produced since 1998.Current cum. oil production is 200Millionth bbl.

About 120 km offshore of Southern Vietnam

Rang Dong Field

CO2-EOR Project Scheme

To study the CO2-EOR applicability to the offshore oil fields in Vietnam through an international joint study between Vietnam and Japan

International Joint Study

Study agreement under MOU between PVN and JOGMEC


CO2-EOR Project History

2007-2010 Phase 1 Feasibility Study

2011-2014 Phase 2 Pilot Test

To evaluate the potential and feasibility of CO2-EOR to Rang Dong field

To confirm CO2-EOR effects in actual reservoir

Phase 1: Laboratory Study


1st Feasibility Study

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50

Gas Injection PV

Reco

very

Fac

tor

& W

ater

Cut

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

Gas O

il Ra

tio (c

c/cc

)

Recovery (Water) Recovery (Sales Gas1+LPG10%) Recovery (CO2)Water Cut (Water) GOR (Sales Gas1+LPG10%) GOR (CO2)

CO2: 93.1%

HCG: 72.7%

Water: 42.4%

Rec

over

y Fa

ctor

Wat

er C

ut (%

)

Gas

Oil

Rat

io (c

c/cc

)

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2,000 3,000 4,000 5,000 6,000 7,000 8,000

Saturation Pressure (psig)

Swel

ling

Fact

or

HCGCO2

Slim-tube TestIFT TestSolubility Swelling TestCore-flood Test

Injected CO2 and crude form “Miscible (completely mixed and form single phase)” under reservoir conditionCO2 flooding yield 2.2 times recovery factor against Water Flooding in Core Scale

Core-flood Test Swelling Test


2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026

2027

2028

2029

2030

Time

Oil

Prod

uctio

n

Phase 1: CO2-EOR Incremental Oil

No Development

CO2-EOR

Scenario AssumptionImport 1.0 Mil. ton CO2 per year for 7.5 yearsInject CO2 into Reservoir under Miscible ConditionRecycle Breakthrough CO2 for re-injection.Almost all the imported CO2 injected into reservoir in field end.

Special reservoir model constructed with Laboratory Study results for Evaluation of CO2-EOR Incremental Reserves.

Phase 1: Studies for CO2 Source and Facility Development/Modifications

1st Feasibility Study CO2 Source Study & Cost Estimation


At Rang DongNew facility for CO2 injection and RecyclingExisting facility to be modified for prevention of corrosion by CO2.

At CO2 sourceFacilities for CO2 Capture, De-watering & CompressionOnshore/Offshore Pipelines


CO2-EOR Project History

2007-2010 Phase 1 Feasibility Study

2011-2014 Phase 2 Pilot Test

To evaluate the potential and feasibility of CO2-EOR to Rang Dong field

To confirm CO2-EOR effects in actual reservoir

CO2 Huff’n’Puff Test -Objectives

15Huff Soak Puff

Inject CO2

Reservoir FluidInteraction

Soak ProduceOil,

Water & CO2 Merits on Huff’n’Puff

• Single Well • Short Test• Small CO2 Requirement• Minimum Impact to Facility

In order to confirm an effectiveness of CO2-EOR, a small CO2-EOR pilot test was conducted.

Three Stage Actions

To Confirm CO2 InjectivityTo Confirm Increased Oil ProductionTo Confirm Mechanisms of CO2-EOR

Objectives of H&P pilot test


Cap Rock

CO2

SeparatorTank

ReservoirMiscible Displacementby CO2 Injection

MiscibleOil Bank

CO2 Huff’n’Puff Test -Operation

- DST equips on Rig- CO2 injection equips on Vessel- CO2 contaminant flow isolated

from Existing Production System

Test Operation


0

10

20

30

40

50

60

70

80

90

100

0

500

1,000

1,500

2,000

2,500

3,000

5/23

5/24

5/25

5/26

5/27

5/28

5/29

5/30

5/31

6/01

6/02

Wat

er C

ut [%

]; C

hoke

Siz

e [ /

64"]

; CO

2 in

Gas

[%]

Oil

Rat

e [b

bl/d

]; G

OR

[scf

/stb

]

Date

0

10

20

30

40

02

API

60;

API

Water Cut Oil Rate

GOR

CO

2 In

ject

ion

950 bpd -> 1,500 bpd+550 bpd (1.6 times)

CO2

Concentration

Oil Increment by CO2 Huff’n’PuffOil Rate GOR BS&W Choke Size CO2 in Gas API 60

Pre-Flow Post-FlowSaturation

Logging

SaturationLogging while

Soaking

18

0

10

20

30

40

50

60

70

80

90

100

0

500

1,000

1,500

2,000

2,500

3,000

5/23

5/24

5/25

5/26

5/27

5/28

5/29

5/30

5/31

6/01

6/02

Wat

er C

ut [%

]; C

hoke

Siz

e [ /

64"]

; CO

2 in

Gas

[%]

Oil

Rat

e [b

bl/d

]; G

OR

[scf

/stb

]

Date

0

10

20

30

40

02

API

60;

API

Water Cut Oil Rate

GOR

CO

2 In

ject

ion

WC=50-60% ->0%

CO2

Concentration

Water Cut Reduction by CO2 Huff’n’Puff


Oil Rate GOR BS&W Choke Size CO2 in Gas API 60

Pre-Flow Post-FlowSaturation

Logging

SaturationLogging while

Soaking

CO2 Huff’n’Puff Test Results

19

Operation was successfully completed without anyoperational trouble and HSE issues

CO2 Huff’n’Puff Test provided following results;CO2 InjectivityOil Production IncreaseWater Cut ReductionOil Property Changes by CO2 injectionOil Saturation Changes before / after CO2 injection


Feasibility Study and CO2 Huff’n’Puff test results indicatedCO2-EOR is technically applicable for Rang Dong Field


-

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

20,000

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026

2027

2028

2029

2030

Time

Oil

Prod

uctio

n Ra

te [s

tb/d

]

E-1A, CO2-EOR(2014-,1.3MMton/y) E-1A, WI WI

-

2,000

4,000

6,000

8,000

10,000

12,000

14,000

16,000

18,000

20,000

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026

2027

2028

2029

2030

TimeO

il Pr

oduc

tion

Rate

[stb

/d]

E-1A, HCG-EOR E-1A, WI WI

CAPEX: US$ 1 Bil. CAPEX: US$100 Mil.

CO2-EOR HCG-EOR

Alternative EOR Application ~HCG-EOR~CO2-EOR can maximize ultimate recovery. However, HCG-EOR is more cost-effective application.

CO2-EOR project is temporary suspended. JX proceeded HCG-EOR toward commercial application.


HCG-EOR Application in Rang Dong Field

Water InjectorProducer

Platform Gas compressed On Central P/F

JX also succeeded HCG-EOR Pilot Test since 2012.

JX implemented HCG-EOR as the first commercial EOR since 2014.

3. CONCLUSIONS


3. Conclusions

23

JX planned and conducted 1st Offshore CO2-EOR Pilot Test in SEAsia, jointly with JOGMEC/PVN in 2011.

CO2-EOR is technically applicable, but economically challengingfor Rang Dong due to inconveniently located offshore project.Alternatively, JX has applied commercial HCG–EOR since 2014.

Technical experiences in Rang Dong Field highly encourage CO2-EOR business expansion. JX could achieve FID for CarbonCapture & CO2-EOR Project in United States, under “Clean CoalPower Initiative Program” granted by DOE.

JX continues development of CO2-EOR technology for maximizingoil production and reduction of CO2.


Thank you for your attention

Offshore CO -EOR Pilot Project in Vietnam · PDF file26/06/1991 · CO2-EOR Project...

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