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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
3Copyright 2016 JX Holdings, Inc.
Introduction -JX Nippon
4Copyright 2016 JX Holdings, Inc.
JX Nippon Business Activities
5Copyright 2016 JX Holdings, Inc.
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
7Copyright 2016 JX Holdings, Inc.
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
10Copyright 2016 JX Holdings, Inc.
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
11Copyright 2016 JX Holdings, Inc.
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
12Copyright 2016 JX Holdings, Inc.
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
Copyright 2016 JX Holdings, Inc.
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
14Copyright 2016 JX Holdings, Inc.
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
16Copyright 2016 JX Holdings, Inc.
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
17Copyright 2016 JX Holdings, Inc.
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
Copyright 2016 JX Holdings, Inc.
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
Copyright 2016 JX Holdings, Inc.
Feasibility Study and CO2 Huff’n’Puff test results indicatedCO2-EOR is technically applicable for Rang Dong Field
20Copyright 2016 JX Holdings, Inc.
-
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.
21Copyright 2016 JX Holdings, Inc.
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
22Copyright 2016 JX Holdings, Inc.
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.
Copyright 2016 JX Holdings, Inc.
Thank you for your attention