Sinphuhorm Natural Gas Field Udonthani and Khon Kaen

Sinphuhorm Natural Gas Field
Udonthani and Khon Kaen Provinces (Phase I)
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Executive Summary
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EIA Approved: 2005
Project Location: Concession Blocks EU-1 and E5N in Udonthani & Khon Kaen
Provinces
Scope of the Project : Drilling, Construction, Installation, Testing, Commissioning and
Production phases for Wellpad A, B and C, Infield Flowline, 63 KM Pipeline and Gas
Processing Plant (GPP)
Infield Facilities
Camp
Site
Well Site
Well Site
(Future)
Wellpad
B
PH-3
Well Site
(South)
Wellpad
D
PH-1
Wellpad
A
PH-5
Phu Horm Pipeline
Gas Processing
Plant (GPP)
Well Site (North)
Wellpad
C
PH-4
Infield
Flowlines
Sales Gas to
PTT
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Executive Summary
EU-1
E5N
EU-1
E5N
Project Location
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Corporate Social Responsibility
Scholarship and Donation to
Schools and Healthcare Centers
Village improvement programs for
strengthening and sustainable
manner
Support for cattle bank project
modelled on King’s project
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Environmental Impact Assessment (EIA)
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Introduction
PTTEP SP Limited has
developed the Sinphuhorm
gas field in Petroleum
Concession Blocks E5N and
EU-1 in Northeastern to fulfill
the key objective of supplying
natural gas, via a pipeline, to
the Electricity Generating
Authority of Thailand (EGAT)
Nam Phong Power Plant.
Sinphuhorm came on stream
since November 2006 with a
production capacity of 135
million standard cubic feet of
gas per day (MMscfd).
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Project Description
The Sinphuhorm Natural Gas field EIA comprises the following key project elements:
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Infield Facilities: Facilities located within the Sinphuhorm area where the gas is
produced and gathered primarily comprising three Well Sites (Wellpad A, B and C),
Infield Flowlines, Access Road and a Camp Site.
Pipeline: The pipeline system which transports wellfluids from the infield facilities to a
gas processing plant. The pipeline length is about 63 km with a nominal diameter of 16
inches.
Gas Processing Plant (GPP): This facility processes the wellfluids to produce sales gas
for the Nam Phong Power Plant. The GPP was designed to produce up to 135 MMscfd
of sales gas, to handle about 100 barrels per day of produced water and 500 barrels
per day of condensate.
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Project Description
The project comprises the following 3 phases of activities:
1. Development Drilling Phase
2. Construction, Installation, Testing, and Commissioning Phase
3. Production Phase
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Project Description
1. Development Drilling Phase
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Project Description
2. Construction, Installation, Testing, and Commissioning Phases
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Project Description
3. Production Phase
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EIA Process
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Public Consultation
Consultation is an integral part of the EIA process and it encompasses 3 key
concepts:
• Information dissemination;
• An interactive, two-way flow of information, views and ideas between
stakeholders and the project proponent; and
• Participation, building on the consultation approach and involving the
project proponent and its stakeholders working in collaboration to identify
issues, evaluate outcomes and develop solutions.
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Public Consultation
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Public Consultation
The stakeholders include:
• Local government authorities;
• Provincial NGO groups;
• Provincial academic institutions;
• Permitting agencies;
• Provincial industrial groups; and
• The media.
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Potential Environmental Impact - Drilling
Noise
Drilling
Light and Heat Radiation
from Flaring
Potential impact
to communities
Exhausted Gas/Dust/
Traffic Congestion
Waste, Mud & Cutting
Approx. 3 months/well
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Potential Environmental Impact – Construction, Installation, Testing, and
Commissioning
Noise/Vibration
Soil Erosion
Construction,
Installation, Testing and
Commissioning
Potential impact
to communities
Exhausted Gas/Dust/
Traffic Congestion
Approx. 1 year
Waste, Hydrotesting Effluent
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Potential Environmental Impact – Production
Noise Level
Exhausted Gas/Dust/
Traffic Congestion
Production
Potential impact
to communities
Hazardous Materials Storage,
Processing and Handling
Approx. 15 years
Water Quality
Contamination
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Mitigation Measures
1. Noise/Vibration
• Engage with local communities and local officials to inform the project execution plan
and mitigation measures in advance, at least 1 week prior to the project commencement
• Selection of low noise equipment and noise enclosures and silencers
• Restrict works to daytime only
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Mitigation Measures
2. Exhausted Gas/Dust/Traffic Congestion
Accidents from Traffic Congestion
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Dampening of the access roads during the dry season
Installing of wheel wash basin to minimize soil residues stuck with truck wheels
Safety awareness training for drivers
Strict enforcement of Access Road speed limit (40 km/h)
Trip programming for oversized loads and avoiding the rush hours
Measures to repair damaged roads
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Mitigation Measures
3. Light and Heat Radiation
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24-hour standby of fire-fighting equipment/personnel
Flare stack height of 30-40 m above ground level to reduce heat radiation
Trimming of vegetation at a radius of 50 m from flare stack
Careful control/surveillance of flare system during UBD
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Mitigation Measures
4. Waste Management
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Provide the sufficient waste bins and segregate waste into 3 categories:
- Non Hazardous Waste - Regular waste collection
- Hazardous Waste – Licensed contractors delivering to approved disposal sites
- Recycle Waste– Disposed by approved re-user/recycler
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Mitigation Measures - Drilling
4. Drilling Waste Management
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Selection of drilling fluid constituents with low environmental impact
Concrete lined waste/ waste mud pits at the camp site/ well sites
Drill cuttings discharged directly into skips for offsite disposal
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Mitigation Measures - Construction
5. Hydrotesting Effluent
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Wastewater from all pressure testing which storage in ponds will not
release into Pong River or other water sources.
Wastewater quality from pressure testing and nearby water bodies will be
monitored.
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Mitigation Measures – Construction & Production
5. Soil Erosion
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Completed areas shall be restored / re-vegetated as soon as practicable
Regular inspections to monitor recovery of vegetation and any occurrences
of soil erosion. Repaired/ Vegetated as necessary
Pipeline route area shall be regularly inspected to monitor area and indicate
significant soil erosion
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Mitigation Measures – Drilling & Construction
6. Surface Water Quality
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Bund will be built surrounding drilling area with potential of contamination
limiting the construction activities only inside the Right of Way (ROW) and laying
down the underground pipeline at the intersection area of water sources or
natural water channel to be the temporary water drainage channel
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Environmental Monitoring Program
Parameters
Project Phasing
Drilling
Production
Ambient Air Quality
P
Construction,
Installation, Testing,
and Commissioning
P
Ambient Noise Level
Groundwater Quality
P
P
P
P
P
P
Surface Water Quality
P
P
-
Soil Quality
Soil Erosion
P
P
-
-
P
P
Insects & Birds
P
-
-
Flora
-
P
P
Hydrotest Water Quality
-
P
-
Stack Emission
-
-
P
Effluent Quality
-
-
P
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P
Corporate Social Responsibility
Support for cattle bank project modelled on King’s project
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Corporate Social Responsibility
Scholarship and Donation to Schools and Healthcare Centers
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Corporate Social Responsibility
Village improvement programs for strengthening and sustainable manner
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Contact Line
Public Relation Team – PTTEP SP Limited
Tel. 0-4337-3740 Fax. 0-4337-3767
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