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Projects
Project Name: Remediation
of Sungai Bera Holding Basin
Project Location: Seria,
Brunei Darussalam (Southeast Asia)
Owner’s Name: Brunei-Shell
Petroleum Co. Sdn. Bhd.
Project Description:
Envirosoil Limited (part of Municipal
Group of Companies) as part of a joint venture
with Jacques Whitford Environment Ltd., Inland
Oil and Haji Adinin & Sons are currently conducting
a world-class remediation project for Brunei-Shell
Petroleum Co. Sdn. Bhd. in Brunei, Southeast Asia.
The work is being conducted through their joint
venture company, Sungai Bera Remediation J.V.
Sdn. Bhd. (SBRJV).
The project encompasses the design & engineering,
management, equipment selection & procurement,
and excavation, treatment and disposal of approximately
160,000 tonnes of hydrocarbon contaminated sludges,
drill muds and soils deposited in three unlined
lagoons directly adjacent to the South China Sea.
In addition to the excavation and treatment of
contaminated sludges and soils, the scope of work
included the handling, cleaning and crushing of
approximately 5,000 drums containing highly contaminated
oil-based muds, as well as complete site restoration/re-vegetation.
The site includes producing wells and pipelines
throughout the treatment zone and encompasses
an area of 15 ha, with underlying sands and the
groundwater table close to the surface.
The project also includes the dewatering of lagoons
by well-point dewatering system; excavation of drill
muds and tank bottom sludges and underlying contaminated
soils; and backfilling of lagoons with treated sediments
and imported sands, followed by site re-vegetation.
The soils and sludges vary in hydrocarbon content
(<3% to >40%) and moisture content (<10%
to >35%) but are blended together to provide
a uniform feedstock to the gas-fired Low Temperature
Thermal Desorption (LTTD) plant with approximately
10-12% hydrocarbon content and 15 to 25% moisture.
The LTTD plant is processing this material at approximately
10 tonnes/hr and recovered hydrocarbon product (<2%
BSW) is delivered to our client for export crude
oil.
This project also includes a full HSE program
with health monitoring of workers and complete
atmospheric and emissions monitoring. A wastewater
treatment system is included to handle all contaminated
water sources. A full organic chemistry/laboratory
has been set up by the Joint Venture to provide
analysis of both feed materials to the LTTD plant
and all treated materials.
The project was awarded in November, 1999, with
site assessment, mobilization, equipment procurement,
set-up and commissioning completed by early September,
2000. As of July 2003, approximately 155,000 tonnes
of contaminated materials have been treated, including
approximately 70,000 barrels of recovered oil
treated and delivered back to the client. The
project is on schedule for completion in September
2003.
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