develops first Gulf system for drilling waste management
Posted: 21 May 2004
The Abu Dhabi Company for Onshore Oil Exploration (ADCO) has developed
and implemented a comprehensive strategy for managing hazardous
drilling wastes,based on the "Golden Rules" : reduce,
reuse and recycle with a goal to mitigate the impact of its operations
on the environment.
Under the strategy at least 99.95 per cent of oil from cuttings
is reclaimed as a fuel and recovered water is used for garden irrigation.
''The thermal desorption process is "state of the art"
technology and the first implementation on a large scale in the
Gulf. Oil-based Mud (OBM) is recycled and reused by other rigs and
at least 99.95% of oil from OBM cuttings is reclaimed as a fuel.
The final cuttings leaving the plant, with <0.05% hydrocarbons,
are totally inert and used for manufacturing cement blocks. Recovered
water, with less than 10 ppm oil, is routed to develop green pastures
and trees around the thermal treatment plant, ADCO said.
The strategy, ''Total Solution to Drilling Waste Management'',
was the first of its kind in the Gulf region and gave the company
competitive edge win the top accolade in ADNOC 2003 HSE award for
Financially, the cost savings are estimated at 4.7 million dollars
a year. ADCO Drilling Division has been increasingly confronted
with problems related to the disposal of drilling hazardous wastes.
Last year, ADCO executed and integrated three environmental projects
in Asab and Habshan fields demontrationg total solutions for managing
wastes from drilling oil and gas wells.
''Such global approach of waste management is new to the region
experience would certainly benefit ADNOC group and other oil companies
in the world. Also, the thermal desorption plant could be used to
other oily wastes including tank bottom sludges and contaminated
resulting from oil spills,'' ADCO added.
''The new approach adds significant benefits for road safety by
eliminating more than 150,000 km for transporting heavy goods annually,
compared to previous hauling to Ruwais oil facilities.
ADCO is proud to be a pioneer in tackling the challenges of drilling
waste disposal and setting new benchmark for others to follow. BP
has already acknowleded ADCO OBM cuttings treatment plant and listed
as best environmental practice on BP global network.
A similar project is being executed by a BP subsidary in Azerbaijan.
The outcome of ADCO solutions is converting drilling hazardous
wastes through 100 per cent recycling into environmentally-friendly
and beneficially-used products exceeding ADNOC and international
standards without impacting human health and the environment.
''Such global approach is the first in the Gulf Region and is setting
a new benchmark for others to follow.
For more information see www.adnoc.com
Posted by Richard Price,
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