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"The Shah
project istargetingproduction of onebillion cubic feeta day of
sour orsulphur-richgas."
The Shah sour gas field is located around 180km southwest of Abu
Dhabi, in theUAE. Originally, the project was to be developed
jointly by Abu Dhabi National OilCompany (ADNOC) and
ConocoPhillips. In July 2008, both parties agreed todevelop the
project, and in July 2009 agreed to share the project cost. A
newcompany was expected to be set up to the project, where ADNOC
would have a60% stake and ConocoPhillips 40%.
In April 2010, however, ConocoPhillips declared its decision to
end itspartnership in the Shah gas project. ConocoPhillips said
that the decision was partof the company's shift in focus from
downstream and midstream activities towardsupstream exploration and
production activities. However, industry analysts feelthat the
estimated low returns from the project may have been responsible
for thedecision. The move is also being considered as the compan
attempts to improveits financial position after it adopted a failed
debt-financed acquisition strategy in2008.
ADNOC is expected to go ahead with the development of the
project and isplanning to take on a new strategic partner. Shell,
which was one of the four f irmsshort-listed for the project, is
being considered as the frontrunner for thepartnership.
Shah reserves
Abu Dhabi has over 200 trillion cubic feet of gas reserves and a
substantialportion of it remains unexploited. Sour natural gas and
condensate reservoirs willbe developed as part of the Shah
project.
The project is targeting production of one billion cubic feet a
day of sour orsulphur-rich gas and to convert 500 million cubic
feet of fuel and 10,000t ofsulphur for sale.
Bidding and studies
The Shah sour gas project was initially planned to be
developed along with the Bad field. The bidding fordeveloping
the Shah field started in April 2007.
However, the bidding companies were reluctant toundertake the
development of Bad field along with theShah field because of the
associated technical andenvironmental risks.
The development of Shah gas field was thereforedecided to be
made separately rather than with the Badfield. In August 2007, bids
f rom four companies werereceived for the Shah field
development.
In 2008, a 3D seismic survey was conducted over the field.
Technical studies
Shah Sour Gas Field, Unitedrab Emirates
Key Data
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1/23/13 Shah Sour Gas Field - Hydrocarbons Technology
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"The Shah sour
gas field will bedeveloped in tenmain packages."
"ADNOC mayopt for rail totransport thesulphur."
were carried out by Shell and ExxonMobil, while the conceptual
study was carriedby Fluor Corporation.
The FEED study for the project was completed by March 2009 and
individualoptimisation studies for the field's sour gas reserves
were carried out byOccidental and BP.
The EPC contracts are yet to be awarded and the project is
expected to becompleted by 2015.
Shah development packages
The Shah sour gas field will be developed in ten main packages,
focusingprimarily on the development of wells and gathering
systems, and the constructionof a gas sweetening and treatment
facility in Shah. The notice for open tenders forthe first four
packages was issued in May 2009.
The first package involves development of the gas gathering
system, whichcovers the development of wells, pipelines and
gathering lines. Package twoconsists of a process plant includes
four acid gas removal units, each with a 25%capacity, two natural
gas liquid (NGL) recovery trains with a capacity of 50% each,and
two condensate hydrotreater trains with 50% capacity each.
Package three will consist of four sulphur recovery units
with tail gas treatment units, each with a capacity of
25%.Offsites and utilities will be managed under packagefour.
Different pipelines - gas, condensate and natural gasliquids -
will be developed under package five. Package
six includes a 275km liquid sulphur pipeline to carry sulphur
from the Shah field toRuwais via Habshan.
Package seven involves the development of a terminal with a
liquid sulphurstorage capacity of 21,000tpd and 11,000tpd
granulation units. Storage facilitiesfor solid sulphur and marine
facilities for loading and export will be developedunder package
eight.
Package nine includes early work including construction of plant
roads, securityfences and support facilities. The non-process
buildings such as workshops,warehouses and vehicle maintenance will
be constructed under package ten.
Pipeline
Tendering for the sulphur pipeline package started in June 2009.
ADNOC is in theprocess of evaluating ways for transporting sulphur
from the field.
The company may opt for rail to transport the sulphur because
there is riskinvolved when dealing with sulphur by-products.
Shah contracts
The construction contract for package nine of the projectwas
awarded to Al Jaber Group in March 2010.
The scope of work includes building infrastructureincluding
roads and gas treatment plants.
The contract is valued at $300m.
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