Fluor and WorleyParsons designed Tengiz Expansion
The California-based international oil company (IOC) Chevron Corporation (Chevron) and its partners, the Kazakh national oil company (NOC) KazMuniaGas (KMG), the global leader ExxonMobil and the Russia company LukArco (Lukoil) are closely reviewing the offers of the engineering companies to award the engineering, procurement and construction (EPC) contract for the Future Growth Project (FGP) to expand the Tengizchevroil (TCO) oil field on the west side of Kazakhstan.
Covering 2,500 square kilometers near the Caspian Sea, the TCO oil field development includes the Tengiz field, the Korolev field and some other prospects to be developed.
Together with the Korolev and associated fields, Tengiz is estimated to hold up to 9 billion barrels of recoverable reserves of crude oil from about 26 billion barrels of in-place reserves.
Despite its large size, Tengiz had been left undeveloped during decades because of its technical challenges.
The first tests had indicated that Tengiz reservoir should accumulate high temperature, high pressure and high hydrogen sulfide content requiring skill of art expertise most advanced technologies.
In 1997, LukArco (Lukoil) took share in the TCO joint venture so that the working interests stand currently between:
– Chevron 50% is the operator
– ExxonMobil 25%
– KMG 20%
– LukArco 5%
Local content required for TCO Future Growth Project
Since its first development, Tengiz production has been supported by the construction of crude oil processing facilities called Complex Technology Lines (CTL) to separate the associated natural gas, the liquid petroleum gas (LPG) and the hydrogen sulfide.
If not carefully controlled, this re-injection of large quantities of sour gas may destabilize the crude oil reserves and turn Tengiz even more complex to develop.
In May 2012, TCO awarded the front end engineering and design (FEED) and engineering, procurement and construction management (EPCM) contract for the Wellhead Pressure Management package of the Tengiz Future Growth Project to a team led by Fluorand supported by WorleyParsons and the Kazakh Institutes KING and KGNT.
With the Future Growth Project, Chevron and its partners are planning to increase this capacity from the current 260,000 barrels per day to 780,000 b/d in two phases.
To proceed to the Tengiz Expansion, Chevron developed with his partners a new technology named Second Generation Plant (SGP) associated to Sour Gas Injection (SGF) facilities.
These crude oil processing SGP and SGF facilities will support the drilling program to add 190 wells in the Future Growth Project for a capital expenditure of $25 billion.
Therefore the contenders to submit offers for the Future Growth Project construction had to propose world-class shipyards to produce and ship these complex modules in that quantity.
Two teams of South Korean contractors are in competition for the engineering, procurement and construction (EPC) contract of Future Growth Project.
Chevron and its partners had planned to sanction this contract last year but the Kazakh requirement to integrate 44% of local content in the Future Growth Project caused some delay to evaluate the local partners to be involved in the respective South Korean teams.
In order to manage the local suppliers and subcontractors, the Kazakh Government is putting in place the National Service Company (NSC) that will support TCO.
In parallel GE Nuovo Pignone has been awarded the gas compressors.
Since the Kazakhstan Government approved the TCO expansion project in October 2013, Chevron and its partners ExxonMobil, KMG and Lukoil are close the make a decision for the EPC contract of the Future Growth Project to come on stream in 2015 for the first phase and 2018 for the second phase.