Tengizchevroil (TCO)

Year 2013

Location Kazakhstan - Tengiz

Architecht TCO

Application

Passive fire protection arrangement for structures and vessels supports

Kazakhstan - Tengiz

The Tengiz oil field is located at the western end of the republic of Kazakhstan on the shore of the north-eastern tip of the Caspian Sea.
Design for extremes of cold and heat are key issues.
Cafco FENDOLITE® MII was selected as the passive fire protection arrangement for structures and vessels supports in 1988 and has been selected for all 7 packages to date.
Extremes of cold in the winter months have meant the installation of the PFP arrangement is normally carried out in the summer months where the maximum temperature for solar radiation is 75°C.
Cafco FENDOLITE® MII has demonstrated fitness for purpose and has been preferred on 15 packages by 15 engineering contractors.

Temperature and Humidity (°C UNO)

Design Dry Bulb Temperature	40 for critical air coolers
Design Dry Bulb Temperature	36for non-critical air coolers

Design Wet Bulb Temperature	29
Maximum Ambient Temperature	44
Maximum Design Temperature	60 for equipment and piping not exposed to direct solar radiation,

Maximum Temperature for Solar Radiation	75
Minimum Design Temperature	-40 for frost protection

Atmospheric Conditions

Barometric Pressure	1013 mbar
Relative Humidity (yearly average)	68%
Maximum Relative Humidity	85% (coldest month)
Minimum Relative Humidity	33% (hottest month)

Sandstorms

Maximum frequency/duration	43 days/year
Average Solids Load in Air	26 mg/rn³solids
Maximum Solids Load in Air	240 mg/m³solids at 3m
	50 mg/rn³solids at 6m

Precipitation (mm UNO)

Maximum Annual Rainfall	200
Average Annual Rainfall	160
Maximum Rainfall for 10 min	25
Maximum Rainfall for 30 min	40
Maximum Rainfall for 60 min	50
Snow Levels	50 to 200
Snow Load	0.5 kN/m²
Ice Storms	Occur periodically

Soils Data

Ground Water Level	-0.7 to -2.0 meters
Freezing Depth	1.5m (top of pipe)

Challenges

Fitness for purpose; proprietary passive fire protective coatings in extreme operating environments.

Site Location

The Tengiz oil field is located at the western end of the republic of Kazakhstan on the shore of the north-eastern tip of the Caspian sea. The field, facilities and infrastructure are established and are located a few kilometers from the edge of the sea, with camps some 10 km+ away from the process facilities. The site is remote with the nearest significant population center at Kulsary to the north east. Tengiz lies in the Atyrau Oblast (region) and the city of Atyrau on the northern shore of the Caspian at the Ural river estuary, is the nearest industrial centre.

Site Conditions

Tengiz lies at the extreme western edge of the grassland steppes in a semi arid location, subject to extremes of temperature (- 40 to +44°C) and wind chill. The Caspian Sea at this location is ice bound in the winter months. Sand storms are a problem with respect to erosion. A high water table and saliferous atmosphere increases corrosion potential and ground freezing.

Design for extremes of cold and heat are key issues.

Products

Cafco FENDOLITE® MII