1. PROJECT BACKGROUND Location coordinate :
Kumang Cluster fields consists of Central Processing Platform (CPP) Kanowit Field (KAKG-A), F9JT-A wellhead, Kumang (KUJT-A) wellhead, and Kanowit (KAJT-A) wellhead. The Kumang field is located approximately 200km from the MLNG plant offshore Bintulu, Sarawak. 
The drilling platforms will be designed for unmanned operation with interconnecting pipelines to KAKG-A.
Minimum facilities with only small power generation, pedestal crane, telecommunication, well head control panel, pig trap, wet gas metering, vent system, temporary shelter, and helideck.

2. KUMANG DRILLING PLATFORM (F9TJ-A)
04 ̊ 25’ 56”.774 N, 111 ̊ 47’ 23”.584 E, KUJT-A
04 ̊ 22’ 01”.983 N, 111 ̊ 57’ 58”.682 E, KAKG-A
-85 m elevation
20.5 km
178.0 km
198.0 km
MLNG in Bintulu

3. BASIC CRITERIA
Location  of the platform - Approximately 200 km from the nearest coast line.
Kumang Cluster fields.
Function of the platform - Unmanned drilling platform at sea depth approximately meters below mean sea level.
Field development options - Central Production Platform Kanowit field (KAKG-A).
Kumang KUJT-A drilling platform.
Structure transportation and - MMC Oil & Gas Engineering Sdn. Bhd. Installation Miri, Sarawak.
Conceptual and Basic Engineering
Detailed Engineering Design
Topsides and jacket design
Modification to the existing platforms
Installation Engineering

4. METOCEAN CRITERIA BARAM DELTA (WATER DEPTH 75m) (PTS)
At Mid-depth : 0.5*85m = 42.5m
At near seabed : 0.01*85m = 0.85m

5. METOCEAN CRITERIA
At water depth of 85m under MSL and the wave period of 8.9 seconds,
the wavelength (L) = 124m.
Wave celerity = m/s.
Water particle velocity
horizontal = m/s.
vertical = m/s.
Water particle accelerations
horizontal = m/s
vertical = m/s
Water particle displacements
horizontal = m
vertical = m

6. METOCEAN CRITERIA

7. WIND CHARACTERISTICS-WIND DIRECTIONS
DETAILED DESIGN SERVICES FOR KUMANG CLUSTER DEVELOPMENT PROJECT
Load imposed on top side is wind load.
Design wind loads were generated in accordance with API-RP2A [3] recommendations.
One minute duration wind speed 17m/s and 24m/s at 10 m elevation above MSL.
Top side structure
Wind directions
10 meters
MSL
Side view of top side structure.

8. WIND CHARACTERISTICS-WIND DIRECTIONS
DETAILED DESIGN SERVICES FOR KUMANG CLUSTER DEVELOPMENT PROJECT
Plan view of top side structure.

9. WIND CHARACTERISTICS-SHAPE COEFFICIENTS
API FORMAT
Forces on flat surface are assumed to act normal to the surface.
Forces on cylindrical surface are assumed to act in direction of the wind.
Shape Coefficients.
Beams
Sides of building
Cylindrical sections
Overall projected area of platform - 1.0

10. WIND CHARACTERISTICS PETRONAS TECHNICAL STANDARD (PTS)
PETRONAS TECHNICAL STANDARD, Design and Engineering Practice, Technical Specification, PTS , JANUARY 2010, Wind Force Calculations, page 7.
Taken same shape coefficients as API.
“In computing wind forces in accordance with API … respectively”
Conclusion, using API standards.