Project Profile
Value: US$2,000 million
Location: Central Ordos Basin, Northern China, Asia
Start-up Year: May 2012
Peak production: 24.6 billion cubic metres per year
Upstream Gas Reserves: 4.46 trillion cubic metres
The Sulige gas field in central Ordos Basin is one of the largest gas fields in China, with about 860.7 billion cubic meters (bcm) of proven gas reserve. This field covers an area of about 500 km2, with largely tight clastic reservoirs. The Upper Carboniferous–Lower Permian deltaic sandstones and Upper Permian lacustrine mudstones deposited in a stable cratonic tectonic setting form an effective petroleum system that is favorable for gas accumulation in large-scale stratigraphic–lithologic traps. based on wire line log response, drilling stem test and core data, a generalized classification system was developed for the gas reservoirs of the Sulige field, thus Type I and II rocks are capable of gas production without natural and/or artificial fracturing, Type III rocks are capable of gas production after artificial fracturing and Type IV rocks are too tight to produce at commercial rates even with artificial fracturing. The discovery of the Sulige field not only adds large gas reserve in the Ordos Basin, but strongly indicates the overlook potential of both tight sandstone reservoir rock and relatively porous and permeable sweet spots in it. New studies prepared in 2015, Sulige gasfield has added proved and basically proved gas reserve of 700 billion cubic metres in 2015. So far, the cumulative proved and basically proved gas reserve of Sulige gasfield has hit 4.46 trillion cubic metres.
Operators:
PetroChina: operator with 51% interest
Total: operator with 49% interest
Samsung Corp: Negotiating stake
Contractor:
Baker Hughes:Supply of 77 multistage openhole fracture completion systems for horizontal wells
Changqing Oilfield Company: EPC
Kvaerner (China)