QINGDAO - China's Chuandongbei gas project, in which U.S. oil major Chevron Corp has a 49 percent stake, expects first gas production in 2010, a Chinese industry official said on Monday.

Chevron and leading Chinese oil company CNPC, parent of PetroChina, entered a 30-year product sharing contract in Dec 2007 to develop the high-sulphur gas field using technology from Chevron, which will be the operator of the field.

The Chuandongbei block, in southwestern Sichuan province, has proven gas reserves of 176 billion cubic metre (bcm) and companies said in 2007 that they planned to process the gas at two plants with total capacity of 740 million cubic feet per day, or 7.6 bcm a year.

Speaking at a seminar on the sidelines of the U.S.-China energy forum, Yan Cunzhang, president of PetroChina's foreign cooperation administration also said CNPC's joint venture with French major Total ToTF.PA was on track to develop Sulige gas field in northern China.

CNPC and Total would submit to the National Development & Reform Commission by end of October the overall development plan for Sulige South gas block in Inner Mongolia region that covers nearly 2,400 square km, Yan said.

The project is expected to reach a plateu production of 3 bcm from 2012 for 15 years, the companies have said. (Reporting by Eadie Chen and Chen Aizhu; Editing by Chris Lewis)