(EnergyAsia, September 6 2011, Tuesday) — Malaysian state oil and gas firm Petronas is targeting to double production at its 47.4%-owned Chinguetti oil field off the coast of Mauritania to 8,000 b/d by end-2011.Located in deepwater Block 4 of PSC B about 170 km from the capital, Nouakchott, the Chinguetti field was discovered in 2001…