By Marianna Parraga Feb 2 (Reuters) - Venezuelan oil exports rose to some 800,000 barrels per day (bpd) in January, from 498,000 bpd in December, after the U.S. capture of Nicolas Maduro and the ending of an oil ​blockade which has let traders carry most exports, shipping data showed. Washington imposed an oil embargo on the U.S.-sanctioned ‌country in December to pressure Maduro and seized seven tankers. The blockade led to the accumulation of more than 40 million barrels of crude and fuel ‌in onshor ...