Last week, authorities withdrew a key environmental permit for Sakhalin-2, a decision which provoked protests in Europe and Japan. Analysts linked the decision to Shell's doubling of the cost of the project last year, which angered Russian authorities.
Trutnev said new inspections his ministry has ordered over the next month had only environmental motivations.
Shell owns a 55 percent stake in Sakhalin-2, Japanese companies Mistui and Mitsubishi hold the remainder.
(Interfax, AFP)