The drilling has begun at one each at the project’s Ignyalinsky, Vakunaysky and Tympuchikansky fields, located at the border of the Irkutsk Oblast and the Sakha Republic.
The company will commence drilling at more wells at the Tympuchikansky block within a month.
Data gathered from further well testing will be used by Gazprom to determine geological models of the fields, allowing the various blocks to be subsequently prepared for production drilling.
Gazpromneft-Angara CEO Victor Sorokin said: "Gazprom Neft has been actively developing the Chonsky project since 2011.
"Continuation of the geological prospecting programme will allow remaining geological uncertainties on this project to be dispelled, and the level of recoverable reserves to be increased.
"The 2014-15 polar season has also witnessed an industry record in terms of seismic operations at the Gazpromneft-Angara licensed blocks, with 4,200 separate pieces of physical data recorded in the course of a single day."
In 2015, the company plans to prepare the most thoroughly researched blocks in 2015, for production testing, which is scheduled to commence next year.
