Irkutsk enterprise of Rosgeo will carry out the integrated geophysical logging of Novoyakimovskaya appraisal well No. 1

Irkutskgeofizika, JSC (a part of Rosgeo state holding) will survey Novoyakimovskaya appraisal well No. 1 located in the Krasnoyarsk Territory on the similarly-named prospective oil-and-gas-bearing area.

The facility is staked on the southern slope of the Novoyakimovskoye High, its design depth is 5,000 m. Integrated geophysical logging (GWL) and geological and engineering survey (GES) will be carried out in several stages. According to the project, at first stage the well will be surveyed down to the depth of 1600 m.

Irkutskgeofizika will perform work under the terms of contractor agreement concluded this year with another subsidiary of Rosgeo, SPC Nedra, JSC (Yaroslavl). The direct performer of the work is the Osinskaya Logging Company being a part of Irkutsk enterprise. GWL and GES set will be implemented using up-to-date computer-based stations and digital downhole tools, which will allow the use of a wide range of study methods. As of today, Irkutskgeofizika mobilizes equipment and transports it to the logging site.

During the first stage of well construction experts face the challenge to obtain current information necessary to address geological, technical and process issues, such as ensuring the specified drilling parameters, identifying reservoirs, quantitative determination of their permeability, porosity and fluid saturation, determining the technical condition of casing strings, cement stone, etc.

The final conclusions on the results of Novoyakimovskaya-1 appraisal well logging will be presented by Irkutskgeofizika to the customer after facility survey in accordance with the time schedule. The work commencement is scheduled for June 2019.


 RG-Inform, Press Center of ROSGEO JSC

ROSGEO is a Russian multi-industry geological holding company, which offers a full range of geological exploration services from regional surveys to stratigraphic drilling and subsoil monitoring. The holding company boasts unique expertise, particularly in marine geology and shelf operations.

ROSGEO was established by Decree No. 957 of the President of the Russian Federation dated 15 July 2011 on the basis of Tsentrgeologia, one of the oldest exploration companies in Russia. ROSGEO is a fully state-owned company.

The enterprises within the holding company operate in eight federal districts of Russia. ROSGEO has enterprises located across the country. A total of more than 1,000 fields and deposits have been discovered by the holding’s companies, including major hydrocarbon and solid mineral deposits and fields such as the Astrakhan field (2.5 trillion cubic meters of natural gas), the Tengiz field (3.1 billion tonnes of oil), the Kovykta field (1.9 trillion cubic meters of natural gas), the Sukhoi Log deposit (about 2,000 tonnes of gold), the Kursk Magnetic Anomaly, and many others.

 ROSGEO’s subsidiaries have rich experience in implementing projects abroad: dozens of new fields and deposits have been discovered in Asia, Europe, Africa, and Latin America.

 ROSGEO clients include such companies as Gazprom, Rosneft, Lukoil, Severstal, MMC Norilsk Nickel, Itera, NLMK, Sibuglemet, BP, Chevron, and many others.


Irkutskgeofizika is one of the largest specialized geophysical and geological exploration enterprises in Eastern Siberia and the Far East of Russia. The company carries out a broad range of geophysical work in prospecting for oil, gas, and solid mineral resources in hydrogeology, evaluation and prospecting; geodynamic, hydrogeological, and ecological monitoring.

The company has carried out numerous successful studies concerning the oil and gas potential of the southern part of the Siberian craton with its unique geological and geographical environment. Eleven oil and gas deposits were discovered in the area of survey including the largest such as the Kovykta gas condensate field and the Verkhnechonskoye oil and gas field. The Sukhoi Log gold deposit, the Sayan group of rare-earth and polymetal deposits, the Nepskiy potassium basin, and others were discovered.