RosGeo has specified the geological model of East-Messoyakha oil and gas condensate field

07.05.2020

Specialists of the Central Geophysical Expedition (CGE, a subsidiary of RosGeo) based on the new geological information updated the geological model of the East Messoyakha - a unique oil and gas field of specific geological and engineering conditions, the most northerly of those currently developed on the mainland in Russia.

Moscow, May 7, 2020 - Specialists of the Central Geophysical Expedition (CGE, a subsidiary of RosGeo) based on the new geological information updated the geological model of the East Messoyakha - a unique oil and gas field of specific geological and engineering conditions, the most northerly of those currently developed on the mainland in Russia. The project executed under a contract with Messoyakhaneftegaz (a joint venture of Gazprom Neft and Rosneft), was successfully defended in State Commission for Reserves of Commercial Minerals of Federal Subsurface Management Agency.

Over the last five years a large scope of explorations and surveys have been carried out at the East Messoyakha field. These works resulted in obtaining new geological-geophysical and commercial information on structure and gas accumulation in the pay zones, which became the basis for updating of the geological model.
“There are several dozens of productive stratas and over a hundred of deposits in different phases characterized by significant discontinuity in the area, block structure and presence of gas caps," - said Elena Yukanova, the Head of the CGE Geological Department. - To perform a huge scope of work in a short time from our experts implemented extremely balanced and comprehensive solutions based on the cutting-edge digital technology and unique competence."
The basis for updating of the East Messoyakha geological became the unique database of seismic data "Superkub" elaborated by CGE project team headed by Alexei Chaplygin and Mikhail Yarlykov. The result of this four-year work of the group, completed in 2018, was the correlation between the results of the joint processing and the integrated interpretation of 10 3D CDPM seismic surveys on the territory of 3500 km2, performed in different field seasons with different excitation conditions, sources and multiplicity. The study is based on surveys in 1206 drilled wells.
Following the results of drilling in 2018-2019 the geological model of the East Messoyakha underwent changes. 3D geological model elaborated by CGE experts will allow the mineral developers to more accurately identify the zones with quality and confident deposits and determine the priority in drilling.
This, in turn, will provide an opportunity to clarify the programs of geological exploration and experimental and industrial development with application of wells of different design in little-studied zones. Optimized design solutions for field exploration and utilization will improve the cost-effectiveness of the field development.

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The East Messoyakha oil and gas condensate field is located in Tazov district of the Yamal-Nenets Autonomous District, 340 km north of Noviy Urengoy. The field was discovered in 1990, along with the West Messoyakha it refers to the Messoyakha group that has obtained its name after the river Messoyakha. The development of the field entered an active phase after construction of the oil and gas pipeline Zapolyarye-Purpe. The East Messoyakha oil and gas field was commissioned in 2016. In 2019, the production volume exceeded 5,6 million tons of oil equivalent, the accumulated production since the beginning of the field development has attained 15 million tons o.e.

JSC Central Geophysical Expedition is a service company with over 50 years of practical experience in the field of processing and interpretation of seismic and geophysical materials, elaboration of geological deposit models. It provides the high-quality performance of a full range of geological, geophysical and field surveys in accordance with international standards. CGE was established by the Ministry of Oil Industry of the USSR in 1967 as a research and production center for management of the process on translation of geophysics data into the digital recording and processing.

RosGeo is a Russian multi-disciplinary geological holding that carries out a full range of services related to geological exploration: from regional surveys to parametric drilling and monitoring of subsoil conditions. The holding company boasts a unique expertise, particularly in marine geology and shelf operations. 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. Rosgeo is a fully state-owned company.

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