Translation. Region: Russian Federation –
Source: Rosneft – Rosneft – An important disclaimer is at the bottom of this article.
Verkhnechonskneftegaz (part of the Rosneft oil and gas production complex) received more than 2.6 million tons of additional oil production over 5 years as a result of the implementation of the infill drilling program at the Verkhnechonskoye oil and gas condensate field. Under the program, which has been implemented since 2019, an additional 117 wells were put into operation.
The Verkhnechonskoye field has been in commercial development since 2008. At the initial stage of its operation, an economically optimal decision was made to use a seven-point drilling system: six production wells around one injection well. The distance between the wells is 1040 meters. Most of the wells are horizontal, with various types of completion: standard horizontal, multi-well, multi-stage hydraulic fracturing, uncased wells.
The infill drilling program (increasing the number of wells in the same field area) is aimed at increasing the oil recovery factor, while rationally using the existing field infrastructure. On the existing cluster sites, after the necessary reconstruction, 2-4 additional wells are drilled, which leads to an increase in oil production. Additional horizontal wells are located at a distance of 300-500 meters relative to neighboring ones.
Specialists approach the planning of each new well individually, based on specific geological and surface conditions. The results of hydrodynamic modeling are taken into account, zones of residual oil saturation, current reservoir pressure, and interaction with neighboring production wells are identified.
Reference:
JSC Verkhnechonskneftegaz develops the Verkhnechonskoye oil and gas condensate field, one of the largest in Eastern Siberia, which is located in the Katangsky District of the Irkutsk Region. In December 2023, the field produced its 100 millionth ton of oil since the start of its industrial development.
The company also operates works at Rosneft’s licensed sites in the Irkutsk Region and Krasnoyarsk Krai.
Department of Information and Advertising of PJSC NK Rosneft October 29, 2024
Please note: This information is raw content directly from the source of the information. It is exactly what the source states and does not reflect the position of MIL-OSI or its clients.