Additional exploration of existing fields is the main method of replenishing UVS reserves and covers research work on additional exploration of under-explored promising areas and identification of missed horizons using new technologies for field research.
Since 2016, according to the Strategy for Additional Exploration of Existing fields, together with Subsurface Users, the analysis and systematization of geological and geophysical data, the assessment of the potential of KMG NC deposits and the phased development of Detailed additional exploration programs with the issuance of specific recommendations for geological and technical measures, taking into account the imperfections of previously used technologies (drilling, GIS, testing, seismic exploration, etc.) have been carried out.
The main strategic goal of the developed Additional Exploration Programs is to ensure a stable increase and recovery of reserves by involving in the development of undetected, missed, residual reserves (including the transfer of C2 reserves, identifying and involving in the development of lithological and stratigraphic traps in zones of inconsistencies and wedges, reef massifs and scree plumes bordering them, in granite weathering crusts, in thrust structures and tectonic deflections, etc.).
The program provides for an optimal, in technical and economic terms, complex of modern methods of geological and geophysical research at the fields being developed.
When developing Detailed programs for additional exploration of existing fields, Techlog software is used to analyze GIS data and Petrel for consideration of 2D/3D seismic data, mapping and assessment of UVS resources and reserves.
In 2016, KMG developed the “Program of additional exploration of the developed fields of JSC NC Kazmunaygas for 2017-2021” (hereinafter the Program), which included 29 existing fields of JSC NC Kazmunaygas. In 2017, detailed additional exploration programs were approved for the Uzen-Karamandybas, Kalamkas, S. Nurzhanov fields and a group of Kazakhturkmunai LLP fields.
Since 2017, in close cooperation with Subsurface Users, additional exploration activities have been implemented in accordance with the Program. New deposits have been identified (missed horizons), and the growth of industrial-grade oil reserves is monitored and monitored annually.
In 2018, two Detailed Additional Exploration Programs were developed for the Mangistaumunaigas and Embamunaigas group of fields, covering a total of 16 fields.
In 2019, the Detailed Program of Additional Exploration for the Embamunaigas group of fields, which includes 10 fields, was updated and supplemented.
KMGE is developing measures to involve the reserves identified through additional exploration into development.