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Problems of Geological Exploration of Old Oil-and-Gas Regions
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Progress’19, Nov 2019, Volume 2019, p.1 - 7
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Abstract
Summary
The Republic of Tatarstan certainly belongs to one of the oldest oil regions of our country. Geological exploration of the old oil and gas regions is complicated by a number of objective factors, including: the deterioration of the resource base, the lack of highly promising prospecting objects and an increase in the share of hard-to-recover reserves. However, in the Republic of Tatarstan a great experience has been accumulated in maintaining a sufficiently high level of geological exploration success even in conditions of high exploration of mineral resources. First of all, attention is paid to unconventional objects (Perm bitumens, Domanic deposits, crystalline basement) and innovative methods of prospecting and exploration of hydrocarbon deposits. PJSC TATNEFT annually prepares projects for seismic exploration, where areas with a large number of identified and mapped structures and a low density of seismic profile networks are selected as priority research areas. For successful exploration work, adaptation of the strategy and tactics of their conduct is necessary, taking into account the characteristics of the old oil and gas regions. For example, Western companies have long been using VOI and probabilistic-statistical evaluation of search assets to make decisions on further work on search assets. In PJSC Tatneft, as part of the risk management concept, these methods are also successfully applied.
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