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The Study of the Deposits of the Tyumen Formation. Experience of Trial, Error and AchievementNormal access

Authors: T. Kiryanova, O. Kirzeleva, M. Fedorova, R. Kopenkin, D. Klyazhnikov and A. Kalugin
Event name: ProGREss'19
Session: Round table «Field Development Role at Appraisal» / Круглый стол «Модели разработки месторождений на ранних стадиях»
Publication date: 05 August 2019
DOI: 10.3997/2214-4609.201953020
Language: Russian
Info: Extended abstract, PDF ( 621.37Kb )
Price: € 20

Summary:
Tyumen series within the West Siberian Petroleum Province contain considerable oil resources (about 3 billion tons of the current recoverable reserves). Degree of their depletion is only 7%. Until recently, the reason for low interest in reservoir development was the frequent disconfirmation of geological models and drilling of numerous dry and marginal wells. Despite the considerable amount of accumulated information, including regional studies, and conclusions that in the vast territory the Tyumen series were formed in continental settings of alluvial plains and meandering channels, conceptual and three-dimensional digital models are still created with large assumptions/simplifications and do not reflect the complexity of pay zone structure. That is one of the reasons why the subsequent drilling does not confirm geological models. By the example of J2 reservoir, the work presents an experience of transition from simple to more complicated geological model as a result of reprocessing and integrated interpretation of geological and geophysical information.


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