Geological simulation and issues of petroleum fields development
Article # 24_2024 submitted on 08/05/2024 displayed on website on 09/02/2024
14 p.
pdf Relationship between forecast uncertainty of the productive units effective thickness and sedimentation conditions (example of one Yamal Peninsula field)
The reservoir effective thickness is one of the most significant parameters in assessing petroleum geological reserves and the placement planning of production wells. The connection with the uncertainty analysis of this parameter deserves special attention. The approach of probabilistic forecast of reservoir effective thicknesses based on 3D modeling for the TP11-16 and BYa4-9 productive units of the Tanopchin Formation of one of the unique fields of the Yamal Peninsula is considered. The main specific features of the geological structure of the studied objects are characterized. For the strata under consideration, ranges of possible values of the net reservoir thickness have been determined at different distances from drilled wells. They differ significantly depending on the sedimentation conditions of reservoir rocks. It has been confirmed that depositional conditions are one of the key factors determining the uncertainty range of net reservoir thickness.

Keywords: sedimentation conditions of reservoir rock, probabilistic forecast of reservoir effective thickness, uncertainty of reservoir thickness forecast, Tanopchin Formation, Yamal Peninsula.
article citation Popova O.A. Svyaz' neopredelennosti prognoza effektivnykh tolshchin produktivnykh plastov s usloviyami sedimentatsii otlozheniy na primere odnogo iz mestorozhdeniy poluostrova Yamal [Relationship between forecast uncertainty of the productive units effective thickness and sedimentation conditions (example of one Yamal Peninsula field)]. Neftegazovaya Geologiya. Teoriya I Praktika, 2024, vol. 19, no. 3, available at: https://www.ngtp.ru/rub/2024/24_2024.html EDN: GVEIWU
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