Geological profile as the basis of Bashkirian model selection for oil reserves estimation

Anna G. Baranova IPEM TAS Kazan, Russian Federation anna.genn@mail.ru
Svetlana E. Valeeva IPEM TAS Kazan, Russian Federation  
Yuriy M. Arefiev IPEM TAS Kazan, Russian Federation  
All the methods of studying the geological structure of the oilfield eventually aimed to count oil enclosed in the specific field of productive sediments. It is shown on example of deposits in the sediments of the Bashkir tierhow the construction of geological profiles helps to make the right choice models deposit more accurately calculate oil stocks and optimize field development systems.
Materials and methods
Creation of geological profiles is executed by means of the program Surfer complex according to geophysical data of wells before creation of model, it were under construction by meansof a program complex Roxsar. On the received profiles models across Roxsar were corrected.
Results
In practice at the count of supplies of oil in any productive deposits for a deposit one model on which a calculation is conducted for all elevations within the limits of the licensed border of deposit gets out wholly. According researches of authors, within the limits of one deposit in the deposits of Bashkir tier there are beds cleanly massive type and bed of the type mixed - tabular-arc and massive. In this connection authors offered the new going near the count of supplies of oil in a carbonate:
1. for every exposed bed of deposit, for more correct determination of its type, a construction at least of 2 geological types (along and transversely extending) is needed, and for large in size beds and more;
2. for every exposed bed to produce all calculations on a model according to the certain type of bed.
Сonclusions
Geological profile is the basis to construct the right model as for individual elevation, as for whole oil-field, which is helps to calculate deposits more precisely. Also the ample quantity of equally located the field geological profiles help to make the right choice of development method of deposits or correct the applied method.
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Bashkir tier geological profile deposit calculation of reserves