New mathematical methods of adaptation of geotechnical models Cenomanian gas pools

AbstractThis article describes the algorithm of adaptation the reservoir pressure of hydrodynamic modelthe gas field on the model of the Cenomanian deposits of Yubilejniy condensate field. As part of the analyzed methods for determining the filtration reservoir properties (FRP) of the formation and error. Drafted an algorithm of creating FRP cube modifiers, which takes into account error in the determination of theseparameters in the construction of the geological model. The developed method is applied in practice, the results of adaptation is analyzed.
Materials and methods
study of literature, scientific publications on the subject of the work
Results
This approach allows us to adapt the simulation model for the development of the actual performance by modifying the parameter of permeability within the permissible limits of error of its determination obtained on the basis of the described technique. The use of this approach to adapt the reservoir pressure hydrodynamic model of the Cenomanian deposits of the Yubilejniy field has reduced toan acceptable standard deviation values of 2.39. Fig. 4 shows the distribution of differences on the formation pressure at the last point in the model with actual data on wells operated.
Сonclusions
On this basis, it can be concluded about thesuitability of the hydrodynamic model adapted for use within Predictive technology indicators. Based on the work performed, it is possible to draw the following conclusions: • algorithm is developed based on existing methods for the determination of reservoir rock properties; • found rational decision limiting the range of variation of the parameter of permeability; • developed the algorithm for creating a cube modifiers to reduce the time it takes to adapt.