Water cut map using as an additional information for development analysis of the Achimov formation

Introduction. Achimov deposits are characterized by low filtration properties, that require special tools development to obtain an economically attractive result. In particular, such tools include drilling horizontal wells with multistage hydraulic fracturing.
Aim. The aim is to develop a modified water cut map considering the fractional flow model as a tool for analyzing and development strategy modification of Achimov deposits in order to reduce uncertainties associated with runin water cut and reservoir saturation.
Materials and methods. Water cut map construction technique based on Leverett J-function within simulation model is presented. History matching of model to 89 wells as well as filter usage considering hydraulic fractures’ spreading is a center point of described method. Water cut map is assumed to be appeared into the economic efficiency matrix based on finance & economic model with actual macroparameters.
Results. The estimated water content of new wells according to the water content map at the proper level and dynamic model history match showed a high percentage of convergence with the actual launch indicators, which makes the use of the technique as a perspective tool for appropriate development strategy application for object associated with reservoir saturation assessment uncertainties.
Conclusion. The use of a water cut map is a perspective useful tool for analyzing development, which reduces the uncertainties associated with water cut beginning and reservoir saturation in general within the area new wells planning. The use of the economic efficiency matrix allows ranking of the project wells, optimizing the process of evaluating by time costs.

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