Improving the Efficiency of Processing the Results of Reservoir Filtration Studies and Parameters when Modeling Complex Oil Reserves

摘要

The issues of improving the efficiency of processing the results of studying the reservoir filtration properties (RFP) within the oil-and gas-producing areas of the central part of the West Siberian petroleum province are considered. The high degree of development of the hydrocarbon resources of the studied area is determined by the presence of deposits that developed for a long period of time. It enables one to solve tasks aimed at increasing the efficiency of searching for complex deeply buried reservoirs, as well as the efficiency of their exploration and additional exploration, since the overlying productive horizons are practically developed. This task is considered one of the most important at the current stage of field development in this region due to the decline in oil production at the main large fields and is open to interpretation. The present paper covers the issues of reservoir modeling using new scientific and methodological approaches to geophysical data processing and the possibility of using modern software products when grouping development objects according to criteria corresponding to a reservoir of a certain lithotype. This approach allowed us to develop high-quality geological models and justify the use of the most effective complex of geophysical studies for modeling low-amplitude (no more than 15 m) and small(less than 20 km(2)) oil deposits. In the course of research the results of studying the reservoir filtration properties were processed; low-amplitude and small deposits of channel sediments (river valleys) were established, the commercial oil and gas content of complex sediments characterized by low-amplitude and small deposits (Tyumen Formation, Yu(2) reservoir) was proved, the results of geophysical exploration (GIS) in wells were interpreted, the GIS results were compared with the energy characteristics of the reflected waves (seismic studies), zones saturated with water-oil-gas fluids were established (3D models were developed), and the possibility of using this technique for identifying and mapping complex deep oil deposits was shown.