The paper presents a technique of three-dimensional geological modeling of one of the most complex formations, reef deposits. The research objective is an investigation of how the reef structure genesis influences the three-dimensional geological grid of reef mass. Using the paleogeographic and paleofacies methods of investigation, the conceptual and three-dimensional geological models of a natural reservoir have been constructed.
To increase the development efficiency of reservoirs, methods to intensify inflows and enhance oil recovery are applied. The geological and field experience of applying these methods shows that a high technological effect can be reached in specific geological and geophysical conditions while in other conditions efficiency will be insignificant. In this relation, an important solution for this problem is the justification of selecting the most efficient technologies of stimulating pay zones. The research objective is to select the most optimal technologies of stimulating pay zones to increase the development scope and enhance oil recovery. Using geological and field analysis, a complex quantitative assessment was done for the efficiency of using methods to enhance oil recovery and stimulate pay zones in both production and injection wells.
Microseismic monitoring of hydrocarbon fields is one of the promising areas of modern seismology. In recent years, the methodology of microseismic monitoring for seismic emission has been actively developing in the oil and gas industry in order to study the impact of various technogenic processes on the hydrocarbon (HC) fields being developed. The technology does not require powerful sources of sounding signals, but uses constantly existing weak seismic fields of artificial or natural origin. During the development of the field, periodic monitoring of the intensity and spatial position of the zones of microseismic activity allows controling the behavior of HC deposits in order to optimize their development. Distinctive features of this technology are high mobility, fast deployment time, high resolution, and low cost of receiving, transferring and processing of microseismic data. The purpose was to analyze the results and evaluate the effectiveness of MFHF using microseismic monitoring of seismic emission processes. The results were obtained with the help of quantitative microseismic monitoring of seismic foci occurring successively near the well ports at different times during MFHF.
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