In this research the alternative method is presented increases of oil recovery of an oil collector. Shock wave impact on layer. The technology is developed, advantage of this method is shown in comparison with layer hydraulic fracturing. For increase oil recovery and restoration of wells the traditional is widely applied technology of hydraulic fracturing of layer (flyuding), allowing on the short period to recover a well. Sense of a flyuding that hydrostatic pressure is created is considerable exceeding mountain and bringing to a rupture of a collector on one or several cracks. In this work the alternative technique of increase in oil recovery is offered by creation of a shock wave small intensity in the bottom fluid. With a high frequency of repeatability set of blows increases quantity of micro cracks in collector rock, increasing coefficient of permeability of layer without breaking its connectivity.
Calculation of payback periods of the energy saving actions directed on increase of level of thermal protection of external enclosure structures of buildings is given. Economic efficiency of investments in energy saving actions is analyzed and the model allowing to carry out the specified analysis is offered. Recommendations about reduction of payback periods are provided.Article also is devoted definition of optimum, economically well-founded thickness of a insulant in systems of rear ventilated facades. Are resulted thermotechnical and economic calculations. The optimum thickness of the insulant in the given systems is offered.A number of the energy saving actions is necessary for economy of thermal energy, allowing to eliminate defects of protecting designs or to reduce their influence on building heatconsumption. Construction of hinged ventilated facades at simultaneous introduction of automated individual thermal points with automatic equipment dependent on weather [1] can become an example of the engineering decision on increase of heat-shielding properties of protecting walls.
The analysis of results of power inspections and search of possible solutions of energy saving and increase of power efficiency of budgetary organizations (kindergartens) taking into account feature of these objects and justification of their economic efficiency is given in article.
The article presents results of energy inspection of an educational building “Hydrotechnical building-2” of the Saint-Petersburg State Polytechnical University. The energy audit was carried out to estimate energy resources performance and define opportunities for its increase. According to the results of energy audit the analyses of state of energy consumption are provided. The class of energy efficiency is defined. The recommendations and prospective opportunities to save energy and increase power efficiency of “Gidrokorpus-2” are presented as a resume of this article.
Abstract. Modern software products for thermal calculations make possible to speed up the design process and to improve the energy efficiency of new and renovated buildings. This article provides a complex evaluation, comparison and analysis of the feasibility of using Russian and foreign programs in thermal calculations.
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