Wyniki wyszukiwania - BazTech

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Enhanced oil recovery processes in sandstone reservoirs containing light oil in offshore fields

Przybyłowicz J., Rychlicki S.

AGH Drilling, Oil, Gas

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2014

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Vol. 31, no. 1

99--116

EN

Enhanced oil recovery methods can significantly increase recovery from offshore oil reservoirs provided that the appropriate method is selected. Enhanced oil recovery methods aim to recover the remaining original oil in place by applying additional energy sources and minimalize flow resistance in the field. The application of these technologies results in enhancement, or replacement of natural or physical processes of displacement and modifies the composition and physical properties of formation fluids. The use of EOR technologies in offshore environment is limited compared to onshore fields. Constraints imposed by the offshore environment are associated with technical difficulties as well as economic risk. Before choosing the most appropriate EOR method for particular environmental conditions the restrictions associated with: large well spacing, disposal geological description as well as availability and cost of EOR agents, weight and space constrains or high capital cost requirements should be considered. Reservoir lithology is limiting the applicability of specific EOR methods. This paper presents a comprehensive review of EOR projects which are appropriate or possible for sandstone reservoirs containing light-oil in offshore field. The possibilities and limitations of selected methods are introduced.

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Enhanced Oil Recovery methods on offshore fields in the light of world literature

Bednarz P., Stopa J.

AGH Drilling, Oil, Gas

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2014

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Vol. 31, no. 2

215--229

EN

Enhanced Oil Recovery methods (EOR) are known since long time, but in recent years they have been used primarily in the U.S. mostly for research purposes. The increased interest in their use was in the 70's of the twentieth century, and associated with the increase in oil prices. Currently for several years there has been a return to the these methods, including offshore fields. Experience in the application of EOR methods in Poland is small, currently no exploitation is carried out using them. The purpose of this article is to present the current trends and latest technologies in enhanced oil recovery methods in terms of the applicability by the Polish oil companies. Statistical data of current and planned EOR methods in the world with special emphasis on offshore reservoirs is presented. Current trends in technological development of EOR methods are given, both which are still in the phase of laboratory tests and the first tests on fields such as: carbon dioxide flooding, water alternating gas injection, Iow salinity water injection, carbonated water injection, conventional technologies of polymer gels and thermally activated polymers.

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Ukraine’s prospects in development of marine mineral deposits

Sukach M.

ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes

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2013

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Vol. 2, No 2

47--50

EN

It is shown that the known reserves of marine minerals, including polymetallic nodules hydrates, marine sapropels, etc., will last the humanity for thousands of years. International cooperation and broad cooperation of companies and enterprises of maritime mining are needed to conduct the search, along with research and operation of deep mining complexes. This will allow us to prepare for the commercial development of marine deposits of mineral and energy resources in the near future.