International scientific journal

ISSN: 2663-0419 (electronic version)

ISSN: 2218-8754 (print version)

International scientific journal

ISSN: 2663-0419 (electronic version)

ISSN: 2218-8754 (print version)


About some results of nanotechnology application to oil recovery at mature oil fields in Azerbaijan

Aliyev J.A.

SOCAR, “OilGasScientificResearchProject” Institute 88A, H.Zardabi pr., Baku, AZ1012:


The efficiency of the use of nano-technologies for increasing the productivity of wells and field equipment is shown on the example of mature oil producing fields in Azerbaijan. The studies indicate that high viscosity of oils and disruption of hydrodynamic connectivity be-tween the reservoir and borehole are major reasons for low productivity of wells. A special nano-composition of organic solvent, surfactant and metallic nano particles has been developed to stimulate flow of asphaltene-rich oils from reservoir into well bore. At Palchyg Pilpilesi oilfield injection of the nano-system into the reservoir was implemented in 2-3 steps, allowing a 1-2 hour-long time break between them. Upon completion of the operations the well was kept shut in-waiting for uniform spread of the solution under built up pressure. Thanks to the measures at Pal-chyg Pilpilesi field, precipitation of asphalt, resin and paraffin materials was prevented, deposits were removed from the bottom-hole zone and from the pipe surfaces, oil viscosity was reduced as well. The use of nano-systems contributed to expansion of the fluid filtration zone in poorly permeable layers around the bottom-hole zone, thereby promoting oil production increase. At the “Bibiheybat” oil-and-gas production department the nano-composition was pumped into an under-ground in-field flow line connecting the lease tank with the field tank. This led to dissolution of the carbonate deposits and formation of nano-layer on inner surface of the flow line. As a result, the time period between repairs of the flow line increased to 4 times. Apart from this field trials of nano-particle treated liquid injection into the reservoir at Bibiheybat oilfield has shown efficiency of these measures. A total daily production on five wells occurring under the impact of injection well amounted at 1.8 t/day, while watercut reduced by 2.5 t/day. The results obtained indicate that by treating the bottom-hole zone in water flooded and marginal wells with specially developed nanocompound solutions a signifiacant increase in oil production can be achieved.

Keywords: oil, nanosubstances, enhanced oil recovery, oil transportation



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DOI: 10.33677/ggianas20200100041