IDEA #3SRN21 TECHNOLOGIES TO INCREASE EFFICIENCY OF OIL PRODUCTION PROCESSES ON THE BASIS OF NEGATIVE PRESSURE PHENOMENON

TECHNOLOGIES TO INCREASE EFFICIENCY OF OIL PRODUCTION PROCESSES ON THE BASIS OF NEGATIVE PRESSURE PHENOMENON Other comparatively advantageous application of our technology provides increase of efficiency of a gas-lift well operation, expressed in considerable reduction of a specific gas consumption associated with essential in- crease of oil recovery and overhaul period. Based on a simple mechanism it is easy to use. Areas of application Granular foamglass is a very good filler of the concrete structures, which gives them a lightness, and good thermal properties. It is used in the construction of industrial and civil buildings as well as in rural construction. Stage of development Some applications of the technology are completely de- veloped and have passed broad tests in field conditions as a result of which effectiveness and efficiency of oil well operations (gas-lift, rod pumping) were considerably in- creased, sand plugs of different heights and origin have been eliminated operatively and high effectively. There are other applications that are on either conceptual idea or completed lab tests stages. 0 0 , 0 8 0 , 0 6 1 , 0 4 2 , 0 2 3 , 0 0 4 , 0 8 4 , 0 6 5 , 0 4 6 , 0 2 7 , 0 0 8 , 0 8 8 , 0 6 9 , 0 4 0 , 1 a P M , e r u s s e r P 1 0,8 0,6 0,4 0,2 0 -0,2 -0,4 -0,6 -0,8 -1 -1,2 -1,4 -1,6 -1,8 Time, sec Fig.1. Typical waves of Negative Pressure in oil stream. Contact details Institute of Geology of ANAS Contact person: Prof. Ibrahim S.Guliyev Deputy Director Address: 29 A, H. Javid Avenue AZ1143, Azerbaijan, Baku Tel: (+994 12) 4395619 Fax: (+994 12) 497 5285 E-mail: iguliev@gia.az Azerbaijan State Oil Academy Contact person: Prof. Fuad H.Veliyev Tel.: (+994 12) 5967062 E-mail: fuadveliev@hotmail.com Description There have been worked out the technologies on us- ing of the negative pressure phenomenon for increas- ing the efficiency of oil producing at different well operation methods, cleaning of oil producing and transportation hydraulic systems (well bore, pipeline) from various accumulations. The negative pressure is one of metastable states of liquid in which it can be extended up to a certain limit without a gap of continuity. There are numerous re- sults of experimental works, mainly of American sci- entists, in which by providing high degree of purity of a system “liquid-vessel”, there have been reached great values of negative pressure (up to -40MPa) in laboratory conditions. However, these results of the experimental works have not been practically imple- mented, as real liquids in the Nature and technologi- cal processes are multicomponent, “dirty” systems. On the basis of use of certain kinetic and hydraulic factors we for the first time succeeded to receive ex- perimentally a wave of negative pressure in real liq- uids, as a crude oil, water, solutions, etc. The wave of negative pressure is a turned soliton wave with one hump that is negative. It is a rather conservative wave, which mainly keeps its shape and dimensions reaching long distances with an acoustic sound veloc- ity. The technology provides generation negative pressure waves in the well using the special mecha- nisms that leads to the shock depression impact, and as a result, to considerable growth in the oil influx, bottom-hole cleaning, accompanied by essential sav- ing both reservoir and lifting energies, elimination and prevention of sandy bridging, paraffin, silt, wa- ter, etc. accumulations. For implementations of these technologies corre- sponding installations have been elaborated, in part, equipments for cleaning out of oil holes from sand plugs, increasing of efficiency and effectiveness of gas-lift well operations and bottom-hole pumping. Innovative Aspects and Main Advantages Elaborated technologies are based on idea of genera- tion of negative pressure waves in real hydraulic sys- tems which gives possibility to create the principally new energy saving technology and convenient instal- lations to increase effectiveness and efficiency of dif- ferent oil production and transportation processes. The technologies are more advantageous than existing ones. For example, in cleaning out of oil-holes from sand plugs the most operative and effective liquida- tion of different sand plugs irrespective of their rheological character is provided, associated with completed bottom-hole cleaning, essential increase of oil recovery and overhaul period. Elaborated equip- ment is simple and easy to use.