Devoted to 70 years of the Organization of the public federal project offices oil industry "Vostoknefteproekt" and 65 years anniversary of victory of the Soviet Union in the Great Patriotic war

The geoecological estimation of the Barents Sea area within the limits of Dolginskoye oil field is given. Physical, physicochemical, chemical and biological quantitative and qualitative parameters of the state of the sea ecosystem components: surface waters, surface bottom deposits and macrobenthos - are determined and analysed. The dynamic behavior of macrobenthos, natural and technogenic factors effect on it are established. It is offered to consider the presented data about the benthos communities state for the last decade as a basis for monitoring an ecological state of license areas at development of fields on a shelf. Natural factors of essential influence on processes of migration and accumulation of polluting substances are revealed.

Features of a geological structure and conditions of formation of sandstones of strip-like oil-bearing zone, extended for hundreds of kilometers along the Surgut arch western periphery, connected with Neokomian clinoforms, are considered.The technique of mapping operation and geological modeling of structurally complex hydrocarbon accumulations on the basis of complexation of data of drilling, well survey, core sample studying are shown. Mechanism of development of reservoirs, changes of their properties both laterally, and vertically are revealed.

Results of comparative corrosion tests of a cement stone samples in tap water and formation one with the content of salts of sodium, calcium and magnesium chlorides are given. Backfill compositions of various density (lightened, weighted and normal density), with various additives (blast-furnace slag, clay, bergmeal etc.), applied at wells casing, are tested.

This paper deals with interpretation methodology for structurally complex carbonate reservoir with defining of highpermeability and low-permeability zones of limestone development by lithogenetic properties based on which EOR techniques are recommended to be selected for oilfield applications.

Unconventional methodology of simultaneous production of the gas cap and heavy oil rim is applied. The reservoir simulation demonstrates that oil recovery can be improved when simultaneously producing the gas cap and oil rim while injecting water at the gas-oil contact.

It has been shown that treatment of productive intervals with polymer dispersed system leads to more uniform, compared with base case, displacement of mobile oil, thus increasing production. Polymer dispersed system increases sweep efficiency, thus adding to oil production, slowing down watering of the wellstream, and extending wells’ service life. It has also been shown that polymer flooding improves recovery not only from low-permeability intervals, but also from high-permeability washed zones. Results of modeling showed that polymer dispersed system injected in Aktashsky area in the vicinity of injection well No. 1667 in the Elkovskoye oil field yields additional 7500 tons of oil. Cumulative oil production by end of development exceeds that of the base case by 31 thous. tons.

Questions of application and perfection of modern methods of enhancing oil recovery for increase of efficiency of development of high-viscosity oil fields and fields with low-permeability reservoirs are considered. Stated are bases of two technologies of this innovative techno-technological complex – steam-gas and water-gas methods of stimulation. The state of the field approbation of its some compound components is shown.

Physical assumptions and equivalency of the multiphase flow equations are analyzed for the concepts of absolute and effective pore space. Expressions for equivalent compressibility characteristics of effective porous medium are derived considering connate water saturation.

Materials of application of control systems of ESP on technology of cyclic adaptation for the coordination of selection with inflow of extracting wells Приобского of a deposit are presented. Results of trade tests on 7 chinks of «Gazpromneft- Hantos» OOO are shown.

The article discusses the problems arising while estimating limiting values of water cut in oil gas-lift wells located in the offshore structure. Based on WOR analysis and intervals of revenue producing service of certain wells we propose the predictive estimate method of limiting values of well drowning.

Results of testing of proppants of various manufacturers are given. It is shown, that for the most of light proppants in a working interval of pressure (27-42 MPa) a degree of permeability reduction advances the density decrease, and high enough crushing resistance of such light proppants is provided not by perfection of their structure, but application of a polymer coating. The necessity to consider these factors at a proppants choice for hydrofracturing carrying out is noted.

Results of researches of distribution of vibration on length of the case a submerged centrifugal electropump for an oil recovery are submitted with is frequency - an adjustable drive

Questions of development of modern methodology of the pump equipment designing, when the scope of numerical experiments essentially extends, are considered. It is noted, that mathematical models allow to accelerate the develop ment and introduction of new technical equipment and energy-saving technologies.

This paper summarizes the results of pilot operation of electrical submersible pump with new generation control stations. The paper considers the most perspective areas of application of control stations with frequency controlled drive.

This paper summarizes the results of pilot operation of electrical submersible pump with new generation control stations. The paper considers the most perspective areas of application of control stations with frequency controlled drive.

Main methods of casing-head gas utilization in oil-gas condensate fields development was examined. It s shown that in the difficult of access remote oil producing regions it is possible to pump casing-head gas in a porous stratums for the purpose of temporary storing and subsequent using as a first stage of the casing-head gas utilization. Outlined proper porous stratums for the creation of temporary underground casing-head gas storages. Complex of technologies, which was developed and approved in underground gas storage is examined. It is shown application of these technologies in rational oil-gas condensate fields mining and temporary storing of casing-head gas.

The analysis of available standards and representations about reservoir and surface waters quality standardization at oil fields reservoirs flooding is carried out. Proposals for updating postulates of the basic standards, concerning admissibility of use of reservoir waters at flooding according to some basic characteristics, are made.

Realized is the project on development of software product and automation under the name the Automated system of the technical accounting of the electric power. The capability of an assessment of the pump operation comparative the passport characteristics in a real time mode is established. Capabilities of the Automated system of the technical accounting of the electric power are considered.

It is shown, that application of special chemical reagents can essentially intensify the process of oil-field sewage deoiling treatment in the conditions, modeling the operation of treatment facilities of oil treating units. Laboratory researches of some chemical reagents are given. The technique of efficiency of their application at treatment of wateroil emulsion with the small oil in water content is developed.

The new method of detection of oil leakage out of the petroleum pipeline is suggested (method of zonal location, ZL-method), which is based on definition of instantaneous distributions of pressure and flow rate of the liquid by the length of the pipeline's examined section (zone), based on the results of measuring of these parameters on the pipeline section ends.

Presented are the results of research on corrosion-dangerous microflora presence of soils of three Western Siberia oiland- gas fields: Kalchinskoye, Malo-Balykskoye and Vostochno-Urengojskoye. Dependence of corrosion rate of steel in soils from temperature and amount of microorganisms is investigated.

Various methods of an oil recovery, various systems of gathering and transport of oil and gas are considered. Thrown out substances are defined. Modeling calculations of total emissions in free air are executed.

The geoecological estimation of the Barents Sea area within the limits of Dolginskoye oil field is given. Physical, physicochemical, chemical and biological quantitative and qualitative parameters of the state of the sea ecosystem components: surface waters, surface bottom deposits and macrobenthos - are determined and analysed. The dynamic behavior of macrobenthos, natural and technogenic factors effect on it are established. It is offered to consider the presented data about the benthos communities state for the last decade as a basis for monitoring an ecological state of license areas at development of fields on a shelf. Natural factors of essential influence on processes of migration and accumulation of polluting substances are revealed.