Key words: sectoral science, oil, gas, problems, financing.

The analysis of sectoral science in the field of fuel-energy complex is carried out. The experience of foreign countries in the development of sectoral science in the oil and gas complex is considered. The scheme of functioning of the State Committee on Science and Technology in the field of oil recovery is presented. The measures to revive the sectoral science are offered for discussion.

Key words: non-traditional hydrocarbon resources, shale oil, organic matter.

The prospects of the development of shale oil facilities design methods in Tatarstan are considered.

A program for evaluation of oil and gas deposits prospects is worked out. The stages of its realization are described. A preliminary estimate of the cost of the program is made.

Key words: oil, basement, Western Siberia, reservoirs, organic matter.

Methodical approach to probabilistic estimation of oil and gas prospects of local objects is to define the integral probability of main geological and geochemical factors, affecting on the formation of oil and gas accumulations in fractured-cavernous rocks. The program "Choice" was used. The most important factors are properties of reservoirs, impermeable beds, hydrocarbon traps, contents and type of organic substance of maternal thicknesses, generation of hydrocarbons.

Key words: Devonian, Kolgan Formation, sandstones, paleogeography, lithology traps.

The significant amount of geological and geophysical data including well logging, core studying, well testing and regional geology structure have been analyzed and systemized. The goal is determination of existent hydrocarbon deposits regularities and estimation of exploration prospects in terrigenous Kolgan Formation. The non-structural traps with cumulative recoverable hydrocarbon resources of more then 35 mln tons are predicting according to the results of work.

Key words: carbonate ramp, microfacies, recurrence, secondary changes.

This paper examines the cyclic structure of productive carbonate sediments bearing in mind the ramp depositional model. Different lithotypes depending on the intensity of the secondary dolomitization identified in the sedimentary cyclites. Low dolomitic lithotypes retain primary sedimentary features and meet the standard Flugel microfacies. The layered structure of the carbonate strata due to the manifestation of the high-frequency sedimentation cycles is shown with the new data.

Key words: Vostochno-Messoyakhskiy license area, geological structure, facies analysis, traps of lithological type.

The article introduces the results of geology and geophysics data integral analysis based on determination of depositional environment. The work objective is to build an actual lithofacies model. The model resulted from conducted research serves as a basis for reserves and resources estimation within the studied formation as well as for effective placement of exploration wells. Based on facies division of reservoirs, presumed traps of lithological type are determined and shaling lines between wells with different WOC level are justified.

Key words: Tyumen suite, reservoirs geometrization, estimation target, geological and statistical section, lithological heterogeneity.

Different approaches to estimation targets separation are considered on an example of Tyumen suite sediments of one of the fields of Western Siberia. It is shown, that geologically substantiated approach is also more rational in the view of reservoirs capacity conservation at oil deposits geometrization.

Key words:productive layer reservoir characteristics, rheological properties of the emulsion of drilling mud filtrate – oil, surfactant.

The causes of deterioration of productive layers reservoir characteristics while drilling in are considered. Special attention is paid to the study of the rheological properties of the emulsion of drilling mud filtrate - oil type. On the example of oil from Bugruvativskoye and Mylkivskoye fields, it is shown that, depending on the composition and concentration of the filtrate emulsions non-Newtonian properties may be shown and rheological parameters are high for certain values of concentrations. Optimal additions of surfactants to the drilling mud aimed at improvement of surface characteristics on the interphase boundary filtrate-oil significantly decrease viscosity properties of emulsions. The obtained results allow us to define the mechanism of decreasing of reservoir characteristics of productive layers as a result of drilling mud filtrate penetration and lay down new requirements to technologies, composition and properties of drilling muds for productive layers drilling in.

Key words: mud, the secondary crystallization, beds of precipitation, complications, aging sediment.

This paper examines the nature of the restriction borehole at the opening of thick salt. Raises issues related to complications during drilling in thick beds of precipitation. The article contains a physical-chemical basis of the process of secondary crystallization of salt on the walls of the well, the problem involves the prevention of secondary crystallization by modifying the environment mud. The results can be used to solve the problem of preventing the narrowing of the wellbore due salts crystallization on the walls of the well.

Key words: oil recovery, recoverable reserves, oil in place, displacement efficiency, enhanced oil recovery (EOR) methods, flooding, oil saturation, efficiency.

In this study, in order of critical discussion of the provisions in the articles "Once again on the oil recovery" (Oil Industry. - 2013. – No. 3. - pp. 40 - 44) and "On average designed producible oil index" (Oil Industry. - 2012. –No. 11 - pp. 112 - 115) is considered. Inconsistency (inapplicability) of the mathematical formulation of the average designed oil recovery factor used by the authors was shown. The key provisions of widely tested unified approach to solving the separation of additional oil production through the use of conventional bed stimulation and EOR and IOR technologies. The case study of the possibility of separating of the estimated oil displacement coefficients of the reservoir pressure maintenance method and EOR under the implementation of enhanced oil recovery methods on the oil fields with certain geological and physical characteristics is shown.

Key words: Bazhenov Formation, thermal-gas treatment, oxygen-containing mixture injection, kerogen, miscible drive, enhanced oil recovery.

In this paper we present new Russian oil-recovery method for exploiting the Bazhenov Formation’s deposits, which is based on the integration of the thermal and gas reservoir treatment. This method is carried out by the injection of the oxygen-containing mixture and its spontaneous exothermic oxidation reactions in situ. Based on the aggregation of long-term research it was established that such complex treatment, firstly, allows to increase dramatically oil recovery from the drained carbonate hydrophobic interlayers due to the effective displacing agent’s generation, and secondly, provides bringing into development the non-drained argillaceous-kerogenic interlayers due to their controlled heating from the drained interlayers, and at last thirdly, provides additional hydrocarbon recovery from the kerogen due to its cracking and pyrolysis. The results of the first phase of field tests in the pilot of the Sredne-Nazymskoye field (Bazhenov Formation) not only proved in principle the possibility of the new technology’s field implementation, but also confirmed main science-based positive effects of the thermal-gas treatment of the Bazhenov Formation’s deposits. It is established that this new technology is able to provide the value of oil recovery an order of magnitude greater than the depletion drive.

keywords: deposits, faults, formation, development, efficiently.

The discovery of hydrocarbon deposits in rocks of different lithology associated with faulting and the development of fractured reservoirs, which expands the prospects for searches of deposits within the entire Earth's crust, not only in its sedimentary cover. The dependence of productivity and reservoir saturation of the distance to faults due to the presence of oil and gas in the cracks and capillary channels commensurate with pores between which metabolic processes. Destruction zone are combined into a single multi-layer field hydrodynamic system, promote vertical migration of fluids from the exit to the surface.Creation or implementation of major depression flooding leads to the development of primary and flooding fracture capacity and isolation of stocks in the pore reservoirs. The high degree of localization of areas of increased productivity and the initial input to the development of the reservoir containing basic supplies promotes cross-flows and accelerated the development of fracture capacity of the field. Thus, insufficient consideration of reservoir and hydrodynamic models of reservoirs reduces the efficiency of searching and mining.

Key words: in situ combustion, differential scanning calorimetry, Arrhenius equation, upscaling.

In the present work crude oil oxidation mechanism due to in-situ combustion EOR technology is investigated. The oxidation kinetics’ data from calorimetric experiments is expressed in terms of the Arrhenius kinetic approach; the reaction parameters are estimated by several independent methods and used for the reaction model formation. The kinetic reaction model, including kinetic parameters approximation to the reservoir pressure is presented. The model is adjusted in accordance with the kinetic experimental curves.

Key words: innovative technology, wave methods, numerical reservoir simulation.

The stimulation technology of hydrocarbon raw production by high pressure impulses is really urgent nowadays. This is due to the fact that a large amount of deposits which are projected for field development are complex systems - fractured reservoirs complicated by presence of clay inclusions. Besides, the formations are often characterized by weak flowability. For example, the vast layers of the Bagenov deposit are very perspective, but too difficult for development because of low permeability of collector and high content of kerogen and shale deposits. The explosion impact technique is considered nowadays as the most perspective direction in field development of hard extractable hydrocarbon raw. The purpose of the present work is the numerical analysis of inleak stimulation by high pressure waves to fractured well. The computer estimation of safety using this shock action method is spent for data of real well that have been simulated by hydraulic fracturing techniques. The stimulation method by high pressure wave can be used as an independent stimulation method for low-permeability reservoirs of heavy hydrocarbons and as of additional stimulation method for reservoirs in which have already been applied another technologies such as fracturing. The simulation results of wave processing were used for real deposits forecasting.

Key words: productivity factor, seam pressure, formation pressure, deformations, gas content.

The article regards the features of the wells productivity coefficient changing with a decrease in formation and downhole pressures by the example of Magovskoye deposit (to T-fm). The authors made the calculations and created maps of changes of natural fractures openness in the reservoir areas drained by individual wells.

Key words: large-volume acid treatments, injection rate, reservoir coverage, estimation of incremental oil rate.

The primary method applied in Tatneft OAO to stimulate oil production from carbonate reservoirs is based on hydrochloric acid injection. Therefore, efficiency of hydrochloric acid treatments was analyzed depending on specific acid volumes and injection rates. In the course of the analysis, acid treatments were classified according to specific injection volumes, and a separate group of large-volume acid treatments was singled out. Acid penetration depth was estimated using a simple numerical model of acidizing process in carbonate reservoirs. 

Key words: hydraulic fracturing, high viscosity oil, rock mechanics, laboratory investigations, forced fracture closing, proppant, well efficiency, coiled tubing.

This article summarizes the experience that was obtained in hydraulic fracturing of high viscosity oil reservoir in the Samara region. As a result of fracturing operations conducted there was wells productivity multiplication. During operations preparation the analysis of world experience of similar reservoirs stimulation works was hold and fracturing technology was offered taking into account the Samara region geological features. Except the fracturing technology modification this article touches upon the wells production testing after stimulation. Also the results of laboratory testing of the core mechanical properties and proppant pack retained conductivity are analyzed.

Key words: oil field, reservoir, oil production rate, oil accumulation, horizontal well, hydraulic fracturing.

Carbonate reservoir performance can be improved through an optimum program of production enhancement operations based on screening criteria considering specific reservoir conditions of sel ected fields. One of the most efficient ways to maintain commercial oil production fr om poor quality reservoirs is drilling of multilateral horizontal wells and application of hydraulic fracturing or acid fracturing techniques.

Key words: fracturing, water isolation, fracturing fluid, selective waterproofing composition, viscosity, processing of the results.

The article describes the development of fracturing fluid with selective water shutoff properties. Presented liquid formulation developed with the required rheological properties, which will allow the use of hydraulic fracturing in wells with close aquifers and decrease the risk of high water cut after fracturing.

Key words: salinity, permeability, core, injection water, water compatibility, reservoir pressure maintenance.

It is known that for well killing saline specified predominantly.However, in some cases, with little repression there is a penetration of liquid into the reservoir which in turn causes a change in permeability in consequence of the interaction of the solution with formation water. In this regard, the article presents the results of research of the changes in the permeability of core samples at Verkhne-Shampinskoye field.

Key words: gel strength, kinetic mechanism , nanoparticles, inflection point .

Light metal nanoparticle additives effect on the strength of polymer gels, applying in oil recovery, is considered in this paper. As a result of executed studies the effect of increasing the gel system strength by 65 % at the addition of nanoparticles is found. The kinetic mechanism of the nanofiller effect on the gel formation process is presented and justified. It is shown, that the addition of the nanoparticles significantly alters the process of gelation and the gel system strength. Nanofiller application allows significantly to reduce polymer consumption and make cheaper obtained systems.

Key words: dynamometer card, sucker rod pump, dynamic load, valve leakage.

A mathematical model of joint motion of the sucker rod string and plunger in the cylinder at gas-water-oil mixture pumping fr om the deviating hole taking into account complications in the sucker rod pump operation: valve leakage, gas and emulsions effect, improper fit of the plunger in the cylinder. The behavior of dynamic loads on the polished rod at deviations from normal operation of sucker rod pump is predicted with the help of the proposed model. Calculated dynamometer cards are compared with the field measurements.

Key words: modeling, automation system, electric drive, frequency converter, AC motor.

In this article the automation system, including low-voltage frequency converter, step-up and step-down transformers, sine-wave filter on the output of the frequency converter and the smoothing mains reactor to control the high-voltage induction motor is examined. A mathematical model of the automation system is developed on the basis of the differential equations system (SDE). Program model of the automation system is developed for the study of transient processes.

 References

Key words: associated petroleum gas (APG), gas turbine unit, multi-zone combustion chamber, sustained combustibility, corrosion-active sulfur-containing surroundings.

The article is devoted to questions of APG recycling (wet, gray content and condensate content) in power plants with generation of electricity and thermal energy at marginal fields. To arrange a stable combustion of APG unstable composition and low caloric, on the one hand, and providing a predetermined level of non-uniformity of the temperature field of gas turbine inlet, on the other hand, multizone combustion chamber is developed with the combustion zone and the dilution zones. Settings are defined of single-shaft reducer gas turbine, using low-speed electric generator, which produces electric power 200 kW with consumer characteristics. It was defined regime, geometrical and thermal characteristics of a multi-zone combustion chamber. We carried out thermochemical and thermodynamic calculations to determine the parameters and composition of the working fluid to drive the turbine. Recommendations on the use of heat-resistant and heat-resistant alloys for the manufacture of structural elements of the "hot" path gas turbine. The data obtained can be used in the development of recycling facilities at marginal fields.

Key words: oil products pipeline transportation, pipelines heat-insulation, electrical heating of pipelines, and engineering.

The article presents a comparative evaluation of various types of oil-and-gas pipelines heat-insulation for the Far North regions. It their shows a complex comparison based on the example of gathering line systems extended for 43 km.  

Key words: asphaltene-resin-paraffin deposits (ARPD) inhibitor, depressor, methodology, pipeline, efficiency

The article describes experience in application of methodic approaches for asphaltene-resin-paraffin deposits (ARPD) inhibitors and depressor additives (developed in Giprovostokneft OJSC) efficiency study, considering process conditions of oil field and pipeline transportation facilities’ functioning, when handling specific oil. Application of ARPD inhibitors and depressors is associated with necessity to prevent ARPD forming in oil field and pipeline systems, to improve oil’s transportable properties, to increase safe period of shutdown pipelines’ down-time and to reduce start-up pressure, when transportation is re-started. Studies are described by the example of Suzunskoye field’s oil. As the result, the selected chemical combined ARPD-inhibiting and depressor properties. Application range for these results is high-viscous and high-setting oil production, gathering and transportation facilities in order to enhance efficiency of their functioning. Use of our results supports frequency of paraffin cutting at equipment reducing by 3-4, deposits are weak and can be easily removed, fluid resistance in pipelines is reduced and cost of fluid transportation, pipeline safe shutdown time is increased and start-up pressure is reduced, when transportation is re-started, reliability and safety of all oil field and pipeline system is enhanced.

Key words: fiberglass plastic, plastic binder, over molecular structure, nanosecond electromagnetic pulses, electromagnetic field, strength.

The article describes the new method of forming of high strengthdetail fromplastic binder anddesign of experimental apparatus. Results of experimental researches of over molecular plastic binder structure by means of REM and IRS methods and results of strength researches are presented.