R.Kh. Muslimov (Kazan Federal University) Improving geological study of subsoils - the basis of innovation and modernization of the oil industry in the Energy Strategy of the Republic of Tatarstan up to 2030 The state of oil industry of the Republic of Tatarstan was analyzed at Energy Strategy - 2030 substantiation, disadvantages and problems are revealed. The analysis of the state and structure of reserves and resources of the republic is fulfilled by the method, taking into account quantitative and qualitative components. Multivariant calculations of oil recovery on the basis of proven methods and technologies of the development and production of oil are conducted. The possibility and technical and economic efficiency of high-volume oil production at achieved volumes of development drilling are established. The need of modernization of the oil industry of the republic and the development of innovative technologies of mining is noted. Key words: energy strategy, geological study of subsurface resources, structure of reserves and re resources, innovative field development, improved field development Login or register before ordering

T.N. Smagina; S.F. Khafizov, I.I. Dyakonov, А.N. Shandrygin (Gazpromneft NTC LLC) The principles of hydrocarbon reserves ranging The article covers the methods of oil reserves ranging based on the level of preparation for the development that accounts for the complex geophysical exploration level and the efficiency of hydrocarbon extraction. Key words: oil, reserves, estimation of reserves, knowledge of the reservoir, ranging, reserves classification Login or register before ordering

T.G. Nemirovich, I.G. Knyazeva, Ya.A. Miryasova (TNNC LLC) The improvement of Dkt geological aspects, Donetsko-Syrtovskoye field, through the use of lithofacies When the facies variations are neglected, that leads to errors in evaluating well deliverability. More accurate prediction of intervals with better reservoir properties have ultimately been achieved through the comprehensive approach, which includes integrated seismic, core, and log data study and is based on sedimentological analysis and paleoenvironment reconstruction. This approach helps to identify regularities in reservoir formation, lithotypes and facies by their genetic features. Key words: facies, lithotypes, median grain size, fuzzy logic method Login or register before ordering

D.A. Kozhevnikov, K.V. Kovalenko, I.S. Deshenenkov (Gubkin Russian State University of Oil and Gas) Hydrocarbon saturation determination with the adaptive resistivity log data analysis Hydrocarbon saturation determination on resistivity log data technique is developed. It is based on reservoir rocks petrophysical invariance and log analysis algorithms adaptivity principles. This technique increases log analysis results accuracy and reliability due to the sufficient reduction of error sources. The comparative evaluation of input data uncertainties influence on hydrocarbon saturation calculation results is presented for adaptive and conventional log analysis. Key words: reservoir rocks, resistivity log, log analysis, adaptive technique, hydrocarbon saturation Login or register before ordering

V.D. Gorgots (Tyumen Branch of SurgutNIPIneft) The method of design facilities and technologies of wells completions for complex structure deposits The classification of deposits by the complexity of their structure, allowing to carry out the substantiation and selection of the most effective technologies of wells completions, is created. The high-precision method GOR-VSKRYTIYE-OSVOENITE-1, allowing to fulfill design and operative change of hole bottom shape and wells completion technologies in accordance with deposit mining and geological properties, changing in time and space, is developed. In addition, it allows at the design of projects and mining technological schemes to determine the optimal form and content of the hole bottoms in space of developed deposit and in time of their effective development and operation. The solution of the problem of an integrated approach to the design processes of producing formation exposing and development according to the actual mining and geological conditions is proposed. Key words: classification of deposits by the complexity, insulating screens breakthrough, instant filtering, penetration zone, flow rate, rock drill, drilling mud, the allowable depression, inflow profile Login or register before ordering

R.R. Iskhakov, C.A. Voronov, A.I. Ermolaev, V.V. Voronova (Gubkin Russian State University of Oil and Gas) Methodical approaches of second wellbore designing at the last stage of Western Siberian fields development Second wellbores drilling is one of the perspective ways for gas withdrawal. In article the possibility for realization of well-candidates selection procedure by means of a method of the hierarchy’s analysis is described. Methodical approaches of wells complex estimation and ranging of their separate characteristics according to five-point system is resulted. Estimation is carried out according to influence of each characteristic on efficiency of action. Key words: designing, second wellbore, gas fields wells, final stage of development Login or register before ordering

V.V. Karabanov, I.O. Bokhorov Solving of the problem of tightness and reliability of the well casings The modern problems of threaded boring casings are considered. The necessity of replacing them with soldered columns is substantiated. The technique and technology of induction brazing of boring casings are described. Their importance and advantages over welded and threaded columns are shown. Key words: well casings, columns, threaded joints, tightness, induction brazing, soldered joints Login or register before ordering

V.V. Lavrov, K.M. Fedorov (Academy of Oil and Gas Engineering), V.L. Terentyev (Research Center OILTEAM) Competences formation in Russian shelf development & exploitation Today competences formation in the field of techniques and technologies of shelf and marine reservoirs development and exploitation is a significant objective for Russian petroleum industry. The existing approaches to this problem solution are presented in the paper. This analysis showed that the efforts of several universities are not enough to solve the challenge of the modern moment. The project of the Academy of oil and gas engineering is described; the main target is the formation of professional competence in shelf and marine fields development. The key objectives and approaches of their solution are presented. Key words: shelf and marine oil and gas fields, competences, Russian Arctic shelf, Bachelor and Master educational programs, Russian-foreign universities mutual projects, Robert Gordon University Login or register before ordering

О.P. Andreev, S.V. Mazanov (Gazprom dobycha Yamburg LLC), D.А. Mirzoev (CKBN SOJSC Gazprom OJSC), V.N. Maslov, А.V. Krasovskiy (TyumenNIIgiprogaz LLC) Concept of integrated development of hydrocarbon resources of the Ob and Taz bays and adjacent dry land The article considers the concept of integrated development of raw hydrocarbons fields in the north of Yamal-Nenets Autonomous District adjacent to Yamburgskoye gas-condensate field which will allow to compensate here the declining gas production. The economic efficiency of the integrated development of fields of the Gulf of Ob and Taz Bay and adjacent dry land is presented. Key words: hydrocarbon resources, development of gas reservoirs, natural and climatic conditions, integrated development, multilateral wells, gas-transport pipelines, economic efficiency, offshore fields Login or register before ordering

V.P. Zakharov, T.A. Ismagilov (RN-UfaNIPIneft LLC), R.N. Asmandiyarov (RN-Yuganskneftegaz LLC) New methods of filtration flows adjustment in low permeability reservoirs with water shutoff This paper suggests a sweep improvement method by flooding low permeable reservoirs using addressed shutoff of injected water. Candidate wells selection criteria and technology are specified. Key words: crack, water shutoff, low-permeability reservoir, enhanced oil recovery, sweep efficiency Login or register before ordering

G.M. Nemirovich, A.S. Timchuk (TNNC LLC) Features of development of the object assembled by the strata of different genesis An algorithm and the main results of a complex analysis of the state of development of multi-strata objects of the Volga-Ural petroleum province are given. Filtration-capacitive properties of each productive stratum on the previously accepted view and after it refinement are compared. Models of conductivity are refined. Lines of optimization of multi-strata object development are revealed. Key words: multi-strata object of development, facies, production of reserves, management of development Login or register before ordering

A.N. Ivanov, A.I. Shchekin (Vietsovpetro JV) Identification of non-flooded areas under combined recovery drive The article reviews features of non-flooded areas identification under combined recovery drive. The material balance method, applied to define the impact of depletion on oil recovery, serves as the basis for evaluation of the flooding pattern effectiveness. The study of flooding efficiency, with consideration of depletion, enhances precision of non-flooded areas identification. Key words: flooding efficiency, combined recovery drive, material balance method, non-flooded areas Login or register before ordering

Yu.V. Shulyev, M.A. Vinokhodov (Slavneft-Megionneftegaz OAO), D.Yu. Kryanev, A.M. Petrakov, A.I. Shilova, R.Yu. Zhukov (VNIIneft OAO) The use of the methods of improved oil recovery and address wells treatments at the fields of Slavneft-Megionneftegaz OAO The technique of the criterion selection of the objects of availability for implementation of non-stationary flooding technology is developed and approved in the conditions of Slavneft-Megionneftegaz OAO fields. New chemical reagents compositions for the alignment of the profile of water injection well and stimulation of oil production, including in conditions of highly partitioned low-permeable reservoirs, are developed and tested. The possibility of realization of unsteady flooding and address wells treatments for the alignment of the profile of water injection well in conditions of low-permeable reservoirs is shown. Key words: nonstationary fooding, enhanced oil recovery, address processing wells Login or register before ordering

B.F. Borisov, V.E. Vasilistova, O.L. Kuzovenkova, O.Yu. Lepeshkina, T.G. Shults (Giprovostokneft OJSC) Low limits of Tournaisian stage formation porosity The article provides for results of defining porosity low limits of Tournaisian stage producers having different reservoir and saturating oil properties. 19 Tournaisian stage fields located mainly in Samara region were taken for the analysis. Limit values were defined by 3 methods. Using methods gave close values. Reservoir oil viscosity impact on porosity low limits was studied. Obtained values of porosity low limits can be used when substantiating Tournaisian stage «reservoir – non reservoir» criteria for other fields with insufficient or missing appropriate input data. Key words: low limit of porosity, reservoir, oil saturation, viscosity Login or register before ordering

L.M. Ruzin (Ukhta State Technical University) Innovative lines of high viscosity oil and bitumen deposits development The geological and physical characteristics of Yaregskoye and Usinskoye high viscosity oil deposits that have influenced the choice of fields development systems are considered. The stages of development of productive objects stimulation technologies are shown. The numerical simulation and routine analysis of results of thermal methods application at these fields are executed. Key words: high viscosity oil, new technologies, thermal method of oil recovery, oil mining, cyclic steam treatment, horizontal wells Login or register before ordering

L.М. Petrova, N. А. Abbakumova, D. N. Borisov, I.M. Zaidullin, Т.R. Foss, М.R. Yakubov, I.Sh. Khusnutdinov (A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Centre of RAS) Influence of component contents and structure characteristics of the components on heavy oils stability to asphaltene precipitation The study is aimed to investigate stability of heavy oil from Ashalchinskoye and Mordovo-Karmalskoye fields in regards to asphaltene precipitation. Microscopic observations intensity asphaltene precipitation by adding n-heptane to the oils were used. The asphaltene stability was investigated based on the optical density versus time of asphaltene toluene/n-heptane solutions by spectrophotometry. SARA analysis, gas-liquid chromatography and FTIR spectroscopy were used to characterize the heavy oils components. Key words: oil stability, asphaltenes, spectrophotometry, Fourier transmission infra-red spectroscopy (FTIR) Login or register before ordering

G.P. Kayukova, S.M. Petrov, G.V. Romanov (A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scentific Centre of RAS), I.R. Sakhibgareev (Kazan National Research Technological University) Features of the heavy oil composition change during Mordovo-Karmalskoye field operation It is shown that use of  two technologies - thermal-steam treatment and in-situ combustion at Mordovo-Karmalskoye heavy oil field allows to produce two types of oil: heavy oil of B2 type, without wax, do not differ practically from the original type, and a lighter oil of A2 type, partially diluted by the thermal cracking products. The composition of extracted oil taking into account the applied technologies changes insignificantly during the long development of the field. Gathering oil from the given field remains the nature of the mother oil, but it is less viscous and therefore more transportable. Key words: heavy oil, bitumen, composition, properties, development, thermal methods of oil recovery Login or register before ordering

I.N. Khakimzyanov (TatNIPIneft) Horizontal drilling technologies in Tatarstan The author discusses the history of horizontal drilling and more than thirty years’ experience of horizontal laterals and horizontally extended reached wells’ operation in the Republic of Tatarstan. The application potential of horizontal technologies by Tatneft OAO is associated with further improvement of the knowledge base and development of the relevant procedure. Based on the pilot results, three categories of probability of success and efficiency of the Company’s development targets have been recognized. Key words: horizontal well, horizontal drainhole well, side-hole, horizontal side-hole, horizon, age, oil production rate, knowledge map, business plan Login or register before ordering

A.A. Al-Salеhi (The Geology Institute of Azerbaijan Academy of Science) The method for gusher well parameters calculation In the article the new calculation method of definition of bottom-hole pressure in a oil well is presented. Due to fundamentally new approach to definition of parameter regarding relative slip of phases, the accuracy of pressure definition has essentially increased. Key words: well, flowing, bottom-hole pressure, gaslift, gas and oil system, motion equation Login or register before ordering

R.A. Yanturin (Rostneftekhim ZAO), A.F. Zainullin (BashNIPIneft LLC), A.Sh. Yanturin (Geophysika NPF JSC), A.Kh. Gabzalilova (Ufa State Petroleum Technological Iniversity) On methods of calculating the axial load in the columns of rods, drill pipes, casings and tubing strings Results of the analysis of solution of the tasks to determine the loss of axial load along the length of different types of columns based on their longitudinal and transverse strain in directional wells are presented. It is shown that the neglect of the magnitudes of transverse loads and shear forces leads to an error of calculation of loss of axial load on the friction along the length of the oil field column at its bottom spirally deformed area. The irrationality of such methods of calculation for directional and horizontal wells is confirmed. Key words: local borehole curving, transverse-longitudinal deformation, helical spiral, pitch stability, friction coefficient, bending moment, shear load, transverse load, radius-vector, colomn curvature Login or register before ordering

N.G. Fedorova (SevKavNIPIgaz OAO) On the prediction of the construction individual life time The prediction of the construction residual life by load-carrying capacity in the modern aspect is considered. It is proposed to calculate the load-carrying capacity characteristic of the damaged construction using the program software based on the finite element method. The relationship between the individual life prediction and assessment of the current technical condition and load-carrying capacity monitoring of construction is considered. Key words: technical condition, diagnostic operations, corrosion, load-carrying capacity, individual life time Login or register before ordering

M.M. Shats (P.I. Melnikov Permafrost Institute, Siberian Branch of RAS) Ecologo-permafrost problems of the Eastern Siberia-Pacific Ocean pipeline: modern state and perspectives The article shows complicated natural situation of the Eastern Siberia-Pacific Ocean pipeline influence zone, which is highly seismic and with frozen rocks developing in a complex way. Ecological geocryology problems are shown for different stages of designing, building and exploitation. Obligatory geotechnical monitoring is offered. Key words: natural situation, ecological geocryology problems, frozen rocks Login or register before ordering

S.N. Levin (RSTEK LLC), G.G. Vasiljev, A.N. Lavrentjeva (Gubkin Russian State University of Oil and Gas) Definition of terms ‘accident’, ‘failure’, ‘emergency situation’ The paper describes overview of definitions and differences between the terms "accident", "refusal" and "emergency situation" according to the applicable law of the Russian Federation, State Standards for fire safety and emergency situations, proposes description of the terms and general criteria of distinction. Key words: loss of efficiency, failure, emergency situation Login or register before ordering

O.E. Mishanina, E.V. Khisamutdinova, A.V. Arefjeva, A.E. Abrosimova (TatNIPIneft) Optimization of ecological monitoring of water bodies based on rehabilitation program efficiency estimation within the Tatneft OAO activity area The paper gives the estimate of efficiency of the existing system of ecological monitoring of water bodies on the territories of Tatneft E&P operations. Also, optimization of ecological monitoring of water bodies is discussed. Login or register before ordering