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December 2011




Geology and geologo-prospecting works


S.F. Khafizov, Yu.V. Filippovich, N.N. Kosenkova, V.E. Verzhbitsky, I.V. Istomina (Gazpromneft NTC LLC)
Methodology of regional studies of Gazpromneft NTC LLC

Modern methods and technologies used by Gazpromneft NTC LLC at realization of regional projects are presented. The schematic diagram of the method of regional works execution is given. The importance of regional studies that resulted in the selection of promising for subsoil use sites is marked.

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V.V. Larichev (Gazprom neft OJSC)
Formation of saliferous oil and gas basins covers

The genesis of salt-bearing sections of oil and gas basins from positions of evaporite and endogenous hypotheses and conditions of formation of salt domes by the example of the Caspian depression are considered.

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S.V. Malysheva, V.E. Vasilyev, N.N. Kosenkova, V.E. Verzhbitskiy, V.V. Ananyev, D.K. Komissarov, R.R. Murzin (Gazpromneft NTC LLC), Yu.V. Roslov (Seismoshelf LLC)
Modeling of petroleum systems of South Kara Basin: principles and results

Basin modeling for South Kara Basin was performed with use of Temis Suite 2008 software in 3D format to determine timing and scale of hydrocarbon generation and to predict the most favorable migration paths and hydrocarbon accumulation areas. Sedimentation modeling in Dionisos software was performed prior to the HC system modeling. That enabled to forecast the most probable distribution of lithofacies, including source rocks, reservoirs and seals at qualitatively new level. The key role of Jurassic source rocks in hydrocarbon fields formed in South Kara Basin is discussed in the study. The main practical result of the study is a resource estimate and phase forecast. As it is shown in the study, new large HC discoveries with sufficient liquid component are likely to be made in South Kara Basin.

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V.E. Verzhbitsky, R.R. Murzin, V.E. Vasilyev, S.V. Malysheva, V.V. Ananyev, D.K. Komissarov (Gazpromneft NTC LLC), Yu.V. Roslov (Seismoshelf LLC)
New look at the seismic stratigraphy and hydrocarbon systems of Paleozoic sedimentary rocks of North Kara shelf

North Kara shelf is one of the poorly explored, but highly prospective area for hydrocarbon discoveries in Russian Arctic. Based on marine seismic and onshore geology data we recognized three main unconformities within the North Kara shelf: Late Baikalian, Caledonian and Herzinian. We believe that general structural pattern of the North Kara region was formed in Late Carboniferous-Early Permian time as a result of collision-related orogeny of Taimyr-Severnaya Zemlya domain. The re-interpretation of seismic data and subsequent basin modeling led us to conclusion that North Kara may represent mostly gas-bearing basin due to the high maturity of Lower Paleozoic source rocks.

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E.A. Savinov, N.Yu. Moskalenko, N.V. Gilmanova (Gazpromneft NTC LLC), I.V. Novosadova, R.S. Shulga (SibNIINP OAO)
Analysis of the results of laboratory determinations of open porosity of weakly consolidated core of PК1-3 layers of Western and Eastern Messoyakhskoye fields

Laboratory methods for determining the porosity of PК1-3 layers of Western and Eastern Messoyakhskoye fields are considered. It is shown that the difference in porosity may be due to both lithological factors (composition and amount of clay cement) and the compressibility of the samples (swaging pressure generation at the helium porosity measurement) and preparation of samples for research (the degree of saturation).

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E.O. Belyakov, D.M. Makukho (Gazpromneft NTC LLC)
Increasing the reliability of the interpretation of well logging data by utilization of the capillary model of pore space by the example of АS102 sediments of the Zimneye field

The approaches to the substantiation of petrophysical models of capacitive – filtration properties of reservoirs, developed on the basis of the model of the reservoir oil saturation transition zone by the example of the AS10 layer of the Zimneye field. It is shown that the use of additional information in the form of the transition zone model allows to increase the reliability of estimates of reservoirs filtration parameters, to clarify the quantitative criteria of their selection and the type of the pore space saturation distribution.

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Working out and operation of oil deposits


A.V. Baryshnikov, O.A. Kofanov, D.R. Galeev (Gazpromneft-Khantos LLC), A.I. Ipatov, M.I. Kremenetskiy (Gazpromneft NTC LLC), R.F. Shaimardanov (Lift Oil LLC)
Bottom-hole production monitoring of comingled reservoirs by different technologies

This paper describes the process of long-term monitoring of production well parameters operated with ESP. Capabilities of stationary down-hole monitoring systems and well surveys with Y-Tool system are presented.

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K.V. Strizhnev, A.A. Groman, M.I. Kuzmin (Gazpromneft NTC LLC), E.A. Rumyantseva (Centre of Laboratory Engineering LLC)
Substantiation and development of polymer flooding technology in heterogeneous stratum for increasing the efficiency of extraction

The use of polymer flooding is currently the most promising physical and chemical methods of enhanced oil recovery in fields with complex structure and in the presence of high heterogeneity of rock permeability. This technology allows for avoiding the accelerated water cut and thereby increases the value of the ultimate oil recovery for the conditions of Sugmutskoye field.

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N.Yu. Moskalenko, N.V. Gilmanova, S.V. Samorokov, A.G. Orlov (Gazpromneft NTC LLC)
Use of relative phase permeabilities to determine the critical water saturations and stratum drowning rate by the example of Gazprom neft OJSC fields

The influence of the preparation of core samples at creation a column for the relative phase permeabilities experiments to determine the end points on the relative phase permeabilities curves, critical water saturation on oil-water contact and the rate of flooding is shown. It is revealed that shift of the endpoints of the relative phase permeabilities curves occurs at violation of the requirements of OST-39-235-89 on creation a residual water saturation in the core column.

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A.N. Yanin, K.E. Yanin (Project Office TERM LLC), A.V. Baryshnikov (Gazpromneft-Khantos LLC)
Technical and economic efficiency of simultaneous-separate water injection at the Southern license area of Priobskoye field

Annual oil afterproduction at the Southern license area of Priobskoye field in 2005-2010 through the introduction of the equipment for simultaneous-separate water injection is determined on the basis of V.D. Lysenko analytical method and three-dimensional mathematical modeling. The actual economic effect resulting from the mass implementation of this technology is calculated.

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O.A. Loznyuk (Gazpromneft - Noyabrskneftegaz JSC), A.A. Alvard, E.A. Rukavchuk (Gazpromneft NTC LLC)
Analysis of the effectiveness of the reservoir pressure maintenance system at the main object of development of Vyngapurovskoye field

The high efficiency of the created reservoir pressure maintenance system at the main object of development of Vyngapurovskoye field - BV8 stratum is marked. Unreasonableness of flooding through a linear cutting sets of wells is stated. Continuation of the fluid withdrawals reduction compensation by pumping at the expense of the injection volumes redistribution along the wells, increase reservoirs sweep by injection through combined flooding with polymers and surfactants injection and use of sediment formation technology are recommended.

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A.A. Ridel, R.A. Garifullina, A.S. Margarit, O.V. Kvasnitsa (Gazpromneft NTС LLC), A.V. Kolmakov (Gazpromdobycha Noyabrsk LLC)
An integrated approach to the study of producing horizons inhomogeneities - providing high-quality adaptation of digital models

The problem of assessing the impact of filtration-capacitive properties change and cut heterogeneity on the nature of the hydrodynamic processes occurring in the developed stratum is considered. The given information is extremely important from viewpoint of rational production, recovery rate increase, and economic efficiency of the development of deposit in general.

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S.V. Mikhajlova, Yu.V. Filippovich (Gazpromneft NTC LLC)
The method to forecast the overpressure in inversion structures of Noyabrsk region, Western Siberia

The method to forecast the overpressure in inversion structures is described. On the basis of inversion modeling the forecast reservoir pressure values were estimated, the overpressure ratio map was made. The increase of oil flow in wells with an increase of overpressure ratio is noticed. The forecasting of high oil flows in zones of high values of overpressure ratio was proved by drilling in 2011.

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A.E. Simakov, A.S. Chinarov, M.V. Snachev (Gazpromneft NTC LLC)
The experience of the phase permeabilities vertical scaling at the hydrodynamic modeling of the Jurassic sediments of Yaraynerskoye field

The risks at the design of new wells on the basis of the model that are related to the incompleteness of use of laboratory determinations of the relative phase permeabilities are analyzed. A way of relative phase permeabilities curves vertical scaling and the method of conservation of the curvature of relative phase permeability curves are considered. The dependences and the general principles of laboratory data analysis for its use in the model are given. The model of the oil deposit of the Jurassic sediments of Yaraynerskoye field is used.

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Technics and technology of oil recovery


K.V. Strizhnev, A.V. Olyunin, R.N. Khasanshin (Gazpromneft NTC LLC), M.A. Azamatov, M.Yu. Gvozdev (Muravlenkovskneft Branch of Gazpromneft-NNG JSC)
Forecast of the efficiency of repair-insulation works using variance analysis by the example of fields of Muravlenkovskneft, a branch of Gazpromneft OAO

One of the most actual problems at planning the repair-insulation works is the selection of candidate wells for carrying out of actions. The experience of variance analysis use for the prediction of technological success and repair-insulation works efficiency is described. Based on the conducted analysis a tool for creating techniques of planning techno-economic efficiency of repair-insulation works is offered. The results of prediction are used to reduce risks, to increase profitability of repair-insulation works.

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V.A. Mazhar, A.A. Ridel, T.V. Levitskaya (Gazpromneft NTC LLC)
System analysis of the wells operation parameters as a basis for obtaining maximum information about the reservoir

The problems of integrated studies (interference test) to clarify the geological structure and hydrodynamic properties of one of the fields of the Noyabrskiy region are considered. By the example of the bottom-hole pressure change analysis practically through the all producing wells the possibility of obtaining information about the reservoir, its properties and development features is shown.

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M.A. Azamatov, A.N. Shorokhov (Muravlenkovskneft Branch of Gazpromneft – NNG JSC)
Application of the method for operative determination of production wells watering source

Different methods were developed to determine water source of oil production wells. However, its efficiency depends on correct initial data and available time for analysis. Petroleum engineers don’t have sufficient time for initial data preparation and performance of analysis. Express-method to determine water source of oil production wells is discussed.

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The oil-field equipment


A.M. Kunakova, .R.K. Faizullin, R.R. Gumerov (Gazpromneft NTC LLC), V.V. Sidorenko, A.G. Suleymanov (Gazpromneft-Khantoc LLC)
Monitoring of salt formation in the downhole equipment, prevention techniques of salt formation and their optimization in Gazpromneft-Khantos LLC

Inhibitory protection of underground equipment of producing wells of Gazpromneft-Khantos LLC against salt formation was introduced, optimization of inhibitory protection was carried out, and the system of monitoring of salt formation was implemented. The held activities enabled to significantly increase the overhaul period of work of the underground equipment.

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Geology and geologo-prospecting works


V.G. Miroshkin (NK Rosneft – NTC LLC)
Geological model and cyclic recurrence in formating of Upper Carboniferous reef building complex sequence at Sandiveyskoye field

Article presents results of litho-facies analysis of Upper Carboniferous sediments and estimation of bioherm structures spatial distribution within Sandiveyskoye field.

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V.D. Motruk, A.M. Rusalin (Naryanmarneftegaz LLC)
Result of geological exploration in the varandey-adzva structure zone

The study presents the results of geological exploration across the Varandey-Adzva structural zone. Reasons have been identified for non-confirmation of earlier mapped structures, including structures of the 2nd order within the Talotinsky swell. The study shows methods for performing, processing and interpretation of seismic data within subthrust zones.

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S.R. Bembel (Tyumen Branch of SurgutNIPIneft)
The concept of degassing, geodynamics and fluid dynamics and their geosoliton component at predicting and mapping of oil and gas deposits

Prediction and mapping of migration routes and sites of formation of hydrocarbons deposits are not possible without the use of the Earth degassing concept, geodynamics and fluid dynamics concepts of the fields’ formation. Integration of scientific lines at system approach opens the new ways and approaches to exploration and development of oil and gas fields. Examples of the manifestation of active degassing, geo- and fluid dynamics, geosoliton activity at the time seismic profiles of different oil-and-gas bearing areas of Western Siberia are given.

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N.P. Zapivalov (Institute of Petroleum Geology and Geophysics of the SB RAS)
On the threshold of critical state of fluid-saturated systems, longevity of oilfields, and high final production rate

Nowadays, the problem of enhanced and improved oil recovery is a key one in petroleum theory and practice. Many enhanced oil recovery methods (EOR) are currently being used at local oilfields. But forcible secondary, tertiary and quaternary methods of enhanced oil recovery do not provide a scale effect. There are about 1500 active projects in the world using various EOR technologies, and their annual production build-up is estimated as 100-120 million tons. It is just about 2% of all produced oil in the world, which is equivalent to the total transporting and other losses. In terms of the final oil recovery, at many oilfields the efficiency of EOR is very low or zero. The author offers a fundamentally new scientifical-technological paradigm of exploitation, preservation, and rehabilitation of petroleum resources.

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Drilling of chinks


R.M. Vafin, A.Ya. Zakirov (Saint-Petersburg State Mining University)
K.K. Robus biopolymer as a regulator of structurally rheological properties of drilling fluids

The experimental results of the basic properties of drilling fluids with different biopolymers are discussed. The rheological profiles of water solutions of biopolymers are given. The dependences of biopolymers concentration to structurally rheological properties of drilling fluids are established.

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Working out and operation of oil deposits


V.V. Mulyak (LUKOIL OAO), N.A. Lyadova (PermNIPIneft Branch of LUKOIL-Engineering LLC in Perm), V.L. Voevodkin (LUKOIL-PERM LLC)
Improving the efficiency of fields development at a late stage as a complex organizational and technological task

The state of LUKOIL-PERM LLC fields development and performance indicators of geological and technical measures in 2010-2011 are considered. The results of scientific maintenance and introduction of new, complex organizational and technological solutions in the fields of the Perm region are given. The technologies, which are planned to test in the fields of LUKOIL-PERM LLC in the near future, are pointed out.

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Plynin V.V., Fomkin A.V, Urazov S.S. (Zarubezhneft JSC)
Chemical transformation model for numerical simulation of the oxidation of oil in the reservoir (in situ combustion)

Projects to develop oil fields, which include air injection, potentially very effective, especially when extraction of heavy oil. However, to date, in situ combustion is poorly studied, and hugely complex for numerical simulation.  It is shown that the major problem is the creation of an adequate chemical transformations model (CTМ). An approach to forming CTМ is proposed on the basis of three principles, which avoids a number of blunders committed by some researchers. The article provides an example of the formation of CTМ based on the proposed approach and its discussion.

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K.G. Russkikh, E.V. Lozin, G.G. Murzagulov, R.R. Zagirov (BashNIPIneft LLC) A.V. Shuvalov (Bashneft-Dobyicha LLC)
Laboratory testing of precipitating and gel-forming agents efficiency for residual oil recovery

Both the conventional widely applied and the advanced precipitating and gel-forming agents for residual oil recovery are reviewed. The results of the experiments on residual oil recovery with the use of precipitating and gel-forming agents on the Tournaisian, Artinskian, Famennian, and the Kynovian core samples from certain oil fields in the Republic of Bashkortostan are analyzed. Conclusions are drawn as to the efficiency of the reviewed precipitating and gel-forming agents for residual oil recovery.

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I.I. Efremov (Central Geophysical Expedition OJSC)
Determination of geological heterogeneities producing formations on the basis of spatial-temporal interpolation

It is identified shortcomings of digital 3D geological models of oil and gas in its adaptation to the development history. It is shown that the results of a study of deviations of actual rates of development for the project data often have very valuable information, particularly about the structure of the fractured reservoirs, the presence of channel filtering on areas previously undetected areas of destruction. The presented method based on the process of spatial-temporal interpolation of data obtained from the monthly performance report. Using techniques to determine the geological previously unidentified heterogeneity, hydrodynamically correctly adapt the original model to the geological features of the real field.

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B.A. Suleimanov, F.S. Ismailov, O.A. Dyshin, N.I. Huseinova (OilGasScientificResearchProject Institute of State Oil Company of Azerbaijan Republic)
Analysis of oil deposit exploration state on the base of multifractal approach

On the base of multifractal approach the method is suggested in order to diagnost the current state of lay system. This method allow to bring decision over regulation and control on line regime  by deposit exploration. The dynamic change of generalization fractal dimension are considered for time series values of current oil production. An estimation of self organization for exploration process is given to select most effective method of deposit action and its aim direct correction at different deposit exploration stages.

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A.S. Mikhin, V.S. Slavkin (LUKOIL-Engineering LLC)
Drainage of oil reserves accumulated in zones of high vertical heterogeneity of reservoir by means of hydraulic refrac

Authors of article on the basis of the analysis of numerous researches offer involving methodology in active working out of zones of a residual petrosaturation of lateral distribution by means of management of a direction of distribution of hydraulic frac that is extremely simple, extremely effective and economic method for involving in working out of zones of a residual petrosaturation.

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Standardization and technical regulation


G.S. Abramov (Sibnefteavtomatika OJSC, HMS Group)
Experience of introduction of the state Neftekontrol system

The GOST R 8.615, in which the metrological requirements to instrumentation at the oil well heads and license sites are formulated, is developed and approved. It is noted that the ubiquitous compulsory introduction of GOST R 8.615 requirements will be the first and important step in forming of the state system of control of production, treating and further selling of the recovered oil and petroleum gas practically along the full production chain - from oil well to commercial accounting units, including the consumption of oil and petroleum gas for own technological needs.

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The oil-field equipment


V.A. Iktisanov, N.Kh. Musabirova, K.F. Shipilova, R.R. Gallyamov, A,V, Bajgushev (TatNIPIneft)
Permanent downhole gauges advantages for recording of long-term pressure and flow rate data

Different approaches to interpretation of the long-term pressure and flow rate data recorded using permanent downhole gauges are discussed. It has been demonstrated that vs. conventional pressure buildup curves, long-term pressure and flow rate data is a source of more reliable information. A case study of production analysis using Topaz software is presented.

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Information technology



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Transport and oil preparation


A.N. Korkishko (LUKOIL - Western Siberia LLC), Sh.I. Rakhmatullin (of the Republic of Bashkortostan Academy of Sciences), V.G. Karamyshev ((Institute of Power Resource Transport SUE))
Features of the calculation of the nonstable fluids outflow from emergency cracks

An algorithm for calculating the parameters of the process of nonstable fluids outflow from emergency cracks at head pressure above critical is considered. Metering characteristic of the cylindrical nozzle at jet separation is given. Recommendations for the calculation of liquefied hydrocarbon gas outflows are given.

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From history of development of petroleum industry



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