April 2011




СургутНИПИнефть - 25 years!



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Geology and prospecting works


S.R. Bembel, M.R. Bembel (Tyumen Branch of SurgutNIPIneft)
Improvement of 3D seismic prospecting technology for exploration and development of Western Siberia oil fields

Questions of application of 3D seismic prospecting in solving problems of geological survey and development of oil and gas fields are considered. As the line of increasing the effectiveness of 3D technologies the ways of increasing of the vertical and lateral resolution of the final results, some requirements for the methodology and execution of seismic operations are offered.

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D.A. Shchetinin, A.V. Skurikhin, Ya.A. Ignatyeva (Tyumen Branch of SurgutNIPIneft)
Application of the stratum and tomographic inversion technology in complex regions of Eastern Siberia for static solutions of the upper part of the section

The method of accounting of the velocity inhomogeneities effect in the upper part of the section with use of the time of the first arrivals of refracted waves by means of simulation of complex strata for obtaining static solutions is considered. Technique is tested on 2D seismic data in complex seismogeological conditions of East Siberia.

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V.D. Gorgots (Tyumen Branch of SurgutNIPIneft)
New methods and technologies for designing the processes of construction of wells in complex mining and geological conditions

The results of the first developed way of prediction of pore and rocks hydrofracturing pressures around the whole mountain massif section in the open borehole - GOR-PASCAL-FORECAST-1 are shown. The main formulas influencing the stability of the borehole are pointed. The calculations, the conditions of the depth of intermediate casing shoe descent and a new method of calculation - GOR-DEPTH-CASING STRING-1 are given. For an accurate determination of the seam roof with abnormally high formation pressure the first developed high-precision, automated complex of seam roof forecasting - GOR-FORECAST-ROOF-1 is given.

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V.V. Sudakova (Tyumen Branch of SurgutNIPIneft)
Tectonic structure of the northern part of Krasnoleninsky arch by 3D exploration seismic data

Questions of tectonic structure of the northern part of Krasnoleninskiy arch are considered. The main attention is paid to the problems of discontinuous faults selection by 3D exploration seismic data. It is concluded about significant effect of the fault tectonics on the generation of fractured reservoirs in the pre-Jurassic rock complex and the formation of oil deposits. The obtained conclusions provide additional criteria for the prediction of reservoirs and oil-bearing zones of pre-Jurassic rocks.

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K.A. Kostenevich, I.V. Fedortsov (Tyumen Branch of SurgutNIPIneft)
Foundation of litho-facial regularities of reservoirs propagation in the complex structure deposits

For the Vikulovian deposits of Krasnoleninsk dome with a complex facial structure a necessity is proved for recognition of rock lithologic-petrophysical types. Various types of rocks with specific lithologic-petrophysical characteristics in the oil-bearing formation should be taken into account during geological and reservoir modeling.

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O.A. Kulagin (Tyumen Branch of SurgutNIPIneft)
Mapping of thrusts in the south of Eastern Siberia

The results of integrated interpretation of seismic and drilling data, existing geological and geophysical materials within the southern slope of the Nepsko-Botuobinskaya anticlise are presented. The basic principles of mapping of thrusts, with which certain prospects of oil-and-gas content are connected according to seismic observations, are covered.

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E.A. Malevannaya, A.S. Finogenova (Tyumen Branch of SurgutNIPIneft)
Application of seismic facies analysis at the study of Neocomian strata reservoirs distribution by the example of Shirotnoye Priobye fields

The need to solve the problem of selection the areas of improved reservoir properties, which arises in the process of prospecting and exploration of non-anticline type objects, is noted. The examples of application of seismic facies analysis together with the data of wells study in the Shirotnoye Priobye fields to solve this problem are considered. Some conclusions, allowing to confirm the efficiency of seismic facies analysis at the reservoir properties distribution forecast, are drawn.

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A.V. Malshakov (Tyumen Branch of SurgutNIPIneft)
Petrophysical model of residual water saturation of the terrigenous rocks in the region of the reservoir – non-reservoir transition

The residual water saturation factor of terrigenous rocks in the region of the reservoir – non-reservoir transition is considered within the framework of bidisperse percolation model. The scaling function allowing uniformly to describe the relationship between the residual water saturation and the volume content of granulometric fractions and between filtration-capacitive properties of terrigenous rocks is obtained with  use of self-similar transformation of variables. The obtained results are compared with empirical data.

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V.L. Chirkov, I.N. Gorbunov, S.V. Shadrina, E.V. Nikolaeva, T.A. Korovina, E.P. Kropotova (Surgutneftegaz OAO)
Geochemical and thermogeodynamic criteria for prediction of Western Siberia basement oil and gas content

The prospects for oil and gas content of the pre-Jurassic rocks in Western Siberia are considered. The first detailed study of the material composition of the basement rocks to a depth of 500 m on the area of Rogozhnikovskoye and framing its license sites taking into account modern ideas about their formation is executed. The estimation of thermobarometric parameters and component composition of the gas-liquid inclusions in crystals, the analysis of carbon isotope composition in the oils and hydro-geological characteristics of the exposed rocks, re-interpretation of magnetic and gravimetric anomalies, isotopic study by the method of U-Pb zircon geochronology, palynological determinations and aerospace decoding are carried out. It is shown that the study area is composed of two macroblocks: metamorphic and sedimentary-volcanic ones. A description of each block is given. The conclusion is drawn that the studied area of the Earth’s crust is a tectonic collage of blocks, differing by petrological characteristics and structural-metamorphic evolution.

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V.V. Sudakova, A.V. Ivanchik, I.V. Kunitsyna (Tyumen Branch of SurgutNIPIneft)
Geologic structure of Predpatomsky trough according to seismic data

The results of seismic studies by 2D common-midpoint method on territory of Predpatomsky trough are discussed. It is shown that crests of thrust fault structures determinate by seismic works data are prospective for oil and gas.

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A.V. Ivanchik (Tyumen Branch of SurgutNIPIneft)
Identification and localization of promising deposits of vogulkinskaya strata by seismic data

An example of separation in the wavefield of reflections, associated with the deposits of vogulkinskaya strata, is given. As a result of work the vogulkinskaya strata distribution area has been geographically expanded and localized. This allowed, later on, to associate the prospects of oil and gas content in the investigated license area with structural-lithologic traps of the P reservoir.

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V.A. Pukharev (Tyumen Branch of SurgutNIPIneft)
The selection of promising objects in the Triassic sediments in the north-east of Western Siberia by seismic data

It is noted that a sufficiently deep occurrence of the Triassic sediments in the north-east of Western Siberia makes it problematic to study this promising interval by drilling. It is shown that by interpreting seismic data, one can identify potentially promising objects in these sediments.

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Drilling of chinks


K.N. Kharlamov, E.A. Usachev, A.S. Paryekha, I.N. Bikmulin (Tyumen Branch of SurgutNIPIneft)
Determination of deformation and strength properties of rocks by the example of YuS1 and YuS2 layers

The method of determination of strength and deformation characteristics at rock samples uniaxial compression test is considered. The calculated data on the optimum hole angle, mud density for conservation of its borehole stability condition are given.

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E.A. Usachev, K.N. Kharlamov, T.V. Grosheva (Tyumen Branch of SurgutNIPIneft)
Some aspects of the stability theory

Based on the analysis of various literary sources, the concept of stability is clarified. The classification of the reasons causing the decrease in stability by various signs is given and the main reason for borehole instability, independent on the influencing factors, - the rock relaxation, is determined.

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E.A. Usachev, T.V. Grosheva, R.Z. Bikmulin, I.Ya. Moskvin, I.V. Dyukov, A.O. Potorochin (Tyumen Branch of SurgutNIPIneft)
Effect of inhibiting additive on the change of the petrophysical properties of core material at the West-Vatlorskoye and North-Vatlorskoye fields

Based on the analysis of the results of executed laboratory tests the degree of influence of process fluids, applied in well construction cycle, on the permeability change of core material samples is assessed. To reduce skin factor it is suggested to introduce boron-silicate reagent in the composition of the solution.

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I.I. Ryabkov (Tyumen Branch of SurgutNIPIneft)
On results of on-line forecasting of the roof depth of the seam with abnormally high seam pressure at horizontal wells drilling

The problem of on-line forecasting of the roof of the seam with abnormally high seam pressure in the process of the borehole drilling is considered. The methods and techniques currently used by drilling enterprises are given. The capability of their use at drilling directional wells and wells with horizontal tailing-in is investigated. The results of an erroneous determination of the roof depth of the seam with abnormally high seam pressure during wells drilling are given. The basic methods for predicting the seam with abnormally high seam pressure while borehole drilling and the principle of binding to it are presented. The efficiency of the developed technique at the construction of horizontal wells on the seam with abnormally high seam pressure is shown.

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Working out and operation of oil deposits


A.V. Stepanov, S.N. Repetov (Tyumen Branch of SurgutNIPIneft)
Simulation of hydrocarbon multiphase diffusion of gas-and-oil deposit

A solution of the problem of a multicomponent two-phase diffusion using created 3D simulator, that will allow more accurately to set the initial and boundary conditions for further hydrodynamic simulation, is presented. Tests of algorithms by the example of model problems are given.

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Information technology


G.N. Sheshukova, K.N. Kharlamov, O.N. Podkorytov, A.R. Pak (Tyumen Branch of SurgutNIPIneft)
The basic functional capabilities of the bundled software of computer-aided wells construction design in Surgutneftegaz OAO

One of the stages of a systematic approach to the design and construction of wells is developing and implementation of the bundled software Computer-aided wells construction design in the fields of Surgutneftegaz OAO - PC ProjectDesign. PC ProjectDesign includes computational libraries for simulation of technological processes by the cycle of wells construction, determination of need for materials and equipment; database BD-Project; auxiliary objects: short engineering calculations, type solutions, a library, gateways, report templates. PC ProjectDesign will automate the work at all stages of design and realization of design solutions, consolidate specialists of structural units of Surgutneftegaz OAO (oil-and-gas production departments, drilling management, SurgutNIPIneft, drilling departments, drill teams) into a single information space, to provide initial and design data and factual information storage in a single database.

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News, events, the facts



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Geology and prospecting works


M.A. Grishchenko (TNNC LLC), V. German (PetroGeokhimService GmbH), V.E. Ponomarev (NOVATEK OAO)
The new technology of geochemical prospecting of hydrocarbon deposits in the lithological complexes of Yarudeyskiy swell of Western Siberia

The technology of passive adsorption of hydrocarbon of bottom soil air through the modules - sorbers allows to get geochemical maps of the forecasting hydrocarbon deposits distribution probabilities, which is a direct method of prospecting and exploration of oil and gas fields with high reliability (up to 90%) on the base of interpretation of the soil gases sampling data, which are the key to interpretation of the ascending gas emanations. Relatively simple and inexpensive technique is used in almost all oil and gas regions of the world to select the objects of exploration drilling and the optimal location of producing wells. The results of the geochemical work at Shuginskiy site of Yarudeyskaya area of Nadym region of Western Siberia are presented.

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D.A. Kozhevnikov, K.V. Kovalenko, N.E. Laazutina (Gubkin Russian State University of Oil and Gas), Z.N. Zhemzhurova, M.A. Safronov (Central Geophysical Expedition OAO)
Adaptive interpretation of geophysics and well logging data in geological modeling of oil and gas fields

Domestic and foreign digital geological modeling software are synthesized geophysics and well logging data but are not executed quantitative logging data interpretation. Special autonomous interpretation software based on correction techniques and empirical cross-plots is designed. Alternative adaptive interpretation allow to evaluate dynamic filtration-capacity properties of the reservoir directly in the geological modeling system. Interpretation algorithms based on petrophysical invariance principle implemented in the DV-SeisGeo system (Central Geophysical Expedition, Moscow) for geological modeling of the БВ6 and БВ8 reservoirs for one oilfield in the Western Siberia.

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Yu.V. Endalova, Е.S. Sharapova, N.N. Ivantsov (TNNC LLC)
Implementing the sequence stratigraphic approach in Russkoye field’s 3D geological model

It is marked that the Russkoye field has a very complex geology. It is presented that making correlation by conventional techniques is not possible due to high lateral variation of fluvial thicknesses. Methodic approaches to implementing sedimentation principles in geologic 3D model of Russkoye field are described based on sequence stratigraphic interpretation.

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Drilling of chinks


A.V. Staroshchuk, V.S. Semenyakin (Astrakhan State Technical University)
Reasons of ingress of brine, oil and gas during heavy mud drilling

An example of leak-off and rocks hydrofracturing pressure logging is given. The method of the leak-off pressure determination is considered. The curves of spontaneous down hole pressure changes during started ingress of brine, oil and gas are given.

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Working out and operation of oil deposits


R.R. Ibatullin, A.V. Nasybullin, O.V. Salimov (TatNIPIneft)
Evaluating feasibility of cap rock fracturing during cyclic steam stimulation at the Ashalchinskoye natural bitumen field

Maximum allowable steam injection pressures for CSS wells at the Ashalchinskoye field are validated. A simulation study has demonstrated, that wellhead pressures of around 1.5-1.7 MPa can not ensure cap rock fracturing and steam breakthrough to the surface, provided that minimal cap rock thickness is estimated at 4 m, and excellent lateral homogeneity is observed. Steam breakthrough may occur only through local weak zones, for example, in the vicinity of poorly cemented wells, as well as through small-sized regions of higher fissures.

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A.A. Erofeev, I.N. Ponomareva, V.A. Mordvinov (Perm State Technical University)
To definition of reservoir pressure at hydrodynamic researches of wells of the carbonate collector

Results of data processing of hydrodynamic researches of extracting wells by development of oil deposit in carbonate collectors of Rassvetnoe oil field are considered

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I.A. Guskova, A.T. Gabdrakhmanov (Almetjevsk State Petroleum Institute)
Assessment of EOR methods’ effect on oil properties

The paper describes the results of experimental studies of the enhanced oil recovery techniques effect on the oil properties. It has been shown that photocolorimetry can be used as the main method of research. The optimum wavelength for research has been defined by mathematical statistics method. It has been shown that photocolorimetry can effectively be used for prompt analysis of oil properties that change in response to well stimulation.

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Yu.A. Kashnikov, S.V. Gladyshev (Perm State Technical University), R.K. Ryazapov (Vostoksibneftegaz OJSC), A.A. Kontorovich, N.B. Krasilnikova (RN-KrasnoyarskNIPIneft LLC)
Hydrodynamical modeling of first-priority area in development of Yurubcheno-Tokhomskoye oilfield, with a glance of geomechanical effect of closing the fracture

There given the results of long-term tests of samples with fractures, in conditions of higher effective pressures. According to the results of tests and hydrodynamical researches of wells there was selected the geomechanical model, this model defines the changes of permeability in process when the reservoir pressure are decrease, in terms of Barton - Bandis fracture. In conclusion there given the results of hydrodynamical modeling of first-priority area in YT oilfield, with a glance of fracture.

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Yu.V. Shuljev, A.P. Ryazanov (Slavneft-Megionneftegaz OAO), S.B. Denisov, I.V. Evdokimov (VNIIneft OAO), S.E. Sutormin (VNIIneft-Western Siberia ZAO)
Improvement of the development of low-permeable reservoirs of complexly constructed objects by the example of Taylakovskoye field

It is noted that the problems of development of reservoirs of complexly constructed fields are stipulated by objective and subjective factors: the neglect of the geological structure and nonfulfilment of design solutions. It is shown that it is impossible at the design stage to take into account all set of factors affecting the efficiency of field development. The conclusion about the relevance of development analysis monitoring on the field model as a basis for the technological decision-making process is drawn.

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Memories of the outstanding oil industry worker



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The oil-field equipment


A.V. Lekomtsev, V.A. Mordvinov, M.S. Turbakov (Perm State Technical University)
Characteristics of the electrical submersible pumps ESP5-80 at action water cut well

Pump head characteristics ESP are constructed and analyzed according to pressure measurements of pump suction and well flow rate.

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Power economy


V.P. Frayshteter, A.S. Martjanov (Giprotyumenneftegaz OAO)
The choice of economically sound section of wires and cable conductors of power lines during the design

A computer program allowing to use any of the proposed methods for calculating economically sound sections of wires and cables is developed. It is noted that the accounting of real economic environment in the design of cable networks and overhead transmission lines increases the validity of accepted decisions and power efficiency of transportation of electricity in oil-field power lines.

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E.V. Titov (INGA OAO), T.V. Perinskiy (Innovation Power Engineering ZAO)
Analysis of automatic voltage control points operation in the scheme of power supply of well pumps and drilling rig

The modes of automatic voltage regulation points operation by the example of 6 (10) kV overhead transmission line before connection, at startup and in operating mode of the drilling rig have been analyzed. The corresponding graphs of the electrical load are given. It is shown that the application of automatic voltage regulation points generally provides acceptable voltage level as at the drilling rig, and at the substations feeding the submersible electric motors.

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Transport and oil preparation


А.V. Grishagin, Т.I. Kologreeva, О.V. Dryagina (SamaraNIPIneft LLC)
Design and Unification Features of Oil Filling-in Stations for the Oil Fields of the Volga-Urals Province and Western Siberia

The classification of oil filling-in stations (OFS) is provided. The authors consider the issues of OFS unification taking into account the location of the considered oil field objects (regional – Tomsk, Tyumen, Samara and local – Sukhodol, etc), as well as the other process factors (equipment set and scope including their capacity and throughput). The analysis of capital expenses requited to construct the OFS with various capacities is presented.

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N.S. Arbuzov (IMS Indusries Ltd.)
Protection of marine terminals against hydraulic shock phenomenons by the gravity flow in technological pipelines

A method of protection of marine terminals against the hydraulic shock phenomenon by the gravity flow in technological pipelines is examined. The method works stability if a maximum gravity flow rate is more then a loading flow rate. The Novorossiysk marine terminal is considered as an example of a gravity flow terminal system.

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