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Geobaikal 2012 - 2nd EAGE International Research and Application Conference on Electromagnetic Research Methods and Integrated Geophysical Data Interpretation
- Conference date: 20 Aug 2012 - 24 Aug 2012
- Location: Irkutsk, Russia
- ISBN: 978-90-73834-31-6
- Published: 13 August 2012
43 results
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Test of a chisel boot in conditions UTM of a deposit
Authors Nikitenko V.Y., Ivanishin V.M., Siraev R.U. and Burmistrov I.A.The given report opens subject matter of test of a chisel boot at drilling section under обсадную a column 324, its expediency application in the long term and the received result. So the comparative analysis of drilling of a chink on a chisel boot and drilling роторным by way by means of rolling drill bit chisels in conditions of catastrophic absorption without an output technological liquids on a surface is resulted.
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More Productive Drilling, as a key technology of deep horizontal boreholes drilling in basal carbonate crevice, urubcheno-tohomskoe oil-gas-condensate pool
More LessBasal carbonate crevice and abnormally low pressure in the reservoir Yurubchensky provide a high rate complexity of boreholes drilling, and so it is important to find a technology solution that will allow oil horizontal borehole drilling under conditions close to the hydrodynamic equilibrium. More Productive Drilling (MPD) is the key to the development of stock-Yurubcheno Tokhomskoye field and the main issues of technology, equipment, drilling pilot highlighted in the report
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Optimization of complex geophysical studies of wells in carbonate oil and gas fields of the Siberian platform.
Authors Е.М. Danilova and D.G. NisamovThe logging suite for wells of carbonate oil and gas fields needs to be optimized and is now being actively updated. New methods, such as UBI, FMI are being actively tested in complex reservoirs of the Siberian platform.
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Oil and gas searching wells drilling in East Siberia – Efficiency and Problems
By L.S. LebedevNowadays high efficiency searching oil and gas wells using asynchronous motors with frequency converters as main drives. Conception drives high efficiency is consists of considerably reduce energy consumption and significant energy saving in compare with other type of drives. Frequency converters are using for regulation speed and torque of electric motors. As matter of fact, energy saving achieves by means of frequency converters using for pump drives. Flux control with encoders improves accuracy of regulating speed and torque rotor and drawworks motors. Malfunctions in the electrical equipment are inevitable factor and the main problem of unskilled operating personal is spending a lot of time for malfunction searching and fault clearing. Perspective solvation of problem spending a lot of time for malfunction searching is application of expert system.
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Technological features of drilling of horizontal wells with a difficult profile (on an example of Vankorsky NGKM, the North of Krasnoyarsk Krai
Authors Е. Patrushev and Y. Davydovdrilling optimization problems on 219.1mm (8 5/8”)section. Methods & theory of drilling 219.1mm section – longest and most difficult. Conventional BHA’s (motor steerable BHA) - most prevalent on Vankorskoe field. Common problem associated with given method weight on bit transfer. In the present report ways of achievement of the set commercial speed of Vankorsky field and the solution of problems arising thus are considered.
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Application new technological methods for struggle against absorption at drilling chinks In conditionsUTM and results of their tests
More LessThe given report shines problems connected with absorption technological liquids at drilling operational chinks within the limits of UTM on the top intervals and at drilling a horizontal trunk of a chink in productive horizon. In the report modern technological methods for struggle against absorption technological liquids applied are resulted for the first time at construction of chinks of Eastern Siberia, and in particular UTM. Have been offered and in the further are applied new corking structures, testsare lead of the equipment to drilling and simultaneous fastenings a trunk of a chink pipe for fastening, works on mobilization and the further test of the equipment for drilling chinks with operated pressure are conducted. The first chinks with a horizontal trunk on productive horizon 1000м are as of today drilled and in times the quantity lost on absorption technological liquids is reduced
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Ways of the decision of geology-technological problems at opening rifewcarbonate adjournment UTM
Authors R.U. Siraev, V.Y. Nikitenko and I.A. BurmistrovThe given report opens features of drilling of chinks on UTM, takes up questions and problems with which it was necessary to collide at drilling a chink and methods of their decision. Each interval on the is unique as at one and same problem, absorption technological liquids, requires different ways of the decision. The saved up experience at construction of operational chinks has allowed to lower in times time and expenses for construction of chinks. Tostudyfeaturesofcollectors, includingproductivehorizon
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Integrated interpretation of geophysical fields at making of physic-geological models of oil and gas deposits
By L. BaryshevOn the basis of the system approach main principles of integrated interpretation of geophysical fields are considered. Practical results of integrated interpretation wave and electromagnetic fields are shown on a modeling profile of the Kovyktinsky field
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On some techniques the forecasting of geological section from geophysical data in FGUNPGP IRKUTSKGEOfIZIKA
Authors V. Klykova, A. Paschevin and V. VasilievSchemes of techniques the forecasting of geological section from integrated interpretation of geophysical data in the conditions of the East Siberian are presented .
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Refinement of geologic model using different types of data
Authors O.Y. Zaitsev and E.V. SolokhaOver the last 50-60 years, geophysicists has been achieved an enormous amount of techniques and technologies for processing of geophysical fields, the continuous development of computer technology makes it possible to realize more and more new methods of analysis of information to process huge amounts of data, including the integration of geophysical fields. The main purpose of the application of various mathematical algorithms in the processing of geophysical data is to reduce the ambiguity of the geological interpretation of geophysical fields. Petrel software is designed to bring together specialists from different disciplines work and maximize the use of all available information in constructing a coherent three-dimensional geological model with access to the hydrodynamic calculations. Functionality Petrel allow the user interpret the seismic data and well data, build a structural model of the deposit, simulate petrophysical characteristics, uncertainty analysis to characterize the model, well designed and modeled hydrodynamic process. The purpose of this report, to show how we can extend the standard approach to geological modeling, using all available geological and geophysical information, including data and electrical potential field.
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Experience of seismic (CDP) and electromagnetic (TEM) joint data interpretation on the example of Kovykta gas condensate field
Authors I. Buddo, L. Baryshev, A. Pospeev, E. Murzina and Y. AgafonovThe paper shows results of joint interpretation of electromagnetic (TEM) and seismic (CDP) surveys in the study of the Kovykta gas condensate field. The most prospective reservoir at the investigated area is parfenovsky horizon. TEM curves inversion was performed while the depth of the reservoir and its thickness constrained from results of drilling and seismic survey. Defined geoelectric characteristics of horizon reflect the change of reservoir rock properties and type of fluid. Integration of geoelectric and dynamic parameters of the reservoir horizon can significantly improve the accuracy and reliability of prediction of hydrocarbons
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Integrated interpretation of archival geophysical data of structural constructions Zee-Bureya depression
Authors A. Ruzhnikova and S. GachenkoThe report presents an integrated interpretation of archival survey of the gravitational field, the conductivity of the section by the method of telluric currents and drilling data. On the basis of correlation analysis to plot, according to which the predicted depth of the foundation, ekaterinoslav and itikutskay suites.
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Experience of seismic and electromagnetic data joint interpretation for Oil and Gas exploration in the south-east Asia
Authors I.V. Buddo, I.V. Egorov and Y.A. AgafonovThe paper shows results of joint interpretation of electroprospecting (TEM and EM-IP), seismic and Synthetic Aperture Radar (SAR) in the study of sediments in the south-east Asia. Conclusions are made about the efficiency of applied techniques, their optimal combination for hydrocarbon exploration was proposed.
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2D resistivity imaging for mining survey
More LessCase stories with different ERT units for ore deposits investigations
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The integration of the statistical approach and three-dimensional modeling for data processing and interpretation of EM soundings data (method of electromagnetic sounding and induced polarization (EMSIP), aero-electromagnetic prospecting
Authors Yu.A. Davidenko, A.Yu. Davidenko, M.G. Persova, A.A. Trusov and P.A. PopkovRobust regression analysis result of areal EM soundings data allows to localize geoelectric inhomogeneities in the context of 3D EM inversion problem.
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The new electromagnetic technology for exploration of complex ores and gold
By V. StogniyInduced polarization (IP) surveys have been utilized in the practice of mineral exploration for base metals and gold since the 1960s and have led to a number of important discoveries. However, the classical technology of IP measurements has never been truly efficient because of noise from electromagnetic relaxation (transient process). We have designed a new technology, including acquisition instruments and processing software, to measure responses of a polarizing earth with a differential current line which virtually cancels the relaxation component. Once the relaxation component has been cancelled, there remain only the “pure” IP signals to measures, which become very high, and the exploration work thus becomes tens of times more productive. The basic idea of the new sounding method consists in the use of two transmitters (grounded lines) oriented in opposite directions. In terms of physics, the idea is to cancel (subtract) the relaxation component (transient process) of the electromagnetic field and to add the polarization component using pulses of different directions. The new technology is a workable exploration tool for complex ores and gold associated with sulfide mineralization in quartz.
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Electrical resistivity tomography method application for groundwater survey in Novosibirsk Region
Authors A.N. Fague, V.S. Kuskovskiy, I.N. Yeltsov and A.A. VlasovDespite its relatively low cost near-surface surveys allow for substantial benefit to national economy. In particular, the quickly developing method of electrical resistivity tomography (ERT) finds its way in construction, engineering surveys, archeology and many other domains. A very important but still not very well studied field of ERT method application is hydrogeology. In particular, the problem of aquifers localization is well-suited for ERT surveys as a way to solve it. Fresh water is a valuable resource which can become rare in near future. In some countries its value can already be compared to oil. The problem of finding fresh water sources is old and at first impression -well managed. However with modern technologies we can do even better. This article covers results of efforts aimed to find aquifers by means of ERT surveys. During our surveys we used SKALA-48 and IRIS Syscal Switch Pro devices. Despite these surveys being relatively juvenile at IPGG SB RAS there are already some interesting results which allow make preliminary conclusions on ways and prospects of further development of ERT methods in aquifers exploration.
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Key features of electromagnetic exploration with galvanic and inductive types of templates
Authors I. Egorov, O. Tokareva, V. Gomulsky and Y. AgafonovThe question of choosing the most effective and relatively cost-low electrical geophysical methods for hydrocarbons exploration is relevant. This fact is due to a variety of observation methods in EM industry, on the other side because of seismic limitations in poor-recorded areas. To evaluate the effectiveness of electromagnetic methods with different types of transmitting and receiving systems the comparison of TEM technique (near-zone survey with inductive type of templates) and DNME technique (differential normalized method with galvanic system) are considered in the paper. Through a one-dimensional mathematical modeling of electromagnetic signals for said types of templates the sensitivity to changes in polarization parameters was estimated. The theoretical and methodological aspects of TEM and DNME methods are performed. The layers resolution by different current transmitting systems was discussed. According to results for more reliable prediction of oil and gas fields the joint application of galvanic and inductive systems was recommenced
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TEM method capabilities for hydromineral material exploration in East Siberia
More LessThe paper shows features of study fields of multicomponent concentrated brines in the southern Siberian platform. Application of TEM with high accuracy to provide in the sedimentary cover of thin conductive layers, which are associated with the manifestation of brine. Integration of geophysical and geological methods is an urgent task allocation and delineation of deposits of industrial brines.
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Research of an opportunity of HC stratigraphical traps forecasting by DNME method in high conductive medium
Authors Victor Vladimirov and M. PopovaResults of 3D modelling which one illustrate principal opportunities of a differential- normalized method of electrical prospecting (DNME) on forecasting reservoirs of hydrocarbons in not anticlinal traps in conditions a high conductive medium, characteristic for one of the areas of Caspian sea are demonstrated. As a basis for constructing physical-geological model were used a geological section constructed according to seismic survey, electric logging and the data received as a result 1D of inversion of field curves DU, Ps, P1 and Dφ. The opportunity of recovery of referent model simulating presence in a section of HC reservoir, in arguments of model Cole-Cole was investigated at conducting 1D inversion. The received results testify to high selfdescriptiveness of polarizing arguments used in IP methods at conducting of search works on oil and gas.
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Effectiveness of monitoring by the Transient Electromagnetic method for prediction of Oil migration during production
Authors Pervushina S.A., Gomulskii V.V and Egorov I.V.The paper shows results of onshore electromagnetic studies (TEM) for hydrocarbon exploration in the south-east Asia. Reflects the possibility of investigation by TEM structural forms in the sediments of Eocene age, characterized by high value of conductivity. A feature of this work is that the study of the structure of sediments by TEM was performed in the lack of a priori information (absence of results of drilling due to low degree of area exploration maturity), as well as poor quality of seismic data.
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Structural features of sediments from Electromagnetic data in the south-east Asia
Authors I.V. Buddo, I.V. Egorov and Y.A. AgafonovThe paper shows results of onshore electromagnetic studies (TEM) for hydrocarbon exploration in the south-east Asia. Reflects the possibility of investigation by TEM structural forms in the sediments of Eocene age, characterized by high value of conductivity. A feature of this work is that the study of the structure of sediments by TEM was performed in the lack of a priori information (absence of results of drilling due to low degree of area exploration maturity), as well as poor quality of seismic data
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Origin of enigmatic Patom crater (East Siberia) by new geophysical and geological data
Authors Andrey Saviсhev, E. Ermolin and A. IngerovPatom Crater is the modern (ca 500 years old) volcano-like geological edifice comprised of Proterozoic limestone lumps and situated in southern folded rim of Siberian platform. From its discovery in 1949, the crater’s origin remains unclear. Impact factor, volcanic and cryogenic models were proposed. As result of present investigations the geological interpretation of magnetotelluric soundings along 5 km profile across of the Patom crater has been performed. The Patom tectonic zone with the mark of Devonian fluid-metasomatic process has been discovered. The zone breaks the layers of carbonaceous shale of sedimentary host rocks. Absence of records of relatively young and considerable geological processes, as well as other geophysical and geochemical data, leading us to the suggestion about the cryogenic model of the Patom Crater origin, like unusual hydrolaccolith
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Prospecting and exploration aspects of reef structures of the Melekessky basin Upper Devonian sediments of the Volga-Ural PNC as an example Novobesovskoye area of Ulyanovsk region
Authors I.Y. Bogatireva, K. Budkin and B.I. YablonovskiyNovobesovskoe field is located in the southeastern part of Melekessky basin and is belong to the axial zone of intraformational Ust-Cheremshansk deflection of the Kama-Kinel system of deflections. Reef generation is less developed and localized in certain areas in depressed parts of KKSP. Precision 3D seismic surveys and a set of geological and geophysical studies, have revealed the organogenic structure in the carbonate sediments of the upper Devonian deposits at Novobesovskoe area. Example of reef generation in the axial zone of Ust Cheremshansk deflection may not be unique and is a prerequisite for further study of this area.
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Geomorphology analysis of Kertasari, Brebes district, central Java province; and its application for settlement land use
By S. ParamithaResearch in Kertasari Area, Brebes District, Central Java Province, is expected to generate recommendation map for settlement land use. Kertasari has varied morphology, but land use in this area is not good enough. Data was collected in the field is used to make geological map and geomorphological map. Then, digital data were analyzed to generate slope map, land wetness map, and land cover map. Research area was classified into four lithological units, they are sandstone-siltstone unit, volcanic breccia unit, claystone unit, and alluvial unit. And it was divided into four geomorphological units, they are Pamedaran Synclinal Valley Unit, Pamedaran Synclinal Hills Unit, Kertasari Denudasional Plain Unit, and Kertasari Alluvial Plain Unit. Slope percentage in research area ranged from 0% to 140%. Wetness rate of research area are: flow zone, seep zone, wet zone, moist zone, dry zone. Land cover rate of research area are: tightly covered zone, moderately covered zone, rarely covered zone, bare land. Overlapping these five maps using GIS software generates recommendation map for settlement land use. It divides research area into four zones: very feasible zone, feasible zone, less feasible zone, and not feasible zone. It is recommended to build settlements in feasible and very feasible zone.
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Comparison of resolution of various types of electromagnetic soundings
More LessDifferent types of electromagnetic soundings are characterized by different investigation depth, productivity and resolution. For estimation of their resolution capability the curves of residual functions are used. Model calculation are shown that transient EM soundings (used near-field zone) posses the maximal accuracy of 1D geoelectric sections parameters assessment. Slightly worse are MT soundings. Resistivity soundings with symmetric offset are adequate for investigation only of over-shielded sections. As for differentially normalized parameters, they are relatively cruder instrument of resistivity evaluation. Even in the class of polarized strata simple EM curves, calculated with geometry and current normalization are sufficiently better resolved in comparison with DN-parameters.
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Analysis and conception of oil -drilling development of Eastern Siberia (Urubcheno-Tokhomskoe oil field)
Authors V.M. Ivanishin, Siraev R.U. and A.G. VahromeevDeep cluster development drilling problem analysis has been carried out on the base of one of the most challenging oil fields of Eastern Siberia urubcheno-tohomskoe oil-gas-condensate pool, the development of which started in 2010. Based on the technologic experience of the world-known drilling and service companies we are searching for reasonable technic and organizational decisions; and the search has given the first good results. Having presented drilling cycle economic effect analysis, we’ve provided rationalization for the drilling concept based on the innovative technological platform. I.F. «Rossneft Drilling Company» extensively implements new technologies and organizational methods
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The anisotropic characteristics of the section on the electromagnetic sounding data for the study of geological structure and objectives of the monitoring of seismotectonic processes
Authors A.E. Shalaginov and N.N. NevedrovaThe main purpose of the paper is the identification and analysis of the anisotropic characteristics of the geoelectric section in the area of research in the village Mukhor-Tarkhan. The choice of the anisotropic model is justified a priori extensive geological, hydrogeological and geophysical information about the structure of the site. Found that the temporal variations of the coefficient of anisotropy, resulting from interpreting geoelectric data, characterize the ongoing aftershock process and can be used for problems of electromagnetic monitoring of seismotectonic processes
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Electromagnetic study on the North-East of area near lake Baikal
More LessPredpatomskij regional deflection is an area adjacent to a hard block platform and skladchatogo belts. Within the trough made modern integrated geophysical researches. Discusses the choice of the nature of the tectonic stress North-East Of. Likely that the dynamic load on the Earth's crust, having an offending nature, led within a sloping trough Predpatomskogo razlomnyh zones parallel to the contour of the mountain borders, and direct contact with the sediment deposits proterozojskih sedimentary cover platform runs on sloping grabenu
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The structure and monitoring in the south-western part of the Chuya basin using vertical electrical sounding survey
Authors P.V. Ponomarev and N.N. NevedrovaThe aim of this study is to determine the structure of the site in the area of the Chuya earthquake main fault, as well as analysis of variance and the electrical conductivity anisotropy for assessment of the geological processes of consolidation of the rock mass after a strong seismic impact.
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The seismic-gravity transect of Earth's crust beneath the Siberian platform and Central Mongolia and its geological implication
Authors V.V. Mordvinova, E.Kh. Turutanov and V.G. BelichenkoLow-velocity layers in the Earth’s crust, related to large-scale thrusts corresponding to the suture zones, can be as the sign of perspective of this territory on the deposits of minerals and recommendation to more detailed researches
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The results of 3D modeling of MT-data in the south-western part of Siberian platform
Authors E.D. Aleksanova, V.P. Bubnov, R.V. Zaltsman and A.G. YakovlevThe results of 3D modeling of magnetotelluric data are shown. The modeling was performed to determine the possibilities of imaging of high-conductive crustal zones in the south-western part of Siberian platform
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Deep geometry of bazit intrusions and seicmic danger in the Priolkhonye (the Baikal mountain area)
Authors E.Kh. Turutanov and A.V. StepanenkoIt has been found that large density inhomogeneities in the basite crust of the Baikal mountain system whose shape and size were determined from the gravimetric data interpretation are of minimal seismic activity as compared to granitized blocks.
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dy along Lopatka – Khailino line (Kamchatka Region)
Authors E.D. Aleksanova, A.E. Korobeynikov, A.G. Nurmukhamedov and A.G. YakovlevThe regional-scale magnetotelluric observations were carried out along «Lopatka–Khailino» line in 2007 – 2010. This profile goes from South to North along Kamchatka peninsula. Collected data is to be combined with MT stations, acquired in previous years along a series of profiles, crossing Kamchatka peninsula from West to East. The results of MT-data interpretation are shown. Besides that, in the framework of this project MT observations were repeated within a part of «Korf – Verkhnee Pengino» line (original data was collected in 2004) to study the effect of a strong earthquake, which occurred in this area in 2005. As a result of repeated measurements, the unique MT dataset is acquired, which allows to study the changes in resisitivity structure caused by the earthquake.
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Paleogeomorfologicheskie and fault-tectonic criteria for determining the types of traps for remote sites and geophysical studies
Authors A. A. Dragunov, Shaikhutdinov R.S., R.S. Mukhamadiev, Gainetdinov R. and Rakhimov R.L.In the study of structure and spatial distribution of complex traps of oil it is necessary to carry out geological and statistical analysis of quantitative reservoir heterogeneity and their relationships
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Testing TEM system using a large horizontal loop conductor
More LessThe adequate testing of a TEM system has to involve measurements in field with large transmitter and receiver loops and an artificial conductor with controlled transient response. As such a conductor it is convenient to use a large horizontal wire loop terminated to a resistor. The merits of a large loop conductor are the ease of placing out on the ground and the possibility of calculating its transient response. To assess the limitations of a loop conductor as a source of testing TEM signals, the effect of eddy currents in the ground on the transient response of a loop conductor was investigated. This investigation implies that the more resistive is the ground, and/or the smaller are the transmitter and receiver loops, the less the measured transient response differs from the intrinsic response of a loop conductor. Both field measurements and numerical experiments support the validity of using a large loop conductor for testing a full-sized TEM system.
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On Approach for Solving Three Dimensional Forward and Inverse Induced Polarization Problems
Authors M.G. Persova, Yu.G. Soloveichik, D.V. Vagin, P.A. Domnikov, M.G. Tokareva and G.M. TrigubovichDescriptions of approaches for 3D induced polarization modeling, algorithms of 3D inversion and their illustration through synthetic data examples are presented
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A complex for shallow water resitivity and IP surway
More LessA complex is presented for shallow water resistivity and IP surway. It uses original array for 16 channels resistivitymeter
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On implementation of noise-like signals in time-domain EM imaging
Authors D.A. Alekseev, B.S. Svetov and A.G. YakovlevThe study concerns the implementation of noise-like (pseudorandom) current signals for primary EM field excitation in time-domain EM imaging. We show that this approach yields better noise cancellation compared to the conventional stacking technique (provided that transmitters’ power and recording time are equal to those in stacking mode). Some results of recovery of the EM impulse response from measured timeseries data based on various processing schemes are demonstrated.
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Universal EM-data processing system based on customizable filtering scheme using the external libraries of digital filters
By M. SharlovThe paper presents the advantages of a digital data processing system based on the formation of scheme of filtering from the set of digital filters (built-in or connected from the external libraries). This system allows creating an optimal scheme of multi-stage filtering of EM-data taking into account the actual interference level and nature of noise.
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Solution of Scientific and Industrial Electrical Prospecting Problems on Distributed Computational Systems
Authors M.G. Persova, Yu.G. Soloveichik, D.V. Vagin, P.A. Domnikov and M.G. TokarevaDescription of the platform "Web-oriented research and industrial center for solving scientific and practical geological prospecting problems by electromagnetic methods" is presented
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Peculiarities of 3D-Modelling for Marine Electromagnetics
Authors M.G. Persova, Yu.G. Soloveichik, D.V. Vagin, P.A. Domnikov and M.G. TokarevaDescription of 3D-modeling methods for marine electromagnetics with underwater topography taking into account is presented
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Multilevel control system for evaluation of transient electromagnetic responses quality and reliability
Authors R. Guseinov, Y. Agafonov, I. Buddo, M. Sharlov and S. KompanietsMultilevel control system for evaluation of transient electromagnetic responses quality and reliability
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