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1st EAGE International Geosciences Conference on Kazakhstan
- Conference date: 15 Nov 2010 - 17 Nov 2010
- Location: Almaty, Kazakhstan
- ISBN: 978-90-73781-94-8
- Published: 15 November 2010
21 - 40 of 50 results
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Efficient Technology for Searching Oil and Gas
Authors I.F. Myasnikov, A.M. Ogurtscov and V.V. UginРассматривается новая технология поисков УВ, включающая геохимические методы поисков и дистанционную термометрию. Приводятся примеры решения задач на различных стадиях геологоразведочного процесса, от стадии региональных до разведочных работ. A new search technology, with geochemical methods of prospecting and remote thermometry is considered hydrocarbons. There are some examples of solving problems at different stages of the exploration process.
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Advances in Modeling of Passive Inflow Control Devices Help Optimizing Horizontal Well Completions
Authors A. Galimzyanov, L Ostrowski and E.B. UelkerTo evaluate performance and potential benefits of a PICD completion, a full-field simulation model is required. Simple near-wellbore simulators are often used to initially evaluate the applicability of the PICDbased completion. However, only full-field reservoir simulation can provide prediction for the completion/ reservoir performance and thus allow for a full evaluation of the economics and feasibility of the project. A multi-segment well model can be used to represent the PICDs in the horizontal well. The multi-segment well model is an advanced well modeling that allows accurate modeling of multi-phase flow and pressure variations in wells with a reservoir simulation model.
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The New Technology of Forecasting Mineral Deposits Based on Remote Sensing
Authors B.S. Zeilik and D.R. KadyrovAccording to remote sensing revealed impact large circular structures that accompany the concentric zones of tension and compression. The existence of the earth's crust concentric tension-softening and compression in cosmogenic explosive ring structures and in their framing is confirmed by long-term research carried out at the Semipalatinsk test site in explosions of nuclear weapons. A common feature of the results is firmly established cycle of alternating zones of compression and softening in the rock mass around points of explosions. Found that a zone stretching in the crust, accompanying cosmogenic ring structures, control the spatial distribution of the overwhelming mass of mineral deposits, as the hydrocarbon and solid mineral resources throughout the vast territory of Kazakhstan. Forecast promising areas to search for mineral deposits, based on identified patterns, supported by powerful statistical sampling, the result of years of geological exploration. The proposed new technology prediction of mineral deposits can extensive use of advanced space information for the full improvement of the search exploration for oil and gas in all sedimentary basins of the World, as well as search prospecting for solid minerals in all regions of the world.
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Innovative High Resolution View of the Prospects of Electrical Hydrocarbons in the Crystalline Basement
By V.V. ChernovOil and gas deposits can be found not only in a sedimentary formation, but also in a crystalline basement. Prospecting such reservoirs is the main perspective for increasing onshore oil and gas resources both in Russia and worldwide. Geoneftegaz Joint-Stock Company carried out exploration works in the Trans- Urals aimed at finding a deposit in a crystalline basement. The analysis of geoelectric parameters obtained on the basis of the high-resolution IP-prospecting data inversion showed that formations lying at bigdepths exceeding 2.5 km which correspond to igneous rock are most prospective in the Trans-Urals area. The greatest perspectives are geared to the island arc called, in Trans-Urals and North Kazakhstan, the Valeriyanovskaya suture which stretches through the Ural Mountains in the vicinity of the town of Pechora. The innovation is that of island arcs in the land of hydrocarbon still nobody acted in the world. The methods of electrical prospecting with high resolution allowed to see the prospects, but for the implementation of intelligence necessary cooperation of many specialists. We need help and we propose to draw attention to similar areas in northern Kazakhstan, where the work performed by specialists Kazakhstan Geology.
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Selective Hard Scale Removal from Perforation Tunnels
Authors R.M.M. Vegliante, P. Choudhary, A.M. Al Busaidy and Z. ZaoualiThis paper will describe the innovative methodology to apply dynamic under-balance to selectively remove hard scale from perforation tunnels. It has a number of advantages over traditional chemical or mechanical methods, namely a) Selectiveness b) It can be deployed by wire-line (no rig or CT. c) No production down time due to well shut-in. A wealth of objective measurements was made, including. 1. Three phase production logging measurements before and after the treatment. 2. Three phase surface measurement of produced fluid before and after the treatment. 3. High speed pressure gauge data, during dynamic under-balance event 4. Analysis of formation debris captured in the dynamic under-balance chamber. Wells Production histories give further insight into the effectiveness of the technique. The results exceeded expectations, with PI to the oil increasing up to 2.7 times and corresponding reduction (up to 50%) in WC. Samples retrieved from the dynamic under-balance chambers show to contain Barium and Strontium sulfite scale. The technique could herald a revolution in scale removal and showed to have unexpected potential in new and old wells improving (sometimes dramatically) perforation tunnel performances even where scale deposition doesn’t occur.
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The Use of Seismic Data Interpretation Systems in Technology of Gravimetrical Support of Seismic Survey in Caspian Basin
In RSE SGE a new method of 3D Gravimetrical modeling of salt layer in PreCaspian basin is developed. It is based on the gravity field interpretation involving seismic data. The use of such models in the process of interpretation of seismic sections allows obtaining more reliable data of salt layer structure. Converting data from gravimetrical system (SPOGM) formats to SEG-Y formats allows manipulating gravity survey data in a seismic data interpretation systems environment such as PETREL (Schlumberger), KINGDOM (SMT). As a result there is an increase of production and technological effectiveness of combined analyses of seismic and gravity surveys.
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The Prospects of Studying and Forecasting of Subcornice Oil Deposits in Eastern Board of the Pre-Caspian Depression
By N.G. DavydovThe basic maintenance The researches of the complex of geology-geological data were carried out under typical geological objects and in the aspect of studying of features of structurally-tectonical, lithology-facial allocation, parametres of PCP (physics-capacity properties), a quantitative estimation of revealed subcornice deposits and it’s forecasting on extensive territory of Eastern board of the Pre-Caspian depression(Figure 1). In these researches were used the materials of high-definition MOGT 2d/3D seismic, high-precision gravity prospecting, and other methodical methods and technologies. An unique geology-seismic data were recieved and proved with drilling work, which show the high efficiency of the practical solution of problems of revealing of subcornice deposits (Figure 2). The conclusions: As the result of researches was the creation of forecast map of a zone of arrangement of expected subcornice deposits, which frames the whole Eastern board of the Pre-Caspian depression (Figure 3) with a various stage of reliability of the further detailed elaboration. The geology-methodical, geophysical and drillings recommendation regarding to introduction in the total balance of hydrocarbons of huge territory of Pre-Caspian bassin are also provided.
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Dynamo Effect of the Earth and the Formation of Oil
Authors G.V. Tarasenko and G.V. TarasenkoSubduction regime formation of oil associated with the absorption of the oceanic crust into the mantle at a depth of more than 1000 km. At this depth, the temperature should not exceed 1000 С, at which organic matter preserved in rocks, will burn. But oil, on palynological analysis, the dispute remains and pollen (Medvedeva, Vinogradova, 1977) which burns at temperatures up to 600 C. Experiments to obtain oil, conducted at high temperatures (pyrolysis) does not result in a natural oil, but to obtain oil by electric discharge in a solution of water with soda ash had led to oil, coal and diamond chips. Here, obviously the process of cold nuclear fusion, which proves the occurrence of such processes in the crust. Further studies should confirm the CNS in the earth's crust.
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On the Application of Physical and Geological Modeling for the Interpretation of Geophysical Data
Authors A.N. Orekhov and L.Y. ErofeevAn approach of the authors and justified the creation of physical-geological models of ore objects. The example of adapting an existing model to the conditions of a particular object. The estimation of Setting up physical-geological models in the study of geophysical methods of ore deposits of different genesis.
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Kyzyl Gold Project - Renaissance of a Kazakhstan Gold Producer
By I. BlakleyAltynalmas Gold Ltd is an emerging Kazakh and Canadian gold company. Altynalmas’s main focus is on the Kyzyl Shear zone which includes the Bakyrchik and Bolshevik Gold deposits. The Kyzyl gold deposits consist of a series of mineralized lenses or lodes lying within a large shear zone, which is 11.5 km in length. Gold mineralization is hosted within sheared carbonaceous sediments of the fault zones, and is principally contained within sulphide mineralization occurring in association with quartz stockworks, which crosscuts and parallels the foliation of the sediments. Mineralogical studies indicate that the majority of the gold is encapsulated by arsenopyrite and, to a lesser extent, pyrite. The deposits are "double-refractory" in nature. Recent etallurgical testwork using fluidized bed roasting have resulted in recoveries between 86 to 90%. Altynalmas recently release a Pre-Feasibility Study and is currently undertaking a Feasibility Study. An initial 75,000 m diamond drill program will be completed in November 2010.
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Metasomatic zonation of large gold deposits in Kygyzstan
By N. PakРассматриваются крупные месторождения золота в Кыргызстане. Они характеризуются широким развитием различных метасоматических пород. Метасоматиты имеют многостадийное развитие и образуют последовательные ряды, которые выражаются в вертикальной и латеральной зональности. Приводятся характеристики золотой и пиритовой минерализации.
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New Experience of Radiowave Tomography Application for Prospecting Karst Cavities
By N. KuznetsovВ докладе рассматривается практический результат выделения карстовых областей в межскважинном пространстве по данным радиоволновых исследований межскважинного пространства на примере рудника Шаймерден. На представленном разрезе указаны преимущества использования метода: выделение контрастных по электрическим свойствам областей, а также решение общих структурных и морфологических задач.
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An Assesment of "Hydraulic Jump" in Hydrogeological Boreholes During The Pumping
Authors V. Salybekova and V.A. ZavaleyThe main purpose of study is to define the phenomenon of "hydraulic jump" level and determine what extent it affects the values during pumping from boreholes. Consideration the flow of water to boreholes and the "hydraulic jump" formation indicates that the phenomenon can cause significant error at calculation hydrogeological parameters in the boreholes during pumping. This work reflects the reasons for formation of "hydraulic jump" and the methods of its determination. Calculation of "hydraulic jump" level in wells producing real value in determining the filtration coefficient in the wells and reduces the error in determining it to 98%.
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Karachaganak 2009 3D Seismic Survey - A World Class Effort
Authors M.H. Eales, T. Daley, M. Morosini, M. Sharafudinova, T. Marples and K.S. LeeThe Pre‐Caspian Basin of western Kazakhstan is the location of several world class hydrocarbon fields, including the onshore Karachaganak Field. However its geological setting is very challenging for the seismic technique: deep carbonate platform targets beneath a complex overburden including diapiric and detached salt structures and high dips of intervening and subsalt strata. Furthermore, the abundant oilfield infrastructure generates a noisy environment for seismic acquisition and reduced access for Vibroseis trucks.
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Seismic Processes in Mining Regions - Case Studies for the Salt Deposits in Starobin (Belarus) and Provdja (Bulgaria)
Authors I.Z. Paskaleva and A. AronovSeismic processes in the regions of the Provadia and Soligorsk potassium salt deposits have shown three features: a) an identity of the recurrence curves of the seismic events of the energy range of 10E+6 ÷ 10E+10J; b) a quasi-periodic character of the seismicity activation in time against the general trend of seismicity activation increasing; c) the zones of epicenters of seismic events are larger than mining areas.In both deposits epicentral areas of seismic events overstep the limits of mine workings.
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Tectonosphere Model of the Southern Pribalkhashye Region, Kazakhstan, Along the Lines of Regional Seismic Profiles
Authors S.A. Istekova, R.A. Mussayev and A.A. BaydauletovaAn analysis of the velocity profiles combined with geological, magnetotelluric and gravimetric data were used to create model of tectonosphere of the Southern Pribalkhashye region. The structures formed on the ocean ( Shu-Ili, Kenterlau-Matayskaya and Irtysh-Zaisan zone) and continental crust (Precambrian complex of Aktau-Zhongarskogo terrane and Koyandinsko-Arkalyk block) were determined.
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Chimney Study as a Practical Tool in Hydrocarbon Exploration for Risky Prospects: A Case Study from Persian Gulf
Authors S. Sepahvand and H. RameshChimney detection is a technique which can be used as an exploration tool that provides important information for prospect evaluation and charged or non-charged prospects identification.The method applies multi trace seismic attributes, neural network modeling and the interpreter's insight.The approach shows how a fault can separate a reservoir in two parts with different hydrocarbon bearing behaviors.The results indicate in effect of fault sealing characteristic, The whole of reservoir horizons are not gas bearing and fault has divided it in two parts and acted as a seal and barrier between them
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Regional Assessment of Gross Depositional Environment for the Lower Cretaceous Play, North Caspian
Authors P.J. Lyon, K. Ruckwied, A. Droujinina and A. RoviraThe Berriasian – Hauterivian (Neocomian) sequence was deposited in an overall fluvio-marine environment. Significant paleo-relief existed at this time indicated by onlap of this unit onto partially eroded Jurassic carbonates. A lowstand period is identified in the Valanginian (Early Neocomian) which is associated with clear evidence of extensive channel development across much of the area. This interval is associated with distinct fining upward fluvial/estuarine channel sands recognized on log data and a corresponding increase in the proportion of non-marine palynomorphs identified in biostratigraphic samples. By the Late Barremian, most of the paleo-highs were submerged under a vast epeiric sea that extended across the region. Extensive shale units were deposited across the entire region. In the Aptian-Albian a large delta system prograded out into the presently offshore part of the North Caspian. Individual delta lobes can be tied and calibrated to log data which is characterized by classic coarsening upward para-sequences typically with high net/gross. A corresponding delta-top environment is recognized in the more proximal wells to the east with a distinctly higher proportion of non-marine palynomorphs consistent with a more proximal setting. Synchronous salt movement throughout the Early Cretaceous is observed on some of the salt diapirs within the Pri-Caspian Basin.
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New Insights on Hydrocarbon Plays in the Caspian Sea, Kazakhstan
Authors J.A. Martin Ltd and S.R. Toothill LtdNew exploration opportunities and improved imaging of already known prospects in the Caspian Sea, Kazakhstan are presented based on the acquisition, processing and interpretation of long-offset 2D seismic data acquired by CGGVeritas from 2006-2009. We have identified further examples of three already successful plays in the Caspian Sea and onshore, within open blocks in the North Caspian and North Ustyurt Basins and a fourth, relatively unknown play, in the North Ustyurt Basin. The already known plays include Devono-Carboniferous carbonate reefs and clastics, Triassic-Cretaceous post-salt clastics and carbonates in the North Caspian Basin and Jurassic- Cretaceous post-thrust clastics and carbonates in the North Ustyurt Basin. The fourth play that we have identified comprises thrust fault, anticlinal structures with Late Palaeozoic-Early Mesozoic clastic and carbonate reservoirs in the North Ustyurt Basin which, to our knowledge, has not been tested elsewhere in the region.
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The Main Results of Exploration Works on North Caspian
More LessThe main results of exploration works on North caspian.
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