TNNC Ltd.

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TNNC Ltd.

Russia
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Vorobyev V.S.,LLC TNNC
74th European Association of Geoscientists and Engineers Conference and Exhibition 2012 Incorporating SPE EUROPEC 2012: Responsibly Securing Natural Resources | Year: 2012

The Leno-Tungusky petroleum province (Eastern Siberia) has one of the most complex geological structures. An important factor is the process of secondary alteration of reservoir rocks in this area. Recrystallization, claying, carbonatization, sulphatization, and salinization of pore space greatly reduce the quality of reservoir properties, often turning the rock into a non-reservoir category. In such geological conditions, the accuracy of three-dimensional model is of paramount importance. The methodology for three-dimensional geological modeling based on well log data was developed. It is shown that this approach improves the accuracy of the forecast distribution reservoirs compared to the standard method.


Lebedev M.V.,TNNC Ltd.
Geomodel 2012 - 14th Scientific-Practical Conference on the Problems of Integrated Interpretation of Geological and Geophysical Data During Geological Modeling of Hydrocarbons' Deposits | Year: 2012

Abstract :New definition of walter's law.New definition of Walter's law.


Belousov S.L.,TNNC Ltd.
Geomodel 2015 - 17th Scientific-Practical Conference on Oil and Gas Geological Exploration and Development | Year: 2015

A brief description of the geological structure of Frolovskaya suite and its analogues is given, as well as its position in the cross-section, lithological description, wave-based division, and depositional environments. Well materials and 3D seismic data interpretation were used to study the entire cross-section of Frolovskaya suite to identify the areas of potential net reservoirs. The learning is based on the upper part of the suite, AK1-3 reservoirs, with proved net reservoirs presence and their oil and gas potential. As a result of the work performed, it was identified that Frolovskaya suite can potentially contain other promising oil targets. Such targets may occur above horizon B in the zone of 60-40 ms (about 100-60 m) and under reservoirs AK1-3, 45-65m below the bottom. There is also a possibility of presence of lenticular oil bodies in the clinoform part of the suite.


Nikitin Y.I.,TNNC Ltd | Akhtyamova I.R.,TNNC Ltd
Geomodel 2015 - 17th Scientific-Practical Conference on Oil and Gas Geological Exploration and Development | Year: 2015

In 2012-2013 existing of many Upper Frasnian isolated reefs have been confirmed by 3D seismic survey (704 square km), which were earlier predicted in the Rubezhin Trough around southern part of the Orenburg Oblast. Seismic images of mapped reefs are analogues to images of two reefs, which control of the Rybkin oil field. Mapped reefs are new exploration play fairway for oil in old oil-producing Orenburg region.


Kornikov R.O.,TNNC Ltd | Grischenko M.A.,TNNC Ltd
Geomodel 2015 - 17th Scientific-Practical Conference on Oil and Gas Geological Exploration and Development | Year: 2015

The first stage is the evaluation of the degree of knowledge, the quality, and applicability of the original data in order to identify the most significant geological uncertainties, and generate the studies program and a response plan for addressing the challenges and eliminating the uncertainties. The second stage is based on the response plan in the first iteration, with the uncertainty analysis of the first iteration, new drilling data, evaluation of the error rate in new wells, and evaluation and adjustment of the geological model based on the results of history matching of the flow simulation model within the first iteration. The advantages of this approach versus the standard method involve the operational account of new data and creating a list of recommendations for additional exploration at an early stage of model building. At the initial stage, the understanding of the degree of knowledge, challenges, time and labor costs required for the construction of the geological model reflecting the geological environment of the simulated target are formed. The report describes a case study of Garshinskoye field, where this work was carried out, it focuses on further planning of work based on the iterative approach; also, it describes the identified challenges and approaches to address them. A studies program was generated and executed which helped to solve a number of challenges, and significantly improve the knowledge level of Garshinskoye and the neighboring fields. The iterative approach allowed to adjust the drilling program and to save money for the company at an early stage of modeling. The report describes the procedure in more detail.


Lukyanov E.A.,TNNC Ltd
Geomodel 2015 - 17th Scientific-Practical Conference on Oil and Gas Geological Exploration and Development | Year: 2015

The main purpose of the work is to explore the possibilities of rapid modeling of geophysical parameters and their distribution, net-reservoir identification and finding zones with best reservoir properties to drill new wells. In this paper, the geological model is built according to the following scheme: continuous fields of gamma ray index (gamma ray and neutron logs) and a field of wave interval transit time are modeled, and then based on the accepted petrophysical model, the fields are converted into volumes of lithological differences, porosity, and permeability. The porosity parameters volume was built using the lithofacies distribution and the probability distribution. Net-reservoir and non-reservoir were separated based on the cut-off value-Poro = 4.5% determined by the core data. Tight clay and carbonate rocks and clayey varieties belong to non-reservoir type. The main reservoirs for fluids are limestones and dolomites. The average porosity value of the reservoirs was 8.0%. According to the analysis of porosity distribution, the porous-cavern reservoir type is most widely spread in the northern part of the field and facially refers to limestones and dolomitic limestones. Fracture porosity is most developed in the southern part of the field near the regional tectonic fault and is most likely of a tectonic origin.


Elisheva O.V.,TNNC Ltd. | Mikhailov A.A.,TNNC Ltd.
Geomodel 2015 - 17th Scientific-Practical Conference on Oil and Gas Geological Exploration and Development | Year: 2015

To discover the pre-conditions for oil-bearing capability of the Pre-Jurassic formation complex in the southern region of Central Uvat, the seismic correlation of Pre-Jurassic formations and the analysis of lateral distribution of the dynamic attribute RMS Reflector A+50 were performed. Based on the results of the works, suggested fracturing zones were detected, which are associated with the areas of prospective oil deposits in the Pre-Jurassic formation complex on the territory under study.


Vorobyev V.S.,TNNC Ltd.
GEOBAIKAL 2014 - 3rd International Geobaikal Conference 2014: Exploration and Field Development in East Siberia | Year: 2014

Hydrocarbon accumulations in the basement rocks found in the North American (U.S., Mexico), South American (Colombia, Brazil, Venezuela), the African-Arabian (Libya, Morocco, Egypt), East European (Yugoslavia, Hungary, Ukraine, Austria ), South China (China), Indochina (Vietnam) platforms, the West Siberian (Russia) and the Western European plate (Spain, Italy, England, Scotland). In spite of considerable interest to geologists, the Siberian platform was not associated with hydrocarbon reserves in its basement. In the present study provides information about the rocks forming the foundation , given their geophysical and petrophysical characteristics , the processes of formation of secondary porosity . The results can be used to predict reservoir zones within other fields and to create the correct geological and hydrodynamic models.


Ivanyuk V.V.,TNNC Ltd.
GEOBAIKAL 2014 - 3rd International Geobaikal Conference 2014: Exploration and Field Development in East Siberia | Year: 2014

In the period of 2008-2011, 3D CDP seismic surveys were conducted on Verkhnechonskoye Field. Survey area-1,508 km2, fold-100. As a result, a high-quality seismic volume with retained amplitudes, high vertical and lateral resolution of the seismic record, and with a high signal-to-noise ratio was generated. The report presents some results of a study of the Verkhnechonskoe Field geological structure according to a comprehensive interpretation of modern 3D seismic, core description, and logging analysis. Some of the structural elements were separated on a qualitatively new level, and a better understanding of the geological structure and history of the study area was formed. Ring anomalies at the basement top were studied. The material composition of the ring structure area and the areas outside its boundaries was studied. Conclusions about the metamorphic nature of this geological formation were made. The features in the seismic field of intrusive bodies and anomalies in the structure of salt intervals of the cross-section were described.


Nemirovich T.G.,TNNC LLC | Vilesov A.P.,TNNC LLC
Neftyanoe Khozyaistvo - Oil Industry | Year: 2012

This paper considers the traditional criteria for selecting the reservoir analogues (Orenburg Region Dkt reservoirs case study). When sedimentology is applied as part of the criteria, this makes the selected analogues more reliable and robust and results in genuine analogy, which will ensure optimal solutions for field development and reservoir management planning.

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