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Oil and Gas Exploration Methods and Application

  • Erscheinungsdatum: 17.02.2017
  • Verlag: American Geophysical Union
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Oil and Gas Exploration

Oil and Gas Exploration : Methods and Application presents a summary of new results related to oil and gas prospecting that are useful for theoreticians and practical professionals. The study of oil and gas complexes and intrusions occurring in sedimentary basins is crucial for identifying the location of oil and gas fields and for making accurate predictions on oil findings. Volume highlights include: Advanced geophysical techniques for achieving hydrocarbon exploration efficiency from beneath the Earth Discussion of theoretical and practical approaches in solving problems related to exploring and mining new oil and gas deposits New geological concepts for predicting potential hydrocarbon targets Novel methods of control of the outworking of these deposits using different geophysical methods, significant for optimization of mining hydrocarbon and carbonate deposits Estimation of the degree of outworking of oil and gas deposits, to facilitate the use of space - time monitoring of different kinds of fields Analysis of exploration data by an efficient processing system, based on strong methods proven mathematically
Oil and Gas Exploration is a valuable resource for exploration geophysicists, petroleum engineers, geoengineers, petrologists, mining engineers, and economic geologists, who will gain insights into exploring new methods involved in finding natural resources from our Earth. Sudip Misra, Indian Institute of Technology, Kharagpur, India Sumit Goswami, Defence Research and Development Organization, New Delhi, India

Produktinformationen

    Format: ePUB
    Kopierschutz: AdobeDRM
    Seitenzahl: 304
    Erscheinungsdatum: 17.02.2017
    Sprache: Englisch
    ISBN: 9781119227465
    Verlag: American Geophysical Union
    Größe: 63553 kBytes
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Oil and Gas Exploration

1
EXPERIENCE OF REGIONAL PREDICTION OF HYDROCARBON DEPOSITS PROSPECTING IN THE VICINITY OF URAL OIL AND GAS PROVINCES

Vladimir S. Druzhinin, Vjacheslav Osipov, and Nikolay Nachapkin

Institute of Geophysics Ural Branch of Russian Academy of Sciences (UB RAS), Ekaterinburg, Russia
Abstract

This chapter is devoted to investigating oil and gas content in the Ural region according to the position of the Earth's crust deep structure. A significant volume of deep seismic soundings was provided in the Ural region by the Bagenov geophysical expedition, by the Institute of Geophysics (Ural Branch of Russian Academy of sciences), and by the Center of Regional Geophysical Research (GEON) during some decades. We have elaborated a new technology of seismic geomapping, based on new model conceptions about the structure of the upper part of lithosphere. We supplement the base of seismic research by the geological data (information about the oil and gas content of the region), the data of super deep boreholes, and area gravimetric data. That allowed us to construct a geological-geophysical fault-block volume model of the lithosphere (up to 80km), to provide the tectonic mapping according to these cuts: the surface of ancient crystalloid crust and the main seismic geological surface M. On the basis of the obtained information compared with the data of hydrocarbon deposits location, new depth criteria of forecasting deposits in new regions and objects have been developed. We can assign some examples of positive forecasting. They are the Kueda region (south of Perm region) and the region of the town Khanti-Mansyisk.
1.1. Introduction

In the last decade, interest in the information of Earth's crust and upper mantle structure has steadily grown. That knowledge has become required for developing deep submerged sediments, which are the main source for refueling the world base of oil and gas of the 21st century, and for prospecting objects in new areas. Success of prospecting new fields of hydrocarbon (HC) deposits inside the territory of oil and gas areas of the Ural region is too low. One of the main reasons for this may be that the peculiarities of the deep structure chosen for detailed exploration are not usually taken into account. That situation is caused by the lack of sufficiently reliable data on the structure of the Earth's crust, as well as absence of criteria for the prediction of prospective areas. A simplified system of observation in deep seismic sounding oriented on the subhorizontal environment is in conflict with the complex block model of Earth's crust, established by using the dense continuous profiling systems and the results of deep drilling. First of all, we need to have information about the tectonic model of the upper lithosphere and also about the connection between the structural and tectonic elements of the sedimentary cover, including tectonics of crystalline crust and of deep fluid dynamic zones. That will determine the types of the Earth's crust as a generation source of hydrocarbons that contributes to their vertical migration into upper layers of the geological environment. The development of depth criteria that determine the formation of large hydrocarbon deposits was introduced in the 1960s. In the beginning it was realized in profile models, and then in area systems for constructing a geological-geophysical volume model of the Ural's upper lithosphere and scheme of tectonic districts of the crystal crust. Conclusions about the prospects (or nonprospects) of areas were confirmed by subsequent detailed prospecting operations. The need for such an approach at the stage of regional and regional-zonal forecast in this chapter is considered an example of research on oil and gas provinces of the Ural region.
1.1.1. Some Information About Oil-Gas-Reserves of Ural's Region and Their Geological Environment

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