Tag Archives: месторождение
This research is relevant as the development of world energy over the past decades is characterized by increased production and consumption of natural gas. One of the leading gas producing countries is Russia, which accounts for more than 25% of the world’s total gas production. In the Energy Program of the Russian Federation, by 2020, the planned volume of gas production will be 700 billion m3. The development strategy of the gas industry provides for the extraction of residual geological reserves. All these aspects are pushed to create new and effective technologies for gas preparation, as well as modernization of existing technological processes and equipment for gas preparation.
Every year, the role of gas in the global fuel and energy balance is becoming increasingly important. Thus, in 2002, global production amounted to approximately 2.800 billion m3. Of these, only 522 billion cubic meters of gas were produced by Russia’s Gazprom. The growth of gas production in Russia by 2005 was about 5%.
The state of the oil and gas industry is characterized by low automation, the use of obsolete and worn-out equipment, a decrease in gas production in exploited deposits, an ever-increasing remoteness of developing deposits, and so on. In conditions of increased competition from foreign producers, modernization of gas engineering and increasing the efficiency of gas production are vital for ensuring energy security and stable economic development of the country.
The article discusses the problem of exploitation of gas fields, at a late stage of development. The operation is complicated, because of the accumulation of condensation and formation water, a limited number of technological processes are used, as a result of which the productivity of the wells decreases or irreversible gas losses occur during process blowdowns.
The last decade remains urgent a problem of processing of the associated petroleum gas (APG) at the domestic oil-extracting enterprises, including in regions with severe Arctic climate. APG is the integral element in the course of oil production.
For the last decade Russia came to a leading place in the world by the number of combustion of APG in oil-field torches. It happens, generally because of an unprofitable economic position as the price of the APG realized for further processing in the form of fuel or energy is low.
On the structure and APG properties does not concede to natural gas and has wider scope of application. With light crude usually extract more fat gases, with heavy naphtha – generally residue gases. The value of gas increases with increase in content of hydrocarbons in its structure. At division of casing-head gas ethane and other narrow fractions useful to the industry receive such products as the residue stripped gas (RSG), the long distillate of light hydrocarbons (LDLH), gas engine fuel, stable natural gasoline, the liquefied petroleum gas (LPG). Also helium, nitrogen, sulfur compounds can be emitted.
For efficient realization of actions for processing of APG it is offered to introduce a disposal system and rational use of associated petroleum gas which can be applied at working off of oil fields in extreme climatic conditions to increase in effectiveness of operation of fields due to the most complete utilization and use of associated petroleum gas.
Effective and rational use of hydrocarbonic resources, as well as introduction of innovative technologies, considerably will strengthen and will raise oil and gas-oil branch of Russia on new level.
FEATURES OF THE DEVELOPMENT CARBONITESETUPLITE BASIN IN LATE DEVONIAN – EARLY CARBONIFEROUS IN THE NORTH-WEST OF THE BASHKIR ARCH
The article analyzes the development of sedimentation in a rather narrow interval of geological time: middle Devonian (397 mA) to early Carboniferous (345 million years old) on a large area of the North-Western periphery of the Bashkir arch. It is shown that the Paleozoic deposits of this time are developed in all areas of the Russian plate and the Volga-Ural oil and gas province. However, the distribution of oil and gas is highly differentiated in space. The authors try to find out the specifics of sedimentation and possible conditions of hydrocarbon generation. Oscillations of the world ocean along the Eastern margin of the Russian plate have an obligation paragenetically tectonic movement. The centre of sedimentation was the axial zone of the Kama-Kinel system of troughs located over areas of active rifting. This created the conditions for uncompensated sedimentation in privacywomen the deflection and the formation of reef-forming structures along the sides of the depression. Some of them became oil-rich, others are not. In the future it is necessary to investigate this problem. It is also shown that dislocation in the form of arches, grabens, depressions, depressions, areas of tremendously was Central to the formation of sedimentary basins in the region and petroleum potential of the section. Uncompensated narrow troughs of the Kamsko-Kinel system was formed in juristische tectonic phase during the tension and compression of the earth’s crust. The Central part of the troughs made of half-deep-water clay-siliceous-carbonate sediments “domanic type”. Bioherm structures and reef massifs of the Frasnian-tournaisian time frame deflections in the form of barrier reefs. Geophysical interpretation of time sections through them is not always effective. The program “the reproduction of mineral resources” requires a comprehensive study of complex objects and differentiation of carbonate reservoirs to solve the stabilization of oil and gas complex development of the Volga-Ural oil and gas province.
EXPERIENCE IN THE USE OF DOWNHOLE DEMULSIFICATION TO IMPROVE OPERATIONAL EFFICIENCY OF THE ESP ARLAN FIELD
Currently, oil and gas companies have policies significant savings in costs and resources. In Bashneft implemented a range of programs on energy saving and increasing energy efficiency of production. The program of energy saving and energy-saving technologies to be significantly associated with the reduction of energy losses and reduce the turnaround time of operation of the equipment. The implementation of these programs is only possible through constant research processes occur when the energy-consuming equipment and timely decision making.
The problem of increasing the efficiency of downhole equipment associated with an increase in the profitability of oil production through the use of advanced technologies and increase the turnaround time. This article discusses a method of downhole demulsification used to increase the efficiency of operation of the wells equipped with ESP. The method used in the conditions of education in lifting equipment high-viscosity stable oil-water emulsions. Their formation leads to frequent failure of pumping equipment, the increase in the number of repairs and, consequently, higher costs of oil production. As studies have shown, the impact on production wells at the time of formation of emulsion systems can significantly reduce frictional properties of the moving mixture. The article presents the results of field tests of the technology of injection of the demulsifier with SPCU and withdrawal wells in the mode with frequency control of the drive. The application of these technologies has allowed to reduce costs on the rise of production wells to increase oil production.
CHARACTERISTICS OF CARBONATE MASSIFS IN THE UPPER PASHSHORSKOGO COMPLEX FIELD TIMAN-PECHORA PROVINCE
Pashshorskoe oil field located in the southern part of Shapkina-Yuryakhinskoye petroleum district (LHR) Pechora-Kolvinsky oil and gas field (NGOs). In the Upper complex (Domanik-Famennian deposits) identified two oil deposits associated with carbonate arrays.
In the Upper complex Timan-Pechora province (TPNGP) to carbonate facies arrays assigned secondary and detrital dolomite, organogenic-clastic, sferovo-sgustkovye, sgustkovo lumpy, stromatolithic and clastic limestone. With carbonate structures of different genesis is related to many minerals. Naturally, it is of great interest to these kinds of facilities. In the last 40 years studying the carbonate massifs strenuously engaged in petroleum geologists, the world production of oil and gas from these buildings is constantly increasing. The most thoroughly studied reef tracts, practical importance which both oil and gas reservoirs acknowledged. Poorly studied carbonate massifs of other genesis. Meanwhile, they can be a repository of hydrocarbons and have at least high reservoir properties than reefs. Carbonate arrays of different origins differ from each other in lithology, and, consequently, by the nature of their placement in the reservoir zones with different reservoir properties. Deciphering the genesis and structure identification of a studied array allows you to choose the most efficient method of geological work in each case already exploration stage and is the basis of the prediction of their oil and gas potential, possible type of deposits and the value of probable reserves.
In the process of studying Upper Devonian complex of Pashshorsky deposits three types of carbonate massifs were established: carbonate bank reef array and agglyutigerm. Given their lithology, facies and stratigraphic characteristics.
The study Upper Devonian complex of Pashshorsky oilfield showed that of the collector thickness of massive natural reservoir Frasnian carbonate includes arrays of different origins and different ages (Domanik Livenskoy). Reservoir thickness is characterized by heterogeneity of reservoir properties by area and the section that is controlled by lithofacies postsedimentary conditions and processes.