The results of introducing technology to remove gas from the annulus of a well by creating vacuum at the Zarechnoye field

2020 ◽  
pp. 100-108
Author(s):  
G. I. Bikbulatova ◽  
A. A. Isaev ◽  
A. S. Galeev ◽  
Yu. A. Boltneva ◽  
O. A. Shipilova ◽  
...  

The technology for pumping out and partial utilization of associated gas in oil fields by the vacuum method, using a unit for pumping gas from the annulus of the well and pumping it into the product collection system (KOGS), have been implemented at wells at the Zarechnoye field of Geotech JSC in the Republic of Tatarstan. These wells are operated by sucker rod units. The use of the KOGS unit allowed us to evaluate the effectiveness of the production system under consideration Experimental studies have shown that a decrease in annular pressure causes a significant increase in the dynamic level and an improvement in the conditions of oil inflow to the well. The operation of sucker rod units in such conditions provides an increase in the delivery and filling coefficients of the pump and, accordingly, an increase in oil production.

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 83
Author(s):  
Oleg Bazaluk ◽  
Olha Dubei ◽  
Liubomyr Ropyak ◽  
Maksym Shovkoplias ◽  
Tetiana Pryhorovska ◽  
...  

During oil fields operation, gas is extracted along with oil. In this article it is suggested to use jet pumps for utilization of the associated oil gas, burning of which causes environmental degradation and poses a potential threat to the human body. In order to determine the possibility of simultaneous application of a sucker-rod pump, which is driven by a rocking machine, and a jet pump (ejector) in the oil well, it is necessary to estimate the distribution of pressure along the borehole from the bottomhole to the mouth for two cases: when the well is operated only be the sucker-rod pump and while additional installation of the oil-gas jet pump above its dynamic level. For this purpose, commonly known methods of Poettman-Carpenter and Baksendel were used. In addition, the equations of high-pressure and low-pressure oil-gas jet pumps were obtained for the case, when the working stream of the jet pump is a gas-oil production mixture and the injected stream is a gas from the annulus of the well. The values which are included in the resulting equations are interrelated and can only be found in a certain sequence. Therefore, a special methodology has been developed for the practical usage of these equations in order to calculate the working parameters of a jet pump based on the given independent working parameters of the oil well. Using this methodology, which was implemented in computer programs, many operating parameters were calculated both for the well and for the jet pump itself (pressures, densities of working, injected and mixed flows, flow velocities and other parameters in control sections). According to the results of calculations, graphs were built that indicate a number of regularities during the oil well operation with such a jet pump. The main result of the performed research is a recommendation list on the choice of the oil-gas jet pump location inside the selected oil well and generalization of the principles for choosing the perfect location of such ejectors for other wells. The novelty of the proposed study lays in a systematic approach to rod pump and our patented ejector pump operation in the oil and chrome plating of pump parts. The result of scientific research is a sound method of determining the rational location of the ejector in the oil well and the calculation of its geometry, which will provide a complete selection of petroleum gas released into the annulus of the oil well. To ensure reliable operation of jet and plunger pumps in oil wells, it is proposed to use reinforcement of parts (bushings, plungers, rods, etc.) by electrochemical chromium plating in a flowing electrolyte. This has significantly increased the wear resistance and corrosion resistance of the operational surfaces of these parts and, accordingly, the service life of the pumps. Such measures will contribute to oil production intensification from wells and improve the environmental condition of oil fields.


Author(s):  
T.A. Kamaljanova ◽  
◽  
P. Gaur ◽  

The article discusses the role of the oil and gas sector in the foreign policy of the Republic of Kazakhstan. It is known that the oil industry of Kazakhstan is one of the main sectors of the economy of Kazakhstan. The economic, and therefore social development of the country as a whole depends on the export of this mineral. The article analyzes the main large oil fields such as Tengiz, Kashagan, Karachaganak, Uzen, Zhetybai, Zhanazhol, Kalamkas, Kenkiyak, Karazhanbas, Kumkol, Northern Buzachi and others, which are the most attractive investment sectors for foreign investors. The article also shows the proportionality of the production and consumption of oil and gas resources in the republic, as well as the dynamics of their development from the period of independence to the present. According to some reports, the production of the so-called "liquid currency" exceeds its consumption in the republic. According to Kazakhstan experts, oil production in Kazakhstan will continue to grow in subsequent years, which will undoubtedly attract more investors, especially in the oil and gas sector. Along with this, the negative side of the resource is considered in the work, for example, oil production in the region can destroy its ecosystem and have a negative impact on the environment as a whole. Thus, the article is devoted to the most urgent issues in Kazakhstan and its purpose is to show what role the oil and gas resource plays in the foreign policy of Kazakhstan as a whole.


2021 ◽  
Author(s):  
Baghir Alakbar Suleimanov ◽  
Sabina Jahangir Rzayeva ◽  
Ulviyya Tahir Akhmedova

Abstract Microbial enhanced oil recovery is considered to be one of the most promising methods of stimulating formation, contributing to a higher level of oil production from long-term fields. The injection of bioreagents into a reservoir results in the creation of oil-dicing agents along with significant amount of gases, mainly carbon dioxide. In early, the authors failed to study the preparation of self-gasified biosystems and the implementation of the subcritical region (SR) under reservoir conditions. Gasified systems in the subcritical phase have better oil-displacing properties than non-gasified systems. The slippage effect determines the behavior of gas–liquid systems in the SR under reservoir conditions. Slippage occurs more easily when the pore channel has a smaller average radius. Therefore, in a heterogeneous porous medium, the filtration profile of gasified liquids in the SR should be more uniform than for a degassed liquid. The theoretical and practical foundations for the preparation of single-phase self-gasified biosystems and the implementation of the SR under reservoir conditions have been developedSR under reservoir conditions. Based on experimental studies, the superior efficiency of oil displacement by gasified biosystems compared with degassed ones has been demonstrated. The possibility of efficient use of gasified hybrid biopolymer systems has been shown.


Author(s):  
X. C. Nguyen ◽  
Komla Miheaye ◽  
Mun-gyu Kim ◽  
Howard Newman ◽  
Dong-hoon Yoo ◽  
...  

This study describes a FLNG specifically designed to monetize Associated Gas (AG) of producing oil fields located within convenient distance of an existing LNG Plant or Port with LNG storage facility. Limited production capacity combined with short range small capacity shuttles and limited LNG storage capacity, provide a cost effective means for LNG production. This FLNG is designed to service an existing industry and does not require development of stranded gas discoveries.


Since early 1980, BP has been developing the conceptual design of a Single-Well Oil Production System or SWOPS. This paper outlines the concept and discusses the design and the operational criteria that have been applied in this early work. It further examines some of the innovative areas of technology that have been included in this new approach and outlines the work of the detail design phase, which has just started.


2020 ◽  
Vol 59 (1) ◽  
pp. 115-130
Author(s):  
Marko Vidmar ◽  
Marino Žagar ◽  
Mile Perić

This paper deals with the topic of a modern electronic toll collection system that will be applied in the Republic of Croatia from the year 2022 onwards. The paper primarily analyses the existing toll collection systems in Croatia, as well as in the European Union. Modern electronic toll collection systems were analysed with an emphasis on the ANPR (Automatic Number Plate Recognition) system, because ANPR technology will be used in Croatia after the restructuring of road traffic occurs. ANPR is not a new technology, however in the last twenty years it has found its wider application. This happened mostly thanks to local and global infrastructural development and technological improvements therefore in turn infrastructure required for the operation of this system became cheaper. By applying the ETC and ANPR, Croatia will have a system in line with European directives and practices which are being applied in other European countries. The system will in turn significantly raise the quality of road traffic in Croatia and reduce its costs.


2018 ◽  
Vol 12 (5) ◽  
pp. 20-24
Author(s):  
D. Z. Yeskhozhin ◽  
S. O. Nukeshev ◽  
G. I. Lichman ◽  
Ye. S. Akhmetov ◽  
K. D. Yeskhozhin

Livestock products are the most important component of the actual total volume of farm produce. A reliable fodder base is required to increase their quantity and quality. The most part of the natural forage lands of the Republic of Kazakhstan is located in areas with insufficient water availability and low soil productivity. When they are used intensively, they are thinned and degraded. Their restoration and improving is possible if effective technologies and technical means are effected. However, the existing methods for improving and restoring forage lands and the technical means for their implementation are not adapted to the natural­climatic and agrobiological features of the zone of Central and Northern Kazakhstan, which feature insufficient moisture supply and low productivity.The main indicator of the effectiveness of the use of fodder crop seeds is their uniform distribution in the soil. However, most of them, due to their poor flowability, form dome structures of different sizes in front of seeding openings, which hinder the seeding process. To increase the flowability of such seeds, they are mixed with sand, sawdust, fertilizer and other materials. However, during the operation of seeders, the mixture is stratified according to its specific gravity. (The research purpose) is to develop a lobe­type agitator, which prevents the formation of a dome over seed holes. (Materials and methods) Theoretical studies have been carried out using the methods of classical and applied mechanics, as well as special sections of higher mathematics. (Results and discussion) The authors have experimentally confirmed the main parameters of the agitator and its resistance to movement in a seed medium. Experimental studies have been carried out on the basis of GOST 31345­2007. The studies have confirmed that a four­lobe agitator with an external radius of 0.06 m and an inclination angle to the plane of rotation 20°, mounted on the fertilizer drill SZS­2.0, has shown a total resistance of 3,042 kg with a design value of 2.925 kg. (Conclusions) The obtained results can be offered to the designers and developers of machines of the considered type when calculating and designing their working elements.


Significance Although some important hydrocarbons projects have seen progress, both Baghdad and Erbil have made fresh moves seen as prejudicial by oil sector investors. Uncertainty continues over the authorities’ commitment to contracts, while the Kurdistan region has yet again fallen behind on payments to oil firms. Impacts Increased oil production as OPEC+ limits ease will make progress on associated gas capture and water injection more urgent. A dire electricity situation may pose a threat to political stability. Uncertainties over the upcoming elections in October and poor prospects for bureaucratic reform may further deter investment.


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