scholarly journals THE INFLUENCE OF ETHYLENE COPOLYMERS WITH VINYL ACETATE ON PROPERTIES OF RUBBER BASED OF BUTADIENE-NITRILE CAOUTCHOUC

Author(s):  
Ivan S. Spiridonov ◽  
Marina S. Illarionova ◽  
Nikolay F. Ushmarin ◽  
Sergei I. Sandalov ◽  
Nikolay I. Kol'tsov

Rubber-technical products, which are used in the oil and gas industry, must have high thermal and aggressive strength. Rubbers based on butadiene-nitrile caoutchoucs are usually used for these purposes, since they have good operational properties. However, under the influence of elevated temperatures, the resistance of such rubbers to the action of petroleum products is reduced, as a result of which the physico-mechanical characteristics decrease. To improve the operational properties of rubber-technical products, various technological additives are introduced into the rubber mixtures. Such additives can be copolymers of ethylene with vinyl acetate(EVA), which increase the resistance of rubbers to action of high temperatures and aggressive media. This is due to the fact that these copolymers are well combined with butadiene-nitrile caoutchoucs, forming coordination bonds with rubber molecules, which contributes thereby increasing in the elastic-strength and performance properties of rubber. In this connection, the influence of EVA (sevillenes 11104-030, 11808-340 and MarPol 1802), differing in the content of vinyl acetate units, on the rheometric, physico-mechanical and operational properties of the rubber mixture based on butadiene-nitrile rubber in this paper was investigated. The study was carried out to improve the thermo-resistance of rubber used for the manufacture of oil and petrol resistant rubber-technical products for the oil and gas industry. The rubber mixture was prepared on laboratory rolls and standard samples were vulcanized in an electrically heated press. The study of rheometric properties has shown that EVA affect the characteristics of the vulcanization process of a rubber mixture. For vulcanizates, the influence of the content of EVA in a rubber mixture on the physical and mechanical properties was studied: the conditional tensile strength, elongation at break, tear resistance, rebound elasticity, Shore A hardness, relative compression deformation. The effect of the standard liquid ZHR-1 on the change in these properties, as well as the degree of swelling of the vulcanizates after their daily soaking in the standard liquid SZHR-1 and a mixture of isooctane + toluene, was studied. It has been established that vulcanizate of a rubber mixture containing sevilene 11808-340 is characterized by the best physico-mechanical and operational properties.

2020 ◽  
Vol 64 (10) ◽  
pp. 94-97
Author(s):  
Ivan S. Spiridoniv ◽  
◽  
Nikolay F. Ushmarin ◽  
Nadezhda A. Semenova ◽  
Sergey I. Sandalov ◽  
...  

The article presents the results of a study of the effect of the technological active additive СD-12, which is a combination of zinc salts of fatty acids, on the physical and mechanical properties and resistance to aggressive media of rubber for sealing elements of packer-anchor equipment. The rubber mixture was prepared on the basis of hydrogenated nitrile-butadiene rubber Therban 3406, vulcanizing agent Novoperox BP-40, coagents for vulcanization of zinc monomethacrylate and oligoester acrylates MGF-9 and TGM-3, antioxidants Naugard 445 and agidol-2, fillers of technical carbon P 514 and T 900, filler dispersant stearic acid, rosin softener and other ingredients. To stabilize the physical and mechanical properties of vulcanizates, uniform dispersion of rubber components, reduce viscosity and improve vulcanization properties, a technological additive CD-12 was also introduced into the rubber mixture. The rubber mixture was prepared in a laboratory SKI-3L rubber mixer at a temperature not exceeding 70 °C for 7 min. The resulting mixture was vulcanized on a PV-100-2RT-2-PCD vulcanization press at a temperature of 150 °C for 60 minutes and then further vulcanized in a thermostat at a temperature of 160 °C for 6 hours. For the obtained vulcanizates, the physical and mechanical properties and resistance to the action of aggressive media were determined according to the standards existing in the rubber industry. On the basis of a rubber mixture heat-aggressive persistent sealing elements with a hardness of 70±5 Shore A units were made. These sealing elements as part of two sets of packer-anchor equipment were tested for tightness in a casing string simulator. The tests were carried out in an environment of PMS-200 polymethylsiloxane fluid at a temperature of 150 °C, an axial load of 6 tons and a pressure of 70 MPa. It is shown that both sets of packers have passed the tests and meet the requirements. The developed rubber mixture with a hardness of 70±5 Shore A units, containing the process additive СD-12, can be used for the manufacture of sealing elements for packers used in the oil and gas industry.


2014 ◽  
Vol 2014 (HITEC) ◽  
pp. 000319-000324
Author(s):  
Bob Hunt ◽  
Andy Tooke

This paper reviews development and qualification work performed on 225°C operating temperature modules based on ceramic thick film multi-layer substrates supporting embedded thick film resistors, assembled passive and active components with ‘chip and wire’ connections and sealing in hermetic metal and ceramic cavity packages. It considers aspects of development and importantly investigates product qualification which includes shock and vibration at elevated temperatures as well as thermal shock and temperature cycling. In conclusion there is an attempt to answer the question “Has microelectronic MCM technology matured and is it capable of servicing the widespread needs of down well 225 °C operating applications in the Oil and Gas industry?”


Author(s):  
Dinora Ishmanova

In recent years, the oil and gas industry of Uzbekistan has been developing very fast, and oil and gas production has grown significantly. Uzbekistan achieved oil independence. Natural gas fields in the Republic are being exported to foreign countries as well as satisfying the needs of all types of industrial enterprises and population. Growth of oil and gas extraction is achieved by opening up of new oil and gas constructions and fields, increasing the efficiency of mining operations, and applying new methods of increasing the level of resource utilization. Determining the ultimate goal of socio-economic transformations in our country is the starting point of the current reform strategy. At the same time, the focus is on ensuring the dynamic development of the fuel and energy complex, increasing oil and gas extraction and processing, and gaining energy independence of the republic. LUKOIL is one of the world's largest vertically -Integrated companies engaged in the extraction and processing of oil and gas, manufacturing of petroleum products and petrochemicals. The main areas of its activity, the Company holds a leading position in the Russian and global markets.


2020 ◽  
Vol 8 (5) ◽  
pp. 2582-2586

Automation and control systems are necessary throughout oil & gas industries, to production and processing plants, and distribution and retailing of petroleum products. Pipelines are the efficient mode of transportations of fuels for processing plants over long distances. At present Automation is achieved by using PLC’s that are communicated through SCADA. But it is complex and remote operation is not possible. With the introduction of IoT, the pipeline leak detection system is improved through real-time monitoring of the pipelines. Our Proposed system is designed to detect even small leakage that occurs within the pipeline. The implementation of IoT in oil and gas industries prevents accidents and to make quick decisions based on real-time data


2017 ◽  
Vol 743 ◽  
pp. 394-397 ◽  
Author(s):  
Sofia Dzhalilova ◽  
Vladimir Erofeev

In the recent years, due to the introduction of new Technical Regulations in the Oil and Gas Industry in 2008, high technical and environmental performance values were set to be met by production volume and by the quality of hydrocarbons and a variety of oil products coming from the fields to factory processing and trade parks. The presence of a powerful raw material base, the shortage of petroleum products and the development of market relations create objective conditions for increased use of a variety of natural hydrocarbons, for improved technological schemes of oil preparation and oil processing on the oil fields and for modernizing the equipment used. On small and remote oil fields, which for economic reasons cannot be linked by transport pipelines, a complex system of preparation of liquid hydrocarbons is used with the ultimate goal of obtaining some refined products such as gasoline, diesel fuel and furnace oil.


2021 ◽  
Author(s):  
Nachiket Arbad ◽  
Fernando Rincon ◽  
Catalin Teodoriu ◽  
Mahmood Amani

Abstract The catastrophic events faced by the Oil and Gas industry in the past depict the importance of maintaining the integrity of the well. The cement acts as a crucial barrier throughout the life cycle of the well. The contamination of the cement occurs due to inefficiency in cementing practices and operations. Experimental investigations have been done on the reduction in mechanical properties of different API class cement considering contamination with water-based mud and oil-based mud. This study focuses on analyzing the changes in mechanical properties of API Class C cement on varying the following parameters: OBM contamination (0%, 0.6%, 1.1%, 2.2%, 4.3%) Curing time (4 hrs, 6 hrs, 8 hrs, 1 day, 3 days, 7 days) Temperature (25˚C, 75 ˚C) API recommendations were followed for preparing the cement slurries. The destructive, as well as non-destructive tests were carried out on the cement samples at ambient room temperature to measure the uniaxial compressive strength (UCS) for OBM contaminated class C cement slurries. The general trend observed is that the UCS increases with an increase in curing time and temperature. UCS decreases with an increase in OBM contamination. Logarithmic trends were obtained for UCS vs curing time for different contaminations at a given temperature. Exceptions were observed at lower curing times where contaminated samples showed better results than the neat cement slurries. These observations play a critical role in understanding contaminated cement behavior. This widespread work was carried out only on API Class C cement to provide reliable data for future references. The correlations presented in this paper will help operators estimate the deterioration in mechanical properties of Class C cement in the presence of low OBM contamination. Email: [email protected] & [email protected]


2021 ◽  
Author(s):  
Raja Wasim Ahmad ◽  
Khaled Salah ◽  
Raja Jayaraman ◽  
Ibrar Yaqoob ◽  
Mohammed Omar

Today's systems, approaches, and technologies leveraged for managing oil and gas supply chain operations fall short in providing operational transparency, traceability, audit, security, and trusted data provenance features. Also, a large portion of the existing systems is centralized, manual, and highly disintegrated which make them vulnerable to manipulation and the single point of failure problem. In this survey, we explore the potential opportunities and applications of blockchain technology in managing the exploration, production, and supply chain and logistics operations in the oil and gas industry as it can offer traceability, immutability, transparency, and audit features in a decentralized, trusted, and secure manner. We discuss state-of-the-art blockchain-based schemes, research projects, business initiatives, and case studies to highlight the practicability of blockchain in the oil and gas industry. We present the potential opportunities brought about by blockchain technology in various use cases and application scenarios. We introduce several systems that leverage blockchain-based smart contracts to automate the important services in terms of tracking and tracing of petroleum products, protection of international trade documents, and coordination of purchasing and bidding activities for granting oil exploration rights to petroleum exploration and development companies. Finally, we present open challenges acting as future research directions.


2014 ◽  
Vol 8 (3) ◽  
Author(s):  
Emerald Brilliant Kussoy ◽  
David Paul Elia Saerang ◽  
Winston Pontoh

Taxes are the main source of state revenue. Without taxes, the majority of state activities is difficult to be implemented. One of the biggest contributor to state revenue is taxes from the oil and gas industry. Fuel ( BBM ) is one type of fuel produced from refining crude oil . Crude oil from the earth refinery processed in advance to produce oil products, which including the fuel. Associated with the tax code, the fuel tax is the object of section 22 is subject to income tax levied by Pertamina and entities other than Pertamina engaged in the sale of fuel over petroleum products. The purpose of this study is to evaluate the tax calculation and reporting of the top 22 pph fuel redemption is in accordance with the PMK 154/03/2010. The analytical method used is descriptive analysis. The findings of this study is the calculation done by PT. Pertamina on the sale of products or the goods are delivered fuel oil, gas, and lubricants have done well or in accordance with the provisions of applicable tax of 0.30 % of the sales price in the gas station filling station Sindulang as Private, in income tax article 22 reporting PT. Pertamina already fully in accordance with the tax regulations ,reporting not later than 20 days after the tax period ends.


2019 ◽  
Vol 57 (2) ◽  
pp. 68-73
Author(s):  
Evgeny N. Egorov ◽  
◽  
Nikolay F. Ushmarin ◽  
Sergey I. Sandalov ◽  
Ivan S. Spiridonov ◽  
...  

The article investigated the effect of caoutchoucs, sevilen 11808-340, vulcanizing groups, fillers, plasticizers, ingredients of directional actions on the physical and mechanical properties (conditional tensile strength, elongation at break, hardness, rebound elasticity, tear resistance) and operational properties (changes of conditional tensile strength of rubbers after exposure to oil, weight changes after aging of rubbers in a solution of citric and hydrochloric acids, changes in the volume of rubbers after exposure to a mixture of oil and water) of two rubbers. These rubbers are developed for the manufacture of the outer and inner layers of water-oil-swellable sealing elements (WSOE) for the oil and gas industry. It has been established that rubber for the outer layer of WSOE based on butadiene-nitrile BNKS-18AMN, isoprene SKI-3 and butadiene CKD caoutchoucs, as well as rubber for the inner layer of UEN based on butadiene-nitrile BNKS-18AMN, butadiene methylstyrene SKMS-30ARK and butadiene CKD caoutchoucs possess the required physicomechanical and operational properties. It was shown that these rubbers containing a vulcanizing group sulfur + thiazole 2 MBS, sevilen 11808-340, a combination of carbon black T 900 with rosil 175, talc and chalk, petroleum resin “Sibplast”, vermiculite and igloprobivnoe cloth, are characterized by improved physical-mechanical and operational properties. These rubber can be recommended as the basis for the manufacture of outer and inner layers of water-oil-swelling sealing elements.


2021 ◽  
Vol 102 (3) ◽  
pp. 17-26
Author(s):  
G.A. Dzhamalovа ◽  
◽  
L.S. Kurbanova ◽  
B.H. Tusupova ◽  
M. Nakypbek ◽  
...  

The main environmental problem in regions with a developed oil and gas industry is the pollution of environmental objects with oil and petroleum products. In the oil and gas regions of the country, an extremely unfavorable environmental situation has already developed, which is getting worse from year to year. In this article, an environmental assessment is carried out by microbiological and chemical analysis of gray-brown soils contaminated with oil and petroleum products. The paper reflects the bioindication value of various ecological and trophic groups of microorganisms, in particular, heterotrophic microorganisms and mold fungi. Analysis of the responses of mold fungi to various types of anthropogenic impact in terrestrial ecosystems makes it possible to better assess the bioindication potential of the microbiota. Based on the data obtained, it is possible to trace the survival strategy of various microbial communities in the studied anthropogenic ecosystem. Modern developments in the basic principles of microbial community ecology, as well as advances in population biology and numerous data on the response of individual species to abiotic and biotic factors will allow us to analyze the bioindication potential of the microbiota at different levels of the ecotechnosystem organization. The use of our data provides a basis for developing a plan of measures aimed at improving the health of the environment.


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