Оборудование. Технологии. материалы

STUDY OF ELASTOMER SEAL ASSEMBLIES IN OIL AND GAS WELLS

Подробности

Категория: Uncategorised

Опубликовано: 08.05.2023 15:30

Автор: Administrator

Просмотров: 5373

Volume 14.1 (2-1), May 2023, Pages 04-15

 Tamilla Khankishiyeva¹, Javid Mustafayev²

¹Assistant, "Industrial machinery" Department, Azerbaijan State Oil and Industry University, Candidate of technical sciences, Azerbaijan. Email id: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
²Master, "Industrial machinery" Department, Azerbaijan State Oil and Industry University, Azerbaijan. Email id: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

 ABSTRACT

 This paper provides a comprehensive review of literature, research studies, and industry standards relevant to elastomer seal assemblies used in the oil and gas wells. For ensuring well integrity, elastomer seal assemblies are essential parts. Rubber chemistry and technology were important in the pressure and flow management of hydrocarbons from petroleum reservoirs even before Spindletop "gushered" in the big Texas oil explotion in 1901. Rubber continues to play an important part in the oil business, where the cost of constructing an oil or gas well might surpass a billion dollars. Practically all downhole drilling and completion equipment now relies on elastomers and other sealing materials to guarantee consistent, dependable performance throughout service. Research indicates that seal failure may result in blowouts and oil spills, which may have an adverse impact on health, safety, and the environment. Improvements in elastomer seal design and qualification are required, particularly for high pressure and high temperature applications, according to regulators and the industry. In relation to the elastomer seal assemblies used in oil and gas wells, this study presents an extensive assessment of the literature, research studies, and industry standards. The purpose of the paper is to look into seal assembly performance-influencing factors and failure modes. The review's main goal is to identify gaps in industry standards and suggest key areas for future study to increase seal reliability.

In terms of maximum sealing pressure, the produced analytical findings demonstrate the impact of elastomer shape and material parameters. Moreover, various strain situations are examined in order to determine how well the elastomer seals. The industry standards mostly concentrate on material testing and don't provide enough information on how to design elastomer seals at the equipment level. Processes for qualifying seals are not tailored based on the shape, size, and purpose of seal assemblies. The design of seal equipment, including the energization process, the design of the housing and supporting components, functional failures, etc., requires research that goes beyond material testing.

Furthermore, there is a critical need for trustworthy methods that can translate laboratory discoveries into field-scale applications with long service lives.

Key words: Elastomer Seal, Seal evaluation, Industry standards, Well barriers, Well integrity, Seal failure.

METHODOLOGY OF OBTAINING CHROMIUM CARBONYL COMPLEXES AND DEVICES USED IN OBTAINING THEM

Подробности

Категория: Uncategorised

Опубликовано: 19.04.2023 17:48

Автор: Administrator

Просмотров: 5109

Volume 14 (2), April 2023, Pages 160-165

Mehran Mammadli

Master, Faculty of Petroleum Mechanics, Department of Materials Science and Processing Technologies Azerbaijan State Oil and Industry University, Azerbaijan. E-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

ABSTRACT

 The development of modern technology and the long-term processing of materials and constructions used in high temperature conditions make great demands. It is very important to obtain hard-melting metals that meet these requirements. In nature, the scarcity of hard-to-melt metals and their high cost force us to find other more efficient ways. One such solution is the application of hard- -melt metals in the form of thin layers or coatings on metals or structures. For to this purpose, carbonyl compounds of hard-to-melt metals are widely used in technology recently. Carbonyl compounds have important properties, one of which is that they act as raw materials for obtaining coatings and layers through thermal decomposition. However, some difficulties arise in obtaining chromium coatings based on chromium carbonyl complexes with organic ligands. In order to overcome such difficulties, the synthesis methodology of two chromium-based complex compounds with easy volatility and low decomposition temperature, which are used in the production of corrosion-resistant coatings, and the temperature range in their decomposition limits, physical chemical structure parameters have been determined. The research found that both chromium carbonyl complexes obtained by synthesis form chromium coatings with high adhesion on the metal carrier and increase their corrosion resistance. Chromium carbonyl complexes can serve as technologically favorable raw materials for obtaining the necessary chromium coating during the decomposition of  groups at a very low temperature range (100-150 C) without creating additional pressure. Both synthesized complex compounds are raw materials for obtaining corrosion-resistant coatings on weld seams of 09Г2С steel. The use of these complexes as active fillers in abrasive metallurgy has also been determined.

Keywords: Chromium, solvent, toluene, mesethylene, infrared spectrum, chromium carbonyl, complex, melting, decomposition, coating, heating, solution.

REINFORCEMENT OF PISTON PUMP BORE SURFACES WITH NANO PARTICLES AND INCREASE OF CORROSION RESISTANCE

Подробности

Категория: Uncategorised

Опубликовано: 19.04.2023 17:59

Автор: Administrator

Просмотров: 5710

Volume 14 (2), April 2023, Pages 187-193

Nazim Ibrahimov¹, Mahammad Rustamov²

¹Professor, “Material science and processing technologies”, Azerbaijan State Oil and Industry University, Azerbaijan. E-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

²Master’s student, “Material science and processing technologies”, Azerbaijan State Oil and Industry University, Azerbaijan. E-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

 ABSTRACT

 Oilfield pumps occupy a special place in the structure of the complex of equipment used in the drilling of oil and gas wells. It is established that the plunger-bushing assembly is the most vulnerable pair and the failure rate of the pump is largely determined by the failure of this particular node. In order to improve the efficiency and service life of the pump, it is proposed to process the inner surface of the bushings on a laser installation with Cu, Fe, Al nanoparticles. Based on numerous experimental studies, the optimal number of nanoparticles and the technological mode of their application are proposed. It is established that with a decrease in the size of nanoparticles, the hardness of the hardening surface increases many times. This can be explained by the fact that the deformation of the material is caused by the movement of dislocations, while its intergranular boundaries act as a surface against the movement of dislocations.

Keywords: Plunger-bushing pair, nanoparticle, deformation, surface hardening.

TECHNICAL SOLUTION OF PROBLEMS ARISING ON THE SUCTION AND DISCHARGE VALVES OF THR DRILING PUMP

Подробности

Категория: Uncategorised

Опубликовано: 19.04.2023 17:44

Автор: Administrator

Просмотров: 5216

Volume 14 (2), April 2023, Pages 180-187

Gunduz Abbasov¹, Elmar Gafarov²

¹Project engineer of AURORA LLC, master degree student of Azerbaijan State University of Oil Industry, Azerbaijan. Email: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

²Graduate student, department of “Oil-Mechanics”, Azerbaijan State Oil and Industry University, Azerbaijan.

 ABSTRACT

 The purpose of the article is to extend the operational life of piston pumps by making beneficial modifications to the suction and discharge valves. The most common cause of mud pump failures is the wears on the valves so there is an urgent need to increase the durability of the inlet and outlet valves.

This research will allow us to:

• lengthen the functional life of the suction and discharge valves.
• develop the mud pump's technical requirements.
• enhance the drilling pump's economic effectiveness.

Thus, it makes sense to do study on piston mud pump valves in order to improve the technical parameters by making some positive adjustments. A moved forward valve situates which essentially diminishes the affect stretch caused by the effect of a piston pump valve body contrary the valve situates. The valve situate comprises a by and large round and hollow body parcel portion parcel with a fixing surface which is slanted from the external surface of the round and hollow body parcel toward an insides throat of said round and hollow body parcel. The valve body comprises a for the most part disc-shaped parcel and a truncated funnel shaped parcel. An elastomer embed is gotten in a groove within the valve body. The cone shaped parcel of the valve comprises an inclined confront, counting a metal parcel and an elastomeric parcel shaped by the elastomeric embed. Within the valve situate of the present innovation, an annular weight alleviation groove within the round and hollow body parcel of the valve situate permits the inclined confront of the valve situate to flex subsequently calming a noteworthy sum of the affect stack between the restricting confront of the valve gathering.

Keywords: suction valve, discharge valve, valve wears, valve seat, poppet valve, piston mud pumps.