Equipment. Technologies. Materials

STUDY OF GAS-LIFT VALVE OPERATION

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Published: Sunday, 12 February 2023 18:23

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Volume 13 (1), February 2023, Pages 109-116

Lala Hajiyeva¹, Nijat Ahmadov²

¹Docent, "Industrial machinery" Department, Azerbaijan State Oil and Industry University, PhD in technology, Azerbaijan. Email id: This email address is being protected from spambots. You need JavaScript enabled to view it.

²Master, "Industrial machinery" Department, Azerbaijan State Oil and Industry University, Azerbaijan. Email id: This email address is being protected from spambots. You need JavaScript enabled to view it.

 ABSTRACT

 Gas lifts are versatile, dependable lifting systems that provide numerous options. This article discusses typical problems with gas lift valves used in geotechnical applications. What could result in such operational and well-related flaws. A closed system powered by high pressure gas is a gas lift system. Gas lifts are frequently adaptable, dependable lift systems with a variety of manufacturing options. For all operations, adding gas from an outside source lowers the fluid pressure level, which forces more fluid to be kept in conditions with high water retention. Excellent product quality, changeable gas lift complex, and lift depth. Where possible, involuntary injection gas tensions and volumes are extremely rare and can support various synthetic buoyancy types. By lowering the fluid's pressure stages with the use of an extraterrestrial gas penthouse, more fluid may be stored in the Force as the descent goes on. As you alter the parameters, consider how other elements alter. The behavior of gas lift valves is predicted using a variety of techniques. These techniques additionally consider additional factors. The Thornhill-Craver equation is the formula most frequently used to forecast the performance of throttle valves. The interpretation of gas lift taps is overestimated by the Thornhill-Craver equation, particularly for big ports, according to Gerberding and Acuna. Gas lifts are not appropriate for combined liquids, supersaturated Neptune, or thick, abrasive paintings. , which focuses on how to increase the performance of weak gas lift taps, highlighting the necessity of their complicated design, does not function well for grabbing old wells or extending inflow lines with external internal compasses.

Keywords: Gas liquid Ratio (GLR), Fluid, Pressure, Gas Lift Valves (GLVs), Injection Gas, Bottom Hole Pressures (BHPs)., Continuous Flow, Intermittent Flow.

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SUBMERGED ARC WELDING AND MELTING TECHNOLOGY

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Published: Sunday, 12 February 2023 18:18

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Volume 13 (1), February 2023, Pages 92-98

Rustam Abaszada

Offshore piping design engineer, Piping engineering, SOCAR-KBR LLC. Magistrate in increasing stability and repairing pieces of equipment, Azerbaijan State Oil and Industry University. Email id: This email address is being protected from spambots. You need JavaScript enabled to view it.

 ABSTRACT

 The article dedicated  "Submerged arc welding and meltıng technology" method, which is one of the technologies for repairing friction-worn parts of oil and gas equipment.

The efficiency, technological regime,advantages of the process are noted, and it is also shown that this method is used today in the oil industry and shipbuilding.

With these methods, the repairing of a part of the pieces corroded by friction, as well as the possibility of welding steel plates of different grades and thicknesses, was reflected.

In determining welding procedures for certain applications, the welding engineer must first take into account the specific welding qualities required, since in practice, although some factors can be determined quite accurately, others change during manufacturing process.

Arc voltage, electrode selection, welding speed are important considerations in determining operating mode, and the penetration caused by high voltage combined with low speed is indicated accordingly.

The supply of agent (glycerin) to the recently created attachment zone is indicated. It reduces the thermal impact of the cooling arc on the half and will increase the cooling rate of the deposited and metal, decreasing the deformation and self-heating of the adjacent elements of the half. Besides, the liquid serves to safeguard the liquid metal from the harmful effects of chemical element and gas.

Keywords: overheating, vibration, crack, arc voltage, welding defects, welding speed, technical glycerin, soda ash.

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DYNAMICS OF DECOMPOSITION OF SOLID HOUSEHOLD WASTE IN THE PRESENCE OF SULFURIC ACID

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Published: Sunday, 12 February 2023 18:21

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Volume 13 (1), February 2023, Pages 99-108

Sattar Ibragimov¹, Rana Jamalova², Khoshqadam Yusifova³

¹Director of “İntellectual property management center”Azerbaijan state Oil and Industry University, Candidate of Agricultural Sciences, Associate Professor;

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. https://orcid.org/0000-0002-7298-952X

^{2Senior laboratory assistant, dissertation candidate of Sciences in the specialty "Chemical technology and engineering"; Azerbaijan state Oil and Industry University.}

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. https://orcid.org/0000-0002-3171-7536

³ Junior researcher of Republican Seismic Survey Center of ANAS, dissertation candidate of Sciences in the specialty "Ecology (in the field of science)”

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. https://orcid.org/0000-0002-3861-79525

ABSTRACT

The article is devoted to the development of technology for obtaining organic-mineral fertilizers and chemical meliorants on the basis of solid waste (SW). The presented article mainly describes the physico-chemical basis of decomposition of solid waste with solutions of different percentages of sulfuric acid, which is the first stage of the study. The purpose of the research is to study the physico-chemical basis of decomposition of solid waste depending on the concentration of sulfuric acid solution, its initial temperature, time and intensity of mixing during the development of technology for obtaining organic-mineral fertilizers and ameliorative substances.

During the study, the concentration of sulfuric acid solution from 5% to 70, decomposition dynamics of samples within 36-80 minutes, It was studied under mixing conditions at an intensity of 40 per/min to 180 per/min. It was established that each factor has a great influence on the percentage of decomposition of solid household waste, therefore, the optimal parameters for each factor were determined and clarified as a result of experimental experiments.

As a result of the conducted research, it was determined that solid waste from the point of view of the richness of macro-and microelements contained in it is a fully usable raw material for fertilizer production, it has been observed that the extraction of food-repellent elements from the composition of solid household waste with 10-20% sulfuric acid solution is appropriate and in this case, along with the decomposition, the process of neutralization of microorganisms in it takes place. 40-60⁰C optimum temperature of technological process for transition of moisture-repellent elements into solution, it has been proved that the concentration of acid solution is between 10-20% and the mixing intensity is 60-140  per/min., in the end, it is recommended to enrich the composition of the obtained fertilizer with nutritive substances after the completion of the technological process in order to improve the quality of the composition of the obtained liquid fertilizer.

As a result of the conducted studies, it was found that during the decomposition of solid waste in the presence of weak acid solutions, about 80-85% of the nutrient elements contained in it can be extracted and used in fertilizer production.

Keywords: fertilizer, solid waste, sulfuric acid, ameliorant, salinity, salinization.

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INVESTIGATION AND RELIABILITY IMPROVEMENT OF ROD DOWNHOLE PUMP VALVE ASSEMBLY

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Published: Sunday, 12 February 2023 18:16

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Volume 13 (1), February 2023, Pages 83-91

Tamilla Khankishiyeva¹, Vuqar Ashiraliyev²

¹Assistant, "Industrial machinery" Department, Azerbaijan State Oil and Industry University, Candidate of technical sciences, Azerbaijan. Email id: This email address is being protected from spambots. You need JavaScript enabled to view it.

²Magistr, "Industrial machinery" Department, Azerbaijan State Oil and Industry University, Azerbaijan. Email id: This email address is being protected from spambots. You need JavaScript enabled to view it.

ABSTRACT

 The purpose of the work: modernization of the valve, in order to increase reliability, wear resistance, increase the pump flow and reduce the load on the rod string. As well as improved durability. Object of work: Rod pump valve.

Realization of the goal is achieved by performing the following tasks:

1. Overview of known designs of the valve assembly of a sucker rod pump;
2. Identification of a number of causes of valve failure, as well as its causes of wear;
3. Calculation of the main parameters of the pump;
4. Overview of the design of a sucker rod pump, to understand the problem;
5. Development of measures for the maintenance and repair of the pump.

In the course of the WRC, a review and analysis of information on the designs of the valve assembly of a borehole rod pump was carried out. The problem of its wear has been studied. The problem of valve design is formulated and solved.

At the moment, sucker rod pumps (SRP) and electric submersible pumps (ESPs) are used. Since the ESP has much higher production capabilities compared to the rod, the main volume of oil in the country is produced using ESP units.

In view of the fact that the simplicity of the design of the SRPU is the most maintainable during practical operation, it is precisely such installations that are used at the moment. And also the positive aspects of the SRPU are the convenience of its adjustment, the small effect on the operation of the SRPU of the physical and chemical properties of the pumped liquid, the relatively high efficiency and the possibility of operating wells of small diameters, compared with other installations and methods of operation.

However, SRPU oil production is based on relatively old oil production technology and techniques, especially for downhole and downhole equipment and technological operations carried out using this equipment.

The development, manufacture and testing of new equipment is becoming especially relevant.

The purpose of my project is to increase the filling factor of a sucker rod pump, as well as to increase the reliability of its operation after repairs. An increase in the filling ratio of the SRP is achieved by upgrading the valve assembly, and an increase in reliability.

Keywords: sucker rod pump, valve part, abrasion, reliability, downhole pump, suction valve, discharge valve.

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