Downhole Heating Technology – New Solution for Paraffinic Wells

2021 ◽  
Author(s):  
Mihaela Vlaicu ◽  
Vasile Marius Nae ◽  
Patrick Christian Buerssner ◽  
Stefan Liviu Firu ◽  
Natalya Logashova
Keyword(s):  
Technology Implementation ◽  
Online Monitoring ◽  
New Technology ◽  
Internal Diameter ◽  
Technology Application ◽  
Production Wells ◽  
The Difference ◽  
Wax Crystallization ◽  
Heating Technology ◽  
Production Losses

Abstract Paraffin represents one of the main case of failures and production losses which facing the entire oil industry. Prevention of paraffin deposition on the subsurface/surface equipment can be achieved by keeping the paraffin dissolved in crude oil or minimizing the adhesion or aggregation process of wax crystals. The paraffin problems which occur, conduct to gradual reduction of the tubular and pipelines internal diameter, restriction or valves blockages, and reduce the equipment capacity until the production is stop. Problems due to paraffin deposition varies and is different according with each commercial field, sometime the difference is from a well to well which producing from the same reservoir with different consistency. How we shall proceed? Before or after paraffin is field on the equipment? How could be avoid the future paraffin deposition? How long the selected method is proper for well ? The decision represents a combination based on oil's chemical & physical characteristics, well's behavior, method selected for prevention or elimination and combined with economic analysis and field experience. The paraffin inhibition applying is a common practice in OMV Petrom, which cover majority of the production wells. For the special wells, which the paraffin inhibition didn't provided satisfying results (multiple intervention due to paraffin deposition) was selected the Down Hole Heating technology (DHH) which was successfully tested in our company since 2014 thanks according with the yearly New Technology Program. The operating principle consists in heating the fluid volume from tubing using the heating cable which can be installed inside tubing, for NF and ESP wells or outside tubing for SRP or PCP wells. The cable is designed and located at the interval of wax crystallization appearance and heats the fluid to the temperature higher than the wax crystallization point (WAT). Since then, the DHH technology had an upward course, proven by high run life (highest value 2500 days / average 813 days) of the technology at the total 47 wells equipped, until this moment. Based on the successful results, recorded of 64% of old production wells equipped, it was decided to apply the technology at first completion of the new wells (36%), thus ensuring the protection of the new equipment. The paper offers an overview of DHH technology implementation, achievements, benefits and online monitoring of technology implementation starting with 2014 until today. The total impact shown a decreasing of no.of failures with 73,8%, the cost of intervention with 76,5%. The production losses decreased only with 5%, which certifies the fact that the technology helping production maintaining during the exploitation in comparison with production losses due paraffin issues recorded at wells without equipped with DHH technology. During 6 years of down hole heating technology application were developed candidate selection decision tree, monitoring the electrical efficiency, using the adaptability capacity of the technology from one well to another and integrate the temperature parameters in online monitoring system as part of digitalization concept of OMV Petrom, aspects which will be present in this article.

Microencapsulation and Nanoencapsulation: A Review

2017 ◽  
Vol 9 (3) ◽  
Author(s):  
V. Suganya ◽  
V. Anuradha
Keyword(s):  
Drug Release ◽  
New Technology ◽  
Inert Material ◽  
Food Industries ◽  
Control Drug ◽  
Advantages And Disadvantages ◽  
Nano Scale ◽  
Pharmaceutical Industries ◽  
The Difference ◽  
Control Drug Release

Encapsulation is a process of enclosing the substances within an inert material which protects from environment as well as control drug release. Recently, two type of encapsulation has been performed in several research. Nanoencapsulation is the coating of various substances within another material at sizes on the nano scale. Microencapsulation is similar to nanoencapsulation aside from it involving larger particles and having been done for a greater period of time than nanoencapsulation. Encapsulation is a new technology that has wide applications in pharmaceutical industries, agrochemical, food industries and cosmetics. In this review, the difference between micro and nano encapsulation has been explained. This article gives an overview of different methods and reason for encapsulation. The advantages and disadvantages of micro and nano encapsulation technology were also clearly mentioned in this paper.

Accounting Information Systems in Public Sector towards Blockchain Technology Application: The Role of Accountants’ Emotional Intelligence in the Digital Age

2021 ◽  
Vol 12 (1) ◽  
pp. 73-94
Author(s):  
Pham Quang Huy ◽  
Vu Kien Phuc
Keyword(s):  
Emotional Intelligence ◽  
Public Sector ◽  
New Technology ◽  
Accounting Information ◽  
Accounting Information System ◽  
Accounting Information Systems ◽  
Technology Application ◽  
Public Sector Organization ◽  
Blockchain Technology ◽  
The Impact

Abstract This research ferreted out to inspect the interconnection between emotional intelligence (EI), Blockchain technology application (BLO) and the effectiveness of Accounting information system (AIS). Survey-based data obtained from 412 respondents were applied to validate the model hypotheses. Building on the statistical analysis with the support of SPSS 25.0 and SMART- PLS (partial least squares) 3.2.8 software package, the model results inferred the impact of EI on BLO. Besides, the outputs of the study accentuated on the importance of BLO on the effectiveness of AIS. These significant additions will optimistically inspire other scholars to carry on exploring the relationship between EI and BLO in enhancing the effectiveness of AIS in research settings as well as in explaining the results. On the other hand, taking these results into consideration could promote much better solutions for issues relevant to EI and new technology application among public sector organization (PSO) in term of increasing the performance of AIS.

ECONOMIC THEORIES OF COMPETITION, WHICH DETERMINE THE CONDITIONS AND FACTORS OF FORMATION OF TECHNOLOGICAL COMPETITIVENESS OF THE NATIONAL ECONOMY

2021 ◽  
Vol 296 (4) ◽  
pp. 100-104
Author(s):  
Yaroslav BEREZIVSKYI ◽  
Keyword(s):  
National Economy ◽  
Technology Implementation ◽  
Competitive Advantages ◽  
Economic Agents ◽  
Economic Theories ◽  
Intellectual Resource ◽  
Wide Range ◽  
Innovation And Technology ◽  
The Difference ◽  
Technological Competitiveness

A significant number of scientific economic theories have been identified, which substantiate the essential characteristics of the technological competitiveness of the national economy. The difference between each of the theories is due to the evolution of economic development, conditions and factors of formation, as well as directions and means (tools) to ensure the technological competitiveness of the national economy. The conditions and factors of formation of technological competitiveness of the national economy according to economic theories of competition – blue ocean, global advance of competitors, competitive advantages, cyclical development of economy, neoliberalism, structuring are allocated. In each of the theories of competition as their historical evolution, the technological competitiveness of the economy was considered in the context of access and ability to effectively use technological resources, the formation of the market of innovation and technology, implementation of state policy to stimulate innovation. Taking into account theories of competition allows to clarify the important characteristics of technological competitiveness of the national economy, which relate to determining the influence of society, state, market environment, globalization and informatization on the creation and implementation of technologies in economic processes, economic competitiveness. Analysis of the evolution of scientific views shows the high intensity of changes in the field of competition and provides a wide range of conditions and factors for the formation of technological competitiveness, the development of economic agents. Accordingly, the lack of opportunities for technological and innovative development of national producers should be regarded as the main threat to the competitiveness of the economy. These are market, infrastructural, technological, innovative, intellectual, resource and other trends, in the context of which it becomes possible to effectively use competitive opportunities.

Unlocking Idle Production in an Offshore Sandstone Oil Field With Gas Hydrate Issues

2021 ◽  
Author(s):  
Babalola Daramola
Keyword(s):  
Gas Hydrate ◽  
Oil Production ◽  
Oil Field ◽  
Third Party ◽  
Flow Assurance ◽  
Well Testing ◽  
Production Wells ◽  
Oil Flow ◽  
Offshore Oil ◽  
Production Losses

Abstract This publication presents how an oil asset unlocked idle production after numerous production upsets and a gas hydrate blockage. It also uses economics to justify facilities enhancement projects for flow assurance. Field F is an offshore oil field with eight subsea wells tied back to a third party FPSO vessel. Field F was shut down for turnaround maintenance in 2015. After the field was brought back online, one of the production wells (F5) failed to flow. An evaluation of the reservoir, well, and facilities data suggested that there was a gas hydrate blockage in the subsea pipeline between the well head and the FPSO vessel. A subsea intervention vessel was then hired to execute a pipeline clean-out operation, which removed the gas hydrate, and restored F5 well oil production. To minimise oil production losses due to flow assurance issues, the asset team evaluated the viability of installing a test pipeline and a second methanol umbilical as facilities enhancement projects. The pipeline clean-out operation delivered 5400 barrels of oil per day production to the asset. The feasibility study suggested that installing a second methanol umbilical and a test pipeline are economically attractive. It is recommended that the new methanol umbilical is installed to guarantee oil flow from F5 and future infill production wells. The test pipeline can be used to clean up new wells, to induce low pressure wells, and for well testing, well sampling, water salinity evaluation, tracer evaluation, and production optimisation. This paper presents production upset diagnosis and remediation steps actioned in a producing oil field, and aids the justification of methanol umbilical capacity upgrade and test pipeline installations as facilities enhancement projects. It also indicates that gas hydrate blockage can be prevented by providing adequate methanol umbilical capacity for timely dosing of oil production wells.

scholarly journals Hard dental tissue minimal-invasive preparation using contemporary polymer rotating instruments and laser

2014 ◽  
Vol 142 (5-6) ◽  
pp. 365-370 ◽  
Author(s):  
Milos Beloica ◽  
Zoran Vulicevic ◽  
Zoran Mandinic ◽  
Ivana Radovic ◽  
Olivera Jovicic ◽  
...  
Keyword(s):  
New Technology ◽  
Dental Materials ◽  
Pediatric Dentistry ◽  
Minimal Invasive ◽  
Dental Tissue ◽  
Cavity Preparation ◽  
Tooth Structure ◽  
Dental Tissues ◽  
The Difference ◽  
Preparation Techniques

Goal of contemporary dentistry is to decrease the patient?s discomfort during treatment. Dentists aim to achieve maximum with the newly developed dental materials as well as with new cavity preparation techniques in the shortest time span. Since the development of the first constructed borer (drilling machine) for caries removal, the preparation techniques have considerably changed. The progress of dental materials as well as the cavity preparation techniques has led us to contemporary carbide tungsten and diamond borers that are used with obligatory water cooling. The innovation within this field represents newly developed polymer borers that can detect the difference between carious lesions and healthy tooth structure. In this way the cavity preparation may be performed without damaging dental healthy tissue. This is possible owing to their hardness which is lower than the hardness of intact dentin. Polymer borer preparation is painless with less vibration, while the increase in temperature is negligible. Lasers have been used in clinical dentistry since 1980s so it can be said that they represent a new technology. The function of lasers is based on ablation which requires water. Erbium lasers have shown the highest potential with their ability to produce effective ablation of hard dental tissues. Laser application in dentistry requires special training as well as some protective measures. Laser advantages, compared to traditional preparation techniques, involve the absence of vibration, painless preparation, possibility of preparation without anesthetic and easier patient?s adjustment to dental intervention which is of importance, especially in pediatric dentistry.

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