scholarly journals Design of Microwave Antenna Array for Imaging of Multiphase Flows in Polypropylene Pipes

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Khaldoun Alkhalifeh ◽  
Hatem Rmili ◽  
Bandar Hakim ◽  
Nebras Sobahi ◽  
Youssef AL-Turki
Keyword(s):  
Crude Oil ◽  
Oil And Gas ◽  
Gamma Ray ◽  
Oil And Gas Industry ◽  
Optimal Number ◽  
Phase Ratio ◽  
Microwave Antenna ◽  
Gas Industry ◽  
Control Fluid ◽  
Microwave Techniques

The oil and gas industry requires accurate sensors to control fluid flow in pipelines during the production process from horizontal and near horizontal wells. The extracted crude oil is usually a multiphase mixture of oil, water, and gas, and the accurate measurement of the ratio of each multiphase within the pipeline is an important parameter to manage wells efficiently by maximizing the hydrocarbons that can be extracted. Various methods have been developed for determining the phase ratio including mechanical, optical, X-ray or gamma ray, ultrasound, nuclear magnetic resonance (NMR), and rarely microwave techniques. However, these methods do not permit the knowledge of the real-time evolution of the phase ratio and are less precise. Here, we propose and develop by simulation two microwave systems, in horizontal and vertical polarizations, to choose the optimal configuration for crude pipeline imaging applications. First, the pipeline containing crude oil was modeled and its thermal and dielectric properties are proposed. Then, the antennas array performances were optimized and assembled to the pipeline. Different numbers of antenna elements were successfully investigated using CST simulation in both vertical and horizontal polarizations to find the optimal number of antenna elements for the pipeline applications.

When Metals and Microbes Meet: Preventing Microbial Corrosion in Crude Oil Transmission Pipelines

2020 ◽  
Author(s):  
Lisa M. Gieg ◽  
Mohita Sharma ◽  
Trevor Place ◽  
Jennifer Sargent ◽  
Yin Shen
Keyword(s):  
Crude Oil ◽  
Oil And Gas ◽  
Combined Treatment ◽  
Oil And Gas Industry ◽  
Test Methods ◽  
Microbial Corrosion ◽  
Gas Industry ◽  
Chemical Treatments ◽  
Transmission Pipeline ◽  
Transmission Pipelines

Abstract Corrosion of carbon steel infrastructure in the oil and gas industry can occur via a variety of chemical, physical, and/or microbiological mechanisms. Although microbial corrosion is known to lead to infrastructure failure in many upstream and downstream operations, predicting when and how microorganisms attack metal surfaces remains a challenge. In crude oil transmission pipelines, a kind of aggressive corrosion known as under deposit corrosion (UDC) can occur, wherein mixtures of solids (sands, clays, inorganic minerals), water, oily hydrocarbons, and microorganisms form discreet, (bio)corrosive sludges on the metal surface. To prevent UDC, operators will use physical cleaning methods (e.g., pigging) combined with chemical treatments such as biocides, corrosion inhibitors, and/or biodispersants. As such, it necessary to evaluate the efficacy of these treatments in preventing UDC by monitoring the sludge characteristics and the microorganisms that are potentially involved in the corrosion process. The efficacies of a biocide, corrosion inhibitor, and biodispersant being used to prevent microbial corrosion in a crude oil transmission pipeline were evaluated. A combination of various microbiological analyses and corrosivity tests were performed using sludge samples collected during pigging operations. The results indicated that the combined treatment using inhibitor, biocide 1 and biodispersant was the most effective in preventing metal damage, and both growth-based and Next-Generation Sequencing approaches provided value towards understanding the effects of the chemical treatments. The efficacy of a different biocide (#2) could be discriminated using these test methods. The results of this study demonstrate the importance of considering and monitoring for microbial corrosion of crucial metal infrastructure in the oil and gas industry, and the value of combining multiple lines of evidence to evaluate the performance of different chemical treatment scenarios.

scholarly journals Utah

2020 ◽  
Vol 6 (3) ◽  
Author(s):  
Mark Burghardt ◽  
Gage Hart Zobell
Keyword(s):  
Crude Oil ◽  
Oil And Gas ◽  
Oil Production ◽  
Oil And Gas Industry ◽  
Legal Framework ◽  
Gas Production ◽  
Mandatory Reporting ◽  
Gas Industry ◽  
Oil And Gas Production ◽  
Crude Oil Production

Oil and gas production continues to be an important sector of Utah’s economy. Following a 25% loss in production between 2014 and 2015, Utah’s production continues to slowly rebound. Crude oil production in 2019 appears to be slightly ahead of 2018 production. Monthly production averages slightly over three million barrels, placing Utah among the top ten states in crude oil production. Along with the continuing increase in production, the state’s legal framework governing oil and gas continues to develop. This Article examines recent changes in Utah statutes and regulations along with new case law developments involving the oil and gas industry. In particular, this Article discusses a recent federal bankruptcy decision involving midstream agreements, the revision to a Utah statute that now requires mandatory reporting of unclaimed mineral interests, and recent revisions to Utah’s oil and gas regulations.

scholarly journals MECHANISMS AND INSTRUMENTS FOR ENSURING ECONOMIC SECURITY OF OIL AND PETROCHEMICAL ENTERPRISES

2020 ◽  
Vol 8 (1) ◽  
pp. 126-130
Author(s):  
Camila Weisman
Keyword(s):  
Crude Oil ◽  
Oil And Gas ◽  
Raw Materials ◽  
Oil Production ◽  
Oil And Gas Industry ◽  
Economic Security ◽  
Gas Industry ◽  
Important Direction ◽  
The Russian Federation ◽  
Oil And Gas Sector

The oil and gas industry remains for Russia the most important source of income, a strategic industry. According to official figures of the Ministry of Finance of the Russian Federation, income from the oil and gas sector, according to the results of 2019, is 40% of the total budget of the country. A large volume of crude oil and gas is exported from the country. The tax burden on raw materials reaches up to 60% of the initial cost, which makes oil production at new fields extremely unprofitable. The most important direction for the country is the transition from a strategy for the sale of crude oil products to refined ones, which have an additional cost. The article discusses the features of domestic oil production, analyzes the reasons for overpriced in comparison with competitive raw materials from other oil producing leader countries. The strategy of ensuring the economic security of the industry is noted, the main tools are listed and the mechanisms for ensuring the economic security of petrochemical industry enterprises are presented.

scholarly journals KEY ISSUES OF ACCOUNTING FIXED ASSETS MANAGEMENT OF OIL AND GAS ENTERPRISES: ANALYSIS OF FEATURES, COMPOSITION AND VALUATION

2019 ◽  
pp. 76-87
Author(s):  
Sofia KAFKA
Keyword(s):  
Natural Gas ◽  
Crude Oil ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Fair Value ◽  
Economic Benefits ◽  
Gas Industry ◽  
Gas Drilling ◽  
Fixed Assets ◽  
Key Issues

The article deals with the key issues concerning the system of security of fixed assets at the enterprises of the oil and gas industry. The purpose of the article is to investigate the fixed assets features and composition at the the enterprises of oil and gas industry, to determine the approaches to their assessment at the stage of their receipt by the enterprise. The state, dynamics of value and the degree of depreciation of fixed assets in Ukraine for the year 2017 have been analyzed, their features have been distinguished at the enterprises of different branches of the economy. To ensure the effective operation of the enterprises of the oil and gas industry, significant assets are required, and the results of their activities to a large extent depend on the availability and condition of fixed assets that ensure economic sustainability of economic entities. Oil and gas companies include pipelines and related equipment in fixed assets, oil and gas assets, machinery and equipment, buildings, buffer gas, drilling and reconnaissance equipment and other fixed assets. Among the assets of NJSC "NAFTOGAZ OF UKRAINE" for the year 2017, non-current assets occupied 86% of the total assets of the company, of which 94% were fixed assets, what determines the reliability of their accounting as an important element of effective management of enterprises. The dynamics of value and composition of fixed assets of enterprises of the oil and gas industry of Ukraine for 2016-2017 have been determined according to separate economic segments. The cost of fixed assets of NJSC "NAFTOGAZ OF UKRAINE" as of December 31, 2017 amounted to UAH 491 482 million, respectively, according to economic segments, it is structured in such a way that their largest share is concentrated in the system of transportation and distribution of natural gas - almost 48%, for storage of natural gas - 34%, production and sale of natural gas - 12%, and the rest belongs to the economic activities related to oil: the production of crude oil and gas condensate, transportation of crude oil. The composition of fixed assets of extractive enterprises differs from their composition in refineries. Industrial features of mining industry with significant volumes of work related to the disclosure of layers of minerals are characteristic to chemical production with a significant cost of equipment. The main approaches to the evaluation of fixed assets objects at the stage of their entrance to the enterprise have been investigated. The reliability of the accounting information on fixed assets depends on their assessment. When they are received, they are valued at their original cost, that is, by the amount of cash paid or their equivalents or fair value, another form of indemnity granted to obtain the asset at the time of its acquisition or creation, or, if accepted, the amount that is distributed to that asset in the original recognized in accordance with the specific requirements of other IFRSs. After recognition, the entity should choose either a cost model or a revaluation model in its accounting policies and should apply this policy to the entire group of fixed assets. A cessation of recognition occurs after the release of an object or when it does not expect future economic benefits from its use or disposal. In this case, it is recognized as profit or loss.

Rigorous Integrated Evolutionary Workflow for Optimal Exploitation of Unconventional Gas Assets

2017 ◽  
Vol 6 (1) ◽  
pp. 101-122 ◽  
Author(s):  
Tatyana Plaksina ◽  
Eduardo Gildin
Keyword(s):  
Oil And Gas ◽  
Optimal Solution ◽  
Oil And Gas Industry ◽  
Global Optimum ◽  
Optimal Number ◽  
Test Cases ◽  
Unconventional Gas ◽  
Gas Industry ◽  
Practical Applications ◽  
Mixed Optimization

Applications of stochastic evolutionary algorithms in engineering are gaining more attention in practical applications in the oil and gas industry. An important factor to consider when implementing stochastic algorithms is its ability to find the global optimum efficiently. In this study the authors formulate, implement, and test a genetic algorithm with strong elitism to solve a critical problem in the upstream oil industry: how to develop economically an unconventional gas asset. This problem involves finding the optimal number of horizontal wells, the number of transverse hydraulic fracture stages along them, and stage half-length. The described problem is inherently discrete or mixed optimization problem for which the authors develop a conceptually new evolutionary integrated framework that addresses all production design questions. They outline the range of applicability of their workflow and provide ample test cases and results. Their rigorous formulation performs well for a given problem statement and finds the optimal solution that is consistent with the industry accepted optimum.

scholarly journals Health Impact of Occupational Exposure to Noise – A Mixed Method Assessment

2020 ◽  
pp. 19-24
Author(s):  
Kennedy A. Osakwe
Keyword(s):  
Crude Oil ◽  
Gas Flow ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Health Impact ◽  
Sub Saharan Africa ◽  
Noise Levels ◽  
Gas Industry ◽  
Crude Oil Production ◽  
Sub Saharan

Introduction: Globally, activities in the oil and gas industry are accomplished with the aid of machinery with the potentials to generate high noise levels above 85 dB(A). A visit to a typical crude oil production facility in Sub-Saharan Africa(SSA) revealed noise-producing machinery such as generators, compressors, pumps, fluid, and gas flow, to mention but a few. This study assessed the health risks of exposure to noise in an offshore crude oil installation in Nigeria.

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