Ensuring Electrostatic Spark Safety for the Use of Fiberglass in the Process Pipelines, Apparatus, and Equipment

The number of the insulating materials, including fiberglass products, are widely used in the construction, industry, oil and gas facilities, agro-industrial complex, transport, and defense. When using fiberglass, like some other insulating materials, it is possible to encounter their destruction and perforation, followed by a transition to the source of double-sided corona effect. Sliding spark discharges of static electricity, capable of igniting a combustible or explosive environment, are also likely to occur. The formation of such discharges depends primarily on the electrostatic and electrical strength properties of the used materials. These parameters should be used when assessing the most dangerous consequences of the fiberglass application in the process pipelines, apparatus, and equipment under the conditions of electrification processes. Comparison of the electrostatic and electrical strength properties of the corona-forming air layer in the electrization processes with the similar indicators of non-conductive structural materials is the main criterion that determines the possibility of their perforation and the occurrence of spontaneous sliding spark discharges. Electrostatic intrinsic safety should be ensured by eliminating static electricity discharges that are capable to become the flammable substances source of ignition (materials, mixtures, products). Sliding sparks can be eliminated by managing the electrostatic load. But at the same time, the hazard of ignition by discharges would remain if they could occur. When replacing the metal element (the wall of an apparatus or vessel) electrified by a liquid (technological medium), a product made of an insulating material, including fiberglass, with similar geometric, technical, and operational parameters, it is possible to maintain the efficient protection of the metal structure by means of its grounding.

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Drilling Rate of Penetration Prediction of High-Angled Wells Using Artificial Neural Networks

Journal of Energy Resources Technology ◽

10.1115/1.4043699 ◽

2019 ◽

Vol 141 (11) ◽

Cited By ~ 6

Author(s):

Ahmed K. Abbas ◽

Salih Rushdi ◽

Mortadha Alsaba ◽

Mohammed F. Al Dushaishi

Keyword(s):

Neural Networks ◽

Artificial Neural Networks ◽

Oil And Gas ◽

Complex Problem ◽

Real Field ◽

Operational Parameters ◽

Rate Of Penetration ◽

Weight On Bit ◽

Artificial Neural ◽

Deviated Wells

Predicting the rate of penetration (ROP) is a significant factor in drilling optimization and minimizing expensive drilling costs. However, due to the geological uncertainty and many uncontrolled operational parameters influencing the ROP, its prediction is still a complex problem for the oil and gas industries. In the present study, a reliable computational approach for the prediction of ROP is proposed. First, fscaret package in a R environment was implemented to find out the importance and ranking of the inputs’ parameters. According to the feature ranking process, out of the 25 variables studied, 19 variables had the highest impact on ROP based on their ranges within this dataset. Second, a new model that is able to predict the ROP using real field data, which is based on artificial neural networks (ANNs), was developed. In order to gain a deeper understanding of the relationships between input parameters and ROP, this model was used to check the effect of the weight on bit (WOB), rotation per minute (rpm), and flow rate (FR). Finally, the simulation results of three deviated wells showed an acceptable representation of the physical process, with reasonable predicted ROP values. The main contribution of this research as compared to previous studies is that it investigates the influence of well trajectory (azimuth and inclination) and mechanical earth modeling parameters on the ROP for high-angled wells. The major advantage of the present study is optimizing the drilling parameters, predicting the proper penetration rate, estimating the drilling time of the deviated wells, and eventually reducing the drilling cost for future wells.

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Influence of climate warming on the strength characteristics of ice in the Ob Bay

Journal Ice and Snow ◽

10.15356/2076-6734-2019-4-409 ◽

2019 ◽

Vol 59 (4) ◽

pp. 539-545

Author(s):

O. M. Andreev ◽

D. V. Drabenko ◽

R. A. Vinogradov ◽

E. U. Orlova

Keyword(s):

Climate Warming ◽

Oil And Gas ◽

Strength Properties ◽

Water Area ◽

Strength Characteristics ◽

Ice Thickness ◽

Empirical Formulas ◽

The Russian Federation ◽

Oil And Gas Companies ◽

Further Development

The article presents results of investigation of the climate warming effects in the northern polar region of the Earth, in particular on some characteristics of ice in the northern part of the Ob Bay (the area of the most active economic activity of the Russian Federation in the last decade). It is determined that over the past 40 years, morphometric and strength characteristics of ice have significantly changed. Estimates of ice thickness obtained using simple empirical formulas (depending on the sum of the degree-days of frost) show that the ice thickness decreased here by an average of 10 15%. The strength characteristics of ice were analyzed for two periods: the maximum strength of ice (for this area it is March) and the maximum development of ice thickness (usually it is May). It was found that the strength properties of ice (bending and compression) for both periods decreased by 10-12%. Thus, in recent decades, under the influence of climate warming in the Ob Bay, the thickness and strength of the ice cover have significantly decreased. This circumstance will be favorable for further development of the considered water area by Russian oil and gas companies.

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MANUFACTURING INDUSTRY TECHNOLOGIZATION WITHIN PRIORITIES OF THE SCIENTIFIC AND TECHNICAL COMPLEX DEVELOPMENT IN RUSSIAN FEDERATION

Business Strategies ◽

10.17747/2311-7184-2018-9-20-23 ◽

2018 ◽

pp. 20-23

Author(s):

A. E. Miller

Keyword(s):

Large Scale ◽

Manufacturing Industry ◽

Oil And Gas ◽

Work Place ◽

High Tech ◽

Industrial Complex ◽

Skilled Workers ◽

Field Development ◽

Research Areas ◽

Technical Complex

The development of the global economic system leads to the fact that modern production is becoming more technological and capital intensive, requires highly skilled labor and cannot provide work places for a large number of low-skilled workers. In addition, each high-tech work place creates several additional work places in other industries. Many technologies that were first used in industrial production were later used in other industries, increasing their efficiency and competitiveness and thus ensuring the overall economic development. Scientific research and development for the industry are becoming more transdisciplinary; hybrid research areas as well as cross-disciplinary technologies appear. The main problem is that the Russian industrial complex is not ready for unconditional acceptance of these global technological challenges for the most part organizationally, not economically. We need a simple and well-defined organizational and economic mechanism of technologizing of domestic production. Despite the current economic difficulties, there are enough sources of such technological transition funding. They are: entry into the large-scale investment and infrastructure projects on a national scale; participation in projects of field development of the leading oil and gas companies; the programmes of innovative development and R&D programmes of state companies, industrial state programmes; subsidies and grants of development institutions; private funds of enterprises, etc.

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Limitation of test sample arrangements according to IEC 60243-1: Electrical strength of insulating materials - Test methods

2018 IEEE 2nd International Conference on Dielectrics (ICD) ◽

10.1109/icd.2018.8468540 ◽

2018 ◽

Author(s):

Sebastian Wels ◽

Jens Obst ◽

Albert Claudi ◽

Bianca Bottge ◽

Rico Bernhardt ◽

...

Keyword(s):

Test Sample ◽

Test Methods ◽

Electrical Strength ◽

Insulating Materials

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Comprehensive experimental investigation of hole cleaning performance in horizontal wells including the effects of drillstring eccentricity, pipe rotation and cuttings size

Journal of Energy Resources Technology ◽

10.1115/1.4052102 ◽

2021 ◽

pp. 1-11

Author(s):

Ahmed K. Abbas ◽

Mortadha T. Alsaba ◽

Mohammed F. Al Dushaishi

Keyword(s):

Flow Rate ◽

Oil And Gas ◽

Drilling Fluid ◽

Drill Pipe ◽

Real Field ◽

Operational Parameters ◽

Cleaning Efficiency ◽

Hole Cleaning ◽

Cleaning Performance ◽

Pipe Rotation

Abstract Extended reach (ERD) wells with a horizontal and highly deviated section are widely applied in the oil and gas industry because they provide higher drainage area than vertical wells; and hence, increase the productivity or injectivity of the well. Among many issues encountered in a complex well trajectory, poor hole cleaning is the most common problem, which occurs mainly in the deviated and horizontal section of oil and gas wells. There are significant parameters that have a serious impact on hole cleaning performance in high-angle and horizontal sections. These include flow rate, rheology and density of the drilling fluid, drillstring eccentricity, pipe rotation, and cuttings size. It has been recognized that the action of most of these parameters to transport drilled cuttings is constantly a point of controversy among oilfield engineers. In the present study, extensive experiments were conducted in an advanced purpose-built flow rig to identify the main parameters affecting on circulate the cuttings out of the test section in a horizontal position. The flow-loop simulator has been designed to allow easy variation of operational parameters in terms of flow rate, mud density, drillstring eccentricity, pipe rotation, and cuttings size. In addition, the study covers the impacts of laminar, transition, and turbulent flow regimes. The goal of such variation in the operational conditions is to simulate real field situations. The results have shown that drill string rotation and flow rate were the operational parameters with the highest positive influence on the cuttings transports process. In contrast, drill pipe eccentricity has a negative influence on cuttings removal efficiency. The cuttings transportation performance is further improved by pipe rotation at different levels of eccentricity, especially at fully eccentric annuli. It was also shown that larger cuttings appeared to be easier to remove in a horizontal annulus than smaller ones. The experimental results would provide a more in-depth understanding of the relationship between drilling operation parameters and hole cleaning efficiency in ERD operations. This will help the drilling teams to realize what action is better to take for efficient cutting transportation.

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Super Electrical Insulating Materials Based on Honeycomb‐Inspired Nanostructure: High Electrical Strength and Low Permittivity and Dielectric Loss

Advanced Electronic Materials ◽

10.1002/aelm.202100979 ◽

2021 ◽

pp. 2100979

Author(s):

Potao Sun ◽

Chuang Li ◽

Wenxia Sima ◽

Tao Yuan ◽

Ming Yang ◽

...

Keyword(s):

Dielectric Loss ◽

Electrical Strength ◽

Insulating Materials ◽

Low Permittivity

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FORUM «TERRITORY OF NDT – 2019»

Kontrol Diagnostika ◽

10.14489/td.2019.06.pp.004-016 ◽

2019 ◽

pp. 4-16 ◽

Cited By ~ 1

Author(s):

B. V. Artemiev ◽

P. E. Kleyzer ◽

V. I. Matveev

Keyword(s):

Oil And Gas ◽

Machine Building ◽

High Tech ◽

Technical Diagnostics ◽

Industrial Complex ◽

Destructive Testing ◽

Research Activities ◽

Space Rocket ◽

Business Program ◽

Non Destructive

The article provides a brief information overview of the events of the Forum “Territory NDT – 2019”, which was held from 4 to March 6, 2019 in the central exhibition complex “Expocenter” in Moscow (Russia). Exhibition of instruments and means of NDT and TD was accompanied by a business program. Within the framework of the Forum, round tables were held on topical problems of nondestructive testing and technical diagnostics. The basis of the Forum was an exhibition. The range of equipment demonstrated at the exhibition changes every year, in addition to equipment for non-destructive testing and technical diagnostics, modern test and measurement, testing and analytical equipment begins to appear on the exhibitors' stands. This year, it was felt the orientation towards high-tech solutions for the aviation and space-rocket industry, military-industrial complex, machine-building, metallurgy, oil and gas and other industries. Traditionally, there was a competition of specialists in NDT. The business program in general was aimed at supporting research activities. Among the topics of the round tables that worked in parallel in the two rooms, the greatest interest was caused by: “Non-destructive control in the space industry and the defense industry complex”, “Technical diagnostics in nuclear energy”, “Standardization and metrological support for NDT and TD.”

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