scholarly journals MULTI-FACTORIAL MATHEMATICAL STATISTICAL SIMULATION OF OIL PRODUCTION

Author(s):  
Gunay Vagifgiz

Oil and gas deposits differ depending on the bed size, geological-physical development conditions, oil quality and geographic location. Including them in the development is connected with various investments to the main constructions; subsistence and current material expenses also differ. Therefore, from the point of view of economic efficiency, oil and gas deposits are not equal. Location of oil and industry leads to the problem of the sequence of putting of various deposits into operation and their development rate. The sizes of oil and gas beds and available oil and gas reserves in them give reason to say which of these beds will be put into operation in the near future. Completion and development of large scale deposits require less investments compared to small scale deposits. Such deposits are usually highly productive, expenses per a production unit in them is small. All these determined importance of the use of reserves in large scale deposits in the first turn.

2008 ◽  
Vol 2008 ◽  
pp. 1-9 ◽  
Author(s):  
Peter Quax ◽  
Jeroen Dierckx ◽  
Bart Cornelissen ◽  
Wim Lamotte

The explosive growth of the number of applications based on networked virtual environment technology, both games and virtual communities, shows that these types of applications have become commonplace in a short period of time. However, from a research point of view, the inherent weaknesses in their architectures are quickly exposed. The Architecture for Large-Scale Virtual Interactive Communities (ALVICs) was originally developed to serve as a generic framework to deploy networked virtual environment applications on the Internet. While it has been shown to effectively scale to the numbers originally put forward, our findings have shown that, on a real-life network, such as the Internet, several drawbacks will not be overcome in the near future. It is, therefore, that we have recently started with the development of ALVIC-NG, which, while incorporating the findings from our previous research, makes several improvements on the original version, making it suitable for deployment on the Internet as it exists today.


2013 ◽  
Vol 421 ◽  
pp. 917-921
Author(s):  
De Xun Liu ◽  
Shu Heng Tang ◽  
Hong Yan Wang ◽  
Qun Zhao

Affected by the constant development of global economy and the imbalance in distribution of conventional oil and gas, oil and gas resources can no longer meet the demand in many countries. Development of unconventional oil and gas has begun to take shape. Shale gas and tight oil become the focus of global attention. Unconventional oil and gas resources are relatively abundant in China. Preliminary results have been achieved in the development of shale gas. Tight oil has been developed in small scale, and the main technologies are maturing gradually. Yet we face many challenges. Low in work degree, resources remain uncertain. Environmental capacity is limited, and large scale batch jobs will confront with difficulties.


Author(s):  
M. T. Rahmati ◽  
G. Alfano ◽  
H. Bahai

Flexible risers which are used for transporting oil and gas between the seabed and surface in ultra-deep waters have a very complex internal structure. Therefore, accurate modeling of their behaviour is a great challenge for the oil and gas industry. Constitutive laws based on beam models which allow the large-scale dynamics of pipes to be related to the behaviour of its internal components can be used for multi-scale analysis of flexible risers. An integral part of these models is the small-scale FE model chosen and the detailed implementation of the boundary conditions. The small scale FE analyses are typically carried out on models of up to a few meters length. The computational requirements of these methods limit their applications for only multi-scale structural analysis based on a sequential approach. For nested multi-scale approaches (i.e. the so called FE2 method) and for multi-scale multi-physic analyses, e.g. fluid structure interaction modeling of flexible risers, more efficient methods are required. The emphasis of the present work is on a highly efficient small-scale modelling method for flexible risers. By applying periodic boundary conditions, only a small fraction of a flexible pipe is used for detailed analysis. The computational model is firstly described. Then, the capability of the method in capturing the detailed nonlinear effects and the great advantage in terms of significant CPU time saving entailed by this method are demonstrated. For proof of concept the approach is applied on a simplified 3-layer pipe made of inner and outer polymer layers and an intermediate armour layer made of 40 steel tendons.


2022 ◽  
Vol 2161 (1) ◽  
pp. 012001
Author(s):  
Harshit Sharma ◽  
G Sumathi

Abstract The Covid -19 is arguably the biggest pandemic in history and there are a lot of challenges that must be dealt with. One of the biggest challenges post Covid-19 is to tackle quality control challenges. This research paper discusses some of these challenges and solutions using an integrated internet of things (IoT) and internet of protocols (IoP) based approach and further showing its implementation in the industry world and hence, proving to be a solution for damage assessment. With the help of IoT- enabled quality control system, six-sigma rule is also analysed. Post Covid crisis, it is important for every institution to gain back customer trust so quality of materials should be maintained and IoT enables us to do the same. The unification of industrial IoT (IIoT) and industry 4.0 is also discussed as it leads us to understand that this unification is the next evolution of smart manufacturing and digital technologies. This methodology can lead us to accelerated innovation in applications for overcoming the eventual challenges post Covid in the near future. Also, small-scale/large-scale companies making use of the above research methodology can adhere to six-sigma criterion.


Author(s):  
Bris ◽  
Bendito

The phenomenon named kodokushi, meaning death alone without the care or company of anyone inside temporary housing, appeared after the Kobe earthquake in Japan in 1995 with some 250 cases. This paper analyzes the evolution of Japanese temporary houses—to attempt to prevent the problem of kodokushi—from the point of view of management, how services and activities are organized, and design. We will use case studies as our methodological tool, analyzing the responses in 1995 Kobe (50,000 THs), 2004 Chūetsu (3000 THs), 2011 Tōhoku (50,000 THs), and 2016 Kumamoto (4000 THs). This article shows how the Japanese THAs follow a single design that has undergone very little variation in the last 25 years, a design which promotes the social isolation of their residents, making recovery—from the psychological perspective—and helping the most vulnerable members of society, more difficult. In small scale disasters (Chūetsu) applying organization and management measures was able to correct the problems caused by design and there were no cases of kodokushi: in large-scale disasters (Tōhoku), however, the difficulties to implement the same measures resulted in the reappearance of new cases at rates similar to Kobe’s. Our main conclusion is that the design of Japanese THAs must be reconsidered and changed to respond to the real needs of the most vulnerable groups.


Author(s):  
A.V. Babkin ◽  
N.V. Gerasimov ◽  
S.V. Ladov

The problem of certification of shaped-charge perforators appear to be very important in oil and gas production. The paper considers five aspects of the problem. First, it is a physical aspect, which means the problem is viewed from the point of view of the physics of a cumulative explosion; the second aspect is a methodological one, which implies the most desirable, permissible, unacceptable methods of certification and qualification; the next aspect is economic, it focuses on the economy on a large scale, allowing a possible loss in a small one. Perhaps, there are things that are currently more important than the most correct physical considerations and the most perfect methods, so technical and political aspects arise. The final aspect is an organizational one which implies a rational division of powers of government departments. The most important and science-intensive aspect is the physical one, as it is associated with the design, construction, and operation of shaped charges of perforators, and this is the main focus of the paper. The paper carefully analyzes the formation, movement in free space, and action on the combined obstacle: steel — concrete — rock of monolithic and powder cumulative jets from metal and composite materials. Moreover, the study comparatively assesses the penetrating action of shaped charges of perforators according to various methods, both domestic and foreign, and assesses economic, technical, political, and organizational factors in the development of the shaped charges certification procedure. Finally, the study gives recommendations for carrying out certification and qualification tests of shaped charges of perforators in Russia.


Author(s):  
Rena Upitis

This Too Is Music guides and motivates teachers to foster classroom conditions that enable elementary students to thrive as improvisers, critical listeners, performers, and composers. Using anecdotes and illustrated with musical examples, the book explores how these aspects of music making are intertwined and quells any doubts teachers may have regarding their abilities to create an environment where children can improvise, dance, compose, and notate their musical offerings. While the book acknowledges the importance of traditional approaches to teaching notation and performance, its emphasis is on the student’s point of view, illustrating how young musicians can learn when their musical ideas are honored and celebrated. Various teaching ideas are presented; some are exploratory in nature, and others involve direct instruction. Regardless of their nature, all of the activities arise from research on children’s musical development in general and their development of notational systems in particular, and they have been tested in multiple elementary-classroom environments and preservice settings. The activities center on engaging with music through movement, performing, singing, improvising, composing, developing notational skills, and appealing to children across subjects, including language, drama, and mathematics. Activities encompass both small-scale classroom lessons and large-scale productions. This pedagogy has a timeless quality; even in our digital age, this musical environment appeals to children. The book invites readers to adapt the ideas to their own teaching settings, showing both preservice and established teachers that they can teach music creatively to build community and to inspire all who enter there.


2020 ◽  
Vol 9 (1) ◽  
pp. 82-109
Author(s):  
Asuka Yamaguchi

Abstract In recent years, energy constraints have been discussed from a historical point of view. This study aims at examining the copper industry’s energy use in Japan from the Meiji period to the time of World War I and clarifying the process of, and reasons for, the selection of energy sources. This study considered not only energy use in the large-scale mines but also energy use in the small-scale mines and miners’ homes. As a result, it was clarified that the mines changed into a space that was based on a diverse combination of energy sources, depending on differences in location (access to energy), natural conditions, financial power, the required amount and price of energy, energy use technologies, ore quality, and end product (usage).


Author(s):  
Marek WOSZCZYK ◽  
Józef DZIĘGIELOWSKI ◽  
Paweł ZDANOWSKI ◽  
Andrzej KACZOROWSKI ◽  
Iwona MATUSZEWSKA ◽  
...  

One of the key elements of the PGNiG Group business strategies is the expansion of exploration and production activities outside Poland. Gaining access to foreign deposits allows for the expansion of the potential of own resources and entering foreign markets. Article provides a detailed description of the scope of works carried out by PGNiG SA specialists at licenses located abroad, and provides information of issues related to the geology of individual regions. Operations carried out by PGNiG Upstream International on the Norwegian continental shelf are an example of the mentioned activities. The company operates oil as well as oil and gas deposits (Skarv, Snadd, Morvin, Vale, and soon, also Gina Krog), and carries out exploration works in the vicinity of the operated deposits, as well as in the areas that are less recognized from the geological point of view. Another form of the company activities are its operations in Denmark (South Jutland) and Germany (South Brandenburg) where the research focuses on the Main Dolomite (Ca2) reservoir level that is well-known to the Polish geologists. Two of the largest oil and gas deposits in Poland (BMB and LMG) have been discovered, documented and developed for the production by PGNiG SA at this level. In Pakistan, in turn, PGNiG SA successfully conducts exploration at Kirthar license, located in the Sindh Province, where exploitation of Rehman deposit has recently been launched; the exploitation of the newly discovered Rizq deposit will also be launched in the near future. Operations are complemented by activities in Libya and Egypt. The exploration works conducted in Libya by POGC Libya BV are focused in the Murzuq petroleum basin at concession area no. 113, and are continued despite the announced force majeure state that, in practice, means holding up the field works. PGNiG SA has conducted exploration works at the Bahariya license located in the northern part of the Egyptian Western Desert, however, unsatisfactory results led the company to leave this country.


2015 ◽  
Vol 08 ◽  
pp. 1-25 ◽  
Author(s):  
Robert W. Garnett ◽  
Richard L. Sheffield

An overview of the application of accelerators and accelerator technology in energy is presented. Applications span a broad range of cost, size, and complexity and include large-scale systems requiring high-power or high-energy accelerators to drive subcritical reactors for energy production or waste transmutation, as well as small-scale industrial systems used to improve oil and gas exploration and production. The enabling accelerator technologies will also be reviewed and future directions discussed.


Sign in / Sign up

Export Citation Format

Share Document