Advantages of lean gas for an upstream gas-gathering system

2011 ◽  
Vol 51 (2) ◽  
pp. 735
Author(s):  
Dave Hazle

Offshore lean gas developments are often perceived as being inferior to a wet gas development. In this case study, the advantages of lean gas are shown to be an enabler, making a project viable in an area where many small lean gas accumulations combine to produce a viable development. Through beneficial flow assurance, cheaper and simpler facilities, larger drainage radii and technology applications such as DEH, viability of a development can be demonstrated in an area where smaller discoveries are currently perceived as being stranded.

2018 ◽  
Vol 9 (9) ◽  
pp. 380-386
Author(s):  
Sarah Akintola ◽  
Emmanuel Folorunsho ◽  
Oluwakunle Ogunsakin

Liquid condensation in gas-condensate pipelines in a pronounced phenomenon in long transporting lines because of the composition of the gas which is highly sensitive to variations in temperature and pressure along the length of the pipeline. Hence, there is a resultant liquid accumulation in onshore wet-gas pipelines because of the pipeline profile. This accumulation which is a flow assurance problem can result to pressure loss, slugging and accelerated pipeline corrosion if not properly handled.


2021 ◽  
Author(s):  
Song Wang ◽  
Lawrence Khin Leong Lau ◽  
Wu Jun Tong ◽  
Kun An ◽  
Jiang Nan Duan ◽  
...  

Abstract This paper elucidates the importance of flow assurance transient multiphase modelling to ensure uninterrupted late life productions. This is discussed in details through the case study of shut-in and restart scenarios of a subsea gas well (namely Well A) located in South China Sea region. There were two wells (Well A and Well B) producing steadily prior to asset shut-in, as a requirement for subsea pipeline maintenance works. However, it was found that Well A failed to restart while Well B successfully resumed production after the pipeline maintenance works. Flow assurance team is called in order to understand the root cause of the failed re-start of Well A to avoid similar failure for Well B and other wells in this region. Through failure analysis of Well A, key root cause is identified and associated operating strategy is proposed for use for Well B, which is producing through the same subsea infrastructure. Transient multiphase flow assurance model including subsea Well A, subsea Well B, associated spools, subsea pipeline and subsea riser is developed and fully benchmarked against field data to ensure realistic thermohydraulics representations of the actual asset. Simulation result shows failed restart of Well A and successful restart of Well B, which fully matched with field observations. Further analysis reveals that liquid column accumulated within the wellbore of Well A associates with extra hydrostatic head which caused failed well restart. Through a series of sensitivity analysis, the possibility of successful Well A restart is investigated by manipulating topsides back pressure settings and production flowrates prior to shut-in. These serve as a methodology to systematically analyze such transient scenario and to provide basis for field operating strategy. The analysis and strategy proposed through detailed modelling and simulation serves as valuable guidance for Well B, should shut-in and restart operation is required. This study shows the importance of modelling prior to late life field operations, in order to avoid similar failed well restart, which causes significant production and financial impacts.


Author(s):  
Yowei Kang ◽  
Kenneth C. C. Yang

The global AR, MR, and VR markets will reach USD$40.6 billion in 2019. As a result, digital reality technologies have become a key component of promoting art exhibition and museum industries to the general public around the world. Emerging applications such as ARCHEOGUIDE, ARCO, and 3D-MURALE have allowed museum-goers to access archeological artefacts and sites remotely without physically visiting the museums. Digital reality technologies have therefore been perceived to have the great potential to promote (creative) cultural industry contents, because of the characteristics of these platforms (e.g., interactivity, realism, and visualization). This chapter employs a case study approach to discuss the current state of digital reality technology applications in museums and art exhibitions around the world. The study provides several best practice examples to demonstrate how digital reality technologies have fundamentally transformed the art exhibitions and museums.


2017 ◽  
Vol 143 ◽  
pp. 259-265 ◽  
Author(s):  
Tiago Bortolotto ◽  
Jaqueline da Silva ◽  
Alex Célio Sant’Ana ◽  
Kamila Osowski Tomazi ◽  
Reginaldo Geremias ◽  
...  

2019 ◽  
Vol 53 (01n02) ◽  
pp. 15-27
Author(s):  
NEIL BALLANTYNE

This article reviews the political and ethical dimensions of technology applications in social work by focusing on a descriptive case study. The case study is of an initiative undertaken by the New Zealand government between 2011 and 2015 to develop an algorithm that would allow child protection services to predict future child maltreatment at the point of birth and to pre-empt it before it occurs. The paper explores the new threats to human rights and social justice associated with the rise of algorithmic governance and explores the sources of algorithmic injustice. It also outlines some of the key ethical issues and political challenges associated with algorithmic governance.


2014 ◽  
Author(s):  
Andres Javier Chaustre Ruiz ◽  
John Jairo Ibagon ◽  
Elkin Alberto Leon Ramirez

2020 ◽  
Vol 12 (11) ◽  
pp. 4640 ◽  
Author(s):  
Salinee Santiteerakul ◽  
Apichat Sopadang ◽  
Korrakot Yaibuathet Tippayawong ◽  
Krisana Tamvimol

Sustainable development is of growing importance to the agriculture sector because the current lacking utilization of resources and energy usage, together with the pollution generated from toxic chemicals, cannot continue at present rates. Sustainability in agriculture can be achieved through using less (or no) poisonous chemicals, saving natural resources, and reducing greenhouse gas emissions. Technology applications could help farmers to use proper data in decision-making, which leads to low-input agriculture. This work focuses on the role of smart technology implementation in sustainable agriculture. The effects of smart technology implementation are analyzed by using a case study approach. The results show that the plant factory using intelligence technology enhances sustainability performance by increasing production productivity, product quality, crop per year, resource use efficiency, and food safety, as well as improving employees’ quality of life.


2010 ◽  
Vol 2 (2) ◽  
pp. 10-23
Author(s):  
Aristeidis Meletiou

In these competitive years of continuing change, libraries enrich their services with modern technologies and innovative approaches to satisfy users’ standards. This engagement significantly increases the effects of these new inputs on library budgets as new technology applications demand money and new organization schemes. Consequently, the annual budget has to be increased and difficulties arise due to its efficient allocation. This paper describes a methodology of evaluating offered services by using specific important factors like Users Satisfaction of a Service, Usage, and Cost of this service. Known methods for estimating Costs (ABC method) and estimating Satisfaction (MUSA method) in library fields are used. Also, the multi-criteria method to evaluate a service by correlating the above mentioned factors are used to give the observer the ability to find useful information. Finally, a case study about the evaluation of services using the proposed methodology is presented. The goal of the proposed methodology is to help library decision makers choose the most appropriate services to offer change and improvements according to user needs and allocated budgets.


2018 ◽  
Vol 17 (2) ◽  
pp. 7350-7354
Author(s):  
Gar Al-nabi Ibrahim Mohamed ◽  
Faisal Wahiss Althobiani

The paper presents a case study that investigated the role of modern technology applications in rainfall flooding disasters prevention. The results reported demonstrated that modern technology facilities can be used to derive preventive measures for rainfall flooding disasters. Free of charge application programs and space technology data can be downloaded and used to achieve this purpose. The derived parameters of the hydrological and topographical models can be integrated with the drainage network of the area to ensure the draining of the water and prevent it from backing up and accumulating in the low land areas. An appreciated relief effort had been made by the local governments and non-government organizations related to rainfall flooding disasters across the world. However, it is high time to devote some of this effort to the application of modern technology facilities to tackle these rainfall disasters existing causes and provide future preventive measures.


Author(s):  
Yowei Kang

Digital reality technologies have become a key component of promoting creative and cultural industries in Taiwan. In 2016, Taiwan's Ministry of Culture funded 45 projects to promote creative and cultural industries in this island country. A total of USD$25.6 million dollars have been granted to this project. Among these projects, the applications of virtual reality (VR) and augmented reality (AR) technologies have been found to be the latest trend in Taiwan's creative and cultural industries. This chapter employs a case study approach to survey the current state of digital reality technology applications particularly in the area of creative and oceanic cultural industries in Taiwan. Using a detailed description of these best practices among creative and cultural industries to promote Taiwanese oceanic culture, this chapter aims to provide a detailed examination of digital reality applications in the creative and cultural industry sectors in a non-Western context.


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