Production-Systems Analysis for Fractured Wells

1988 ◽  
Vol 3 (04) ◽  
pp. 608-614 ◽  
Author(s):  
James L. Hunt
Keyword(s):  
Systems Analysis ◽  
Production Systems

scholarly journals Systems Analysis of Biogas Production—Part I Research Design

Energies ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 926 ◽  
Author(s):  
Emma Lindkvist ◽  
Magnus Karlsson ◽  
Jenny Ivner
Keyword(s):  
Research Design ◽  
Systems Analysis ◽  
Fossil Fuels ◽  
Production Systems ◽  
Biogas Production ◽  
System Development ◽  
Energy System ◽  
Resource Efficiency ◽  
Energy And Environment ◽  
System Resource

Striving towards a resource efficient society requires an adjustment of energy systems towards renewable options. It is also of high importance to make use of products and materials to a higher degree. Biogas production has the potential to recover nutrients and energy from organic by-products, as well as to substitute fossil fuels in the energy system. Resource efficiency relates to the economic, energy and environmental performance of the system studied. A comprehensive research design for assessment of the resource efficiency of biogas production systems is described in this paper. The research design includes the following parts: identification of cases, defining scenarios, system development, evaluation perspectives and systems analysis. The analysis is performed from three perspectives; economy, energy and environment.

scholarly journals Farm systems analysis of two thistles of differing seasonal pasture growth impacts in North Island hill country

2019 ◽  
pp. 149-158 ◽  
Author(s):  
David R. Stevens ◽  
Katherine N. Tozer ◽  
Tim Rhodes ◽  
Sue M. Zydenbos ◽  
Robyn A. Dynes ◽  
...  
Keyword(s):  
Systems Analysis ◽  
Agricultural Production ◽  
Production Systems ◽  
Cirsium Arvense ◽  
Field Observations ◽  
Silybum Marianum ◽  
Pasture Production ◽  
Hill Country ◽  
Californian Thistle ◽  
Agricultural Production Systems

Models for infestations of Californian thistle (Cirsium arvense) and variegated thistle (Silybum marianum) were used to modify fortnightly pasture growth forecasts using Agricultural Production Systems simulator software using climate and soil data from a single farm (Tangihanga Station) over four aspects and three slope classes. Modelling using Farmax software was used to estimate profitability using the current farm enterprises with or without either the Californian or variegated thistles. Modelled pasture production, based on field observations of thistle infestation, was similar to estimates using animal intake (from Farmax). Californian thistle reduced pasture production in summer and autumn, while variegated thistle reduced autumn, winter and spring pasture growth. Californian thistle had a much greater overall presence (20%) than variegated thistle (9%). Both types of thistle reduced the potential to finish lambs in summer and reduced ewe wintering numbers, while the presence of Californian thistles also reduced over-wintering cattle numbers, by reducing summer-autumn pasture accumulation. Cost of control for Californian thistle ($233/ha) over two years was higher than for variegated thistle ($184/ha) over four years. Net profitability was reduced by 24% ($87/ha) by the presence of Californian thistle, and by 37% ($135/ha) by the presence of variegated thistle.

Production Systems Analysis of Vertically Fractured Wells

1982 ◽  
Author(s):  
Hai-Zui Meng ◽  
Eduardo Antonio Proano ◽  
Ismail M. Buhidma ◽  
Joe M. Mach
Keyword(s):  
Systems Analysis ◽  
Production Systems

A PROJECT MANAGEMENT APPROACH TO MANAGING THE IMPLEMENTATION OF LEAN PRODUCTION

2020 ◽  
Vol 2 (4) ◽  
pp. 40-47
Author(s):  
N. V. MORGUNOVA ◽  
Keyword(s):  
Project Management ◽  
Systems Analysis ◽  
Production Systems ◽  
Lean Production ◽  
Developed Countries ◽  
Management Approach ◽  
Japanese American ◽  
Effective Management ◽  
Management Options ◽  
Expected Performance

The article highlights methodical approaches to building a mechanism for effective management of the implementation of the lean production, as a factor in solving the problem of Russia's lag behind developed countries in productivity. The issues related to differences in the ideology of Japanese, American and Russian lean production systems, analysis of historical experience of implementation, trends and effectiveness of var-ious management options for the implementation of lean production are considered for Russia and developed countries; the reasons for the lack of efficiency of implementation in the dynamics are considered; An assess-ment of expected performance under the national project «Productivity and employment support”; methodical recommendations have been proposed to form an effective mechanism for implementing lean production based on a combination of project management and quality management.

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