History, Evolution, and Future of Casing Design Theory and Practice

2021 ◽  
Author(s):  
John A. Howard ◽  
Ruggero Trevisan ◽  
Albert McSpadden ◽  
Simon Glover
Keyword(s):  
Design Theory ◽  
Application Programming Interface ◽  
Theory And Practice ◽  
Load Case ◽  
Ongoing Research ◽  
Geothermal Wells ◽  
Constant State ◽  
Design Loads ◽  
History Evolution ◽  
Rest Api

Abstract Casing design and the associated load assumptions have evolved considerably over the last 30 years. The objective of this paper is to trace the history, evolution and future of casing design by means of the type of load cases and the assumptions made for them as it evolved from the early 1960's to the modern load case requirements for wells drilled in the 2020's. The vast majority of tubular failures in oil & gas wells are not attributable to computational errors in calculating design loads, but rather are due to a shortfall in considering the appropriate load scenarios. One common shortfall includes making incorrect or oversimplified assumptions for the initial and final temperature and pressure conditions. There is no industry standard for casing or tubing design loads, but there is an industry accepted standard process for the calculation of the stress on tubulars once the load cases are determined. Each operating company may use a different set of load assumptions depending on the well type and risk assessment. This work also keeps in view the major computational tools used during each step change of the casing design evolution: slide rule/nomographs, HP 41C calculators, PC DOS and Windows programs, and the latest Cloud-Native paradigm with REST API's within a microservices architecture. A REST API (also known as RESTful API) is an Application Programming Interface (API) that conforms to the constraints of Representational State Transfer (REST) architectural style commonly used in current Cloud computing technology. The scope will also include ongoing research and development to address shortcomings of previous load case assumptions and calculations for extended reach and HPHT wells, closely spaced wells, and geothermal wells. Modern wells and modern casing design load cases are in a constant state of evolution and casing failures will occur unless engineers and their tools also evolve.

As-RaD System as a Design Model of the Network Automation Configuration System Based on the REST-API and Django Framework

2020 ◽  
pp. 291-298
Author(s):  
Adian Fatchur Rochim ◽  
Abda Rafi ◽  
Adnan Fauzi ◽  
Kurniawan Teguh Martono
Keyword(s):  
Information Technology ◽  
Application Programming Interface ◽  
Design Model ◽  
Automation System ◽  
Network Configuration ◽  
Web Based ◽  
Representational State Transfer ◽  
Application Programming ◽  
Rest Api ◽  
Python Programming

The use of information technology these days are very high. From business through education activities tend to use this technology most of the time. Information technology uses computer networks for integration and management data. To avoid business problems, the number of network devices installed requires a manageable network configuration for easier maintenance. Traditionally, each of network devices has to be manually configured by network administrators. This process takes time and inefficient. Network automation methods exist to overcome the repetitive process. Design model uses a web-based application for maintenance and automates networking tasks. In this research, the network automation system implemented and built a controller application that used REST API (Representational State Transfer Application Programming Interface) architecture and built by Django framework with Python programming language. The design modeled namely As-RaD System. The network devices used in this research are Cisco CSR1000V because it supports REST API communication to manage its network configuration and could be placed on the server either. The As-RaD System provides 75% faster performance than Paramiko and 92% than NAPALM.

From Problem-Solving Paradigm to Co-Ontogenic Drift: How Do Learning Narratives Self-Generate?

Leonardo ◽  
2011 ◽  
Vol 44 (2) ◽  
pp. 133-138
Author(s):  
Johann van der Merwe ◽  
Julia Brewis
Keyword(s):  
Problem Solving ◽  
Real World ◽  
Design Education ◽  
Design Theory ◽  
Social Situation ◽  
Theory And Practice ◽  
Use Of Self ◽  
Real World Problems

It is now an accepted maxim in design theory and practice that real-world problems needing the attention of design practitioners are not neat and well-structured, but ill-structured and “wicked”—part of a larger, complex social situation. For design education, then, to take its lead from contemporary social, political and economic structures, it will have to seriously re-think its problem-solving paradigms. The authors investigate the use of self-generating learning narratives in the classroom and contrast the approach they introduce with the still-too-prevalent notion that knowledge can be transferred from teacher to student. Their methodology draws from ideas formulated by Maturana and Varela on autopoiesis, specifically the notion of co-ontogenic drift.

Statistical Design: Theory and Practice.

1988 ◽  
Vol 83 (403) ◽  
pp. 909
Author(s):  
Dallas E. Johnson ◽  
Charles E. McCulloch ◽  
Steven J. Schwager ◽  
George Casella ◽  
Shayle R. Searle
Keyword(s):  
Design Theory ◽  
Statistical Design ◽  
Theory And Practice

Pemantauan dan Pengendalian Parameter Akuaponik Menggunakan Representational State Transfer Application Programming Interface

2020 ◽  
Vol 9 (4) ◽  
pp. 394-402
Author(s):  
Helmy ◽  
Athadhia Febyana ◽  
Agung Al Rasyid ◽  
Arif Nursyahid ◽  
Thomas Agung Setyawan ◽  
...  
Keyword(s):  
Application Programming Interface ◽  
Total Dissolved Solids ◽  
Data Loss ◽  
Representational State Transfer ◽  
State Transfer ◽  
Application Programming ◽  
Representational State ◽  
Rest Api ◽  
E Mail ◽  
Programming Interface

Akuaponik merupakan penggabungan antara akuakultur dengan hidroponik. Salah satu sistem hidroponik yaitu sistem drip (tetes). Parameter yang perlu diperhatikan dalam budidaya akuaponik antara lain keasaman larutan nutrisi yaitu pH, suhu air, dan larutan nutrisi yang ditunjukkan oleh kepekatan zat padat terlarut dalam air (Total Dissolved Solids, TDS). Nutrisi tanaman diperoleh dari kotoran ikan yang mengandung nitrogen. Oleh karena itu, diperlukan pemantauan pH, TDS, dan suhu secara realtime dan pengendalian kelembapan tanah pada tanaman akuaponik agar tanaman tidak kekurangan nutrisi. Proses pengendalian menggunakan Representational State Transfer Application Programming Interface (REST API) dalam menerima nilai batas ambang yang ditentukan petani akuaponik melalui situs web dan mengirimkan nilai kelembapan tanah dan parameter kolam ikan berupa pH, suhu dan TDS ke server. Pengujian data loss dan delay pada sistem pemantauan dan pengendalian ini diperlukan untuk mengetahui keandalan alat dalam pengiriman dan penerimaan data. Selain itu, diperlukan notifikasi berupa e-mail kepada petani apabila nilai kelembapan tanah kurang dari batas ambang. Hasil pengujian menunjukkan sistem dapat mengirimkan notifikasi berupa e-mail kepada petani apabila nilai kelembapan tanah kurang dari batas ambang, rerata delay pemantauan node-gateway sebesar 6,01 detik, sedangkan rerata delay pemantauan gateway–server sebesar 10,02 detik, dan rerata delay pengendalian server–gateway sebesar 92,55 detik.

scholarly journals Exploring Design Constructs In Sound Design With A Focus On Perceived Affordance

2019 ◽  
Vol 63 (1) ◽  
pp. 1199-1203
Author(s):  
Myounghoon Jeon
Keyword(s):  
Design Theory ◽  
Theory And Practice ◽  
Auditory Display ◽  
Sound Design ◽  
Visual Displays ◽  
Auditory Displays ◽  
Design Theories ◽  
Future Work

While design theories in visual displays have been well developed and further refined, relatively little research has been conducted on design theories and models in auditory displays. The existing discussions mainly account for functional mappings between sounds and referents, but these do not fully address design aspects of auditory displays. To bridge the gap, the present proposal focuses on design affordances in sound design among many design constructs. To this end, the definition and components of design affordances are briefly explored, followed by the auditory display examples of those components to gauge whether sound can deliver perceived affordances in interactive products. Finally, other design constructs, such as feedback and signifier, are discussed together with future work. This exploratory proposal is expected to contribute to elaborating sound design theory and practice.

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