30 Years of Continuous Coiled Tubing Modeling Software Development and Field Applications Creating New Capabilities

Author(s):  
W. A. H. Aitken ◽  
S. Livescu ◽  
S. Craig
2016 ◽  
Vol 12 (S325) ◽  
pp. 253-258
Author(s):  
R. A. Street

AbstractDespite a flood of discoveries over the last ~ 20 years, our knowledge of the exoplanet population is incomplete owing to a gap between the sensitivities of different detection techniques. However, a census of exoplanets at all separations from their host stars is essential to fully understand planet formation mechanisms. Microlensing offers an effective way to bridge the gap around 1–10 AU and is therefore one of the major science goals of the Wide Field Infrared Survey Telescope (WFIRST) mission. WFIRST’s survey of the Galactic Bulge is expected to discover ~ 20,000 microlensing events, including ~ 3000 planets, which represents a substantial data analysis challenge with the modeling software currently available. This paper highlights areas where further work is needed. The community is encouraged to join new software development efforts aimed at making the modeling of microlensing events both more accessible and rigorous.


2021 ◽  
Author(s):  
Ahmed ElSayed Ghonim ◽  
Amr Zeinhom Elfarran ◽  
Osama Aly Okasha ◽  
Ehab Mohamed Haridy ◽  
Mahmoud Mohamed Koriesh ◽  
...  

Abstract This paper represents a challenging rig-less intervention in highly deviated wells with heavy oil that has always been a challenge to conventional electric line (e-line) that is not a valid intervention technique due to its inherent limitations in these harsh environments. Electric Coiled Tubing (E-CT) was utilized not only to achieve safer deployment of the guns, but also to allow real-time operations on three wells which were inaccessible due to heavy oil content and restricted e-line accessibility. A case study is presented for a campaign performed using E-CT to convey the perforating string while pumping nitrogen (N2) to lift the well and achieve flowing under-balance to maximize perforation clean-up and minimize skin. Real-time readings from gamma ray, pressure and temperature sensors were used to accurately position the guns, generate the desired dynamic underbalance, and finally validate successful detonation based on pressure and temperature responses. This was achieved while N2 lifting and firing the guns to optimize the required under-balance value providing immediate feedback related to the production gain to determine the zonal contributions and maximize the economical production gains. Dynamic wellbore behavior software modeling was also used to predict the dynamic under-balance effect for maximizing perforation efficiency. Deployment of E-CT was very challenging in terms of operational execution but was extremely beneficial for the safety of the pipe during such operations. A total of 13 runs comprising of milling, tubing cleaning and drifting were performed to remove the accumulated scales inside the production tubing and to ensure full accessibility to target intervals. Coiled Tubing (CT) dynamic modeling software was utilized to simulate the N2 rate needed to achieve the target underbalance while maintaining safe perforating parameters for the CT while firing the guns. As a result of software simulations, one of the three wells was then recommended for an acid wash treatment which achieved very effective results. 15 perforation runs were performed on the three wells re-perforating a total of 188 ft of interval, resulting in a production increase of more than 300%. This was a significant improvement compared to the previous campaign carried out in 2017 where perforating in static conditions showed no increase in production without work-over rig intervention. E-CT intervention also eliminated the need for waiting on rig schedule and avoiding deferred production.


2016 ◽  
Vol 4 (3) ◽  
pp. 463
Author(s):  
Yusuf Hasyim Maghfuri ◽  
Kodrat Iman Satoto ◽  
Rinta Kridalukmana

Interesting tourist sites is the reason for people to visit. Traveled as an option for people to fill holiday time to gather with familiy and friends. Because of lack information about tourist sites in Kudus city known by the public, assistance is needed to facilitate to search for the location. Travel guide Kudus city-Based applications Android Locator is the ultimate solution in search of tourist sites in the Kudus city. The purpose of making this application is to develop a search guidance system location based android that features a tourist guide. Kudus City Travel Guide-Based applications Android Locator is a client server based applications created using the Java programming language and the Eclipse software using MySQL database. Stages of development software used is SDLC (Software Development Life Cycle) by using the method waterfall, as modeling software used is UML (Unified Modelling Language). Steps in this research is software requirement analysis, design, coding, testing and maintenance. Functional testing using a method of black box. The result of this research that the Kudus City Application Tourist Sites Guide Using Android-Based Mobile Devices used for guidance in traveling in the Kudus city. Function menus and buttons is going according to their respective functions. Kudus city travel guide app can now be used as a medium for guidance in finding tourist sites. Objek wisata yang menarik adalah salah satu alasan orang untuk berkunjung. Berwisata menjadi pilihan untuk masyarakat mengisi waktu liburan dengan berkumpul bersama keluarga maupun teman. Karena sedikitnya informasi lokasi objek wisata kota Kudus yang diketahui oleh masyarakat, diperlukan bantuan untuk mempermudah dalam pencarian lokasi tersebut. Aplikasi Panduan Wisata Kota Kudus Menggunakan Perangkat Bergerak Berbasis Android adalah solusi utama dalam pencarian lokasi objek wisata di kota Kudus. Tujuan pembuatan aplikasi ini adalah mengembangkan suatu sistem pemandu pencarian lokasi objek wisata berbasis android yang memiliki fitur penunjuk jalan. Aplikasi Panduan Wisata Kota Kudus Menggunakan Perangkat Bergerak Berbasis Android merupakan aplikasi berbasis client server yang dibuat dengan menggunakan bahasa pemrograman java dengan software eclipse dan menggunakan basis data MySql. Tahapan pengembangan perangkat lunak yang digunakan adalah SDLC (Software Development Life Cycle) dengan menggunakan metode waterfall serta pemodelan perangkat lunak yang digunakan adalah UML (Unified Modeling Language). Langkah-langkah dalam penelitian ini adalah analisis kebutuhan perangkat lunak, desain, pengkodean, pengujian dan pemeliharaan. Pengujian fungsional dilakukan menggunakan metode black box. Hasil dari penelitian ini yaitu Aplikasi Panduan Wisata Kota Kudus Menggunakan Perangkat Bergerak Berbasis Android yang digunakan untuk panduan dalam berwisata di kota Kudus. Fungsi menu dan tombol-tombol sudah berjalan sesuai dengan fungsionalitasnya masing-masing. Aplikasi panduan wisata kota Kudus ini sudah bisa digunakan sebagai media panduan dalam menemukan lokasi wisata.


Author(s):  
Vyron Damasiotis ◽  
Panos Fitsilis ◽  
James F. O'Kane

Modern software systems are growing increasingly complex, requiring increased complexity of software and software development process (SDP). Most software complexity measurement approaches focus on software features such as code size, code defects, number of control paths, etc. However, software complexity measurement should not only focus on code features but on features that cover several aspects of SDP in order to have a more complete approach to software complexity. To implement this approach, an extensive literature review for identifying factors that contribute to the complexity of SDP was performed and seventeen complexity factors were identified. As there were indications that the identified factors were not independent from each other but there were interrelations between them, statistical methods for identifying the underlined relations and refining them were applied, resulting to the final set of measures used in the proposed model. Finally, the proposed model has been tested in five software projects and the results were evaluated.


2013 ◽  
Vol 26 (3) ◽  
pp. 339-349 ◽  
Author(s):  
Diego Martín ◽  
Javier García Guzmán ◽  
Julián Urbano ◽  
Antonio Amescua

Author(s):  
Gerhard Chroust ◽  
Marco Kuhrmann ◽  
Erwin Schoitsch

In this chapter the authors discuss the WHY and WHAT of modeling software development processes: defining the components of a software process and proposing 5-dimensional grid of attributes of existing models: strategy and path, levels, main subprocesses, components and aura. Specific process models, currently used or historically important, are described. This is followed by an extensive discussion of methods for and problems of modeling a software process, followed by a shorter discussion on the enactment of process models via software engineering environments. The chapter closes with a discussion of the human aspects concerning introduction and enactment of a process model.


2020 ◽  
Vol 7 ◽  
pp. 120-126
Author(s):  
I.S. Zheltovа ◽  
◽  
A.A. Filippov ◽  
A.V. Pestrikov ◽  
D.Yu. Kholodov ◽  
...  

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