Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Reinhard Pongratz"'
Autor:
Rudolf Konrad Fruhwirth, Viorica Sirghii, Michael Nirtl, Reinhard Pongratz, Herbert Hofstaetter
Publikováno v:
Day 3 Thu, April 22, 2021.
An innovative method for Sucker Rod Pump (SRP) failure prediction based on Improved Completely Connected Perceptron artificial neural networks (ANN) is presented. Results are compared to historical wellbore data. ANN models validity is proven to meet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8c1f396a808a1d1853347e3b8cb7e6f
https://doi.org/10.2118/200825-ms
https://doi.org/10.2118/200825-ms
Autor:
Christoph Marschall, Hans-Peter Pratscher, Reinhard Pongratz, Alexandru-Cosmin Ciufu, Michaela Gertrude Hoy, Clemens Langbauer
Publikováno v:
Journal of Petroleum Science and Engineering. 195:107910
The performance of two electric submersible pumps (ESP), when pumping non-Newtonian polymer fluids, was tested at a pump test facility of the university. The results are compared with existing models, and the de-rating coefficients are evaluated for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c500b9c446d867ddd2164c201543e24
https://doi.org/10.1016/j.petrol.2020.107910
https://doi.org/10.1016/j.petrol.2020.107910
Publikováno v:
Day 2 Wed, October 17, 2018.
An innovative and more accurate method for formation breakdown pressure (FBP) prediction based on self-learning artificial neural networks (ANNs) is presented. Results are compared to industry wide accepted deterministic FBP prediction models. ANN mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df98dcc94feca1e7dffa6c08a77fe0dc
https://doi.org/10.2118/191391-18ihft-ms
https://doi.org/10.2118/191391-18ihft-ms
Publikováno v:
19th AIAA/CEAS Aeroacoustics Conference.
Aircraft exterior noise reduction is a major task for manufacturer and carrier. However, optimum sound absorption over a broad frequency range at engine level is still a challenging aspect for acoustic liner. This paper presents the special acoustic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed95754798b281f7e389d90c427d391d
https://doi.org/10.2514/6.2013-2176
https://doi.org/10.2514/6.2013-2176
Publikováno v:
18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference).
Currently, the counter rotating open rotor (CROR) is one of the most promising and exhaustively investigated propulsion concepts for future commercial aircraft. There exists a big variety of numerical studies, dealing with the fundamental understandi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b65c85917268449d953de5479edf86ae
https://doi.org/10.2514/6.2012-2126
https://doi.org/10.2514/6.2012-2126
Publikováno v:
All Days.
In 2010, natural-gas production rates in the USA for March and April were the highest since 1974 (US Energy Information 2010). This is largely related to recent success in exploiting unconventional reservoirs and successful development and implementa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::379f080cb07e8e851fc30d93eb7d47c6
https://doi.org/10.2118/142959-ms
https://doi.org/10.2118/142959-ms
Publikováno v:
All Days.
Before the mid-1990s, the main goal of hydraulic-fracturing operations in Russia was preventing near wellbore damage. Typical fracturing treatments used a crosslinked polymer-based gel as carrier fluid to place 5 to 20 MT of proppant into the formati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c78ce52881dc2724a485c24c9707fbea
https://doi.org/10.2118/114876-ms
https://doi.org/10.2118/114876-ms
Publikováno v:
All Days.
Creating multiple zone stimulations in complex reservoirs presents unique challenges for the completion engineer. Effectively stimulating each individual pay interval using separate fracturing treatments can be costly and time consuming. Historically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2053a7b1d18cd9d45fa109c1f211462
https://doi.org/10.2118/114786-ms
https://doi.org/10.2118/114786-ms
Autor:
Reinhard Pongratz, Paul McMorran
Publikováno v:
All Days.
Low oil prices in the mid-1980’s, and widespread industry restructuring since the 1990’s, have drastically impacted our industry workforce. In the West, fewer students in technical disciplines generally, and on petroleum-related courses particula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bebceac0978f2e4a1eb992b6e2b1a3a2
https://doi.org/10.2118/114785-ms
https://doi.org/10.2118/114785-ms