Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Rudolf Konrad Fruhwirth"'
Publikováno v:
Liquid and Gaseous Energy Resources. 1:64-85
A frequency-elastic drive mode for a sucker rod pumping system is introduced to reduce its polished rod peak loads and the total energy consumption. Numerical modeling and an extensive field test verify the concept. The frequency-elastic drive mode i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ee87a4de0e017047a66314643f447ed
https://doi.org/10.21595/lger.2021.22074
https://doi.org/10.21595/lger.2021.22074
Publikováno v:
Liquid and Gaseous Energy Resources. 1:2-20
An advanced dynamic finite element model is presented that diagnoses the downhole pump performance of sucker rod pumping systems, applicable for any pumping conditions and equipment used. The results are compared to downhole measurements and other ev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1279bdd02a08ab270de35ddec6c3c340
https://doi.org/10.21595/lger.2021.22004
https://doi.org/10.21595/lger.2021.22004
Publikováno v:
SPE Production & Operations. 36:327-342
SummaryWhen the oil price is low, cost optimization is vital, especially in mature oil fields. Reducing lifting costs by increasing the mean time between failure and the overall system efficiency helps to keep wells economical and increase the final
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34538380043997343d25334fdd9de68d
https://doi.org/10.2118/205352-pa
https://doi.org/10.2118/205352-pa
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
The recovery of geothermal energy has become very attractive in the last decades. Advantages like the small footprint, the waste-free and CO2 neutral energy production and the continuous geothermal resource, will highly promote geothermal energy usag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e39fe21f3e33c6314c66a965977c631
https://doi.org/10.21203/rs.3.rs-59570/v1
https://doi.org/10.21203/rs.3.rs-59570/v1
Publikováno v:
Geomechanics and Tunnelling. 9:489-496
The overall economics of a geothermal project are basically governed by the formation temperature gradient and the productivity of the reservoir. At the Chair of Petroleum and Geothermal Energy Recovery, a simulator has been developed considering dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8588dd0122f15c7e6426ef8e7825463
https://doi.org/10.1002/geot.201600039
https://doi.org/10.1002/geot.201600039
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:
All Days.
Characteristics of formations usually cause changes in the drilling parameters such as weight on bit and drill string rotational speed as well as drill string dynamic behavior. When the drill bit breaks up formations, some of the energy dedicated to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::330ccabd26229f49684b0ed8e1fd562a
https://doi.org/10.2118/166793-ms
https://doi.org/10.2118/166793-ms
Publikováno v:
All Days.
Abstract Vibrations are known as destructive loads and thus are leading to downhole fatigue failures, severe bottom hole assembly and bit wear and may cause wellbore instabilities. Downhole measurement of vibrations, however, can provide valuable inf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac3ecc9bde014abed31f8cbf82304c61
https://doi.org/10.2523/iptc-16985-abstract
https://doi.org/10.2523/iptc-16985-abstract
Autor:
Felix Lee, Rudolf Konrad Fruhwirth, Florian Kronsteiner, Felix Riedel, Martin Winter, Heribert Vallant, Herwig Zeiner
Sub-Surface Drilling is the process of making boreholes into the Earth, which can reach depths of many kilometers. One of the major purposes of such boreholes is the exploration of oil or gas bearing formations with the goal to recover the content of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acf716228e6156d2d19855122514b82d
https://publica.fraunhofer.de/handle/publica/234574
https://publica.fraunhofer.de/handle/publica/234574