Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Daltro J. L. Carvalho"'
Autor:
Rafael C. Baptista, Sandro Batista Alves, Daltro J. L. Carvalho, Ian James Thomson, Rogério M. Rodrigues, David M Schnell, Ana Paula L. A. Ferreira
Publikováno v:
All Days.
Offshore Brazil is a technically challenging drilling environment due to its size, depth, section length and lithology column characteristics. While drilling in this environment, operators often face nonproductive time (NPT) incidents such as stuck p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bf1f4d9f3bbde29d5ea25e68021507c
https://doi.org/10.4043/25838-ms
https://doi.org/10.4043/25838-ms
Publikováno v:
All Days.
The understanding and mitigation of downhole vibration has been the subject of intense scientific research in the drilling industry in recent years, as inefficient drilling results in slower and more expensive operations. In order to drill ahead, a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a3dfdb0d8409927ab0c103888279c5f
https://doi.org/10.2118/152231-ms
https://doi.org/10.2118/152231-ms
Autor:
Ronnie Hardie, Daltro J. L. Carvalho, Joao Carlos Ribeiro Placido, Rasheed Wajid, Antonio C.V.M. Lage
Publikováno v:
All Days.
This paper describes the tests and concept behind a new hydraulic hammer. The objectives of these tests were to evaluate penetration rate performance of this hammer when used in conventional drilling conditions. To date the usage of hydraulic hammers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63d4d1d2ed6499d5509cb726cfba8a3f
https://doi.org/10.2118/84355-ms
https://doi.org/10.2118/84355-ms