Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Hani AL Khalaf"'
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 37, Iss 2, Pp 1-11 (2022)
This study is investigating the possibility of using pinecones as additive materials to develop a water-based drilling mud. Pinecones are environmentally friendly agricultural wastes and have no practical applications. Therefore, this study is of gre
Externí odkaz:
https://doaj.org/article/09d0accf1e574f79910f88ae6f6f467f
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 37, Iss 5, Pp 23-38 (2022)
The main objective of this study is to enhance the poor performance of oil well cement in terms of mechanical properties by using pure polypropylene fibers. Polypropylene fibers were added in increasing concentrations from 0 to 0.1%, 0.3%, 0.5%, 0.7%
Externí odkaz:
https://doaj.org/article/cd41f8c78003423e992ff7bb872c0a04
Autor:
Hani AL Khalaf, Gabriella Federer Kovacsne, Nagham Alhaj Mohammed, Gabor Horvath, Roland Docs
Publikováno v:
Heliyon, Vol 9, Iss 1, Pp e12975- (2023)
There have been many investigations to improve both the physical and mechanical properties of oil well cement using a wide range of materials. Most of these additives are expensive and practically ineffective. In this article, a comprehensive evaluat
Externí odkaz:
https://doaj.org/article/cd8eaba1ddcd42b0bfc9d54efb8cd6fc
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 36, Iss 5, Pp 1-12 (2021)
This study investigates the possibility of using rice husk ash as an additive to develop an environmentally friendly and low-cost drilling fluid system. Rice husk ash was added as an additive to water-based bentonite drilling fluids at different conc
Externí odkaz:
https://doaj.org/article/6938b5409282470c8cc4a1a7de31c8eb
Publikováno v:
Geosciences and Engineering. 9:29-42
Filtrate loss within formations is one of the biggest problems during drilling operations. Therefore, many commercial chemical additives have been used to reduce fluid loss, such as carboxymethylcellulose (CMC) and polyanionic cellulose (PAC), which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1293e6f1d1972eb947e3f83182474213
https://doi.org/10.33030/geosciences.2021.14.029
https://doi.org/10.33030/geosciences.2021.14.029
Publikováno v:
Rudarsko-geološko-naftni zbornik
Volume 37
Issue 5
Volume 37
Issue 5
The main objective of this study is to enhance the poor performance of oil well cement in terms of mechanical properties by using pure polypropylene fibers. Polypropylene fibers were added in increasing concentrations from 0 to 0.1%, 0.3%, 0.5%, 0.7%
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::452fe03c39dc35f81f391536d9900b0c
https://hrcak.srce.hr/286719
https://hrcak.srce.hr/286719
Autor:
Mustafa Goktan Aydin, Volkan Aylikci, Emine Yalman, Tolga Depci, Gabriella Federer-Kovacs, Hani Al Khalaf
Publikováno v:
Journal of Petroleum Science and Engineering. 210:109907
The aim of this study is to develop inhibitive drilling fluid systems generated from waste materials that can contribute to the reduction of potential well instability problems caused by drilling fluid based on rheological and filtration properties.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0dd0d509c04fab2214b85f8853b6126
https://doi.org/10.1016/j.petrol.2021.109907
https://doi.org/10.1016/j.petrol.2021.109907
Autor:
Hani Al-Khalaf, Peter M. Vogt, Stefanie Jasper, Ursula Mirastschijski, Michael Stephan, Hans-Oliver Rennekampff
Publikováno v:
International archives of occupational and environmental health. 85(7)
The aim of this study was providing descriptive information and the comparative examination of job strain and mental health of nurses and physicians in different intensive care units (ICU). The Effort–Reward Imbalance Questionnaire by Siegrist and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23509c9a5349b9508cd528e6aaaf986a
https://pubmed.ncbi.nlm.nih.gov/22086785
https://pubmed.ncbi.nlm.nih.gov/22086785