Browsing by Subject "drilling fluid"

Now showing 1 - 5 of 5

Access status: Open Access ,
Biocide testing for the application in the oil and gas industry
(2015) Turkiewicz, Anna; Brzeszcz, Joanna; Witek, Wiesław; Kapusta, Piotr
The paper discusses tests for effectiveness of three antibacterial substances for application in the national oil and gas industry. The substances were tested with reference to active cultures of microorganisms. These cultures were isolated, inter alia, from drilling fluids, produced waters and extraction sludge, and then multiplied and used in tests discussed in this publication. The tests demonstrated differences in particular tested substances in respect of effectiveness of their impact on aerobic and anaerobic bacteria and fungi. The results of the work will be used in industrial treatments in order to eliminate biogenic contamination, counteract biodegradation of drilling muds, and also for disinfection of reservoirs designed for storing water and other technological fluids.
Access status: Open Access ,
Metodyka wyznaczania uogólnionej liczby Reynoldsa cieczy wiertniczych opisywanych modelem reologicznym Herschela-Bulkleya
(2005) Wiśniowski, Rafał; Stryczek, Stanisław; Skrzypaszek, Krzysztof
The authors give a characteristic of fluids applied in the drilling practice, and indicate the purposefulness of application of the Herschel-Bulkley model for describing their rheological properties. Then they discuss the influence of generalized Reynolds number on determination of non-Newtonian fluid pressure loss, with focus on fluids described with the Herschel-Bulkley rheological model. In the lack of possibility to analytically determine the generalized Reynolds number for a fluid described with the Herschel-Bulkley rheological model, numerical methods were suggested. Basing on a special algorithm and software, the results were exemplified.
Access status: Open Access ,
Technologia balastowania kolumn rur osłonowych wciąganych do horyzontalnych przewiertów sterowanych
(2008) Wiśniowski, Rafał; Stryczek, Stanisław; Ziaja, Jan
Despite the recent advancements in drilling, the problem of inefficient cleaning of the well's bottom and annular space from cuttings still remains valid. The resulting drilling failures and complications elongate the time of drilling and increase the cost of making drilling wells. One of the factors influencing the process of cuttings removal is the proper selection of physical properties and rheological parameters of drilling mud. The influence of the intensity of sedimentation of the solids in the liquid phase in dynamic conditions on the rheological properties of a drilling mud described with the Hershel-Bulkley model is analyzed in the paper. Basing on the experiments carried out at the Faculty of Drilling, Oil and Gas, the obtained results were analyzed in view of their applicability to the borehole conditions.
Access status: Restricted ,
Wpływ nanomateriałów na wybrane właściwości płynów wiertniczych
(Data obrony: 2018-01-31) Kowalski, Kacper
Wydział Wiertnictwa, Nafty i Gazu
Access status: Open Access ,
Wpływ parametrów reologicznych modelu Herschela-Bulkleya na wynoszenie zwiercin
(2008) Wiśniowski, Rafał; Stęperski, Przemysław
Despite the recent advancements in drilling, the problem of inefficient cleaning of the well's bottom and annular space from cuttings still remains valid. The resulting drilling failures and complications elongate the time of drilling and increase the cost of making drilling wells. One of the factors influencing the process of cuttings removal is the proper selection of physical properties and rheological parameters of drilling mud. The influence of the intensity of sedimentation of the solids in the liquid phase in dynamic conditions on the rheological properties of a drilling mud described with the Hershel-Bulkley model is analyzed in the paper. Basing on the experiments carried out at the Faculty of Drilling, Oil and Gas, the obtained results were analyzed in view of their applicability to the borehole conditions.