2022-Sustainable Industrial Processing Summit
SIPS2022 Volume 8 Mauntz Intl. Symp. Energy Production
| Editors: | F. Kongoli, H. Dodds, S. Atnaw, T. Turna. |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2022 |
| Pages: | 266 pages |
| ISBN: | 978-1-989820-48-3(CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Oil Well Cementing
Abdollah Esmaeili1; Yermek Aubakirov1; Fatima Kanapiyeva1;1AL-FARABI KAZAKH NATIONAL UNIVERSITY, Almaty, Kazakhstan;
Type of Paper: Regular
Id Paper: 20
Topic: 17
Abstract:
The main purpose of a primary cementing job is to provide effective zonal isolation for the life of the well so that oil and gas can be produced safely and economically. Oil Well Cement as the name suggests, is used for the grouting of the oil wells, also known as the cementing of the oil wells. This is done for both, the off-shore and on-shore oil wells. It is manufactured from the clinker of Portland cement and also from cements that have been hydraulically blended. Oil Well Cement can resist high pressure as well as very high temperatures and sets very slowly because it has organic 'retarders' which prevent it from setting too fast. Oil Well Cement has proved to be very beneficial for the petroleum industry due to its characteristics. For it is due to the Oil Well Cement that the oil wells function properly. The various raw materials required for the production of Oil Well Cement are: 1-Limestone 2-Iron Ore 3-Coke 4-Iron Scrap.
Cement is also used to seal formations to prevent loss of drilling fluid and for operations ranging from setting kick-off plugs to plugging and abandonment. One of the most famous work-over jobs on an oil well to prevent extra gas and water production and to plug their passages is oil well cementing. The important things which we must consider in an oil well cementing job are: rheological, and physical properties such as density, fluid loss, thickening time, and water cement ratio under high pressure and temperature, effect of accelerators and retarders on cement slurries, compressive strength and permeability of cement plugs, additives for special applications such as elevated temperature and high influx of electrolytes. This paper presents the results of our studies about these subjects in oil well cementing.