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The search for new oil and gas deposits worldwide has increased due to the high demand for energy sources needed by industrial development and population growth. Although the industry has developed many processes and technologies to minimize waste generation and to dispose them safely and economically, a significant volume of solid waste from oil and gas drilling is expected in the future. For that reason, it is necessary to study some waste reuse alternatives.
In this work, the potential use of ashes derived from oil drilling cuts (ODC), applied to tertiary roads construction for remote areas in Colombia, is evaluated. To that purpose, ashes exposed to mechanical heat treatment are used as an improvement agent for lateritic clayey soils of low plasticity, predominant in the eastern region of Colombia (extended to Brasil and Venezuela). This region was selected due to its complexity: it has limited resources and large difficulties to obtain suitable materials for road construction, it is exposed to extreme cycles of drought and flood with an 8-month rainy season, and this is one of the areas to be recovered after peace agreements in the country with the guerrilla.
In the experimental plan, basic characterization tests were conducted to the soil, the ash, and mixtures soil-ash, as well as strength and durability evaluation of compacted and cured samples of stabilized soil at 0, 7 and 14 days, considering typical climate conditions of temperature and humidity in the region. Based on successful previous experiences, combination with other nonconventional soil stabilizers, such as salts and waterproofing materials, are also been considered to improve some properties of ash cuttings - soil mixtures. As a result, an economical and viable option is obtained to reduce environmental impacts of wastes and to improve lateritic soils of low mechanical characteristics for road earthworks.
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Caballero, O.J.: Estabilización Química con Silicato de Sodio del Material de Préstamo de la Vía La Primavera – Bonanza – La Venturosa en el Departamento del Vichada (Chemical Stabilization with Sodium Silicate of soils from La Primavera - Bonanza - La Venturosa in the Department of Vichada. Master Thesis, National University of Colombia (2017)
Meegoda J.N., Muller R.T.: Petroleum contaminated soils highway construction. In: Symposium Proceedings: Recovery and in Effective Reuse of Discarded Materials and By-products for Construction of Highway Facilities, Denver, CO, pp. 483–495 (1993)
Tuncan, A., Koyuncu, H.: Use of petroleum contaminated drilling wastes as sub-base material for road construction. Waste Manag. Res. 18, 489–505 (2000) CrossRef
- Reuse of Oil Drilling Cuts for Road Construction in the Eastern Region of Colombia
Systemische Notwendigkeit zur Weiterentwicklung von Hybridnetzen