pH, sodium, potassium, calcium, magnesium and aluminum in soils contaminated with petroleum drilling fluid after leaching tests

Ciência Rural

Zonta, Everaldo²  Presotto, Rafael Antônio²  Freitas, Fábio Cardoso de¹  Genúncio, Glaucio da Cruz²  Sobrinho, Nelson Moura Brasil do Amaral² 

[1] Universidade Federal Rural do Rio de Janeiro, Três Rios, BR;UFRRJ, Seropédica, BR

关键词: salinization;    drill cuttings;    E&;    amp;    P wasteINTRODUÇÃO:A perfuração de poços de petróleo é um método de investigação capaz de confirmar e quantificar de forma direta o potencial da estrutura geológica portadora de petróleo e gás;   

DOI  :  10.1590/0103-8478cr20140284

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

In petroleum exploration, the use of drilling fluids is critical to the balance of pressure between the formations and the interior of the shaft, and preventing the backflow of oil from the reservoir to the oill well. Fluids are also responsible for raising the drill cuttings to the surface. However, these may potentially contaminate the environment once they arrive at the fluid-impregnated surface. This study aimed to check the pH and Na+, K+, Ca2+, Mg2+and Al3+ in an Oxisol and Planosol subjected to doses of drilling fluid, after suffering two leaching tests. The results showed that the addition of fluids to Planosoland Oxisol at concentrations of 4%, 8% and 16% (w / w) reduced toxic aluminum to zero and promoted an increase of the soil pH, Na+, K+ and Ca2+ compared to control

【 授权许可】

Unknown