During the development of drilling operations there are several operational risks and hazards that can jeopardize the continuity of the operation or make it so complicated that the economic burden to drill becomes unacceptable.
Loss of circulation is one of the main causes of cost increase in drilling operations throughout the world and often the formation characteristics, the well design, or the available technologies make it impossible to eliminate this problem.
Studies have shown that drilling fluids represent between 25% and 40% of the total cost of drilling a well (5). With this in mind it is clear that encountering loss of circulation, and particularly total losses, represents a significant impact on the economic aspect of the operations. Additionally, several cases face the problem that operations cannot continue unless the losses are stopped.
Number of Pages
Petroleum Engineering Handbook, Volume II: Drilling Engineering. Society of Petroleum Engineers. 2007. pp. 100-101. ISBN 978-1-55563-114-7.
^ Drilling engineering. Heriot watt university. 2005. pp. 214-215.
^ Rabia, Hussain (1986). Oilwell Drilling Engineering: Principles and Practice. Springer. pp. 284-287. ISBN 0860106616.
^ Jump up to:abcd Rabia, Hussain (2002). Well Engineering and Constructions. London: Entrac Consulting Limited. pp. 505-508. ISBN 0954108701.
Le´colier E, Herzhaft B, Ne´au L, Quillien B, Kieffer J. Development of a nanocomposite gel for lost circulation treatment. SPE paper 94686 presented at the SPE European formation damage conference held in Scheveningen, The Netherlands; 25e27 May 2005.
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