Speaker:         Salim TaouTaou
Topic:              Lost Circulation- A Challenge We Must Address

Abstract
Lost circulation is the most troublesome and costly problem in the drilling operations, cost of material, non productive and lost rig time and lost holes amounts for more than 2,000 M$/year.
Lost circulation can be categorized into induced losses, and losses occurring in naturally fractured formation. Although some progress using different lost circulation materials and different placement techniques has been done; curing losses is still an art and not a science.
This presentation will cover the lost circulation challenges during the drilling, cementing and the consequences on the long term integrity of the well; and the solutions related to preventing the losses to occur as well as the mitigation measures to combat the losses when they happen. In addition newly developed solutions, techniques and diagnostic tool to mitigate lost circulation will be presented.

Biography
Salim TaouTaou is the Cementing and Well Integrity Technical Advisor for Schlumberger in Paris. He manages the global development of the well integrity cementing domain strategy, providing optimal well integrity cementing solutions for clients. Through his 19 years in the oil and gas industry, he has held various positions in Africa, the North Sea, the Middle East and Asia Pacific. He has authored more than 43 international journal and conference papers, he is the holder of three patents and was the recipient of the SPE 2014 Asia Pacific Regional Technical Award in Drilling Engineering. He received a master’s degree in mechanical engineering from Guelma University, Algeria.


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