BEGIN:VCALENDAR VERSION:2.0 METHOD:PUBLISH PRODID:-//Tendenci - The Open Source AMS for Associations//Tendenci Codeba se MIMEDIR//EN BEGIN:VEVENT DESCRIPTION:--- This iCal file does *NOT* confirm registration.\r\nEvent d etails subject to change. ---\r\nhttps://www.spegcs.org/events/2083/\r\n\r \nEvent Title: Drilling: Shear Degradability of Granular Lost Circulation Materials\r\nStart Date / Time: Nov 14, 2012 11:30 AM US/Central\r\nLocati on: Greenspoint Club\r\nSpeaker: Ramy Mahrous\r\nGoogle\r\nhttp://maps.goo gle.com/maps?q=16925+Northchase+Dr.,Houston,TX,77060\r\n\r\nForecast\nhttp ://www.weather.com/weather/monthly/77060\r\n\r\n\r\nThis presentation summ arizes the results of a study undertaken to document and better understand the physical degradation experienced by lost circulation materials (LCMs) in a circulating drilling fluid during drilling operations. In this study , 15 conventional granular LCMs used to remediate and prevent lost circula tion were subjected to shear degradation tests, and the effect of shear on the particle size distribution (PSD) was measured. Four chemical families of LCMs were studied: marble\; carbon (graphite and petroleum coke)\; a t ough, short-filament fiber\; and pecan nut shells. All of these had aspect ratios of length/width/breadth ~1/1/1, hence were classified as granular. \r\n \r\nThe results indicate that, while the carbon-based products are mo re resistant than the marble-based products to shear degradation, neither one is particularly long-lasting, especially compared to the fibers and nu t shells, which exhibited little or no change in their particle size distr ibutions. An exception is a high-resiliency carbon-based LCM, which showed much greater resistance to shear degradation than the other carbon-based products, though slightly lower than the fiber and nut shell products. Bot h the carbon- and marble-based products exhibited greater resistance to sh ear degradation with decreasing particle size, and the trend appeared to b e stronger for the carbon than for the marble product line. A fine-mesh ma rble exhibited unusually high sensitivity to shear, which was not consiste nt with that trend\; this may not be surprising, though, considering that it is sourced differently than the other marble products and is ground in a manner that may make it more susceptible to fracturing. Neither the fibe r nor the nut shell demonstrated a clear size dependence of shear resistan ce based on particle size.\r\n--- This iCal file does *NOT* confirm regist ration.Event details subject to change. ---\r\n\r\n--- By Tendenci - The O pen Source AMS for Associations ---\r\n UID:uid2083@spegcs.org SUMMARY:Drilling: Shear Degradability of Granular Lost Circulation Materials DTSTART:20121114T173000Z DTEND:20121114T190000Z CLASS:PUBLIC PRIORITY:5 DTSTAMP:20240329T154029Z TRANSP:OPAQUE SEQUENCE:0 LOCATION:Greenspoint Club X-ALT-DESC;FMTTYPE=text/html: