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/2518/\r\n\r \nEvent Title: Drilling: Cost Effective Ultra-Large Diameter PDC Bit Drill ing in Deepwater Gulf of Mexico\r\nStart Date / Time: Mar 19, 2014 11:30 A M America/Chicago\r\nLocation: Greenspoint Club\r\nSpeaker: Reisha Bouska\ r\nGoogle\r\nhttp://maps.google.com/maps?q=16925+Northchase+Dr.,Houston,Te xas,77060\r\n\r\nForecast\nhttp://www.weather.com/weather/monthly/77060\r\ n\r\nUltra-large diameter Polycrystalline Diamond Compact (PDC) bit drilli ng is a fast growing cost-effective solution in high-tier deepwater drilli ng operations in the U.S. Gulf of Mexico (GOM) where salt is encountered i n the shallow part of the wellbore. Conventional design called for roller cone (RC) (IADC Code 111-115) drill bits on positive displacement motors (PDM) in these ultra-large diameter intervals. Cost savings on drilling f luid alone, in the form of Rate of Penetration (ROP) gains through the sal t interval, has the industry trending to drill these riserless sections wi th the use of PDC drill bits on Rotary Steerable System (RSS) drilling ass emblies. \r\nNew robust high torque capacity top drives, stronger drillpip e connections, larger diameter RSS tools and improved mud programs have al l largely contributed to this step change in drilling performance. Additio nally, evolved bit and BHA design, efficient operating parameters, improve d hydraulics and vibration prediction modeling have all aided in the succe ss of these runs.\r\nAlthough this emerging new trend reduces drilling tim es and associated cost, experience has shown there are multiple challenges that must be overcome to complete a successful run in a single trip. The se challenges vary from well to well and include, but are not limited to: BHA steerability, rig equipment limitations, efficient operating parameter s, identification of both sediment and salt formations, hole cleaning and hydraulics, salt creep, drilling fluid displacement, drillpipe torque limi tations, stabilization placement, lateral/ torsional BHA vibrations, and o thers.\r\nThis presentation will concentrate on the multiple aspects of ul tra-large diameter riserless PDC bit drilling applications and the conside rations that have been used to optimize them. Prior SPE papers and data f rom previous deepwater GOM case histories were heavily researched and scru tinized to support the conclusions provided within the body of this paper. Together with industry experience available, these findings have resulte d in a set of defined recommendations, providing operators with a guide to justify a lower cost per foot approach through the potential reduction of drilling time in these challenging applications.--- This iCal file does * NOT* confirm registration.Event details subject to change. ---\r\n\r\n--- By Tendenci - The Open Source AMS for Associations ---\r\n UID:uid2518@spegcs.org SUMMARY:Drilling: Cost Effective Ultra-Large Diameter PDC Bit Drilling in Deepwater Gulf of Mexico DTSTART:20140319T163000Z DTEND:20140319T180000Z CLASS:PUBLIC PRIORITY:5 DTSTAMP:20240329T102948Z TRANSP:OPAQUE SEQUENCE:0 LOCATION:Greenspoint Club X-ALT-DESC;FMTTYPE=text/html:
Ultra-large diameter Polycrystalline Diamond Compact (PDC) bit drilling is a fast growing cost -effective solution in high-tier deepwater drilling operations in the U.S. Gulf of Mexico (GOM) where salt is encountered in the shallow part of the wellbore. \; Conventional design called for roller cone (RC) (IADC Co de 111-115) drill bits on positive displacement motors (PDM) in these ultr a-large diameter intervals. \; Cost savings on drilling fluid alone, i n the form of Rate of Penetration (ROP) gains through the salt interval, h as the industry trending to drill these riserless sections with the use of PDC drill bits on Rotary Steerable System (RSS) drilling assemblies.  \;
New robust high torque capacity top drives, stro nger drillpipe connections, larger diameter RSS tools and improved mud pro grams have all largely contributed to this step change in drilling perform ance. Additionally, evolved bit and BHA design, efficient operating parame ters, improved hydraulics and vibration prediction modeling have all aided in the success of these runs.
Although this emergi ng new trend reduces drilling times and associated cost, experience has sh own there are multiple challenges that must be overcome to complete a succ essful run in a single trip. \; These challenges vary from well to wel l and include, but are not limited to: BHA steerability, rig equipment lim itations, efficient operating parameters, identification of both sediment and salt formations, hole cleaning and hydraulics, salt creep, drilling fl uid displacement, drillpipe torque limitations, stabilization placement, l ateral/ torsional BHA vibrations, and others.
This& nbsp\;presentation will concentrate on the multiple aspects of ultra-large diameter riserless PDC bit drilling applications and the considerations t hat have been used to optimize them. \; Prior SPE papers and data from previous deepwater GOM case histories were heavily researched and scrutin ized to support the conclusions provided within the body of this paper.&nb sp\; Together with industry experience available, these findings have resu lted in a set of defined recommendations, providing operators with a guide to justify a lower cost per foot approach through the potential reduction of drilling time in these challenging applications.