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Keywords: ubd
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Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, October 24–26, 2011
Paper Number: SPE-148438-MS
...Formation pressure analysis Abstract There are several instruments with which wellbore fluid pressure and flow parameters can be measured during underbalanced drilling(UBD). However, the real-time formation pressure test while drilling is yet a great challenge. Therefore, a much more precise...
Proceedings Papers

Paper presented at the Middle East Drilling Technology Conference & Exhibition, October 26–28, 2009
Paper Number: SPE-125685-MS
... Abstract Under-Balanced Drilling (UBD) practice is an optimized drilling approach, aiding in more reservoir recovery, too. Considering long-period production from some of Iranian oilfields and their correspondent pressure decline, it seems more necessary to replace UBD with the Conventional...
Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, September 12–14, 2005
Paper Number: SPE-97317-MS
... prevents flowing of HC's into wellbore after initial well completion especially in the depleted fractured Iranian reservoirs. Underbalanced drilling (UBD), with a reduced exerted pressure down in the wellbore avoids the build up small solids being deposited on the sides of the hole, it also prevents...
Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, October 20–22, 2003
Paper Number: SPE-85317-MS
... that predicted from logging while drilling (LWD) evaluation. Underbalanced drilling (UBD) was identified as a method of overcoming this problem. UBD trail wells have been drilled using 2 different UBD techniques (Concentric casing and Drill pipe gas injection). To date 18 UBD horizontal wells have been put...
Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, October 20–22, 2003
Paper Number: SPE-85318-MS
... Abstract The Al Furat Petroleum Company (AFPC) has achieved a step-change in drilling performance since the introduction of Under-Balanced Drilling (UBD) in September 2002 in the Omar field. To date 7 wells have been drilled using the UBD technique resulting in up to 55% reduction in drilling...
Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, October 20–22, 2003
Paper Number: SPE-85319-MS
... Abstract Underbalanced drilling (UBD) technology has been gaining in popularity around the world because of its capability to reduce or eliminate formation damage, to increase production rates, and in some cases, increase the volume of recoverable reserves. The technology is applicable...

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