Pan Orient's NSE-A4 Production in Thailand at 830 BOPD
21-NOV-2008 Intellasia | rigzone.com
Nov 21, 2008 - 7:00:00 AM
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NSE-A4 appraisal well (60% working interest and operator)
The NSE-A4 appraisal well was completed and put on production at a rate of approximately 830 bopd (0.05% water cut) after a number of difficulties related to the severity of the fracturing of the main volcanic reservoir which resulted in the loss of over 64,000 barrels of drilling fluid while attempting to complete the well on three side tracks. In the final completion, the production liner was unable to be set through the reservoir section after encountering an obstruction above the reservoir interval. A drill bit was attached to the end of the production tubing and drilled through to the top of the main reservoir. This production rate is noteworthy given that oil is being produced through production tubing with a drill bit still attached to the end of the tubing.
NSE-D1 appraisal well (60% working interest and operator)
After the installation of a larger diameter tubing pump, NSE-D1 is currently producing at an increased stabilised rate of approximately 1,063 bopd with an average water cut of approximately 0.28%. The NSE-D1 appraisal well, located approximately 455 metres north of the NSE-B drill pad, was originally announced on November 7, 2008, as producing 710 bopd prior to the installation of the larger pump.
NSE-D2 appraisal well (60% working interest and operator)
The NSE-D2 appraisal well encountered the top of the main volcanic reservoir at a depth of depth of 754 metres true vertical depth (TVD) approximately 330 metres north of the NSE-D1 location. Approximately 34 metres of highly fractured volcanic reservoir was drilled, with mud losses of approximately 1,200 barrels. The well has been put on test, flowing mainly gas with some oil, indicating close proximity to an interpreted oil water contact. Rig 14 is currently moving back onto this location to drill a side track approximately 10 to 15 metres structurally lower into the oil leg, at which time testing is expected to resume.
NSE-D3 appraisal well (60% working interest and operator)
The NSE-D3 appraisal well was drilled into the main volcanic reservoir at a depth of approximately 823 metres TVD and a sub surface location approximately 315 metres north west of the NSE-D1 location. A highly fractured volcanic reservoir section was encountered that resulted in over 6,000 barrels of drilling fluid losses. An 8 metre highly fractured oil stained core was cut through the main reservoir objective. A slotted liner is currently being set through the volcanic reservoir section and testing is anticipated to commence shortly.
NSE-C1 appraisal well (60% working interest and operator)
The NSE-C1 appraisal well encountered the top of the main volcanic objective at a depth of 775 metres TVD at location 1,248 metres east of the NSE-B drill pad in area targeting possible reserves as defined in the year end 2007 NI 51-101 compliant reserves report. Lost circulation was encountered within the main volcanic target with drilling fluid losses of approximately 1,900 barrels. Testing to determine the hydrocarbon potential of the volcanic reservoir at this location is anticipated to commence shortly.
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