Pan Orient Drills Ahead at Its Thailand Appraisal Wells

Pan Orient has provided an update for its Thailand operations.


NSE-F1 Appraisal Well

The NSE-F1 appraisal well is currently drilling ahead horizontally within the main volcanic reservoir target at a location 850 meters northwest of the producing NSE-C1 well and outside the reserve envelope of the NSE central fault compartment as defined in the 2007 year end reserve report. NSE-F1 is targeting a large area of prospective resource potential that was defined on 3D seismic. Drilling is anticipated to be completed in the next 10 days with testing, if justified, to take another 10 days at which time results will be announced.

NSE-G1 Appraisal Well

The NSE-G1 appraisal well is located 538 meters northwest of the NSE-D drill pad and is targeting the main volcanic reservoir along the boundary of the central and north fault compartments, with the intent of extending the productive limits of the NSE central fault compartment if successful. Casing is currently being set just above the main target zone with drilling anticipated to be completed within the next 10 days and testing, if justified, to take an additional 10 days.

NSE-E2 Appraisal Well

The NSE-E2 appraisal well, targeting potential volcanic reservoirs approximately 365 meters south east of the NSE-E1 discovery well, failed to encounter the main volcanic objective, which had been faulted out at this location, but encountered a deeper, oil stained volcanic target approximately 25 meters thick. Testing of this deeper potential volcanic reservoir resulted in the recovery of approximately 15 barrels of oil and no water. Subsequent seismic interpretation suggests the deviated well bore crossed the main NSE bounding fault and encountered this deeper volcanic below the main producing zone of the NSE central fault compartment. Although the oil rate is sub commercial at this particular location, this deeper volcanic zone will be evaluated by future drilling and a side track will be drilled from the existing NSE-E2 well bore targeting the main volcanic zone that is currently producing at approximately 800 bopd in the NSE-E1 discovery well.

The NSE-E1 and E2 wells were designed to test an approximately 1 square kilometer structural closure located on the down thrown side of the main NSE field central fault compartment called NSE Central B. There had been no reserves, of any category, assigned to the NSE Central B prospect in the year end 2007 NI51-101 compliant reserves report.

NSE-D2ST1 Appraisal Well

The second sidetrack of this well, NSE-D2ST2, has now encountered the oil leg of the main volcanic reservoir and will be put on electrical submersible pump within the next seven days to determine the rates at which it is capable of flowing oil.

L44-V Appraisal Well

The L44-V appraisal well was drilled from a surface location approximately 1.3 kilometers south west of the Bo Rang-1 gas discovery. L44-V targeted a potential down dip oil leg within a volcanic reservoir that tested 5.5MMcfg/d at the structurally higher Bo Rang-1 well, which was drilled by an earlier operator of the L44 concession area. The main volcanic objective was encountered at a TVD of approximately 720 meters and penetrated an approximately 55 meter thick volcanic section that had oil shows and very high mud gas spikes of up to 33%, exhibiting both heavy (C5) and light (C1) hydrocarbons. A shallower secondary volcanic objective was also encountered at a depth of approximately 500 meters TVD with mud losses while drilling of approximately 100 bbls in combination with a minor gas kick.

Testing of the lower and upper volcanic targets has been completed with no recovery of oil, gas or water (no permeability) despite the encouraging oil shows and mud gas readings observed while drilling. A follow up location is currently being constructed that will twin the original Bo Rang-1 well and test the oil potential of a 50 meter thick volcanic section that was penetrated below the original 25 meter thick gas bearing volcanic. It is this targeted deeper section that exhibited oil shows and elevated mud gas readings during the drilling of L44-V.

L44-CD1 Appraisal Well

L44C-D1 was drilled to target depth and encountered a heavily fractured volcanic section with severe lost circulation. Subsequent testing resulted in the recovery of 100% water. Future drilling will continue to target this volcanic reservoir underlying the Wichian Buri oilfield further up dip towards the L44/L33 concession boundary at a location currently under construction 3.2 kms to the northeast.


Our Privacy Pledge

Most Popular Articles

From the Career Center
Jobs that may interest you
Well Monitoring Specialist
Expertise: WellSite Supervisor
Location: Houston, TX
Chief Mechanic (6th Gen Drillship)(Contract)
Expertise: Rig Mechanic
Location: Houma, LA
ET (Deepwater Drillship)
Expertise: Rig Electrician
Location: Houma, LA
search for more jobs

Brent Crude Oil : $51.46/BBL 0.61%
Light Crude Oil : $50.52/BBL 0.64%
Natural Gas : $2.83/MMBtu 5.35%
Updated in last 24 hours