TransGlobe Energy Corporation Announces Godah #5 and Osaylan #3 Results, Yemen

Source: www.gulfoilandgas.com 5/31/2007, Location: Middle East

Block 32: The Godah #5 appraisal well was drilled to a total measured depth of 1,886 meters and completed as a producing Qishn S1-A oil well. Godah #5 was drilled at a location approximately 2.0 kilometers east of the nearest well.

Godah #5 is currently producing 350 barrels of oil per day and 39 barrels per day of water from a 5 meter interval in the Qishn S1-A sand. The Godah #5 well successfully extended the pool boundary two kilometers to the east and doubled the areal extent of the Godah field.

The drilling rig has moved to a development location at Godah #6, approximately 1,000 meters east of Godah #2. Drilling commenced on Godah #6 on May 25, 2007 and is expected to take three to four weeks to complete, at which time the drilling rig is scheduled to go to a non-owned adjacent block. A second drilling rig is scheduled to arrive on Block 32 for a two-well program starting with development well Godah #7 in early June. Godah #7 is located approximately 770 meters east of Godah #6.

Both Godah #6 and Godah #7 can be tied into the existing facilities and placed on production shortly after completion.

Block S-1: Osaylan #3 reached a total measured depth of 1,201 meters and was completed as an oil well. The Osaylan #3 was directionally drilled to evaluate the Alif sandstone formation producing at Osaylan #2 and to evaluate the lower Lam sandstones in a structurally higher position than at Osaylan #2.

A new oil zone was discovered in the lower Lam sandstones which swabbed/flowed 153 barrels of 43 API oil and 116 barrels of water from a 32 meter perforated interval during a 24 hour period. The test confirmed a new oil pool in the lower Lam formation, with an estimated 20 meter oil column in Osaylan #3. The Osaylan lower Lam is similar to the lower Lam at the An Nagyah field which is developed using Horizontal wells to enhance well productivity and increase oil recovery. It is expected that the Osaylan lower Lam oil pool will be developed with horizontal wells.

The primary target Alif sandstone was then perforated over a 13 meter interval and swab/flow tested in combination with the lower Lam formation. The combined intervals swab/flowed 337 barrels of 43 API oil and 84 barrels of water in a 27 hour period.

The lower Lam was then isolated to reduce water production leaving the well as an Alif oil well. The Alif swabbed tested water free oil and gas. The Alif zone is unable to flow on a continuous basis due to formation damage which occurred during the completion. The well has been suspended as a potential Lam and Alif oil well pending a review of stimulation alternatives for the damaged formation. It is expected that future stimulation work would be conducted using a completion/service rig, later this year.

The drilling rig is currently moving to An Nagyah #26 to drill an upper Lam A horizontal development well.


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Related Categories: Artificial Lift  Cementing, Stimulation  Directional Drilling  Drilling  Drilling Engineering & Equipment Systems  Enhanced Oil Recovery  General  Logging, Perforating, Testing  Offshore Drilling  Reservoir/Completion Consultants  Workover & Well Services  Workover Rigs/Services 

Related Articles: Artificial Lift  Cementing, Stimulation  Directional Drilling  Drilling  Drilling Engineering & Equipment Systems  Enhanced Oil Recovery  General  Logging, Perforating, Testing  Offshore Drilling  Reservoir/Completion Consultants  Workover & Well Services  Workover Rigs/Services 


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