Vintage Petroleum Announces Another Successful Well in Yemen

Source: www.gulfoilandgas.com 9/20/2004, Location: Middle East

Tulsa, Oklahoma – Vintage Petroleum, Inc. announced today that the An Nagyah #10 well in the Republic of Yemen has tested light (42 degree API) oil from the sub-salt Upper Lam formation. The well, an infill well between the #6 and #2 wells, was drilled to continue the evaluation of the sub-salt Lam formation and is the sixth consecutive successful well drilled at the company’s An Nagyah field this year.

The An Nagyah #10 well was drilled to a total depth of 3,753 feet (1,144 meters). Electric log analysis indicates a gross interval of 108 feet (33 meters) that is oil bearing in this well, and an 85 foot (26 meter) interval in the Upper Lam formation was perforated between 3,379 and 3,465 feet (1,030 to 1,056 meters). The perforated interval was tested at a stabilized flow rate of 1,547 barrels per day of light oil and 604 thousand cubic feet of natural gas per day on a 36/64 inch choke with 375 psi flowing tubing pressure. No water was produced during the test period. The An Nagyah #10 well has been equipped for early production via trucking and began producing early this week. With the addition of the An Nagyah #10 well, combined gross productive capacity from the An Nagyah wells will be approximately 5,000 barrels (2,600 net) of oil per day.

With testing complete at the An Nagyah #10, the drilling rig has been moved to drill the first horizontal well in the An Nagyah development program, well #11, which was recently initiated. Based on engineering analysis, horizontal drilling could significantly enhance the field’s productive capacity.

In addition to the current drilling activities, a workover rig will be mobilized early in the fourth quarter in order to workover the An Nagyah #2 well and complete the Harmel #2exploration well. The An Nagyah #2 well was the discovery well for the Lam reservoir and has been shut-in since testing was completed early last year. Since testing of well #2 included tests in both the oil leg as well as the gas cap, the objective of the workover will be to seal off the gas cap perforations and complete the well as a development well in the oil column.

An Nagyah production is being trucked to a nearby facility until the permanent pipeline and processing facility are completed next year. Vintage will spend approximately $17 million during 2004 for design and construction of a pipeline and processing facility at An Nagyah, anticipated to be completed in the second quarter of 2005, which will allow the production of greater volumes and streamline transportation. The processing facility is being designed to process 10,000 gross (net 5,200) barrels of oil per day, with the potential to expand as additional capacity is warranted.

After An Nagyah #2 operations are complete, the workover rig along with stimulation equipment will be moved to the Harmel #2 exploration well to begin the completion operations. Harmel #2 was drilled earlier this summer to delineate and core the supra-salt oil reservoirs offsetting the discovery well, Harmel #1. The cores from Harmel #2 have been analyzed, and current plans encompass stimulating the supra-salt reservoirs in both the Harmel #1 and #2 wells and placing both wells on production. Production and test data obtained from the #1 and #2 wells will help to determine the commerciality of the supra-salt heavy oil reservoirs.



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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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