Current Articles02Atocha Project Update - HM Brian No.1...

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02
Atocha Project Update - HM Brian No.1 Perforated
OilOnline Manager posted on 12/2/2009

Perforation of the HM Brian No.1 well has been successfully completed. An isolation packer assembly along with the tubing conveyed perforating guns to perforate the well were lowered into the well bore and were pressure tested prior to perforation resulting in successfully isolating and sealing the casing leak.

On perforation the well produced natural gas and built up pressure, however not enough to produce back approximately 90 barrels of completion fluid placed in the well by the operator for the logging and perforation procedures. Further pressure testing resulted in a gradual accumulation of 10,000 psi. The fluid creates pressure against the formation, thus restricting the flow of natural gas. The slow pressure build up also confirms the tight nature of the formation and confirms the possibility of fracture stimulating the formation, which was originally planned and budgeted for at the beginning of the reentry. Crews are currently producing the load water back to surface mechanically, reducing the artificial pressure from the formation to allow it to produce naturally. Once the load water has been produced back to surface, a work over procedure will begin whereby acid is injected into the formation to increase porosity and permeability. Results from the acidizing procedure will give us valuable information to assist in designing our fracture stimulation plan.
The process of producing the load water back to surface and acidizing the formation could take up to a week at which time further updates will be announced.