The well is drilled 24" to 318 ft and 17.1/2" to 4,900 ft. It is cased with 18.5/8" to 312 ft and 14" to 4,800 ft. It is completed with 9.5/8" 53.5 lb/ft P110 casing suspended from the wellhead. The 9.5/8" casing is sealed with a packer and drillpipe retrievable plug at 4,708 ft.

A 1" coiled tubing line penetrates the wellhead and is ported into the 9.5/8" casing near TD.

Two surface read-out Panex pressure and temperature gauges are installed in the 9.5/8" : 14" annulus and ported into the 9.5/8" casing. These are situated at 4692 ft and 2323 ft DD below RT.

The 9.5/8" casing, coiled tubing and pressure gauges are retrievable. Their retrieval and subsequent re-installation would take in the order of six working days. The removal of the 9.5/8" casing would permit access to a 12.1/4" drift wellbore. This would also be required before any additional drilling could be undertaken in this well.

Because of a strong natural deviation trend, the well-deviates to the SSW. It reaches a maximum deviation of 12 degrees at a depth of approximately 2,500 ft. There are no significant dog-legs in the well. The well surveyed with the Eastman Ferranti FINDS tool. More detailed information is available on request.

High Pressure Well Summary



• Elevations: Rotary table - ground level = 30 ft. Rotary table - top of wellhead C section = 32.52ft. Rotary table - base of cellar = 39.50 ft.
  
• Total Depth: 4,900 ft (Driller's Measured Depth) from rotary table.
  
• Well Status: Completed with 9.5/8" casing as removable inner string.
• Hole Sizes: 39.4" and 35.4" augered to 91 ft. 24" drilled to 318 ft. 17.1/2" drilled to 4,900 ft.
• Wellhead: Vetco Gray 10,000 psi flanged system
• 'A' section: CWCT 18.5/8" socket weld bottom x 21.1/4", 2,000 psi RX-73flange top.
• 'B' section: CWCT 14" x 21.1/4", 2,000 psi RX-73 flange bottom x 13.5/8�, 5,000 psi BX-160 flange.
• 'C' section: 9.5/8" x 13.5/8", 5,000 psi BX- 160 flange bottom x 11�, 10,000 psi BX-158 flange top.
• Casing: 30" conductor pipe: 1" wall, X-52, welded. Shoe depth 91ft, cemented back to the cellar floor.18.5/8"
• surface casing: 87.5lbs/ft, X-56, GEM. Shoe depth 312ft, cemented back to 47ft, later cemented to cellar floor.
• 4" intermediate casing: 37 - 350ft, 86 lbs/ft, C-95 Mannesman HPC-12. 350 - 4,800 ft 86 bls/ft, L80 British Steel GEM.
• Shoe depth 4,800 ft, cemented back to 400 ft (loss zone). Squeezed from surface with 78 bbls slurry - no pressure increase obtained The 14" casing was cleaned out with a 12.1/4" bit and scrapers to 4,750 ft PBTD. The 14" casing was pressure tested to 3,000 psi.
• Completion: 9.5/8" casing: 35 - 45 ft, 53.5 lbs/ft, P110, Hydril MAC 45 - 853 ft, 53.5 lbs/ft TAC 110, Hydril MAC 853 - 4713 ft, 53.5 lbs/ft, P110, Hydril MAC 1" coil tubing, 0.087" wall, QT-70, with 0.75", 0.08" wall seamless stainless steel tubing through wellhead.

Pressure Gauges