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| Drilling Activity for July 31, 2009 |
| Well: APS Cholla Pilot Test Well |
Rig: WDC Drilling |
| Activity: Mobilization & Rig Up |
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| Rig-up operations were finalized and a safety audit was conducted by Sandia Technologies, Errol L. Montgomery & Associates, and WDC personnel on July 31, 2009. Drilling operations began at 2:00 p.m. Drilling progressed from 47 ft to 71 ft. |
| Observations |
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- Daily activities summarized are from midnight to midnight.
- 6:00 am August 1, 2009 update: Drilling at 89 ft.
- Drilling measurements are referenced from the kelly bushing (KB) of Bearcat drilling rig, which will be on site for the deeper portion of the well (12 ft above grade level)
- Conductor pipe: 14" OD, set at 47 ft below the KB
- Drilling progressing slowly due to lack of weight on bit. Rate of penetration will increase as additional drill collars are added to the bottom hole assembly.
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