| Drilling/Completion Operations | Form: (02 ) 400375857 4/29/2013 | Prior to drilling operations, Operator will perform an anti-collision scan of existing offset wells that have the potential of being within close proximity of the proposed well. This anti-collision scan will include definitive MWD or gyro surveys of the offset wells with included error of uncertainty per survey instrument, and compared against the proposed wellpath with its respective error of uncertainty. If current surveys do not exist for the offset wells, Operator may have gyro surveys conducted to verify bottomhole location. The proposed well will only be drilled if the anti-collision scan results indicate that there is not a risk for collision, or harm to people or the environment. For the proposed well, upon conclusion of drilling operations, an as-constructed gyro survey will be submitted to COGCC with the Form 5. |
| Drilling/Completion Operations | Form: (02 ) 400375857 4/29/2013 | Encana will comply with the “COGCC Policy for Bradenhead Monitoring During Hydraulic Fracturing Treatments in the Greater Wattenberg Area”, dated May 29, 2012. |
| Drilling/Completion Operations | Form: (02 ) 400375857 4/29/2013 | Encana acknowledges that the Anadarko owned well, Elmer Hergenreder #1 - API # 05-123-07620 is 149’ away from the proposed Qualls 3B-28H. Anadarko has agreed to P&A this well before Encana does any stimulation to the wellbore of the Qualls 3B-2H. Encana is aware that this well must be plugged by that time and will make sure to follow through with Anadarko that the work is complete. |