| 摘要 |
A well completion method provides for monitoring of reservoir pressure and saturation levels for two reservoirs 13. 15 from a single monitoring well. The well completion extends vertically through an upper and a lower reservoir 15. The well is cased, cemented, and perforated across the lower reservoir 15. A cement free zone 38 is formed by cementing the casing string 17 within the wellbore 11 above an external casing packer above the upper reservoir 13. The casing string 17 is perforated to allow fluid from the upper reservoir 13 to flow through the cement free zone 38. A tubing string 47 is landed and set within the casing string 17. The tubing siring 47 is sealed above and below the perforation at the cement free zone 38 to prevent communication between fluid from the upper reservoir 13 and the lower reservoir 15. The upper reservoir 13 is monitored at the cement free zone 38, and the lower reservoir 15 is monitored below an end of the tubing string 47. |
