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Water Shut Off - Vertical
Requirement:
- Open hole, vertical completion producing excess water
Solution:
- Run Inflatable Bridge Plug (IBP) on work string
- Place cement plug above IBP
- Restore well to production
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West Texas:
Challenge:
- An oil field producing from a reef type carbonate formation exhibits a continual rise in the oil/water contact.
- Wells are vertical, open hole completions at an average depth of 2,500’ and the field has both water and gas injection for pressure maintenance and improved recovery.
Solution:
- An inflatable bridge plug was run and set 5’ above the O/W contact and a 5’ cement plug placed above the IBP.
Value Added:
- The well was returned to production with water cut reduced from 90% down to 10% and total fluid production increased by more than 1,000 BPD.
- The workover was achieved using a hydraulic snubbing unit to minimize formation damage typically associated with loss of produced brine into the high permeability formation.
- Some wells were completed without the cement plug to allow moving and repositioning the tool as the OW contact rises.
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