Tech Report: Saltel Expandable Steel Patches Overlapped to Repair Damaged Screen in Offshore Well

Six patches conveyed and set via coiled tubing in long horizontal well with damaged sand screens deeper than 4,000 m [13,100 ft], Caspian Sea.

Saltel Expandable Steel Patches Overlapped to Repair Damaged Screen in Offshore Well

Publication Date: 01/22/2018

An operator with an openhole gravel-packed well determined that screens in two sand-producing zones were damaged. To avoid pulling the completion or plugging back the whole lateral, the operator wanted to patch the damaged sections measuring 48 and 24 m [157 and 79 ft], respectively. Coiled tubing (CT) was available to run the patches but had never been used at this depth. In addition, the riser length limited the maximum patch length to 14 m [46 ft]. Expandable steel patches from Saltel, a Schlumberger company, were overlapped to patch the screens.




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