Single-set CT straddle packers successful in Alaska

At Prudhoe Bay, Alas., nonrig tubing repairs have become a viable alternative to rig workovers (RWOs). This type of repair provides economic remediation for wells with production tubing by “A” annulus communication.Wireline-set retrievable straddles can eliminate tubing communication at a significant cost savings. They are particularly attractive in areas where RWO cost is significant, such as offshore, remote, or arctic locations. The advantage of tubing straddle repair over a conventional RWO is that there is no need to pull tubing, resulting in the well being returned to service faster.Typical straddle deployment costs are less than 5% of the costs for tubing replacement wi...

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