| 摘要 |
A gas or oil well tubing 1 has an annular packer 3 mounted thereon, wherein the annular packer 3 is formed from an eutectic alloy. The packer 3 may have conduits 10 to permit flow through the packer 3. The packer 3 may be disposed on the inside our outside of the tubing 1 and can be used to seal a leak in an oil well. The packer 3 may be formed from segments. |
