| 摘要 |
A device (2) for latching onto a downhole object (7) is claimed. The device includes a biasing member (110) disposed about the mandrel (48) and a toilet member (80). The mandrel and the collet member cooperate to form a chamber. A locking member (160) locks the toilet and the mandrel together. The device may further comprise an activation port so that the housing member holds the detent member within a groove. The object may be a stuck downhole tool, a downhole packer, or some other type of apparatus used in the drilling, completion, and/or production of wells. Also disclosed is a method of engaging a downwhole object with the spear device (2).
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