Single bore packer with dual flow conversion for gas lift completion
This patent describes a hydraulic well packer adapted to be set against the bore of a well casing. It comprises a body mandrel; an annular seal assembly mounted on the body mandrel including at least one resilient annular seal element movable generally radially between a non-interfering retracted position to an extended configuration in which the seal element is engageable against a well casing bore; an anchor slip assembly mounted on the body mandrel including a plurality of anchor slips, the anchor slips being movable generally radially between a retracted, non-interfering position and an extended position in which the anchor slips are engageable against a well casing bore; a hydraulic actuator mounted on the body mandrel including a setting cylinder movable mounted for slidable, sealing engagement against the body mandrel and engageable with one of the annular seal engagement against the body mandrel and against the bore of the setting cylinder, thereby defining a variable volume pressure chamber for receiving hydraulic fluid; a tubular link member coupling the annular piston to the anchor slip assembly, the tubular link member being radially spaced from the body mandrel, thereby defining a receiver pocket; and, an internal ratchet slip mounted on the body mandrel for slidable movement, the internal ratchet slip being disposed within the receiver pocket.
- Assignee:
- Otis Engineering Corp., Carrollton, TX (United States)
- Patent Number(s):
- A; US 5113939
- Application Number:
- PPN: US 7-579371
- OSTI ID:
- 5054615
- Country of Publication:
- United States
- Language:
- English
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