Invention Grant
- Patent Title: Rod pump stuffing box
- Patent Title (中): 杆泵填料函
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Application No.: US11761258Application Date: 2007-06-11
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Publication No.: US07861771B2Publication Date: 2011-01-04
- Inventor: Paul McCreedy , Merlin Thiry , Ray Neudorf
- Applicant: Paul McCreedy , Merlin Thiry , Ray Neudorf
- Applicant Address: US TX Houston
- Assignee: Smith International, Inc.
- Current Assignee: Smith International, Inc.
- Current Assignee Address: US TX Houston
- Agency: Osha Liang LLP
- Main IPC: E21B19/00
- IPC: E21B19/00

Abstract:
A stuffing box for sealing around a polished rod in a well including a cylindrical connector for receiving the polished rod, a packing member having top and lateral surfaces and wherein the packing member is concentrically disposed around the polished rod, a body concentrically disposed around the packing member and sealing engaging the cylindrical connector, and wherein the body may be selectively moved to expose the top and lateral surface of the packing members is disclosed. A method of repairing, redressing, or replacing packing members of a stuffing box including providing a stuffing box at a wellhead, manipulating the stuffing box such that top and lateral surfaces of the packing members are exposed, removing the packing members, and redressing the stuffing box with new packing members is also disclosed.
Public/Granted literature
- US20070284115A1 ROD PUMP STUFFING BOX Public/Granted day:2007-12-13
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