Heavy oil pumping unit well polished rod lifting buffer device and using method
By designing a polished rod lifting and buffering device for heavy oil pumping wells, and utilizing the combination of a rotating sleeve and a rubber pad, the problem of frequent disassembly and assembly of the polished rod clamps was solved, achieving stable lifting and buffered lowering of the polished rod, reducing the labor intensity and safety hazards of operation.
CN119933537BActive Publication Date: 2026-06-02PETROCHINA CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2023-11-01
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
In heavy oil production, the polished rod clamps need to be frequently disassembled and reassembled, which is labor-intensive and poses safety hazards.
Method used
Design a polished rod lifting and buffering device for heavy oil pumping wells, including a clamp body, lifting components and packing box. The polished rod is slowly lifted and lowered by rotating the rotating sleeve. The polished rod is stably clamped and buffered when lowered by the cooperation of rubber pads and adjusting bolts.
Benefits of technology
This reduces the frequent disassembly and assembly of the polished rod clamps, lowers labor intensity, improves operational safety, avoids impact between the polished rod and the wellhead, and achieves rapid, stable, and efficient polished rod lifting.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119933537B_ABST
Abstract
The present application relates to the technical field of tools on well, and is a kind of thickened oil pumping unit well polished rod lifting buffer device and method, the former includes polished rod and the clamp body, lifting assembly and packing box sequentially arranged outside from top to bottom, the clamp body includes front clamp and rear clamp, the right part of front clamp and the right part of rear clamp are hinged together, and the left part of front clamp and the left part of rear clamp are detachably fixed and installed together;The steps of the latter are as follows: (1) the upper support cylinder, rotating sleeve and lower support cylinder are installed outside the polished rod through the first loading long slot, the second loading long slot and the third loading long slot respectively.The present application is reasonable and compact in structure, and is ingenious in design, the upper support cylinder is lifted up by rotating the rotating sleeve, and the lifting of the clamp body and the polished rod is completed;By loosening the adjusting bolts arranged on the front and rear sides, the polished rod is slowly lowered by its own gravity under the friction force of the front and rear rubber pads, and has the characteristics of rapidness, stability and high efficiency.
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