高位后折式石油钻机K型井架的制作方法
By replacing the vertical mounting method with a horizontal mounting method, and through precise processing and testing, the manufacturing problem of the K-type derrick for high-position rear-folding oil drilling rigs was solved, ensuring the lifting and rear-folding accuracy of the derrick and achieving an efficient and safe production process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA NAT PETROLEUM CORP
- Filing Date
- 2022-10-09
- Publication Date
- 2026-07-17
AI Technical Summary
How to manufacture a high-position, rear-folding K-type derrick for oil drilling rigs under existing conditions, so that its relevant dimensions meet the requirements after lifting, and the top section can be folded back at 90°, while ensuring that the straightness and verticality of the wellhead center and the column meet the process requirements.
The horizontal mounting method is adopted instead of the vertical mounting method. Each section of the derrick is processed separately first, and then the uppermost section is used as the reference for connection. Through the fixation of the tooling support and precise testing, the coaxiality and dimensional error are ensured to be within the allowable range. Finally, the assembly and welding are completed in the horizontal mounting state to ensure the coaxiality of the rotating point ear plate hole and the overall connection accuracy.
It enabled the derrick to be raised smoothly and bent 90° backward, meeting the straightness and verticality requirements of the process, reducing the difficulty of operation and production costs, and improving safety and work efficiency.
Smart Images
Figure CN117884840B_ABST