In order to meet the demand for drilling equipment in ultra-deep oil and gas exploration and development,combined with the experience of Beijing Petroleum Machinery Co.,Ltd.in research and develop-ment of top drives,a 15 000 m top drive was developed.Its main technical parameters were determined based on the technical parameters of the 15 000 m drilling rig.Its overall structure was designed according to the require-ments of drilling technology,and the structures of key modules were optimized using the methods such as modular design,theoretical calculation and finite element analysis.Real-time monitoring and maintenance technology,one-key collaborative control technology and automatic lubrication technology were analyzed.Finally,a bench test on the performance of the top drive system was performed.The results show that all performance indicators of the system meet the design requirements.It can start,stop and operate smoothly,and control accurately.It is also characterized by qualified assembly,and high automation and intelligence levels.These features allow the system to well accommodate the 15 000 m drilling conditions,with improved drilling efficiency and safety.The develop-ment of 15 000 m top drive provides a technical reference for further research and application of ultra-deep drilling technologies and equipment.
ultra-deep well drilling rigtop drivestructural optimizationfinite element analysisbench testcollaborative control
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