Notice of RetractionResearch of top drive drilling equipments simulation

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

As drilling technology improves, deep well drilling rig and offshore oil drilling at home and abroad are mostly equipped with top drive drilling devices. But drilling simulators at home and abroad are simulation against traditional rotary drilling system, which is out of proportion to the present situation. So we need to develop new drilling simulators based on top drive drilling system urgently to meet the training requirements of the drilling operators and the technical skill training requirements of engineers and technicians. This subject is mainly to complete the research of the mathematical models and to design the hardware and software system of drilling simulators. After trial, the application of this simulator in oilfield is good and it has a broad development prospects.