A device and method for interlocking interlocking management and control of wellhead pipe strings of drilling rig and workover rig

Abstract

The invention discloses a wellhead pipe string handover interlock management and control device for a drilling rig and a workover rig. The pipe string interlock control system includes a PLC controller, an industrial Ethernet gateway, a DC power supply, a PLC controller, an industrial Ethernet gateway, The DC power supply is installed in the control box; the DC power supply is responsible for converting the AC alternating current into 24V DC control power to supply power to the PLC controller and industrial Ethernet gateway; the PLC controller is responsible for the control program in the string interlock control system Logic operation; the industrial Ethernet gateway is connected with the hydraulic elevator electric control, power slip electric control, winch electric control, man-machine interface unit and PLC controller through PROFINET communication cables. The invention also discloses a method for interlocking and interlocking management and control of wellhead pipe strings of a drilling rig and a workover rig. The above-mentioned device is used to realize process control. The device of the invention realizes the safety interlock of equipment operation in the handover process of the wellhead pipe string; the method can automatically judge whether the pipe string is handed over successfully.

Description

technical field [0001] The invention belongs to the technical field of electrical control of petroleum machinery, and relates to a wellhead pipe string handover and interlock control device for a drilling rig and a workover rig, and also relates to a wellhead pipe string handover and interlock control method for a drilling rig and a workover rig. Background technique [0002] Oil drilling rigs and workover rigs handle drill pipes, drill collars, and tubing (collectively referred to as pipe strings) throughout the entire drilling and workover process. For drilling conditions, before drilling, the pipe string needs to be transported from the ground storage yard to the drill floor surface and the stand is stored on the stand; during the drilling process, frequent tripping is required, and this process involves placing the pipe string between the stand discharge area and the wellhead After the completion of drilling, the pipe string needs to be lifted out of the well and disasse...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a wellhead pipe string handover interlock control device for drilling rigs and workover rigs, which solves the problem that the existing technology cannot automatically judge whether the authority handover is successful during the pipe string processing process, and can automatically judge whether it is satisfied to continue execution Operating conditions to ensure the absolute safety of the transfer process of the authority of the wellhead pipe string of the automatic drilling rig and workover rig

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