A wellhead loading and unloading method for intelligent elevators in mechanized workover operations

Abstract

The invention discloses a well mouth assembling and disassembling method of a mechanical workover treatment intelligent elevator. The method comprises the steps that a well mouth platform of a frame structure is installed on a well mouth; an elevator disassembling device is installed on the left side of the well mouth platform, an elevator on the well mouth platform over the well mouth is disassembled to the right side of the well mouth through stretching and retraction movement of the elevator disassembling device, a connecting plate tilting in the lower right direction is hinged to the right side of the well mouth, the elevator is pushed by the elevator disassembling device to the connecting plate, and a suspension ring tilts rightwards due to the gravity center; a support is arranged on the right side, opposite to the left side provided with the elevator disassembling device, of the well mouth platform, the support is provided with an elevator assembling device, the elevator assembling device rotates to jack up the connecting plate where the elevator is placed, push the elevator to the well mouth and push the suspension ring to a large hook, and finally the elevator is assembled and disassembled on the well mouth. According to the mouth assembling and disassembling method of the mechanical workover treatment intelligent elevator, mechanical petroleum string tripping operation can be achieved when no operator exists on the well mouth, the labor intensity of workers is lowered, and potential safety hazards are reduced.

Description

technical field [0001] The invention relates to oil industry workover operation technology, in particular to a wellhead loading and unloading method of an intelligent elevator for mechanized workover operation. Background technique [0002] During normal workover, the loading and unloading work of wellhead elevators has always been carried by workers, which is labor-intensive and has certain potential safety hazards; the mechanized lifting and lowering technology reported by technology and data currently uses swimming elevators For the operation method that cooperates with the fixed slips, the swimming elevator adopts a hydraulic or pneumatic automatic elevator, and the automatic installation method of the wellhead of the elevator has not been reported. Contents of the invention [0003] The purpose of the present invention is to provide a wellhead loading and unloading method for intelligent elevators in mechanized workover operations. A hydraulic motor and a hydraulic cy...

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