A hanger feeding tool with linked hands

Abstract

The invention relates to a linked-release hanger delivery tool and belongs to the field of oil-gas well down-hole operation tools. The delivery tool comprises a central tube, an upper connector, a lower connector, a piston, a cylinder sleeve, a clamping bush, a setting sleeve and a spring sleeve, wherein the upper connector is mounted at one end of the central tube; a cam block is mounted on the central tube on one side of the upper connector; an elastic claw is mounted on the cam block; the piston is mounted between the elastic claw and the upper connector; a piston extending sleeve is arranged on one side of the piston; the setting sleeve is mounted on the piston extending sleeve; the piston extending sleeve is fixedly connected with the setting sleeve via a releasing pin. The tool is capable of hydraulically releasing; the piston is against an ejection sleeve under the action of the hydraulic pressure, then an inclined body is pushed to move down; a dovetail groove in the inclined body drives the dovetail on the clamping bush to fall back; a special anti-setting device is designed at the upper end of the tool; the elastic claw is hooped on the central tube; the cam block is fixed in a square groove of the elastic claw and supports a guide body of a packer, thereby preventing the packer from setting in advance after meeting with barriers in the well.

Description

technical field [0001] The invention relates to a hand-operated hanger running tool, which belongs to the field of downhole operation tools for oil and gas wells. Background technique [0002] As the most important part of the pipe string outside the lateral well, the pre-window hanger must not only isolate the production pipe string and the upper oil and casing annulus, but also must play the role of hanging the pipe string, and after the operation is completed, ensure that the The sealing tool and the packer are separated smoothly, providing a channel for subsequent production operations. Therefore, a hydraulic pressure setting tool is necessary. [0003] However, most of the current setting tools are mechanically lost. When operating in deep wells and highly inclined wells, the torque cannot be transmitted, and the tensile force cannot be accurately calculated. This makes it difficult to lose hands, which affects subsequent production operations, and there is no emergenc...

AI Technical Summary

Problems solved by technology

[0003] However, most of the current setting tools are mechanically lost. When operating in deep wells and highly inclined wells, the torque cannot be transmitted, and the tensile force cannot be accurately calculated. This makes it difficult to lose hands, which affects subsequent production operations, and there is no emergency loss of hands. Function, disadvantages of poor adaptability

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