Recoverable bridge plug putting tool

Abstract

The invention discloses a recyclable bridge plug putting tool which mainly comprises an electric cylinder, a main sleeve, a transmission pin, a transmission supporting column, an outer sleeve, a gripper transmission table, a limiting ring shearing pin, a gripper limiting ring, a clamping plate and a putting half buckle, and is characterized in that the putting tool is electrified, and an electric cylinder mandrel rotates to drive an electric cylinder mandrel sleeve, the outer sleeve and the putting half buckle to synchronously and axially move. The gripper bears initial pressure and is limited by the gripper limiting ring, the bearing neck of the recoverable bridge plug is grasped, and then putting and setting actions are carried out. After setting of the bridge plug is completed, the electric cylinder rotates, the outer sleeve moves upwards and axially, the clamping plate pushes the gripper limiting ring to complete shearing of the limiting ring shearing pin, the gripper limiting ring moves upwards and axially along with the clamping plate, limiting of the gripper is released, the gripper rotates clockwise around the rotating shaft under the action of restoring force of the spring, the recyclable bridge plug is loosened, and then the recyclable bridge plug is released. At the moment, the throwing tool is pulled and recycled. The releasing and setting actions of the recyclable bridge plug can be realized, and the recyclable bridge plug can be repeatedly used.

Description

technical field [0001] The invention relates to a production pipe string plugging tool for oil workover operations, in particular to a recyclable bridge plug throwing tool, which belongs to the technical field of downhole operation technology. Background technique [0002] The bridge plug was formed in the early 1980s. It has been widely used in the sealing of oil and gas wells since it came out. Nowadays, with the continuous development of oil and natural gas exploration and development technology, the frequency of use of bridge plugs is also rising rapidly. Although permanent bridge plugs meet engineering needs in function, the cost of use is high; soluble bridge plugs have different working conditions. The dissolution rate has different requirements, and its general applicability is not large. [0003] For the above-mentioned bridge plug selection problem, the current solution is to use recyclable bridge plugs. Such bridge plugs can not only meet the requirements of the ...

AI Technical Summary

Problems solved by technology

Nowadays, with the continuous development of oil and natural gas exploration and development technology, the frequency of use of bridge plugs is also increasing rapidly. Although permanent bridge plugs can meet engineering requirements in terms of function, the cost of use is relatively high; soluble bridge plugs are suitable for different working conditions. The dissolution rate has different requirements, and its general applicability is not great

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