Hydraulic control static setting through pipeline packer

Abstract

The invention discloses a hydraulic control static setting through pipeline packer. The hydraulic control static setting through pipeline packer comprises a central pipe, a sealing barrel, a connecting barrel, a locking barrel, an outer barrel, an unlocking casing, a sealing module, a slip module, a limiting ring, an anti-rotating ring, a one-way locking ring and a shear module. The hydraulic control static setting through pipeline packer can form an internal sealed pressure transfer channel to achieve static hydraulic setting, avoid the limitations that pressurized seating via an oil casing pipe cannot be achieved inside an electric pump production well as well as that high pressurizing frictional resistance of control pipelines and low flowing speed of hydraulic oil result in slow setting. Meanwhile, the hydraulic control static setting through pipeline packer can solve the technical problem that oil jacket annulus pressurized setting and mechanical setting are inapplicable in the prior art, thereby being well applicable to multi-layer intelligent well completion and identical in function to common hydraulic setting recoverable packers.

Description

technical field The invention belongs to the field of intelligent completion of oil and gas field development technology, and in particular relates to a hydraulically controlled hydrostatic setting traversing pipeline packer, which can be unlocked through a hydraulic control method and controlled by hydrostatic column pressure to control the packer setting, and has traversing control at the same time. New packers for pipelines. Background technique A packer is a downhole tool installed in an oil and gas well to seal the annulus, isolate the target layer, control the injection or production of fluid, and withstand a certain pressure difference. According to the setting method, it is usually divided into hydraulic setting, mechanical setting and self-sealing or expanding packer. In the field of smart completions, hydraulically set retrievable packers are commonly used. Oil recovery is usually divided into natural injection recovery and artificial lift recovery. For now, in...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to solve the above-mentioned problems existing in the prior art, and to provide a hydraulically controlled hydrostatic setting penetrating pipeline packer. The technical problem of adopting mechanical setting, and it can be well used in multi-layer intelligent completion

Images