Packer for oil and gas exploitation

Abstract

The invention discloses a packer for oil and gas exploitation. The packer comprises a central pipe used for conveying, and further comprises a packer rubber used for bulging supporting setting, an airinlet one-way valve used for providing inflation and an air outlet one-way valve used for deflating, wherein the packer rubber is arranged outside the central pipe, an upper rubber sleeve is arrangedat one end of the packer rubber, one end of the upper rubber sleeve is connected with an upper connector, a lower rubber sleeve is arranged at the other end of the packer rubber, and one end of the lower rubber sleeve is connected with a lower connector. According to the packer for the oil and gas exploitation, a supporting frame is matched with the packer rubber and the central pipe to form independent single air bags, so that the packer rubber is periodically bulged during bulging, the situation that the sealing performance cannot be ensured due to hollowing caused by integral bulging is avoided, and meanwhile, the air pressure inside each single air bag can be ensured, the bulging effect of the packer rubber is ensured, and during deflation, the air outlet one-way valve can be used forquick deflation, so that the deflation efficiency is improved.

Description

technical field [0001] The invention relates to the field of oil and gas development packers, in particular to a packer for oil and gas development. Background technique [0002] In oil production engineering, the packer is used for delamination. The packer is designed with an oil production channel. When setting, the piston sleeve goes up, and the oil production channel is opened; after setting, the pressure of the upper layer acts on the balance piston, pushing the rubber cylinder upward. The unsealing pin is protected from shearing force; when unsealing, the unsealing pin is sheared by the friction between the rubber tube and the casing, the piston sleeve goes down, and the oil production channel is closed. [0003] When the common packer is set, it uses the pressure difference inside and outside to inflate the rubber tube to inflate it, so as to perform the seat seal. Because the shape of the rubber tube is long, it is inevitable that the gas will be uneven when inflat...

AI Technical Summary

Problems solved by technology

[0003] When the common packer is set, it uses the pressure difference between the inside and the outside to inflate the rubber tube to inflate it, so as to perform the seat seal. Because the shape of the rubber tube is long, it is inevitable that the gas will be uneven when inflated. A hollow is formed between the pipe wall and the pipe wall, resulting in a poor seal

Images