Rubber sleeve with lower end sealing ring wrapped with copper sheet, packer and bridge plug

Abstract

The invention relates to the field of sealing, in particular to a rubber sleeve with a lower end sealing ring wrapped with a copper sheet, a packer and a bridge plug, wherein the rubber sleeve can bear high temperature and high pressure in the oil exploitation industry. The lower end sealing ring of the rubber sleeve is wrapped with the first copper sheet. The upper surface, the lower surface, the inner side face and the outer side face of the lower end sealing ring are wrapped with the first copper sheet. The thickness of the first copper sheet is set according to the standards that when the upper end bears the first axial pressure, the lower end sealing ring deforms in the radial direction so that the portion, distributed on the inner surface of the lower end sealing ring, of the first copper sheet can abut against a central pipe, and the portion, distributed on the outer surface of the lower end sealing ring, of the first copper sheet can abut against a casing. According to the rubber sleeve, the packer and the bridge plug, the lower end sealing ring is wrapped with the first copper sheet, the degradation function of small molecules of high-temperature and high-pressure steam to the rubber sleeve is reduced or prevented, and the long-term effect of sealing of the rubber sleeve is improved.

Description

technical field

[0001] The present application relates to the field of sealing, in particular to a copper-coated rubber sleeve, a packer and a bridge plug used in the oil exploitation industry that can withstand high temperature and high pressure. Background technique

[0002] Packer is a key tool for downhole oil production in oilfields. It is widely used in various operations such as oilfield injection, layered reconstruction, layered oil production, mechanical pipeline water plugging, etc. The packer needs to isolate the annular space to achieve Oil and gas stratification, and the core component to achieve annular isolation is the rubber cartridge. Bridge plug is also a tool for oil and gas stratification commonly used in oil production. The main difference between the packer and the bridge plug is that the packer is generally temporarily left in the well during the construction of fracturing, acidizing, leak-finding and other measures, while the bridge plug is temporari...

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