Rubber cartridge, packer and bridge plug covered with two pieces of copper skin on the lower sealing ring

Abstract

The invention relates to the field of sealing, in particular to a packer element with a lower end sealing ring wrapped by two copper sheets, a packer and a bridge plug which are used in the oil production industry and can bearing high temperature and high pressure. The packer element adopts the structure that a first copper sheet wraps the upper surface, the lower surface, the inner side surface and the outer side surface of the lower end sealing ring, and consists of an inner copper sheet and an outer copper sheet; the inner copper sheet wraps the upper surface, the lower surface and the inner side surface of the lower end sealing ring; the outer copper sheet wraps the upper surface, the lower surface and the outer side surface of the lower end sealing ring; the inner copper sheet and the outer copper sheet overlap on the upper surface and the lower surface of the lower end sealing ring. As the lower end sealing ring is wrapped by the first copper sheets, the degradation effect of micromolecules in high-temperature high-pressure steam on the packer element can be reduced or avoided, and the long-acting sealing effect of the packer element is improved.

Description

technical field

[0001] The present application relates to the field of sealing, in particular to a rubber sleeve, a packer and a bridge plug which can withstand high temperature and high pressure and are covered with two copper skins at the lower sealing ring used in the oil exploitation industry. 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...

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