An ultra-short removable hydraulic packer

A packer, a desirable technology, applied in sealing/isolation, wellbore/well parts, earthwork drilling and production, etc., can solve the problems of processing, assembly, testing, inconvenient use and transportation, difficult operation, complicated operation, etc. , to save production and later maintenance costs, facilitate transportation and use, and simplify the overall structure
CN110566154BActive Publication Date: 2021-12-17荆州市赛瑞能源技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
荆州市赛瑞能源技术有限公司
Publication Date
2021-12-17

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Abstract

The invention relates to an ultra-short removable hydraulic packer, which belongs to the field of downhole operation tools for oil and gas wells. The packer includes a central pipe, an upper joint and a lower joint. The middle part of the central pipe between the upper joint and the lower joint is equipped with a rubber tube and a lower vertebral body through a guide ring; There is an upper moving ring and a lower moving ring, an upper piston is arranged on the central pipe between the rubber tube and the lower joint through a cylinder sleeve, and a pressing hole is arranged on the central pipe between the upper piston and the lower joint. The center pipe of the packer is an integrated center pipe, which enhances the reliability and integrity of the packer during production. It solves the problem that the existing packer is inconvenient to process, assemble, test, use and transport due to its complex structure, and can only bear one-way load. The packer greatly simplifies the overall structure of the packer, reduces the cost of the packer, and is especially suitable for drilling, cementing and stimulation operations of oil and gas wells.
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Description

technical field

[0001] The invention relates to an ultra-short removable hydraulic packer, which belongs to the field of downhole operation tools for oil and gas wells. Background technique

[0002] The packer is a special tool used to isolate oil, gas and water layers in downhole casing or open hole. Through the action of external force, the length of the rubber tube is shortened and the diameter is increased to seal the annular space of the oil and sleeve, and separate the oil (gas, water) layers above and below the packer, so as to realize the layered testing of oil and water wells, layered oil recovery, and separation. Layer water injection, layer transformation and sealing water layer. It is widely used in drilling, cementing, testing, and well completion, and can be used for production, water injection (gas), interlayer isolation, separate injection and production, multi-layer testing, stimulation operations, etc., and the packer can be used separately. Type and perm...

Claims

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