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Balanced oil well layering packer

A packer, balanced technology, applied in the direction of sealing/isolation, wellbore/well components, earthwork drilling and production, etc., can solve troubles and other problems, and achieve the effect of preventing oil leakage

Pending Publication Date: 2022-06-03
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current oil packers need to be manually controlled to close or open the relevant valve switches. Every time an operation is performed, the operator needs to visit the site in person, which is troublesome.

Method used

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  • Balanced oil well layering packer
  • Balanced oil well layering packer
  • Balanced oil well layering packer

Examples

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Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

[0018] See e.g. figure 1 A balanced oil well layered packer as shown includes a sealing cover plate 1, a protruding pipe 2 integrally welded to the center of the top wall of the sealing cover plate 1, and an oil delivery pipeline fitted on the top of the protruding pipe 2. 3. An oil outlet pipe 4 is installed laterally on the outer wall of the protruding pipe 2;

like Figure 2-Figure 4 As shown, an outer motor 5 is welded on one side of the outer wall of the isolation cover plate 1, and an inner chamber 6 isolated from the outside is formed in the isolation cover plate 1, and the inner chamber 6 is provided with a double-patterned connect...

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Abstract

The invention discloses a balanced oil well layering packer, which belongs to the technical field of oil well underground equipment and comprises a packing cover plate, a protruding pipe integrally welded at the center of the top wall of the packing cover plate and an oil conveying pipeline mounted at the top of the protruding pipe in a matched manner, and an oil outlet pipe is transversely mounted on the outer wall of the protruding pipe; an outer motor is welded to one side of the outer wall of the packing cover plate, an inner chamber isolated from the outside is formed in the packing cover plate, a double-thread lead screw connected with the outer motor in a matched mode is arranged in the inner chamber, and a movable sealing cover capable of ascending and descending along with operation of the double-thread lead screw is arranged in the center of the inner chamber. An oil sealing ring is fixedly adhered to the edge of the top wall of the movable sealing cover; flange plates are installed at the opposite ends of the protruding pipe and the oil conveying pipeline. According to the balanced oil well layering packer, automatic plugging can be achieved by plugging the oil outlet pipe through the movable sealing cover and the oil sealing ring, automatic opening can be achieved by enabling the motor to rotate reversely, and the trouble of manual operation is avoided.

Description

technical field [0001] The invention belongs to the technical field of oil well downhole equipment, in particular to a balanced oil well layered packer. Background technique [0003] An oil well is a hole drilled according to the well-distribution system planned for oilfield development, and the oil is raised from the bottom of the well to the wellhead. Generally, after drilling the oil layer, the oil well is run into the oil layer casing, and the oil well cement is injected into the annular space between the casing and the well wall to maintain the well wall and seal the oil, gas and water layers. The hole gun shoots open the oil layer to form a channel, and the oil pipe is lowered into the oil pipe, and the oil is raised from the bottom of the oil well to the wellhead by the appropriate inducing method. [0004] In the process of oil production, when the oil well is produced in stages, the casing packer is usually used to seal the annulus between the casing and the oil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/127
CPCE21B33/127
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