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Oil well mechanical water plugging packer seal examining system

A water seal and mechanical technology, applied in wellbore/well components, measurement, earthwork drilling and production, etc.

Pending Publication Date: 2021-08-03
长春市斯普瑞新技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the water shutoff packer is set in the mechanical water shutoff process string, it is a necessary process to check the seal of the mechanical water shutoff packer. However, so far, there is no effective and reliable way to not change the state of the water shutoff string or not Holes are designed on the water plugging string to complete the seal inspection operation of the mechanical water plugging packer

Method used

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  • Oil well mechanical water plugging packer seal examining system
  • Oil well mechanical water plugging packer seal examining system
  • Oil well mechanical water plugging packer seal examining system

Examples

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Please refer to Figure 1 to Figure 4 , figure 1 It is a schematic diagram of the overall structure of a specific embodiment provided by the present invention; figure 2 for figure 1 The structure schematic diagram of the downhole seal tester is shown; image 3 for figure 2 The structural schematic diagram of the piezoelectric ceramic transducer unit of the sealing tester shown; Figure 4 for figure 1 The schematic diagram of the structure of the...

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Abstract

The invention discloses an oil well mechanical water plugging packer seal examining system. The oil well mechanical water plugging packer seal examining system comprises an underground seal examining instrument and a direct reading communication measuring and recording instrument. The underground seal examining instrument comprises a seal examining instrument body, a battery, a seal examining instrument piezoelectric ceramic transduction unit, an electronic circuit unit and a seal examining instrument pressure sensor; the seal examining instrument body is used for being installed between two sets of water plugging packers; the battery, the seal examining instrument piezoelectric ceramic transduction unit, the electronic circuit unit and the seal examining instrument pressure sensor are all arranged in the seal examining instrument body; and the seal examining instrument piezoelectric ceramic transduction unit is connected with the electronic circuit unit, the electronic circuit unit is in wireless communication connection with the direct reading communication measuring and recording instrument, the seal examining instrument pressure sensor collects pressure between water plugging packers, and the electronic circuit unit controls the seal examining instrument piezoelectric ceramic transduction unit to be in wireless communication with the direct reading communication measuring and recording instrument. No movable part or hole is needed on water plugging packer tubular columns, the mechanical characteristics of the water plugging packer tubular columns are not changed, and the reliability and accuracy of the seal examining test of the water plugging packers are improved.

Description

technical field [0001] The invention relates to the technical field of oil production engineering in oil fields, in particular to a sealing inspection system for mechanical water plugging packers of oil wells. Background technique [0002] As the oilfield development enters the stage of high water cut, the main layer of the oil well has a high level of water flooding and is relatively fully produced, while the secondary main layer has a lower level of water flooding and relatively poor production. In order to reduce interlayer interference and improve interlayer contradictions, a Targeted measures to block the high aquifer layer to fully utilize the potential layer and achieve interlayer transfer, thereby improving the water absorption and liquid production profile, and tapping the interlayer potential of oil wells are important means to improve oil recovery in the current high water cut development stage. [0003] The mechanical water plugging process string has been widely...

Claims

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Application Information

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IPC IPC(8): E21B47/117E21B47/12E21B47/06E21B47/07
CPCE21B47/06E21B47/12
Inventor 王晓东孙忠国孙光明龚祖才杜永帅张彦超郭曹明魏闯李明
Owner 长春市斯普瑞新技术有限责任公司
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