Intelligent and safe perforator for duct cleaning

A perforator and intelligent technology, applied in the directions of flushing wellbore, producing fluid, measuring, etc., can solve the problems of inability to realize hole cleaning, directional perforation, and safety detection, to prevent false perforation, ensure The effect of construction safety

Inactive Publication Date: 2021-01-15
DAQING OILFIELD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of existing perforators that cannot realize channel cleaning, azimuth perforation, sit-in and test-in, the present i

Method used

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  • Intelligent and safe perforator for duct cleaning
  • Intelligent and safe perforator for duct cleaning
  • Intelligent and safe perforator for duct cleaning

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Experimental program
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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing:

[0015] Depend on Figure 1 to Figure 3 As shown, a tunnel cleaning intelligent safety perforator includes an upper joint 1, the bottom of the upper joint 1 is threadedly connected to the decompression cylinder 6, and the bottom of the decompression cylinder 6 is connected to the main body 13 of the perforating device, and the inside of the main body 13 of the perforating device is A sealing piston 9 is placed, and a step is provided on the inner wall of the hole opening device body 13, the sealing piston 9 is placed above the step, a sealing ring is placed between the two, and a liquid inlet 10 is provided on the side wall of the hole opening device body 13. The bottom of the opening device body 13 is connected with the gun body 14, and the bottom of the gun body 14 is connected with the lower joint 22, and the outer wall of the lower joint 22 is fixed with a positioning ke...

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PUM

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Abstract

The invention discloses an intelligent and safe perforator for duct cleaning. The perforator mainly solves the problems that an existing perforator cannot achieve duct cleaning, orientation perforation, setting and setting detection. The perforator is characterized in that the bottom of an upper connector (1) is connected with a perforating device body (13), a sealing piston (9) is arranged in theperforating device body (13), a liquid inlet hole (10) is formed in the side wall of the perforating device body (13), the bottom of the perforating device body (13) is connected with a gun body (14), the bottom of the gun body (14) is connected with a lower connector, a perforating bullet (19) is arranged at the upper portion of the lower connector (22), an inner blind hole (20) is formed in theside wall of the gun body, the bottom of the lower connector (22) is connected with a guider shell (29), an axial guide groove (38) is formed in the guider shell (29), and a magnetic switch (34) is arranged in the guider shell (29). According to the perforator, the wrong perforation can be avoided, the construction safety is guaranteed, and a perforation duct can be cleaned.

Description

technical field [0001] The invention relates to the field of downhole perforation channel depth detection in the field of oil fields, in particular to an intelligent and safe perforator for channel cleaning. Background technique [0002] Perforation penetration is an important index for evaluating perforator parameters. Perforation penetration directly affects the development effect of oil and gas wells. Therefore, it is of great significance to know the actual penetration depth of perforating bullets downhole. At present, the existing perforation penetration detection technology can only perform simulated detection on the ground, and cannot measure the actual penetration depth of perforating bullets in underground formations. Ground simulation detection mainly includes concrete target detection, Belay sandstone target detection and steel target detection. Since the lithology of ground simulation detection is different from that of the downhole perforation layer, and there i...

Claims

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Application Information

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IPC IPC(8): E21B43/116E21B43/119E21B21/00E21B47/04
CPCE21B43/116E21B43/119E21B21/00E21B47/04
Inventor 黄金蔡山王树申张伟民于秋来莫祥伟杨坤
Owner DAQING OILFIELD CO LTD
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