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A New Rotary Air Hammer Rock Steering Drilling Tool

A technology of directional drilling and air hammer, which is applied in earthwork drilling, drilling equipment, driving devices for drilling in boreholes, etc. It can solve the problems of slow footage, high power consumption, and long construction period, and achieve the goal of delaying the opening time Effect

Active Publication Date: 2021-06-01
苏州科艺油气工程设备服务有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The construction method is to use high-pressure mud to drive the tri-cone bit on the mud motor for rock drilling, static pushing, and positioning-oriented construction. This method requires a large amount of mud and high-pressure mud pumps to work with mud motors, and is characterized by high power consumption. , The footage speed is slow, and the construction period is long

Method used

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  • A New Rotary Air Hammer Rock Steering Drilling Tool
  • A New Rotary Air Hammer Rock Steering Drilling Tool
  • A New Rotary Air Hammer Rock Steering Drilling Tool

Examples

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Embodiment Construction

[0025] figure 1 It is a sectional view of the present invention. Such as figure 1 As shown, the pilot drill includes a casing 7, a power device installed in the casing 7, and a hammer head structure driven by the power device.

[0026] The hammerhead structure includes a spiral hammerhead 11 and a spiral shell 10 . The spiral casing 10 is fixed on the inner wall of the casing 7 . The spiral housing 10 is splined to the spiral hammer head 11 . Specifically, the power device pushes the screw hammer 11 in the hammer structure. figure 2 It is a three-dimensional view of a spiral hammer head. image 3 It is a side view of the spiral hammer head. Figure 4 It is a three-dimensional view of the spiral shell. Figure 5 A cross-sectional view of the spiral casing. Such as Figure 2 to Figure 5 As shown, the spline teeth on the outer wall of the screw hammer head 11 are engaged with the spline teeth on the inner wall of the screw housing 10 . When the power device pushes the ...

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Abstract

The invention discloses a new type of rotary air hammer rock guiding drilling tool. The guiding drilling tool includes a casing, a power device installed in the casing, and a hammer head structure driven by the power device; the hammer head structure includes a spiral hammer head and a spiral shell; the spiral shell is fixed on the inner wall of the shell; the spiral shell is splined to the spiral hammerhead; the spiral hammerhead includes a third inner passage communicated with the power device; the The third inner channel reaches the head of the screw hammer. The invention overcomes the previous limitation that the rock cannot be broken in the process that the drill pipe does not rotate and the hammer head is guided. The invention realizes the self-rotation under the condition of the spiral structure and vibration, and then breaks the rock in the form of a surface, which solves the problem that the pneumatic hammer cannot be guided to a fixed point.

Description

technical field [0001] The invention relates to the field of horizontal directional drilling rig rock pipeline engineering construction, in particular to a novel rotary air hammer rock directional drilling tool. Background technique [0002] In the past, trenchless horizontal directional drilling rigs used mud motors and three-cone bits for guiding construction in rock engineering. This method is commonly used in oil drilling. The construction method is to use high-pressure mud to drive the tri-cone bit on the mud motor for rock drilling, static pushing, and positioning-oriented construction. This method requires a large amount of mud and high-pressure mud pumps to work with mud motors, and is characterized by high power consumption. , The footage is slow and the construction period is long. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention discloses a novel rotary air hammer rock guiding drilling tool. [0004] The technical s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B4/16E21B4/14
CPCE21B4/14E21B4/16
Inventor 曹良
Owner 苏州科艺油气工程设备服务有限公司
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