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Punching and cutting combined drilling tool

A compound drill and percussion drill technology, which is applied to drill bits, earthwork drilling, drilling equipment, etc., can solve the problems of high drill bit wear rate and low work efficiency, and achieve the effects of improving applicable working conditions, convenient maintenance, and ingenious structure

Active Publication Date: 2022-01-14
SICHUAN DEEP & FAST OIL DRILLING TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a punching and cutting composite drilling tool to solve the problems of low work efficiency and high wear rate of the drill bit solely relying on the rotation of the PDC bit to break rocks

Method used

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  • Punching and cutting combined drilling tool
  • Punching and cutting combined drilling tool
  • Punching and cutting combined drilling tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 and image 3 Shown is a punching and cutting composite drilling tool provided by the present invention, including a drill bit 1 , an impact structure 2 , a transmission structure 3 and a hydraulic motor 4 . The drill bit 1 includes a percussion drill 1-1 and a PDC drill 1-2, the PDC drill 1-2 and the percussion drill 1-1 are arranged at intervals, and the percussion teeth 1-1.1 set on the percussion drill 1-1 are connected with the percussion drill 1-1. The drill bit body is brazed, which is convenient to replace the impact teeth 1-1.1 of different shapes according to different geological conditions; the impact drill bit 1-1 is connected to the impact structure 2, and the impact structure 2 includes a rotary part, a top extension part and an axial force transmission part, and the rotary part Connect the power unit. The rotary part includes a cam 2-2, the protruding part includes a roller 2-3 and a roller seat 2-4, the axial force transmission part is a transm...

Embodiment 2

[0034] The scope of protection of the present invention is not limited to the mechanism mentioned in Embodiment 1. When the rotary part in Embodiment 1 is an annular boss with smooth ends, and the protruding part is a cam roller and a roller seat, when the annular boss rotates , the friction drives the cam roller to roll, because the radius of the cam roller changes, it drives the axial movement of the roller seat, and the axial force is transmitted to the impact drill through the axial transmission part, and the axial impact movement of the impact drill can also be realized .

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Abstract

The invention discloses a punching and cutting combined drilling tool, relates to the field of drilling equipment. The problems that the working efficiency is low and the wear rate of a drill bit is high when rocks are crushed only by rotating the drill bit are mainly solved. The punching and cutting combined drilling tool mainly structurally comprises a PDC drill bit body and a percussion drill bit body and is characterized by further comprising a percussion structure connected with the percussion drill bit body. The punching and cutting combined drilling tool is suitable for different stratums of various geological conditions, the construction efficiency is high, and drill bit abrasion is small.

Description

technical field [0001] The invention relates to the field of drilling equipment, in particular to a punching and cutting composite drilling tool. Background technique [0002] Drilling is the project of using mechanical equipment to drill the formation into cylindrical holes with a certain depth. Drilling is widely used in many fields such as oil and gas drilling engineering, mining, geological drilling, construction engineering, tunnel engineering, etc., either to obtain physical data buried underground, or to open channels, or to observe geological dynamics. play an indispensable role in development. [0003] The drill bit is a rock-breaking tool used in drilling engineering to break rock and form a wellbore. Conventional drill bits used in drilling engineering today mainly include three-cone drill bits, polycrystalline diamond compact drill bits (ie, PDC drill bits) and punching drill bits (also known as rotary punching bits or drill bits). [0004] The tri-cone bit ma...

Claims

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Application Information

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IPC IPC(8): E21B10/00E21B4/16E21B10/60F03C2/08
CPCE21B10/00E21B4/16E21B10/60F03C2/08E21B6/02E21B10/43E21B6/04E21B10/36E21B10/42E21B10/55E21B10/567
Inventor 郑耀东钟文李恒曾德发孔亚军张苡源何周文李勇刚周泓吉张亮李舒
Owner SICHUAN DEEP & FAST OIL DRILLING TOOLS CO LTD
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