Petroleum bit matrix powder

A matrix powder and drill bit technology is applied in the field of drill bit metallurgical materials, which can solve the problems of ineffective cooling of cutting teeth, inability to quickly discharge cuttings, and deep cutting blade wings, so as to achieve improved surface quality and smoothness, improved mechanical properties, and improved mechanical properties. Effects that meet high performance requirements

Active Publication Date: 2009-12-09
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

[0003] The purpose of the present invention is to overcome the defects that the current preparation of the matrix powder of the diamond drill bit cannot well solve the problems of the existing drill bit, such as fast drilling speed, deep

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] Taking the preparation of 100g of the petroleum drill bit matrix powder as an example, the present invention will be described. During preparation, weigh 25g cast tungsten carbide powder with a particle size range of 65-400 mesh, 53g alloy tungsten carbide powder with a particle size range of 65-400 mesh, 20g nickel-based alloy powder with a particle size range of 100-325 mesh, and a particle size range of 5-15 Micron nickel powder 2g.

Example Embodiment

[0020] Example 2

[0021] When preparing 100g of this petroleum drill matrix powder, weigh 75g cast tungsten carbide powder with a particle size range of 65-400 mesh, 10g alloy tungsten carbide powder with a particle size range of 65-400 mesh, and 10g nickel-based alloy powder with a particle size range of 100-325 mesh. And 5g of nickel powder with a particle size range of 5-15 microns.

Example Embodiment

[0022] Example 3

[0023] When preparing 100g of this petroleum drill matrix powder, weigh 30g cast tungsten carbide powder with a particle size range of 65-400 mesh, 30g alloy tungsten carbide powder with a particle size range of 65-400 mesh, and 35g nickel-based alloy powder with a particle size range of 100-325 mesh. And 5g of nickel powder with a particle size range of 5-15 microns.

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Abstract

The invention discloses a petroleum bit matrix powder and is characterized in that the matrix powder comprises the following components by weight percent; 25-75% of cast tungsten carbide powder with a particle size of 65-400 meshes, 10-60% of alloy tungsten carbide powder with a particle size of 65-400 meshes, 10-40% of Ni-based alloy powder with a particle size of 100-325 meshes and 2-8% of nickel powder with a particle size of 5-15 micron. Mechanical property tests of the matrix powder prepared by the invention show that the bending strength of the matrix powder is increased by 30-40% compared with that of the traditional matrix powder, the impact toughness thereof is increased by 3-4 times than that of the traditional matrix powder, and the abrasion resistance and erosion resistance thereof is increased by 5-10% compared with that of the traditional matrix powder.

Description

technical field [0001] The invention relates to a metallurgical material for a drill bit, in particular to an oil drill matrix powder used for manufacturing an oil drill bit. Background technique [0002] In modern oil drilling, petroleum diamond drill bits have been used as the main recommended products for drilling bits due to their high drilling efficiency. With the further development of oil drilling technology, the current oil drilling engineering also puts forward higher performance requirements for diamond drill bits. For example, the drilling speed is required to be faster when drilling. The cutting blades of diamond drill bits are required to be deeper and thinner. At the same time, it is also required that the cutting teeth in high-speed cutting can be effectively cooled, and the cutting debris can be quickly discharged. However, the matrix powder of the current diamond drill bits is only made of ordinary cast tungsten carbide and nickel powder, the surface quali...

Claims

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Application Information

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IPC IPC(8): B22F1/00
Inventor 张苡源周尚礼
Owner SICHUAN DEEP & FAST OIL DRILLING TOOLS CO LTD
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