Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of diamond composite sheet for oil drilling made by using nanometer metal bond and its preparation method

A diamond composite sheet and nano-metal technology, which is applied in the field of diamond composite sheets for oil drilling, can solve the problems of the limited sales price and application range of domestic composite sheets, achieve good sintering promotion effect, prolong service life, and increase impact resistance. Effect

Active Publication Date: 2016-06-08
ZHONGNAN DIAMOND CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a big gap between domestic composite sheets and foreign products, which greatly limits the sales price and application range of domestic composite sheets.
Due to the limitation of formula and process, domestic PDC products have the following problems: 1) The wear ratio of composite sheet is 260,000 to 280,000 (about 360,000 in foreign countries)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of diamond composite sheet for oil drilling made by using nanometer metal bond and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A nanometer metal bond, which is composed of the following raw materials in weight percent: 99% Co powder, 0.5% NbC powder, 0.4% Ni powder and 0.1% Be powder. The particle size of NbC is 22-36nm, and the particle size of Co, Ni and Be powder is 18-22nm.

[0025] A diamond composite sheet for oil drilling made using the above-mentioned nano metal bond, the composite sheet includes a diamond layer and a cemented carbide matrix composed of a diamond polycrystalline layer and a transition layer; the diamond polycrystalline layer consists of the following weight Raw material composition in percentage: 98% of diamond powder (particle size 5-15μm) and 2% of nano-metal bond. The structure of the diamond compact is as figure 1 As shown, from top to bottom are diamond polycrystalline layer 1, transition layer 2 and cemented carbide substrate 3, the longitudinal section of the transition layer 2 is an isosceles trapezoid; the angle between the waist of the isosceles trapezoid and...

Embodiment 2

[0035] A nanometer metal bond, the nanometer metal bond is composed of the following raw materials in weight percentage: 97% of Co powder, 1% of NbC powder, 1.5% of Ni powder and 0.5% of Be powder. The particle size of NbC is 22-36nm, and the particle size of Co, Ni and Be powder is 18-22nm.

[0036] A diamond composite sheet for oil drilling made using the above-mentioned nano metal bond, the composite sheet includes a diamond layer and a cemented carbide matrix composed of a diamond polycrystalline layer and a transition layer; the diamond polycrystalline layer consists of the following weight Raw material composition in percentage: 92% of diamond powder (particle size 5-15μm) and 8% of nano-metal bond. The weight percentages of each layer of the diamond layer are: 35% of the diamond polycrystalline layer, and 65% of the transition layer. The transition layer is composed of the following raw materials in weight percentage: 85% of diamond powder (with a particle size of 15-3...

Embodiment 3

[0046] A nanometer metal bond, the nanometer metal bond is composed of the following raw materials in weight percentage: 98% of Co powder, 0.8% of NbC powder, 0.9% of Ni powder and 0.3% of Be powder. The particle size of NbC is 22-36nm, and the particle size of Co, Ni and Be powder is 18-22nm.

[0047] A diamond composite sheet for oil drilling made using the above-mentioned nano metal bond, the composite sheet includes a diamond layer and a cemented carbide matrix composed of a diamond polycrystalline layer and a transition layer; the diamond polycrystalline layer consists of the following weight Raw material composition in percentage: 94% diamond powder (particle size 5-15 μm) and 6% nano-metal bond. The weight percentages of each layer of the diamond layer are: 40% of the diamond polycrystalline layer, and 60% of the transition layer. The transition layer is composed of the following raw materials in weight percentage: 90% of diamond powder (with a particle size of 15-35 μ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a nanometer metal bonding agent, which is composed of the following raw materials in percentage by weight: 97-99% of Co powder, 0.5-1% of NbC powder, 0.4-1.5% of Ni powder and 0.1-0.5% of Be powder. The invention also discloses a diamond composite sheet for oil drilling made of the bonding agent, which includes a diamond layer and a cemented carbide matrix composed of a diamond polycrystalline layer and a transition layer; the diamond polycrystalline layer is composed of the following weight hundred Composition of raw materials with different content: 92-98% of diamond powder and 2-8% of nano-metal bond. The diamond composite sheet for oil drilling of the present invention breaks through the technical bottleneck of high impact toughness and high bending strength of the diamond composite sheet by using nano-metal binder in the formula of the diamond polycrystalline layer, and prolongs the service life of the diamond composite sheet.

Description

technical field [0001] The invention belongs to the technical field of diamond and cemented carbide composite materials, and in particular relates to a nanometer metal bond and a diamond composite sheet for oil drilling made using the bond. Due to its high wear resistance and high impact toughness, it can be used as a drill bit Cutting elements are widely used in oil and gas field exploitation, ore deposit exploration and other fields. Background technique [0002] Diamond compact (PDC) for oil drilling is a superhard composite material made of diamond micropowder as raw material, cemented carbide as matrix, and sintered under high temperature and high pressure conditions through a specific assembly method. Foreign developed countries have successfully developed diamond compacts for drilling since the early 1980s. After more than 30 years of development, foreign research on PDC has basically entered a mature stage, and products are also developing towards diversification and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22F7/08B22F1/00
Inventor 卢灿华张涛刘俊涛窦明
Owner ZHONGNAN DIAMOND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com