Formula and technique for manufacturing geophysical prospecting bit by powder sintering

A drill bit and powder technology, which is applied in the formulation and process of powder sintering to manufacture geophysical drill bits, can solve the problems of poor applicability, high cost, and difficulty in drilling into holes in rock formations, and achieve improved wear resistance and impact resistance, improved service life, and improved The effect of penetration rate

Inactive Publication Date: 2010-05-12
SOUTHWEST PETROLEUM UNIV
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, with the gradual expansion of my country's oil and gas resources exploration field, in some complex stratum areas (such as desert areas, swamp areas and loess plateau areas, etc.) In geophysical exploration operations, the existing geophysical drilling tools cannot meet the needs of exploration, especially the performance of geophysical drilling bits is more obvious
Mainly because: (1) The existing geophysical exploration drill bits are mainly air hammer drill bits, with a single variety
(2) The air hammer drill bit has a single structure and poor applicability to rock formations
At present, the production of geophysical drilling bits is mainly manufactured by mechanical processing. This process needs to consider factors such as the processing capacity and processing structure of the tool during the processing process. The selection range of materials is relatively narrow, and the design of the drill bit structure is relatively simple, which affects The wear resistance of the drill bit and its applicability to the formation make it difficult to drill into holes under complex formation conditions
Moreover, for some drill bits with complex structures, the cost is too high by machining

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
  • Formula and technique for manufacturing geophysical prospecting bit by powder sintering
  • Formula and technique for manufacturing geophysical prospecting bit by powder sintering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The specific embodiment of the present invention is described below in conjunction with accompanying drawing:

[0025] Such as figure 1 Shown, a kind of powder sintering of the present invention manufactures the prescription of geophysical drilling bit and the process comprises the following steps:

[0026] (1) Mold making steps: according to the mold processing drawings, use high-purity graphite electrodes to process a complete set of molds for the bottom mold, middle mold and upper mold on a lathe, and use plexiglass plates to make nozzle templates and chip removal block templates. The graphite mud Press into the prepared chip removal block template, press the prepared nozzle core mixture into the nozzle template, and take it out after forming. Use a dividing head with a diameter of 150mm and a magnetic scribing plate to mark on the bottom mold and position the hard core. For the alloy hole, chip removal block and nozzle core, use a twist drill to drill the carbide t...

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

No PUM Login to view more

Abstract

The invention discloses a formula and a technique for manufacturing a geophysical prospecting bit by powder sintering. The formula comprises the following raw materials: in the mixed tungsten carbide powder, 60 to 80 meshes of tungsten carbide powder is 30 percent to 40 percent, 80 to 200 meshes of the tungsten carbide powder is 60 percent to 70 percent, the proportion of the tungsten carbide powder, bonding alloy and dehydrated sodium tetraborate is 100:62.5:5 and the bonding alloy is copper-manganese-nickel alloy, and the proportion of the copper, manganese and nickel is 68:27:11; and the technique comprises the steps of die making, material mixing, preprocessing of steel body, filling, sintering and trimming. At present, the geophysical prospecting bit is mainly processed and manufactured mechanically, and the material and the structure of the bit is more single; and in order to adapt to the exploration of areas with complex formations, the invention adopts powdery materials which are easy to change the material of the bit and can manufacture the bit with complex structure by designing a mold. The formula has low cost, the performance of the finished product is reliable, the technique steps are optimized properly, the technique is simplified and the cost-performance ratio is high.

Description

1. Technical field [0001] The invention relates to a powder sintering formula and a process for manufacturing a geophysical exploration drill bit, and is especially suitable for a cemented carbide drill bit for oil and natural gas geophysical exploration operations. 2. Background technology [0002] At present, with the gradual expansion of my country's oil and gas resources exploration field, in some complex stratum areas (such as desert areas, swamp areas and loess plateau areas, etc.) In geophysical exploration operations, the existing geophysical drilling tools cannot meet the needs of exploration, especially the performance of geophysical drilling bits is more obvious. Mainly because: (1) existing geophysical prospecting bit mainly is based on air hammer bit, and kind is single. (2) The air hammer drill bit has a single structure and poor applicability to rock formations. In hard formations, the rock breaking effect is good, but in gravel layers, soft and hard formatio...

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 Applications(China)
IPC IPC(8): B22F1/00B22F3/10C22C29/08E21B10/46
Inventor 黄志强黄伟李琴周已宋嘉宁杨景轩黄继亮邱成松
Owner SOUTHWEST PETROLEUM UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products