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Manufacturing method of petroleum exploration drill

A technology for oil exploration and manufacturing methods, which is applied in the direction of drill bits, drilling equipment, earthwork drilling and production, etc. It can solve the problems that the performance of oil exploration drill bits cannot fully meet people's needs, and achieve good self-sharpening performance, good impact toughness, and high grinding efficiency effect

Inactive Publication Date: 2014-04-30
LIYANG JIANGDA TECH TRANSFER CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But utilize existing technology to make diamond composite sheet, and then the performance that makes oil exploration drill bit can't fully satisfy people's needs, people hope to obtain the manufacturing method of oil exploration drill bit with better performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A processing method of an oil exploration drill bit, the detailed steps of the method are as follows:

[0017] a. Raw material composition: represented by weight percentage, the raw material used is composed of 54% diamond powder and 46% titanium; wherein 54% of the diamond powder is composed of 40% W20 diamond powder, 35% W15 diamond powder and 25% % W5~7 diamond powder;

[0018] B, take by weighing diamond powder and titanium according to the raw material composition described in step a, add the boron that accounts for total raw material amount 0.37% in addition after mixing, its raw material and boron are packed in the carbon synthetic mould;

[0019] c. Then put the carbon composite mold with raw materials and boron into the vacuum furnace for 66 minutes; the vacuum degree in the vacuum furnace is 0.001Pa, and the temperature is 120°C;

[0020] d. Put the semi-finished product obtained in step b into a diamond six-sided top press for high temperature and high press...

Embodiment 2

[0023] A processing method of an oil exploration drill bit, the detailed steps of the method are as follows:

[0024] a. Raw material composition: expressed in weight percentage, the raw material used is composed of 56% diamond powder and 44% titanium; wherein 56% of the diamond powder is composed of 40% W20 diamond powder, 35% W15 diamond powder and 25% % W5~7 diamond powder;

[0025] B, take by weighing diamond powder and titanium according to the raw material composition described in step a, add the boron that accounts for total raw material amount 0.35% in addition after mixing, its raw material and boron are packed in the carbon synthetic mould;

[0026] c. Then put the carbon composite mold with raw materials and boron into the vacuum furnace for 64 minutes; the vacuum degree in the vacuum furnace is 0.0009Pa, and the temperature is 100°C;

[0027] d. Put the semi-finished product obtained after vacuum heating in step b into a diamond six-sided top press for high-temper...

Embodiment 3

[0030] A processing method of an oil exploration drill bit, the detailed steps of the method are as follows:

[0031] a. Raw material composition: expressed in weight percentage, the raw material used is composed of 56% diamond powder and 44% titanium; wherein 56% of the diamond powder is composed of 40% W20 diamond powder, 35% W15 diamond powder and 25% % W5~7 diamond powder;

[0032] B, take by weighing diamond powder and titanium according to the raw material composition described in step a, add the boron B that accounts for 0.39% of total raw material amount in addition after mixing, its raw material and boron are packed in the carbon synthetic mould;

[0033] c. Then put the carbon composite mold with raw materials and boron into a vacuum furnace for 68 minutes; the vacuum degree in the vacuum furnace is 0.0012Pa, and the temperature is 150°C;

[0034] d. Put the semi-finished product obtained in step b into a diamond six-sided top press for high temperature and high pre...

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Abstract

The invention discloses a manufacturing method of a petroleum exploration drill. The manufacturing method comprises the following steps of proportionality and evenly mixing 52-56% of diamond powder with 44-48% of titanium, and additionally adding a catalyst accounting for 0.35-0.39% of the total raw material weight, putting the mixture in a vacuum furnace and maintaining for 64-68 minutes, next, putting the mixture in a hexahedron synthetic diamond press for high temperature and high pressure synthesis, after pressure relief, covering an alloy substrate with the synthesized product to obtain a diamond clad sheet, molding, and then mounting the molded product on a drill rod to form the petroleum exploration drill. The petroleum exploration drill manufactured by the method is good in stability, good in impact toughness, high in abrasive resistance and low in abrasive ratio.

Description

technical field [0001] The invention relates to a method for manufacturing an oil exploration drill bit. Background technique [0002] At present, diamond composite sheets are widely used in oil exploration drill bits. Oil exploration drill bits are mainly used for drilling in oil and gas fields. Diamond is known for its high hardness, high modulus of elasticity, and high thermal conductivity. At present, processing tools are mainly impregnated with single crystal diamond, and sintered polycrystalline diamond tools are booming. Sintered polycrystalline diamond is mainly a diamond composite sheet formed by a mixture of single crystal diamond particles and metal powder or by covering prefabricated alloy sheets on single crystal diamond particles. Polycrystalline Diamond Compound (PDC) has good wear resistance, thermal stability, compressive strength and impact toughness. However, the performance of producing diamond compacts and oil exploration drill bits by using the exis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/46B01J3/06
Inventor 张翠
Owner LIYANG JIANGDA TECH TRANSFER CENT