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Welded high-matrix diamond core bit and manufacturing method thereof

A production method and high matrix technology, applied in the direction of drill bits, welding equipment, laser welding equipment, etc., can solve the problems of high tripping frequency of the drill bit, low overall drilling efficiency, low drilling efficiency of the drill bit, etc., and achieve drilling efficiency High, improve the efficiency of drilling engineering and the effect of improving the monthly efficiency of drilling platforms

Active Publication Date: 2014-07-30
桂林矿产地质研究院工程有限公司 +1
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Problems solved by technology

[0008] For this reason, the present invention provides a welded high-matrix geological drill bit and its manufacturing method, aiming to solve the problem of low drilling efficiency and short service life of the drill bit in the drilling engineering of mineral geological exploration, especially in deep drilling below 1000 meters. This leads to problems such as high tripping frequency of the drill bit, low overall drilling efficiency, and easy collapse of the borehole

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  • Welded high-matrix diamond core bit and manufacturing method thereof
  • Welded high-matrix diamond core bit and manufacturing method thereof
  • Welded high-matrix diamond core bit and manufacturing method thereof

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Embodiment Construction

[0033] The technical solution of the present invention will be further described below in conjunction with the embodiments shown in the drawings.

[0034] The welded high matrix geological drill bit of the present invention includes an upper drill tooth crown 3 and a lower steel body 4 that are connected. The drill tooth crown 3 includes a high matrix drill tooth 1 and a nozzle block 2. The high matrix drill The teeth 1 are uniformly distributed on the circumference of the steel body 4, and the nozzle blocks 2 are arranged on the steel body 4 between the adjacent high carcass drill teeth 1 at intervals; the high carcass drill teeth 1 include upper, middle and lower three The parts are working tooth layer 1-1 with rock breaking abrasive particles in the upper part, transition tooth layer 1-2 without abrasive particles in the middle part, welded tooth layer 1-3 without abrasive particles in the lower part, and high matrix drill tooth 1. The total height is 15mm~35mm. According to d...

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Abstract

The invention discloses a welded high-matrix diamond core bit and a manufacturing method thereof. The welded high-matrix diamond core bit comprises high-matrix drill teeth, gate blocks and a steel body; the high-matrix drill teeth and the gate blocks are separately subjected to sinter molding and then are tightly connected to form a drill tooth crown; the drill tooth crown is welded on the steel body through laser; each high-matrix drill tooth comprises a working tooth layer containing rock breaking grains, a transition tooth layer not containing grains, and a welding tooth layer not containing the grains; the total height of the high-matrix drill teeth is 15 mm to 35 mm; each gate block is manufactured by sintering single powders, a variety of metal powders or alloyed powders. Since the high-matrix drill teeth are adopted for independently sintering and the self-adaptive abrasion gate blocks are designed, the sintering temperature is greatly lowered, the damage to the diamond is reduced, the height of the drill teeth is increased, the drilling efficiency and the service life of the bit are improved greatly, the bit tripping times during geological drilling is remarkably reduced, and the welded high-matrix diamond core bit is especially suitable for drilling engineering of deep wells below 1.000 meters.

Description

(1) Technical field: [0001] The invention relates to geological exploration drilling technology, in particular to a welded high matrix geological drill bit and a manufacturing method thereof. (2) Background technology: [0002] At present, most of the solid mineral deposit exploration and drilling projects still use diamond geological drill bits. After decades of development, diamond geological drill bit manufacturing technology has made certain progress in structural design and drilling technology. However, the overall development is slow. Insufficient technological innovation. [0003] Diamond geological drill products currently include medium-frequency integral sintering geological drills and electroplating geological drills. [0004] Intermediate frequency integral sintering geological drill is manufactured by an intermediate frequency hot press sintering machine. The manufacturing process is to pour the mixture of diamond and metal powder into a graphite mold of the required si...

Claims

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Application Information

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IPC IPC(8): E21B10/46B22F5/08B22F7/06B22F3/10B22F3/16B23P15/00B23K26/21
Inventor 刘志环潘晓毅谢德龙罗文来林峰吕智胡乔帆王进保
Owner 桂林矿产地质研究院工程有限公司
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