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A 12-3/4 ultra-large diameter prospecting drill pipe

An ultra-large diameter, drill pipe technology, applied in drill pipe, drill pipe, drilling equipment, etc., to achieve the effect of tight connection, shortening drilling cycle, and increasing recoverable reserves

Active Publication Date: 2015-09-09
马斯特钻探工程(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, many drilling rig contractors are renovating and upgrading drilling equipment or manufacturing new drilling rigs. The drilling width of these drilling rigs can reach more than 8 meters. Drilling such a wide hole requires a lot of investment and advanced ultra-deep drilling technology

Method used

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  • A 12-3/4 ultra-large diameter prospecting drill pipe
  • A 12-3/4 ultra-large diameter prospecting drill pipe
  • A 12-3/4 ultra-large diameter prospecting drill pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Such as figure 1 , figure 2 , image 3 As shown, a drill pipe body 1 with a through hole is included. One end of the drill pipe body 1 is an externally threaded end 2, and the other end of the drill pipe body 1 is an internally threaded end 3, and the externally threaded end 2 The thread with the internal thread end 3 has a taper, the minor diameter L1 of the cone surface of the external thread end 2 is 239mm, the major diameter L2 of the external thread end 2 is 257mm, and the length L3 of the cone surface of the external thread end 2 Is 206mm; the outer side of the internal thread end 3 is provided with a taper hole 4, the major diameter L4 of the taper hole 4 is 260mm; the minor diameter L5 of the taper hole of the internal thread end 3 is 231mm, the internal thread end The major diameter L6 of the taper hole 3 is 247mm, and the taper hole length L7 of the internal thread end 3 is 234mm. The above structure makes the connection between the drill rods of the present i...

Embodiment 2

[0017] Such as figure 1 , figure 2 , image 3 As shown, a drill pipe body 1 with a through hole is included. One end of the drill pipe body 1 is an externally threaded end 2, and the other end of the drill pipe body 1 is an internally threaded end 3, and the externally threaded end 2 The thread with the internal thread end 3 has a taper, the minor diameter L1 of the cone surface of the external thread end 2 is 238mm, the major diameter L2 of the external thread end 2 is 256mm, and the cone length L3 of the external thread end 2 Is 205mm; the outer side of the internal thread end 3 is provided with a taper hole 4, the major diameter L4 of the taper hole 4 is 259mm; the minor diameter L5 of the taper hole of the internal thread end 3 is 230mm, the internal thread end The major diameter L6 of the taper hole of 3 is 246mm, and the length L7 of the taper hole of the internal threaded end 3 is 233mm. The above structure makes the connection between the drill rods of the present inve...

Embodiment 3

[0021] Such as figure 1 , figure 2 , image 3 As shown, a drill pipe body 1 with a through hole is included. One end of the drill pipe body 1 is an externally threaded end 2, and the other end of the drill pipe body 1 is an internally threaded end 3, and the externally threaded end 2 The thread with the internal thread end 3 has a taper, the minor diameter L1 of the cone surface of the external thread end 2 is 240mm, the major diameter L2 of the cone surface of the external thread end 2 is 258mm, and the taper length L3 of the external thread end 2 Is 207mm; the outer side of the internal thread end 3 is provided with a taper hole 4, the large diameter L4 of the taper hole 4 is 261mm; the small diameter L5 of the taper hole of the internal thread end 3 is 232mm, the internal thread end The major diameter L6 of the taper hole of 3 is 248mm, and the taper hole length L7 of the internal threaded end 3 is 235mm. The above structure makes the connection between the drill rods of th...

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Abstract

The invention relates to the technical field of drill rods, in particular to a prospection drill rod with ultralarge caliber in 12-3 / 4 inches. The prospection drill rod comprises a drill rod body with a through hole, one end of the drill rod body is an outer threaded end, the other end of the drill rod body is an inner threaded end, and the outer threaded end and the inner threaded end are provided with taper. By the aid of the above structure, connection between different drill rods is tighter and firmer, and meanwhile, torsion resistance of the prospection drill rod is improved by increasing the caliber thereof. The prospection drill rod with ultralarge caliber in 12-3 / 4 inches is successfully applied to prospection of gold ores and diamond ores, workable reserves are increased, prospection period is shortened, and the service life of a drill rig is prolonged, so that economic technology indexes of mine prospection rise to a new peak.

Description

Technical field [0001] The invention relates to the technical field of drill rods, in particular to a 12-3 / 4 super large diameter exploration drill rod. Background technique [0002] In recent years, the prices of gold and diamonds have continued to soar, causing the mining volume of gold mines and diamond mines to gradually increase, and the depth and width of mining have gradually increased. From the initial diameter of 3 meters to the current diameter of 7.5 meters, the diamond The performance requirements of tools are more stringent, requiring greater load capacity and torsion resistance. At present, the domestic mine drill pipe with the largest diameter is 6 inches, and the most commonly used in the world is the 9-10 inch single-thread and double-thread prospecting drill pipe. Nowadays, many drilling rig contractors are upgrading drilling equipment or manufacturing new drilling rigs. These drilling rigs can drill up to 8 meters in width. Drilling such a wide advance require...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/00E21B17/042
Inventor 赵钧羡
Owner 马斯特钻探工程(常州)有限公司