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A 14-3/4 inch ultra-large diameter prospecting drill pipe

A technology of super large diameter and drill pipe, applied in the direction of drill pipe, drill pipe, drilling equipment, etc., to achieve the effect of enhancing torsion resistance, increasing effective width and tight connection

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 well drilling technology

Method used

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  • A 14-3/4 inch ultra-large diameter prospecting drill pipe
  • A 14-3/4 inch ultra-large diameter prospecting drill pipe
  • A 14-3/4 inch ultra-large diameter prospecting drill pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment one: if figure 1 , figure 2 , image 3 As shown, a 14-3 / 4 inch super-large-diameter prospecting drill pipe according to the present invention includes a drill pipe body 1 with a through hole, one end of the drill pipe body 1 is an external thread end 2, and the drill pipe body 1 is an external thread end 2. The other end of the rod body 1 is an internally threaded end 3, and the threads of the externally threaded end 2 and the internally threaded end 3 have a taper, the small diameter L1 of the tapered surface of the externally threaded end 2 is 264mm, The large diameter L2 of the cone surface is 282mm, and the length L3 of the cone surface of the external thread end 2 is 219mm; the outside of the internal thread end 3 is provided with a taper hole 4, and the large diameter L4 of the taper hole 4 is 284mm; The small diameter L5 of the taper hole of the internal thread end 3 is 253mm, the large diameter L6 of the taper hole of the internal thread end 3 is 2...

Embodiment 2

[0015] Embodiment two: if figure 1 , figure 2 , image 3 As shown, a 14-3 / 4 inch super-large-diameter prospecting drill pipe according to the present invention includes a drill pipe body 1 with a through hole, one end of the drill pipe body 1 is an external thread end 2, and the drill pipe body 1 is an external thread end 2. The other end of the rod body 1 is an internally threaded end 3, and the threads of the externally threaded end 2 and the internally threaded end 3 have a taper, the small diameter L1 of the tapered surface of the externally threaded end 2 is 265 mm, The large diameter L2 of the conical surface is 283mm, and the length L3 of the conical surface of the external thread end 2 is 220mm; the outside of the internal thread end 3 is provided with an expanding taper hole 4, and the large diameter L4 of the expanding taper hole 4 is 285mm; The minor diameter L5 of the taper hole of the internal thread end 3 is 254 mm, the major diameter L6 of the taper hole of t...

Embodiment 3

[0018] Embodiment three: as figure 1 , figure 2 , image 3 As shown, a 14-3 / 4 inch super-large-diameter prospecting drill pipe according to the present invention includes a drill pipe body 1 with a through hole, one end of the drill pipe body 1 is an external thread end 2, and the drill pipe body 1 is an external thread end 2. The other end of the rod body 1 is an internally threaded end 3, and the threads of the externally threaded end 2 and the internally threaded end 3 have a taper, and the small diameter L1 of the tapered surface of the externally threaded end 2 is 266mm. The large diameter L2 of the cone surface is 285mm, and the length L3 of the cone surface of the external thread end 2 is 221mm; the outside of the internal thread end 3 is provided with a taper hole 4, and the large diameter L4 of the taper hole 4 is 286mm; The minor diameter L5 of the taper hole of the internal thread end 3 is 255 mm, the major diameter L6 of the taper hole of the internal thread end...

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Abstract

The invention relates to the technical field of a drill pipe, in particular to a 14-3 / 4 inch oversized caliber prospecting drill pipe, which comprises a drill pipe body, wherein the drill pipe body is provided with a through hole, one end of the drill pipe body is an outer thread end, the other end of the drill pipe body is an inner thread end, and threads of the outer thread end and the inner thread end respectively have a taper. The outer threads are matched with the inner threads, so the connection of the drill pipes is more tight and firm; and the caliber is increased, so the torsion resistance capability of the drill pipe is improved, the effective width of drilling is increased, the reserves are improved, the drilling period is shortened, and the service life of a drilling tool is prolonged.

Description

technical field [0001] The invention relates to the technical field of drill pipes, in particular to a 14-3 / 4 inch ultra-large-diameter prospecting drill pipe. Background technique [0002] In recent years, the prices of gold and diamonds have continued to soar, which has gradually increased the mining volume of gold mines and diamond mines, 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 performance requirements of the tool are more stringent, requiring greater load capacity and torsion resistance. At present, the largest caliber mine drill pipe in China is 6 inches, and the most commonly used in the world is 9 to 10 inches. Nowadays, many drilling rig contractors are upgrading their 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-...

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
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