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Titanium alloy drill rod joint

A technology of drill pipe joints and titanium alloys, which is applied in the direction of drill pipes, drill pipes, drilling equipment, etc., can solve problems such as easy wear, achieve the effects of improving service life, avoiding the risk of wear failure, and solving wear-resistant problems

Pending Publication Date: 2020-08-21
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcoming that the titanium alloy drill pipe joint in the prior art is easy to wear during use, and to provide a titanium alloy drill pipe joint

Method used

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  • Titanium alloy drill rod joint
  • Titanium alloy drill rod joint
  • Titanium alloy drill rod joint

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Embodiment Construction

[0025] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate ...

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Abstract

The invention discloses a titanium alloy drill rod joint, and belongs to the field of drill rods. The titanium alloy drill rod joint comprises a drill rod joint body, a circle of groove is formed in amiddle section of the drill rod joint body, a middle protection ring is arranged in the groove, and a wear-resisting material layer is welded to the outer surface of the middle protection ring in a laying mode; and the outer diameter of the wear-resistant material layer is greater than that of the drill rod joint body, the drill rod joint body is made of a titanium alloy material, the middle protection ring is made of carbon steel, and the hardness of the wear-resistant material layer is greater than HRC53. According to the titanium alloy drill rod joint, the abrasion resistance problem of the drill rod joint made of a titanium alloy is effectively solved, and the risk of abrasion failures of the drill rod joint is reduced.

Description

technical field [0001] The invention belongs to the field of drill pipes, in particular to a titanium alloy drill pipe joint. Background technique [0002] Titanium alloy drill pipes used in oil and gas exploration and development have the characteristics of corrosion resistance, low density, high strength and good elasticity, and are used in drilling operations in highly acidic oil and gas reservoirs, ultra-deep wells and ultra-short horizontal wells. At the same time, the titanium alloy drill pipe material has strong oxidation and poor wear resistance, and the wear-resistant band material of the conventional steel drill pipe cannot be effectively fused and combined with the titanium alloy material, and the titanium alloy drill pipe is a precious metal. Its material cost is about 25 times that of steel drill pipe, which is much higher than that of steel drill pipe. Without the protection of the wear-resistant belt layer, the titanium alloy drill pipe joint will be severely...

Claims

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Application Information

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IPC IPC(8): E21B17/046
CPCE21B17/046
Inventor 刘永刚冯春尹成先
Owner BC P INC CHINA NAT PETROLEUM CORP
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