Verbessertes Bohrstange

Details

Veröffentlichungs-Nr.

EP2754851

Aktenzeichen

EP13151249

Anmeldetag

15. Januar 2013

Veröffentlichung

6. März 2019

Erteilung

6. März 2019

Rechtsraum

EP

IPC

E21B17/16

Abstract

A landing pipe is disclosed. The pipe includes a first tool joint, a second tool joint, and a main section extending from the first tool joint to the second tool joint, the main section having a first portion and a second portion. The first tool joint outer diameter is greater than both the main section first portion outer diameter and the main section second portion outer diameter. The main section first portion wall thickness is greater than the main section second portion wall thickness, and the main section second portion has a length range of 40 % to 85 % of an overall length of the landing pipe.

Anmelder

Firmen

Grant Prideco, L.P.
Vallourec Drilling Products USA, Inc.
VAM DRILLING USA, INC.

Land

🇺🇸 USA

Fachgebiete