Patent · US Active

Underwater drilling arrangement and method for making a bore

US9140068B2 · kind B2 · utility

2Cited by

11References

11Claims

0Family size

Assignee

BAUER Maschinen GmbH · DE

Inventors

Thomas Bauer · Schrobenhausen, DE
Stefan Michael Finkenzeller · Reichertshofen, DE

Key dates

Filing date	Aug 22, 2012
Grant date	Sep 22, 2015
Priority date	—
Expiry date	May 8, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B21/12
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An underwater drilling arrangement for marking a bore in a bed of a lake, sea or river with a service platform which can be lowered for placing on the lake, sea or river bed, a drill drive which is mounted so that it is axially displaceable on the service platform, and a drill rod with drill head which can be driven in rotation via the drill drive. A conveying channel is formed in the drill rod, through which a conveying fluid together with excavated drill cuttings can be conveyed upwards, and a discharge opening for the conveying fluid together with the excavated drill cuttings is provided, via which the conveying fluid can be discharged underwater together with the excavated drill cuttings above the drill drive.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.