Patent · US Active

Coring Apparatus and methods to use the same

US10301937B2 · kind B2 · utility

5Cited by

25References

10Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

Steven E. Buchanan · Pearland, US
Lennox Reid · Houston, US
Rachel Lavaure · Le Plessis-Robinson, FR

Key dates

Filing date	Sep 19, 2016
Grant date	May 28, 2019
Priority date	—
Expiry date	Jun 29, 2037

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B25/16
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A coring bit assembly for conveyance via wireline or drillstring in a wellbore extending into a subterranean formation. The coring bit assembly includes a coring shaft and a thrust ring coupled to an end of the coring shaft. A static sleeve is disposed inside the coring shaft and having a flange coupled to the thrust ring to space the static sleeve from the coring shaft to form a drilling fluid passageway between the coring shaft and the static sleeve. An axial fluid pump is disposed on the coring shaft to engage with the static sleeve to drive drilling fluid through the drilling fluid passageway formation.

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