Schlumberger Technology Corporation

David Scott

Ashley Bernard Johnson

David Milton Eslinger

Jonathan Robert Hird

Andrew David Robinson

Dariusz Strapoc

Timothy McAlinden

Can Evren Yarman

Nicholas Ivars Abolins

A bit to detect drill bit metamorphism (DBM) may include a bit head. A bit to detect DBM may include at least one cutting element connected to the bit head. A bit to detect DBM may include a temperature sensor on or in the at least one cutting element. A bit to detect DBM may include an electronics module in communication with the temperature sensor. A bit to detect DBM may include a wiring conduit from the at least one cutting element and through at least a portion of the bit head to the electronics module.

Drill bit metamorphism detection

An apparatus for cleaning subterranean wellbores is described. The apparatus comprises a sleeve member which is fixed to a part of the drillstring and a rotatable jet head with nozzles through which an abrasive fluid is discharged. The nozzles are mounted such that the fluid jet is directed to an area of the wellbore immediately adjacent to a leading edge of the sleeve. The nozzle head is restricted in its protrusion out of the sleeve.

Jetting tool for well cleaning

Growing community of inventors

Huntingdon, United Kingdom

David Scott