A data logger comprises a mainboard and a jacketing, wherein the mainboard is covered
with the jacketing, wherein the data logger is capable to be carried by said drilling fluid …

Devices, systems and methods for navigating and determining the location of downhole oil
and gas wellbore tools are disclosed. The devices, systems, and methods may include a …

A method and device are described for making in situ measurements of the density and
viscosity of downhole fluids at subterranean wells. An oscillator circuit is deployed in the well …

Embodiments of the disclosure include an unmanned submersible vehicle for use in
surveying subsurface wells. The unmanned submersible vehicle may be inserted into a well …

This disclosure relates generally to equipment utilized and operations performed in
conjunction with a subterranean well and, in one example described below, more …

Methods of monitoring conditions within a wellbore comprise providing a plurality of signal
transmitters and a plurality of signal receivers within the wellbore. Marker materials …

BACKGROUND 0003 Gaseous hydrocarbon wells may produce and accu mulate liquids
within the wellbore conduit, resulting in a hydraulic backpressure upon the producing Zone …

2021-03-17 Assigned to DynaEnergetics Europe GmbH reassignment DynaEnergetics
Europe GmbH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR …

A method and device are described for making in situ measurements of the density and
viscosity of downhole fluids at subterranean wells. An oscillator circuit is deployed in the well …

An apparatus for determining properties of an uncharacterized downhole fluid. The
apparatus comprises an oscillation driver circuit comprising an amplifier having an output …