Think and Vision Gmbh

Anton Paar Gmbh

Advanced Drilling Solutions Gmbh

Anton Scheibelmasser

Bouchra Lamik-Thonhauser

Johann Jud

Anton Kotov

Alexander Fine

Manfred Gutschelhofer

Christof Umfer

Abdelrhani Lamik

Florian Aichinger

Michael Korak

Franz Michael Fasch

Robert Karpf

Julia Ganser

Manfred Krenn

Werner Lindner

A method and a measuring device measure the density of fluid media with a sensor having a density measuring device. A frequency oscillator with mass balance is used as the density sensor and all components related to the frequency oscillator with mass balance for the oscillation behavior, oscillation excitation and oscillation evaluation, as well as the frequency oscillator with mass balance directly associated with the measuring and sensor electronics, are enclosed in a housing or cartridge. These components are used with the frequency oscillator with mass balance in the cartridge, and/or the frequency oscillator with mass balance together with the cartridge is adjusted or calibrated using measurement standards and adapted as necessary to the specific application. The cartridge with the frequency oscillator with mass balance is releasably or replaceably connected with the measuring device or its base body before the beginning of the measuring operation to investigate the media.

Method and instrument for measuring the density of fluid media

A drill pipe, particularly for a drill string, having an outer and an inner pipe (), a female connector () with an internal thread at one end of the drill pipe (), and a male connector () with an external thread at the end opposite from the female connector (), wherein the inner pipe () is arranged substantially concentrically in the outer pipe () and the drill pipe () has a center region () with an internal diameter. The outer pipe () has an inwardly thickened wall portion at an end region () on the male connector side, having a smaller internal diameter than the internal diameter of the center region (), and the internal diameter of the outer pipe () remains substantially the same at an end region () on the female connector side in relation to the internal diameter of the center region ().

Drill pipe

A drill pipe (), particularly for a drill string, has at least one electrical conductor () and an inner pipe () which is arranged inside the drill pipe (). The drill pipe () and the inner pipe () are spaced at a distance to one another in sections, wherein the drill pipe () and inner pipe () bound a hollow space (). At least one electrical conductor () is arranged on one outer side of the inner pipe.

In a method and device for supplying at least one electrical consumer () of a drill pipe with an operating voltage, at least one electrical component () on pipe rods () of the drill pipe is tested for defects with a test voltage that is smaller than the operating voltage before the operating voltage is applied, and the operating voltage can only be applied when no defects are present.

Method and device for supplying at least one electrical consumer of a drill pipe with an operating voltage

A device for connecting two electrical lines to essentially tubular connecting elements () of drill pipes (), which elements can be screwed to one another, characterized in that on one connecting element (), a first electrical contact element () is located to be able to move in the direction of rotation of the connecting element (), and that on the other connecting element (), a second electrical contact element () is located in a fixed manner.

Device for connecting electrical lines for boring and production installations

Growing community of inventors

Graz, Austria

Anton Scheibelmasser