Vorrichtung zum Übertragen von Informationen innerhalb eines Bohrrohrstranges einer Bohrvorrichtung mittels Druckimpulsen in einer strömenden Flüssigkeit, insbesondere Bohrspülflüssigkeit

The appts. comprises an information generator, connected to a transmitter unit (4) producing the pressure impulses. At the surface, a receiver intercepts and evaluates the signals. In the novel transmitter unit, within the flow, is an elastic flow resistance body (6). An actuator causes variation in...

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Bibliographic Details
Main Authors WROBEL, DIETER, 45891 GELSENKIRCHEN, DE, FELD, DAGOBERT., 29331 LACHENDORF, DE, VORHOFF, WERNER.., 46483 WESEL, DE
Format Patent
LanguageGerman
Published 10.07.1997
Edition6
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:The appts. comprises an information generator, connected to a transmitter unit (4) producing the pressure impulses. At the surface, a receiver intercepts and evaluates the signals. In the novel transmitter unit, within the flow, is an elastic flow resistance body (6). An actuator causes variation in the cross section (Q) available for flow. These variations correspond to the required signal pressure impulses.
Bibliography:Application Number: DE19961007402