WELL INSTALLATION ELECTRICAL TRANSMISSION SYSTEMS

Well installation electrical transmission system for use in a well installation having a downhole metallic structure (2) and a platform (3) provided above the level of a borehole (B) for the transmission of at least one of electrical power and electrical communication signals between an out of hole...

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Bibliographische Detailangaben
Hauptverfasser:	JARVIS, Leslie David, HUDSON, Steven Martin
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTRICITY FIXED CONSTRUCTIONS GENERATION MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	Well installation electrical transmission system for use in a well installation having a downhole metallic structure (2) and a platform (3) provided above the level of a borehole (B) for the transmission of at least one of electrical power and electrical communication signals between an out of hole station (4) and a downhole station (5). In some instances, the out of hole station is arranged to modulate current applied to the downhole metallic structure by an impressed current cathodic protection system. In some instances the out of hole station is connected electrically between a portion of the platform or of the metallic structure galvanically connected to the downhole metallic structure, and a downhole connection location on a second set of downhole metallic structure in a second borehole.