Tiltmeter for EAT applications

An electro acoustic technology (EAT) based micro seismic sensor and tiltmeter system and method is described for the measurement of minute deformations in downhole formations caused by hydraulic fracturing or other sources of pore pressure changes. A number of sensor arrays are described that are in...

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Bibliographische Detailangaben
Hauptverfasser:	Warpinski, Norman Raymond, Wheeler, Nicholas Clive Spencer, Davis, Eric James, Jaaskelainen, Mikko, Park, Brian Vandellyn
Format:	Patent
Sprache:	eng
Schlagworte:	DETECTING MASSES OR OBJECTS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	An electro acoustic technology (EAT) based micro seismic sensor and tiltmeter system and method is described for the measurement of minute deformations in downhole formations caused by hydraulic fracturing or other sources of pore pressure changes. A number of sensor arrays are described that are installed in clamp-on EAT devices installed in tool wells located in close proximity to hydraulically fractured wells.