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The seismic source, and method for generating seismic waves in a formation surrounding a borehole drilling
The seismic source, and method for generating seismic waves in a formation surrounding a borehole drilling
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机译：地震源以及在井眼周围的地层中产生地震波的方法
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摘要
"Seismic source, and method for generating seismic waves in a formation surrounding a borehole drilling. A seismic source extended axially is revealed. In a mode of realization, the seismic source includes multiple pressure storage chambers, each having an inlet valve and an outlet valve.The intake valve is coupled between the storage chamber and pressure inside the drill column (8), and the outlet valve is similarly coupled between the storage chamber pressure and the annular space (20) around the drill column.The use of multiple chambers for storing pressure allows the pressure of the seismic source is extended axially to advantageously increase the fraction of the seismic energy transmitted into the formation, while preventing damage to the formation.
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