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Systems and methods for enhancing data acquisition operations in seismic surveys |
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Differential pressure mover |
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Borehole microseismic systems and methods |
— |
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Method and apparatus for monitoring acoustic activity in a subsurface formation |
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Handling tool for radioactive sources of logging while drilling devices |
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Transmitter for sonic logging-while-drilling |
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1990-07-31 |
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Tool for closing a well tubing |
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— |
1988-03-01 |
