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GB917685A
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Nuclear well logging method
|
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US2864173A
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Electrical well caliper tool
|
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US2779913A
|
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Dual frequency well logging system
|
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US2779912A
|
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Electrical well logging system
|
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US2722657A
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Means for detecting changes in dielectric constant of thin strata of lithological formations traversed by a borehole
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DE1015398B
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Device for determining the position of connecting sleeves on pipes in the borehole
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US2703053A
|
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Firing circuit for perforating guns
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US2768684A
|
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Well perforating and logging methods and apparatus
|
|
US2772368A
|
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High temperature scintillometer
|
|
US2725485A
|
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Radioactivity well logging
|
|
US2659014A
|
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Radioactivity well logging system
|
|
US2758217A
|
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Automatic scintillation counter
|
|
US2740053A
|
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Radiation well logging system
|
|
US2740052A
|
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Radioactivity well logging apparatus
|
|
US2740051A
|
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Radioactivity well logging apparatus
|
|
US2782365A
|
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Electrical logging apparatus
|
|
US2617852A
|
|
Electrical well logging system
|
|
US2648012A
|
|
Nuclear well logging
|
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US2670798A
|
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Oil well cementing tool
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US2607417A
|
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Gun perforator
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