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JPS5741687B2 |
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JPS5739787Y2 |
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JPS5738749B2 |
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JPS57108387A |
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JPS5796284U |
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JPS5792294A |
A device for disengaging a grappling means from a core barrel, which are lowered in an engaged or connected state into a hollow drill rod, is actuated by a recess made in the drill rod bore, when the barrel approaches or assumes a workin...
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JPS5720703Y2 |
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JPS5760990U |
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JPS5740088A |
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JPS575558Y2 |
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JPS5651272B2 |
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JPS5651118Y2 |
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JPS5641797B2 |
A coring device comprising a tubular body provided at its lower end with a crown type drill bit.
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JPS56101514A |
A drill core inclinometer is releasably mountable in a core barrel and includes a device for measuring the vertical and transverse inclination of the drill core before the core is detached from the matrix. The device, once it has effecte...
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JPS5633659B2 |
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JPS5631723Y2 |
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JPS5631722Y2 |
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JPS5631536B2 |
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JPS5629437Y2 |
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JPS5664084A |
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JPS5659238U |
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JPS5615247Y2 |
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JPS5613640Y2 |
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JPS564712B2 |
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JPS55501069A |
PCT No. PCT/SU79/00126 Sec. 371 Date Aug. 26, 1980 Sec. 102(e) Date Jul. 10, 1980 PCT Filed Nov. 30, 1979 PCT Pub. No. WO80/01413 PCT Pub. Date Jul. 10, 1980.The apparatus for taking bedrock samples from the bottom of deep-water basins i...
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JPS5536794B2 |
1491393 Boring earth &c. BAKERDRILL INC 7 April 1976 [7 July 1975] 14033/76 Heading E1F Apparatus for obtaining formation samples from the bottom of a borehole H includes a bit 10 mounted in a housing 10, the bit 10 having passages 16, 1...
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JPS55131391U |
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JPS55114792A |
A flexible device comprising a flexible pipe allowing offshore drilling and measuring operations to be carried out in situ from e.g. a ship, comprises a base-plate for resting in a fixed position on the sea-bed, a rigid tubing the bottom...
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JPS5529236B2 |
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JPS5531112Y2 |
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JPS5578789A |
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JPS557515B2 |
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JPS5444242B2 |
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JPS5440859Y2 |
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JPS54120202A |
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JPS5426873Y2 |
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JPS5424711Y2 |
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JPS54116501U |
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JPS5422722Y2 |
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JPS54110602U |
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JPS5421282B2 |
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JPS5421281B2 |
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JPS5496701U |
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JPS5415841B2 |
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JPS5414722Y2 |
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JPS5415241B2 |
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JPS5434302U |
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JPS5410903U |
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JPS545802A |
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JPS5354484Y2 |
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