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3878904 |
Apparatus for extracting core samples from loosely packed or unconsolidated material employing a sampling tube having a self-actuating closure at the end of the core sampling tube to prevent loss of the sample as it is withdrawn from mat...
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3874464 |
The process employs a rotary drill rod comprising an elongated pipe having a longitudinally extending bore therethrough and a percussive bit at the distal end thereof. An abutment is provided relatively transverse the bore adjacent the b...
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3872935 |
Large-diameter, undisturbed soil core samples were obtained from a variety of soils. Handling and fracturing of the undisturbed soil cores were minimized by encasing the cores in heat-shrinkable plastic tubes during sampling operations.
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3857289 |
In measuring the fluid content of soil by circulating a fluid within a borehole and measuring the amount of soil fluid it entrains, the borehole is formed by drilling-in a telescoping auger that has extendable internal conduits and is ar...
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3856355 |
A method of recovering segregatable particles in an underground formation includes the steps: A. progressively rotatably cutting into the underground formation both generally vertically and laterally to produce an underground swath, and ...
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3848682 |
This invention is directed to an apparatus utilized for extracting earth cores from sub-sea formations. In particular, the apparatus may be dropped from a carrier vessel, whereupon it descends as a completely self contained unit to the o...
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3843198 |
In the sampling of a rock surface, dust that is formed by action of a compressed air driven rock cutting wheel is entrained in an air stream that is drawn into a shroud that surrounds all but a minor part of the cutting edge of the wheel...
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3812922 |
A deep ocean mining, mineral harvesting and salvage vehicles including a body integrally formed of a positive buoyancy material and having recesses therein to receive a plurality of variable buoyancy tanks. Eduction and coring mining sys...
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3805900 |
A device to be used during geological exploration for obtaining a specimen of soil lying beneath the surface of the earth. The device is to be dropped from the air, e.g., from a hovering helicopter, and the nose thereof allowed to penetr...
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3794127 |
A coupling for connecting an auger to a driver so as to allow core sampling while the auger is positioned within the drilled hole and connected to the driver. One embodiment of the coupling has a ring positioned outwardly of the adjacent...
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3790213 |
Metal particles, as for example gold, are recovered from sub-surface locations without requiring removal of the overburden. In particular, recovery of gold particles from cracks in underground or underwater bedrock is enabled. A process ...
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3768580 |
An improved apparatus for taking an undisturbed soil sample supported by a flexible hose and an additional supporting tube which is coaxially positioned within the sampling tube proper, provided with clamping fingers for pinching off the...
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3664438 |
A rotary diamond rock core drill capable of obtaining a three-quarter inch iameter core four inches long at any depth down to 6,000 feet is provided. The drill is adapted to be used with manned deep submersibles and is operated by the su...
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3646997 |
Shaley earth formations are drilled or otherwise treated with reduced difficulty through the use of water-in-oil invert emulsion fluids wherein the aqueous phases of the emulsions possess particular water vapor pressures relative to the ...
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3631934 |
A core sample is removed from a soil or rock mass by boring a hole in the mass to a depth at which sampling is to begin and thereafter cutting a second hole in extension of the first hole and of a smaller diameter. The second hole is of ...
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3630296 |
A well bore sidewall sampling tool comprises a casing secured to the end of a drill pipe and mounting therein a sample core cutter head carrying a flexible collection receptacle. An actuating mechanism within the casing, operated by flui...
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3627067 |
A core-drilling system comprising a novel method which accommodates disablement of an overshot for selective or controlled release of its coupling relation with spearhead or latch structure of a core barrel assembly within a drill hole w...
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3621924 |
A core barrel device for producing and retrieving subterranean cores, particularly from soft or unconsolidated formations, utilizes a fluid-pressure collapsible sleeve above the corer to receive and hold the core material and permit its ...
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3602320 |
This invention relates to an underwater, manned vessel useful for drilling in piles, setting anchors and taking samples of the bottom of a body of water. A conventional submarine vessel is modified to have a vertical passage therethrough...
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3525406 |
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3485308 |
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3480093 |
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3468387 |
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3464504 |
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3440886 |
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3438452 |
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3425940 |
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3405772 |
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3373826 |
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3353612 |
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3347101 |
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3331249 |
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3330367 |
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3323604 |
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3321034 |
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3318394 |
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3306110 |
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3302464 |
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3295616 |
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3280925 |
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3272268 |
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3264877 |
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3227228 |
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3225602 |
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3224512 |
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3221558 |
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3173500 |
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3169589 |
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3123157 |
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3118510 |
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