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4638872 |
A well coring apparatus is provided with the capability for monitoring the length of the core in the inner barrel (32) of a core barrel (16) and the rate at which the core enters the inner barrel (32). The device includes a Sonic Core Mo...
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4629011 |
Apparatus for extracting core samples from the side walls of a subterranean well bore comprises an axial force generating tool insertable into the well with such tool carrying a stationary support rod and the movable element of such tool...
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4625813 |
Coring of a subaqueous structure having a significant water pressure head on one side is carried out through a full port valve assembly mounted on the inner or dry side of the structure. With the valve open, the barrel of a coring device...
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4607710 |
A positively driven full closure core catcher for use with soft or unconsolidated cores is comprised of an inner tube shoe into which a plurality of windows have been cut. In each window is a corresponding one of a plurality of flapper v...
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4606416 |
A core spring type core catcher and a full closure core catcher are completely concealed from the core within a coring tool. The full closure catcher is reliably actuated to assume a closed configuration without dependence upon gravity o...
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4605075 |
A fragmented or unconsolidated core can be cut and retained within a coring tool without substantial disturbance of the core by the use of a shrouded core catcher. A core catcher is concentrically disposed within the coring tool and outs...
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4601354 |
In accordance with the present invention, rotation of the inner barrel relative of the axis of symmetry of the core barrel (indicative of core twist off or core sand erosion during coring operations) is detected by a novel sensor combina...
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4598777 |
A well coring apparatus (10) includes an outer barrel (12) and an inner barrel (18). The inner barrel (18) is sealed at one end with a sealing member (80) and has a reciprocating piston (70) disposed in the other end thereof. An O-ring (...
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4588036 |
An apparatus and a method to obtain continuous undisturbed sampling, by rotational boring in non-plastic granular tills. The designation of non-plastic granular till refers to a heterogeneous glacial deposit containing an unstratified an...
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4573539 |
A coring tool, which includes a flexible wire mesh in which the core is disposed, includes a mechanism for maintaining tension on the wire mesh sleeve which then seizes the core disposed within the sleeve, and which serves to retain the ...
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4569403 |
Sampling bullets of the type which are fired into rock formations adjacent a well bore. Surprising and unexpected increases in the service life of the bullet and reliability in obtaining and retrieving core samples have been achieved.
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4558749 |
An improved anti-jamming mechanism for use in a coring tool is devised by providing a rotary jar within the inner barrel of the coring tool. The inner barrel is connected to a bearing assembly into which a bearing shaft is axially and co...
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4549612 |
An apparatus for removing soil samples from the root zone of a potted plant includes a first longitudinal tubular member and a second longitudinal member telescopically mounted within the first tubular member. The second member has a low...
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4534231 |
A process and device for extracting soil samples, wherein a core sample is extracted from the ground which is to be analyzed and part of the soil is removed from the core for subsequent analysis or other after-treatment. The core sample ...
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4529036 |
A method of determining the orientation of a fracture or fractures created in a subterranean formation penetrated by a wellbore is provided. The method comprises creating a fracture in the formation extending from a lower end portion of ...
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4518051 |
The present invention provides a percussion actuated wire line sampler for use in a drill string. The sampler includes a core barrel adapted to be inserted into the drill string and to be freely movable therein. A hydraulic percussion de...
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4518050 |
The present invention provides disclosure of a core sampler that includes a rotatably extending outer barrel containing a relatively non-rotating core barrel which is extendable with the outer barrel in response to drilling mud pressure ...
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4512419 |
An improved coring device that incorporates a nonrotatable inner barrel disposed within the outer driving structure of the drill string which is coupled to a coring bit. A woven metal mesh sleeve is circumferentially mounted outside the ...
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4499956 |
In accordance with the present invention, rotation of the inner barrel relative of the axis of symmetry of the core barrel (indicative of core twist-off or core sand erosion during coring operations) is detected by a novel sensor combina...
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4499955 |
In accordance with the present invention, rotation of the inner barrel relative of the axis of symmetry of the core barrel (indicative of core twist off or core sand erosion during coring operations) is detected by a novel sensor combina...
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4492275 |
In accordance with the present invention, rotation of the inner barrel relative of the axis of symmetry of the core barrel (indicative of core twist off or core sand erosion during coring operations) is detected by a novel sensor combina...
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4461360 |
An apparatus for drilling a sidewall core from a borehole which has a cylindrical housing with an opening through which a core bit and barrel are extended and retracted. In a preferred embodiment there is a fixed plate on opposite sides ...
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4456079 |
In a rotary table driven hollow auger type sampling device, a rod is mounted at an end above the rotary table to be substantially fixed against rotation, but for axial movement. The rod extends through a hollow spindle driven by the tabl...
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4449593 |
This relates to sidewall coring tools used to obtain samples of the formation through which the wellbore is drilled. It includes a housing which supports a guide means along which the drill bit, core barrel and motor can be moved to exte...
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4418770 |
An inner tube 2 of a core barrel is releasably locked within an outer tube 1 by pivotable latch feet 32 engaging an annular recess 31 in the outer tube. A retrieving head 3 is slidably coupled via a pin 40 and slot 41 to the inner tube, ...
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4396074 |
This invention relates to an apparatus for cutting cores from the sidewall of a borehole after the borehole has been drilled. The apparatus includes an elongated housing which supports guide means which provides a path along which a core...
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4386473 |
In a method and apparatus for the recovery of sediments from the sea bottom, a suction head having a mouth is lowered into the sediment, raised from the sediment to form a depression, laterally moved to a new location adjacent the first ...
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4371045 |
A method and apparatus suitable for stabilizing hydrocarbon cores are given. Such stabilized cores have not previously been obtainable for laboratory study, and such study is believed to be required before the hydrate reserves can become...
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4356872 |
A core barrel flushing device and method is disclosed particularly for flushing drilling fluid, mud and other undesirable material from a pressure core barrel downhole at existing conditions and pressure. The flushing device (F) comprise...
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4354558 |
A method of core cutting and apparatus operable on a seven conductor wireline logging cable for drilling a hole in the sidewall of a drill hole which comprises an elongted housing with a hydraulically operated backup shoe mounted within ...
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4336849 |
An earth drilling device for extracting earth samples including a rotatable drill tube and means for rotating said drill tube, a drill bit supported by said rotatable drill tube, said drill bit and said drill tube defining an inner shoul...
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4332301 |
A method and a machine for obtaining of samples from the ground to determine the presence of certain substances in the ground. A drilling machine drives a drill down into the section of the ground to be prospected and cooling air is forc...
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4285398 |
A duct-forming device is disclosed for use in a well completion apparatus of the kind, wherein a bore hole casing is positioned in a bore hole and duct-forming devices of alkali- and acid-resistant metal--such as steel--are secured at sp...
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4280569 |
An apparatus operable on a wireline logging cable for drilling a hole in the sidewall of a drill hole which comprises a hydraulically operated backup shoe for wedging the apparatus at a selected location in the drill hole, a hydraulic mo...
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4252200 |
Disclosed is a device for obtaining a plurality of samples from mineral deposits such as placer deposits to determine the presence of valuable metals. The device comprises a tubular member having a plurality of windows extending along it...
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4234046 |
A pressure differential seafloor corer-carrier for obtaining long core samples of seafloor sediments. The corer-carrier is composed of two main components: The first component is a pump assembly that pumps seawater and sediment as to cre...
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4177624 |
An aquatic plant sampler which includes an aquatic craft characterized by a plurality of pontoons secured to a flat deck member and propelled and steered by a dual power system including an above water air propulsion system and an underw...
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4156469 |
A core barrel having a hollow cutting ring is placed within a hollow drill and connected to a coupling which permits the core barrel to remain stationary while the bit rotates and also produces pressure to force the sharp edge of the cut...
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4143720 |
In a system for obtaining core samples from a submerged bottom a core barrel and holder assembly attached at its upper end to a cable is dropped through the water from a floating vessel, and after the barrel has penetrated the submerged ...
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4130170 |
A probe construction for use in geological surveys designed to extract earth samples at a predetermined depth. The probe consists essentially of an elongated metal body with a hollow core, the longitudinal axis of the core being at appro...
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4128134 |
Method and apparatus for cutting a core in a bore hole and means of marking the core in which a groove is cut into the core along its length and providing an external arm in a definite angular relation to the core marking means and which...
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4098360 |
A soil sample core extraction tool having a handle member on which is movably mounted a soil probe member and a clutch arranged for selectively preventing movement of the soil probe with respect to the handle member. By sequential actuat...
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4081040 |
An open-spindle earth sampling apparatus for taking and retrieving core samples of coil comprising a drilling apparatus having rotary power means, a hollow auger section, a hollow-centered drive shaft connected to the drilling apparatus,...
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4066139 |
A sampling drill comprising a plurality of drill rods coupled together to form a drill stem suspended from a drill head, each of the drill rods comprising a pair of substantially concentric tubular members defining an inner central passa...
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4043407 |
Equipment for drilling and obtaining samples from, and/or testing at, locations where the soil being investigated is unstable, or where access to the equipment is difficult during drilling, for example underwater. Samples can be obtained...
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4014393 |
An apparatus for coupling to the base of a vertically suspended core barrel inside a drilling rig for controllably receiving intact the columnar mass of core material contained therein. A tubular housing is provided for connecting to the...
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4002213 |
The disclosure includes additional features of the apparatus and technique disclosed in Applicant's U.S. application Ser. No. 575,429. For example, in one embodiment, the motor is adapted to drive a rotary drill rod of the type mentioned...
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3977479 |
A method of obtaining geological specimens is disclosed along with methods of producing a geological or geochemical map and apparatus for accomplishing the method. A fixed wing or other airborne vehicle, such as a light plane or a helico...
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3970156 |
A water-weighted corer comprising a cylindrical tank mounted concentrically n a core barrel intermediate the coring tube and the shackle is provided. The tank has a water inlet at its bottom and an air vent at its top so that during desc...
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3915245 |
An apparatus for carrying out a test boring wherein the drilling and sampling operations are carried out in one operation is described. A drilling bit is detachably secured to a modified split-barrel sampler which serves as the bottom me...
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