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5487431 |
A subterranean sampling system of the direct push type that employes an elongated push tube in combination with hydraulic means to force the push tube down through subterranean strata includes an improved sampler unit which basically inc...
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5482123 |
A pressure core barrel including an inner tube containing a non-invasive gel for encapsulating a core sample. An anti-whirl core bit is employed, and the core bit and inner tube pilot shoe are configured and arranged to prevent damage to...
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5474141 |
Soil sampling apparatus for forming and containing a core sample of a predetermined depth of soil into which the soil sampling apparatus is driven. A pair of cooperable, core-defining core tube members are carried on a guide rod and are ...
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5460230 |
The present invention discloses a core bit comprised of a body having blades thereon, with several cutters on each blade, and nozzles that emerge on the face of the body. The nozzles deflect liquids substantially obliquely with respect t...
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5456325 |
A remotely actuated clamping apparatus for obtaining a secure coupling between a vibration unit generating longitudinally directed driving forces and a probe designed for penetrating the earth, such as into underwater sediments at water ...
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5450913 |
The invention provides an apparatus and method for taking samples of soil and other materials in an efficient manner as well as for maintaining a high level of integrity of the samples. Using a wire line and a release and retrieve assemb...
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5435399 |
A soil sampler for taking soil samples at multiple locations around a vehicle is disclosed. The soil sampler has a probe for withdrawing soil samples from the ground. The probe is suspended on a support structure or boom assembly which c...
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5425428 |
An apparatus and method for transporting a tool through a drill string in slimhole drilling operations is disclosed. A fluid passage such as a groove is formed in the inner wall of the pipe joint to permit the passage of fluid from one p...
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5417295 |
A drill string having a core sampling device at its lower end is suspended in an earth borehole by a rotary drilling rig at the earth's surface. Drilling fluid pulsations are monitored in the drilling fluid standpipe to generate characte...
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5417103 |
This invention relates to a method of determination of the deformation of the surface or subsurface of the earth resulting from an applied pressure change at a selected point, at a selected depth, in the earth, by measuring at least one ...
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5411087 |
A soil sampler for insertion into a pilot hole in the earth to extract contaminants in a vapor state. The sampler has an axially forward projection and an axially rearward projection that define a volume together with the body of the sam...
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5360074 |
The present invention provides a method for maintaining the mechanical integrity and for maximizing the chemical integrity of a core sample during transport from a subterranean formation to the surface. The method involves cutting and en...
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5351765 |
Coring apparatus and method are disclosed which provide for hydraulic latching of an inner core barrel within an outer core barrel. The apparatus includes a valve face disposed around the inner core barrel and valve seat disposed around ...
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5322135 |
A method for obtaining cores from an open borehole including rotary drilling a borehole, replacing the drill bit with an open face whipstock secured to the lower end of the drill string, positioning the whipstock above the formation to b...
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5322133 |
Soil sampling apparatus for forming and containing a core sample of a predetermined depth of soil into which the soil sampling apparatus is driven. A pair of cooperable, core-defining core tube members are carried on a guide rod and are ...
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5310013 |
A system for reliably indexing and separating sidewall core samples obtained with a sidewall coring tool comprises markers made of a magnetic material and a mechanism body made of a combination of magnetic and non-magnetic materials to r...
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5307884 |
Multi-level sampling device including compartmentalized longitudinal member for lowering into loose-material to be tested at multiple levels providing for individual containers to be simultaneously filled at each respective level through...
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5301759 |
An electrically-driven downhole coring method and apparatus which is powered by and conveyed to and from the bottom of the corehole by means of a heavy-duty electromechanical cable. The downhole core-sampling apparatus is equipped with a...
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5253720 |
The invention is a coring device which has features to seal off from the well fluids prior to taking of the specimen. The apparatus can be hydraulically or pneumatically actuated to move an inner string which is connected to a core barre...
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5253719 |
This invention provides a method for diagnosing formation damage mechanisms through the use of radially oriented core samples cut from the wellbore wall. Core samples are taken from the wellbore and analyzed under a number of different a...
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5211715 |
Core samples are obtained through production wells by inserting a milling tool through the production tubing string on the distal end of coilable tubing to mill out a window in the well casing. The milling tool is deflected by a whipstoc...
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5211249 |
The present invention provides an apparatus and method for obtaining a subterranean material sample. The inventive sampling apparatus comprises an elongate housing having a passageway extending longitudinally therethrough, a tip member m...
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5211248 |
A portable soil sampling device is provided that is easily positoned in confined and hard-to-reach locations. The device includes a mast assembly comprising a pair of upright masts mounted on a frame having a pair of wheels. By tilting t...
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5209309 |
A sidewall coring device includes a housing (12) which is operable to be disposed on the end of a drill string. A core tube (18) is disposed on one side of the housing on the interior thereof with an opening (20) provided for receiving c...
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5188190 |
Core samples are obtained through production wells by inserting a milling tool through the production tubing string on the distal end of coilable tubing to mill out a window in the well casing. The milling tool is deflected by a whipstoc...
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5186263 |
A device for obtaining soil samples beneath the surface of the ground. A sample tube is provided with a removable piston tip blocking the forward opening of the sample tube. Rearward movement of the piston tip is blocked by a removable p...
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5163522 |
The present invention is a sidewall coring assembly and method for taking a core sample at an angle to an existing borehole. The assembly includes a core barrel run at the end of a drill string and having a whipstock suspended below it, ...
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5101917 |
An in-place soil sampler assembly includes an outer barrel or tube coupled to a corer point at one end thereof. An inner samping tube is contained within the outer tube. A soil sample retainer has a support ring connected to one end of t...
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5076372 |
An under frame tool bar attachment, for a light truck with a frame having a pair of generally parallel spaced apart frame side bars, includes an elongated tool bar, a pair of mounting assemblies, each adapted for securing the tool bar to...
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5058686 |
A sliding-weight operated hole boring tool can be used to make holes of various length or depth in varied soil conditions. A uniquely-shaped tool bit helps to form a smooth, clean hole. In preferred embodiments, detachable elongated stem...
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5029653 |
The present invention comprises a novel method and apparatus for sinking drill holes in underground rock formations while generating drill cores as rock samples. More particularly, the present invention discloses a method and apparatus w...
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4989678 |
A soil sampling device and a sample containment device for containing a soil sample is disclosed. In addition, a method for taking a soil sample using the soil sampling device and soil sample containment device to minimize the loss of an...
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4979576 |
An elongate gun assembly with multiple gun chambers is assembled with locking keys holdinhg several chambers in place. In each, a bullet with bottom is placed adjacent to an explosive charge. An elongate cable having two end loops connec...
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4969528 |
The present invention comprises an improved method and apparatus for taking core samples, wherein a core drilling assembly driven by a downhole fluid motor is retrievably housed within a drilling tool of larger diameter, and wherein a pl...
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4922763 |
A method of taking soil samples consisting of the steps of; cutting at least one slit trench along a path transverse to bands of fertilizer in the soil; and taking a thoroughly intermixed sample from the cuttings. The samples are taken u...
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4848487 |
A core sample of an earth formation is obtained by drilling with a coring bit and circulating a coring fluid through the coring bit. The coring fluid contains no mud solids for contaminating the core sample or, in the alternative, contai...
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4828047 |
This invention relates to a method and apparatus for collecting subsamples of soils to be tested for infestation and nutrient content. The apparatus includes a sampling tube which is mounted on a collecting wheel which is mounted on a fr...
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4809790 |
A device for extracting an undisturbed sample of soil to be tested from a subsurface location uses a cutter to remove unwanted soil from above the undisturbed sample. The device is particularly intended for extraction of soil from contam...
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4775015 |
A sliding-weight operated hole boring tool can be used to make holes of various length or depth in varied soil conditions. A uniquely-shaped tool bit helps to form a smooth, clean hole. In preferred embodiments, detachable elongated stem...
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4735269 |
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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4729437 |
The sampler disclosed comprises a barrel assembly (21) that is hammered into the ground, from the surface. Hammer-drive-rods are disconnectable from the barrel by manipulation from the surface by means of a left-hand-screw-thread connect...
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4714119 |
A core drilling mechanism in an elongate housing is rotated from a vertical storage position to a horizontal operable position. This permits the transport downhole of a drilling mechanism of sufficient longitudinal dimension to drill a c...
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4708213 |
An improved hydraulic motor for downhole oil and gas wells to drive a sidewall core cutting apparatus comprising; a motor housing having a fluid inlet channel and a fluid outlet channel directed essentially parallel to each other and tan...
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4702327 |
In the preferred and illustrated embodiment of the core sample bullet construction, a multi-piece construction is set forth. There is a forward, or removable, nose portion. It nests with and connects to a carrier portion. The two portion...
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4679636 |
A low-cost retrievable light-weight high-speed thin-kerf reversible electrically-driven core-sampling method and apparatus that is independent of the weight of any drill pipe, drill collars, or any other heavy cylindrical or tubular cond...
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4671367 |
A drilling attachment for a utility truck designed for digging pole holes for ordinary utility and telephone poles is disclosed herein. The attachment is intended to replace the auger portion of a conventional auger digger when it is nec...
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4667754 |
A flexible plug used in combination with a hollow stem auger and connected drill head which has a hollow housing. The plug includes a plurality of flexible shape-retaining arcuate projections extending towards the plug central axis.
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4664205 |
An axial bore is defined throughout the hydraulic lift inner barrel. This axial bore is communicated with the interior of the inner tube thereby allowing the interior of the inner tube to be flushed prior to initiation of the coring oper...
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4657445 |
Disclosed is an improved core drill and a method of detachably coupling the same to a power driving unit to expedite the removal of a core therefrom. This is achieved by equipping the rear end of the drill stem with a fixedly attached ex...
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4651835 |
An improved core catcher for use within a coring tool is provided by shaping the lower portion of the core catcher so as to form a collapsible lower section. The collapsible lower section is structurally collapsed as the core catcher is ...
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