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WO/1998/055730A1 |
A retrieval head (10) is disclosed for coupling to a down hole tool for retrieving a drill bit composed of individual drill bit segments (14). The down hole tool is adapted to travel through a drill string and a drive sub (12) attached t...
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WO/1998/003768A1 |
A soil-sampling tool (10) extends along a longitudinal axis and includes a barrel (15) having a soil-penetrating distal end (23), and a cap (21) for closing the end. the barrel has both a seal surface (121) spaced from the end and a tape...
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WO/1997/048878A1 |
The invention discloses a core barrel inner tube (1), in particular in the field of oil prospecting, its internal surface (2) being coated with hairs (3) pointing from the latter towards the inside of the said inner tube (1), method of m...
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WO/1997/046790A1 |
Core machine intended particularly to the oil prospection field, comprising a core crown (2), an external tube (3) for the rotational driving of the core crown (2), and an internal tube (4) having a free front end element (7) intended to...
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WO/1997/046789A1 |
The invention concerns a column closure cap and a method of preparing and carrying out column investigations using caps of this type, the method being applicable in particular for extracting undisturbed soil and rock samples for preparin...
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WO/1997/032110A2 |
A coring apparatus permitting taking of a non-rotating core sample and testing of same, as by NMR, prior to breakage and ejection from the apparatus. A core barrel is suspended from a rotating outer sleeve by one or more bearing assembli...
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WO/1997/026439A1 |
A core sampling method, particularly for the oil industry, wherein actual core sampling is performed by means of a core sampler (1) comprising at least one inner barrel (5), an outer barrel (2) and a bit (3), and a substantially axial co...
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WO/1997/026440A1 |
A core sampler, particularly for use in oil prospecting, including a flexible movable ring (5), provided in particular at the front end (2) of the core sampler, which end is connected to a coring bit (3), for grasping a core sample (C) t...
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WO/1997/026441A1 |
A fluid lubricant for a core sample (3) collected during soil coring, particularly in the oil industry, is disclosed. The fluid lubricant (2) comprises a liquid component for protecting the core sample and a solid component consisting of...
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WO/1997/026438A1 |
A core sampler, particularly for oil prospecting, including a coring bit (2), an outer barrel (3) for rotating the coring bit (2), and an inner barrel (5) for receiving the core sample (7) in its internal space (8) during coring, the inn...
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WO/1997/008935A2 |
The invention relates to a method for taking a soil sample. A flexible cover is fitted around a cutting head of a sampling device before the sampling device is introduced into a borehole. When a sample is being taken, the flexible cover ...
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WO/1997/002405A1 |
The invention relates to a drilling apparatus (10) for soil sampling and to support and collection apparatuses for use with the drilling apparatus (10). The drilling apparatus (10) comprises a rotary drive assembly (13) with a cutter ass...
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WO/1996/038394A1 |
A curable gypsum-based composition for the production of cured gypsum matrix, the composition comprising a two-component composition comprising: (a) a first component comprising calcined gypsum suspended in water, and a set retarding sub...
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WO/1996/028639A1 |
A sampling device (302) includes a barrel (304) having a downhole end, an exterior surface (308), an interior surface (306) defining a hollow interior (310), and an open end at the downhole end of the hollow interior (310). A fluid entra...
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WO/1996/004459A1 |
A common problem with reverse circulation downhole hammers is retention of the sample tube that extends through the actual hammer component. There is a tendency for the sample tube to become loose in its mounting, and the resulting movem...
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WO/1996/001360A1 |
A soil sampler (10) for taking soil samples at multiple locations around a vehicle is disclosed. The soil sampler (10) has a probe (82) for withdrawing soil samples from the ground. The probe (82) is suspended on a support structure or b...
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WO/1995/035428A1 |
A fluid-coupled latch (106) for a soil sampling system (100) (including a sample barrel (126) and a drive casing (118)) includes an inflatable gland (128) affixed to the sample barrel (126). When inflated, the latch engages the inner wal...
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WO/1995/031707A1 |
A method for obtaining a soil sample (11) for laboratory analysis of VOC content includes providing a cartridge (113) having an open mouth portion (17) and a proximal end (115). The cartridge (113) is urged into soil to extract a sample ...
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WO/1995/021988A1 |
A core barrel system consists of an outer core barrel (2), an inner core barrel (3) formed from a number of tubular members (4a, 4b) coupled together by female nuts (7), support formations (13) which extend into the inner core barrel (3)...
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WO/1995/020309A1 |
There is described a handheld and actuated tool (10) for making small diameter holes in the earth, comprising an elongated earth penetrating tubular member (5) for cutting a core of earth, and a handle portion connected to the tubular me...
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WO/1995/018289A1 |
Proposed is a drilling method in which comtaminants present in the soil are not forced down to greater depths during drilling operations. This is achieved by virture of the fact that a double-wall casing is inserted into the soil in fron...
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WO/1995/009962A1 |
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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WO/1995/008694A1 |
A sampling device (2) includes a barrel (4) having a downhole end (16), an exterior surface (8), an interior surface (10) defining a hollow interior (12), and an open end (20) at the downhole end (16) of the hollow interior (12). A fluid...
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WO/1995/006798A1 |
Coring apparatus (10) and method are disclosed which provide for hydraulic latching of an inner core barrel (26) within an outer core barrel (12). The apparatus includes a valve face (48) disposed around the inner core barrel (26) and va...
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WO/1995/004870A1 |
An automatic soil sampler (10) removes soil samples (65) at known locations and transfers the samples to a packaging station (23) where the samples are packaged and identified. The packages (87) are left in a strip and moved to a contain...
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WO/1995/004450A1 |
An automatic soil sampler (10) removes soil samples (65) at known locations and transfers the samples to a packaging station (23) where the samples are packaged and identified. The packages (87) are left in a strip and moved to an analys...
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WO/1994/029567A1 |
A retractable drill bit system (10) comprises a drive sub (18) which is adapted for connection to a lower end of a drill (12), a tool (20) for installing and retracting drill bit segments (22) from the drive sub (18); and an insert (24) ...
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WO/1994/028281A1 |
A core pipe (3) for coring or core drilling, especially with sampling in connection with oil wells, wherein the core pipe (3) is rotatively suspended from a rotary drill pipe (1) operating a bit (2), and further provided with internal, t...
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WO/1994/027687A1 |
A device for making holes in the ground includes a tubular cutter (1) having an open first end (2) for insertion into the ground, and an opposite, second end from which a guide means (4) extends. A percussion weight (5) is guided for mov...
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WO/1994/023181A1 |
A hydraulic, especially a hydrostatic impact device, for example for marine sampling or pile driving, comprises a low pressure reservoir (33) which is completely or partially filled with air or other gas under, for example, atmospheric p...
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WO/1994/017386A1 |
A device and a method for sampling a material such as a liquid, a viscous fluid or a crumbly solid. Said device includes a hollow sampling cylinder (10) defining an open cavity operably connected to a vent assembly (34) and comprising in...
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WO/1994/001653A1 |
A method for taking a core sample from the ground comprising providing a tubular liner (16) within a tubular casing (3) which has an annular cutting shoe (6) at one end; using percussion to force the lined casing down into the ground wit...
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WO/1994/000670A1 |
A survey process for cable core borings in which an inner core tube (3) with an autarcally operating measuring probe (24) releasably secured via a core retaining sleeve adapter (20) is fed into a core boring rod (6) and blocked in an out...
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WO/1993/024708A1 |
The invention relates to an apparatus for drilling and maintaining holes in golf courses. It is built onto a mini-tractor with the drilling unit itself suspended in a hydraulic hoist for moving up and down between a raised and a lowered ...
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WO/1993/005271A1 |
According to a process for measuring cable drilled bores, an autonomously operating measurement probe (1) is introduced into the boring rods (3) with the drilling fluid and is stopped at the drill bit (5) by a core barrel coupling (6), t...
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WO/1992/019836A1 |
A machine for performing work at great depths utilizes the energy which is released when surrounding water masses at great hydrostatic pressure are admitted into a low pressure reservoir via a hydraulic motor (2). The machine uses a buil...
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WO/1992/002707A2 |
There is described core sampling apparatus including means for sensing pressure changes within the apparatus to alert when a core sample has become jammed within the device. Sample-taking adjustment means is also provided in the device.
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WO/1991/019075A2 |
A double-tube core drill wherein the inner tube (2) is connected to the outer tube (1) by a multi-element needle and/or ball bearing (11), allows for the inner tube (2) to be made rigid and prevents it from rotating along with the outer ...
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WO/1990/012193A1 |
Disclosed is a drilling device in which power is transmitted from a hollow cylindrical drive element to a drill pipe with a cutter head. The drive element (3) is rotatably mounted in a housing (41) which has a connector element (42) for ...
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WO/1990/009508A1 |
A device for taking a soil sample can be used both in cooperation with a handling device and as a hand boring rod. The device has a probe (1) with a cylindrical tubular casing (9) the head end of which has a handling device (28) that clo...
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WO/1990/008243A1 |
Manhole cutter (10) for cutting a circular groove of a finite depth about a manhole, such as in a street, and removing the manhole from the street. The manhole cutter is suspended from a front-end loader or truck-mounted boom and rotated...
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WO/1990/005237A1 |
Coring apparatus (1) for the recovery of a solid bar of rock formation being drilled comprises concentric inner and outer barrels (2, 3) arranged so that the outer barrel (3) can be rotatably driven relative to the inner barrel (2). The ...
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WO/1990/000666A1 |
A device for steering the direction of a rock drill with an outer pipe (34) and a core barrel (37) which is led through an eccentric bearing (36) in the outer pipe to incline the direction of a drilling bit (35). The outer pipe is connec...
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WO/1989/012220A1 |
The invention relates to a sampler (1), particularly for picking up samples from the sediment and/or the aqueous layer near the bottom of a watercourse. The open-ended, tubular sampling container (8) is mounted as an extension of a blade...
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WO/1988/009863A1 |
A device for geotechnical sampling. A core barrel (14) is intended to be applied to the lower end of a drill pipe (10) which is driven down into the ground with the aid of percussion and/or rotary drilling. The core barrel (14) is connec...
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WO/1988/005491A1 |
In a fusion-drilling process for tunnel, deep well and exploration boring, only an opening defining the outer profile of the tunnel or bore hole is obtained by melting. The bore core surrounded by this opening at first is left in place, ...
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WO/1986/007398A1 |
An arrangement (1) for a soil sampler which exhibits means for freezing the soil sample in question. The arrangement is simple with regard both to its function and to the construction of same. A sampling component (2) capable of being in...
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WO/1986/002124A1 |
A permanent signal for controlling the locking of a cable-type sampling apparatus by providing an eclipsable lock comprised of a slide ring (32) which is outwardly slidable along a cylindrical body (33) and is provided with a bolt (34) p...
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WO/1985/004212A1 |
Apparatus for drilling a bore hole comprises a hammer (3) and a series of dual wall drill tubes (2). The hammer (3) is supplied with compressed air and is for use in applying successive percussive blows to a percussive drill cutting bit ...
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WO/1985/003545A1 |
Method for drilling with a core drill with reversed flushing. As the core (25) formed by the drill moves inwardly into the drill tube (5), the inner surface (24) ahead of the core is cleaned from debris (55) by a cleaning device (6), whi...
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