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WO/2014/200963A1 |
Devices and methods for obtaining core samples from a formation that surrounds a cased wellbore. A coring tool includes a casing cutter for cutting an opening in the casing and a coring device for obtaining a core sample from the formation.
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WO/2014/194353A1 |
A valve system for an inner tube assembly is described. The inner tube assembly is arranged to be used in a drilling system to retrieve a core sample, and is arranged to be insertable into a drill string of the drilling system at a first...
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WO/2014/190116A1 |
A method for removing a core sample from a borehole includes: taking the core sample within the borehole with a sampling tool; generating a model of the core sample, the model based on data representing properties of the core sample; def...
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WO/2014/172354A1 |
Described herein is an inner tube for a core barrel which has a structure adapted to retain lubricant for lubricating a sampled core. In one embodiment, 5 the internal surface of the inner tube includes a plurality of alveoli in which lu...
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WO/2014/165894A1 |
An improved core drilling system including a drill string, an inner core barrel assembly, an outer core barrel assembly connected to a drill means at a lower end which by rotation drills the core sample for removal from the drilling hole...
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WO/2014/142124A1 |
Provided is a core collecting device that keeps a ball valve in a closed state after excavating a core and thereby maintains internal pressure. A core collecting device that collects cores comprises: a tube; a container that is disposed ...
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WO/2014/107245A1 |
A shear component for releasablv securing a first component to a second component, the shear component comprising a body having a first end, a second end, an outer wall surface, an inner wall surface defining a cavity, a shear plane, and...
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WO/2014/089618A1 |
A rotation activated orientation system (10) for a ground drill is operated by action of magnetic fields. The system (10) incorporates a magnetically operated orientator (12) having a free state where the orientator (12) provides a subst...
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WO/2014/072938A1 |
A retrievable core sampling assembly for latching to or relative to a rotatable tubular housing 1 of a core sampling apparatus to allow the capture and retrieval of a core 19 from a subterranean formation, the assembly comprising or incl...
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WO/2014/053012A1 |
Disclosed is a core sample orientation system for determining the relative orientation of a core sample with respect to its surrounding prior to removal from a bore hole. The system comprising an alignment device and a display device, th...
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WO/2014/047680A1 |
A core lifter assembly (12) comprises a combination of a core lifter ring (10) and a core lifter case (14). The ring (10) has an ax!a!!y extending portion (16) of an outer generally frusto-conical configuration having an included taper a...
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WO/2014/043751A1 |
A multifunction orientation system comprising a primary measuring means for measuring a drilling characteristic, at least one secondary measuring means for taking a set of orientation related measurements and a user interface means for r...
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WO/2014/018737A1 |
A coring assembly (10) comprises a shoe (18) and a tubular body (20) having a first end coupled to the shoe. An inner sleeve (22) is releasably coupled to the shoe and has a first end (40) disposed within the shoe and a second end (42) t...
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WO/2014/012781A2 |
A technology is described of a system capable of altering between extracting a core sample from, or drilling of, a downhole subterrain formation. In coring mode the core is encapsulated downhole at in-situ conditions with a material capa...
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WO/2013/162841A2 |
A core holder comprises a plurality of fluid flow lines, a housing, a core sleeve disposed within the housing, an end cap coupled to a first end of the core sleeve and a first end of the housing, and an injector assembly disposed within ...
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WO/2013/152457A1 |
Disclosed is a sidewall coring while drilling tool. The tool comprises an outer barrel set (34), a fishing mechanism (35), a drilling and sealing mechanism (36), a propulsion mechanism (37) and a coring mechanism (38), wherein the outer ...
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WO/2013/151435A2 |
Drill device for drilling in a soil, comprising a soil drill and a drive for a rotating and/or vibrating drive of the soil drill, wherein the soil drill is provided with an elongated hollow drill pipe having a drill head at its outer end...
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WO/2013/142899A1 |
A core tray comprising a body including at least one channel arranged to hold at least one core sample, wherein the body includes at least one set of handles arranged to, in use, allow a user to grip the core tray to assist in moving the...
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WO/2013/126955A1 |
A method and system of validating orientation of a core obtained by drilling the core from a subsurface body of material, the method including: a) determining that vibration from drilling is below a nominated level, b) recording data rel...
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WO/2013/119724A2 |
A coring apparatus may be integrated with fluid analysis capabilities for in situ analysis of core samples from a subterranean formation. An instrumented coring apparatus may include an inner core barrel; an outer core barrel; a coring b...
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WO/2013/110160A1 |
A valve assembly for use in an inner tube member of a core barrel head assembly positionable within a drill string of a drilling apparatus. The valve assembly works using two separate surfaces A and B and a biasing element with a force F...
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WO/2013/110161A1 |
A core barrel head assembly positionable within a drill string of a drilling apparatus. The core barrel head assembly comprises upper latch a lower latch bodies. The head assembly further comprises a mid latch body separating the upper l...
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WO/2013/110159A1 |
A valve assembly for use in an inner tube member of a core barrel head assembly positionable within a drill string of a drilling apparatus. The piston member of the valve assembly is located between a fluid pressure communication port an...
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WO/2013/110197A1 |
A valve assembly for use in an inner tube member of a core barrel head assembly positionable within a drill string of a drilling apparatus. The valve assembly works using two separate surfaces and a biasing element with a force Fs. When ...
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WO/2013/110162A1 |
A core barrel head assembly positionable within a drill string of a drilling apparatus. The head assembly includes two sets of ports. The first set of ports is for fluid flow, the second set is for fluid pressure. A piston is actuated vi...
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WO/2013/106885A1 |
An adaptor (64,66) has attachment means to releasably attach a core orientation instrument (60) or survey probe to a drill string component and/or drill string, preferably by one or more screw threads (70, 72, 76, 78), retaining screws, ...
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WO/2013/088414A1 |
The method comprises placing a sample of rock on a mold surface (90), forming a solid plug (134) containing the rock sample embedded in a hardened resin matrix. The method further comprises pouring a UV polymerizable liquid resin on the ...
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WO/2013/040641A1 |
An apparatus for use in a downhole survey in conjunction with core sampling comprises a body adapted to receive a downhole surveying instrument, whereby the downhole surveying instrument can be conveyed along a borehole with the apparatu...
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WO/2013/039962A1 |
A coring tool having a coring mechanism for cutting cores from a borehole sidewall. The coring mechanism comprises a motor having a coring bit to cut 1.5 inch diameter, 2.5 inch long cores. Support plates fixed to the housing comprise gu...
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WO/2013/028074A1 |
Thrust bearing assembly (40) for a wireline-operated directional core barrel drill, especially for rock drilling of curved holes with a predetermined path, where all sliding or rolling surfaces of the thrust bearing assembly (40) are mad...
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WO/2013/028075A1 |
Eccentric bushing assembly (40) for a wireline-operated directional core barrel drill, especially for rock drilling of curved holes with a predetermined path. The eccentric bushing assembly (40) is an adjustable eccentric bushing assembl...
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WO/2013/023299A1 |
Techniques for sampling a subsurface reservoir include lowering a downhole logging tool comprising one or more samplers, a cleaner system, and a sample probe bit into a borehole until at least one sampler is positioned correctly in a sub...
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WO/2012/177637A1 |
Methods and systems for enhanced capture and recovery of core samples from unconsolidated or friable formations are provided using drilling fluids that permit increased overpressures to preserve the ability to cut core samples and to str...
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WO/2012/170299A2 |
A method of abandoning a borehole includes, running a tool into the borehole, cutting a casing with a first portion of the tool, reaming the borehole in an area where the casing has been cut with a second portion of the tool, disconnecti...
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WO/2012/162746A1 |
A coring barrel having a tube with a cylindrical wall, a drive socket adapted to receive an end of a drive bar located at a first end of the tube, cutting teeth located at a second end of the tube, a liquid reservoir defined within the t...
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WO/2012/140222A1 |
The invention relates to a method for carrying out nondestructive drilling with a high diameter D1 in a drilling area, including the steps of: a) carrying out a first guide drilling with a diameter D2 smaller than D1; b) making a cylindr...
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WO/2012/125454A2 |
A wireline or drill pipe retrievable coring tool with an inner barrel to receive a core, a bottom coring tool valve operable to seal off a bottom of the inner barrel and at least one pressure canister operable to receive fluid from the c...
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WO/2012/116393A1 |
A rotation actuated core orientation system (10) for a ground drill comprises an orientator (14) and rotation sensitive actuator (16). The actuator (16) is a dispersed system comprising two major components or subsystems namely a centrif...
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WO/2012/088578A1 |
The utility model relates to a plastic-box arrangement for packaging core samples, for use in geology. The plastic-box arrangement comprises a planar base (1), smooth external walls (2) and partition walls (3) that define the compartment...
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WO/2012/069036A1 |
The invention relates to a method for measuring drilled cores, comprising the following steps: arranging individual drilled core sections against a reference scale or a reference frame having known dimensions, creating images of the indi...
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WO/2012/065970A2 |
The present invention regards a method for performing core sampling during drilling of wells, comprising the steps of providing a dual bore drill pipe with drill bit in the end in the well bore, providing means to introduce a drill liqui...
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WO/2012/057910A2 |
Methods for heating a material within a wellbore using nano-particles such as carbon nano-tubes. The material may be a flowable material such as cement, drilling mud, an acidizing fluid, or other material. Generally the methods comprise ...
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WO/2012/027817A1 |
A core barrel head assembly positionable within a drill string of a drilling apparatus. The core barrel head assembly comprises an upper latch body having a latch assembly for engageably latching the drill string, and a reduced diametric...
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WO/2012/012839A1 |
A core sample orientation system is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been recovered. A hermetically sealed core sample orientation data gatheri...
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WO/2012/012006A1 |
The present disclosure is related to an apparatus for taking a sample in a wellbore during drilling operations. The apparatus may include a drill bit configured to form a core and at least one retractable cutter internal to the drill bit...
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WO/2012/000077A1 |
A drilling system including a drill head. The drill head defines a drill head bore and includes a drill head bore closure device. An inner core barrel and an inner core barrel retrieval device may be passed through the interior of the dr...
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WO/2011/161415A2 |
A method of drilling a bore at a subsea location is provided, the method comprising providing a remotely operated drilling assembly at a subsurface location; providing a conduit extending from the surface of the water to the remotely ope...
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WO/2011/153149A2 |
A core barrel restraint adapted to prevent inadvertent dropping of a core barrel assembly during retrieval of a core sample can include a cup adapted to fit over an overshot and a brace adapted to be coupled to a core barrel assembly. A ...
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WO/2011/130148A2 |
A coring apparatus is provided, which apparatus, in one exemplary embodiment, includes a rotatable member coupled to a drill bit configured to drill a core from a formation, a substantially non-rotatable member in the rotatable member co...
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WO/2011/129760A1 |
A device (1) for handling drill string components (28) for a drill rig (13) includes a slide (3) which is arranged displaceable on a longitudinal guide (2), a grip unit (7) being swingable between a first position for receiving and deliv...
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