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WO/2011/127374A1 |
A method for detecting the presence of an acid gas in a formation fluid from a subterranean formation comprises (a) lowering a coring assembly (100) into a wellbore (12). The coring assembly including an outer core barrel (110) and an in...
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WO/2011/102785A1 |
This invention concerns a method for sampling bedrock 1 comprising transport drilling A that is carried out through the use of a drill string 2 and a first drill arrangement 3 in order to reach a region X inside the rock 1 and comprising...
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WO/2011/090480A1 |
An apparatus for measuring a resistivity of a formation comprising an instrumented bit assembly coupled to a bottom end of the apparatus. At least one first electromagnetic wave antenna transmits an electromagnetic wave signal into the f...
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WO/2011/084589A2 |
Implementations of the present invention include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch m...
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WO/2011/082563A1 |
A storage and transportation box for core includes a box body (l), a box cover (2) and a storage groove (3) for core in the box body (l); the box cover (2) is rotationally connected with the box body (l). The box body (1), the box cover ...
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WO/2011/082870A1 |
A methane content of a bottom sample comprising methane hydrate crystals is determined by: - taking a core sample (5) from a bottom sediment (3) in a deepwater area; - storing the core sample (5) in a storage chamber (4); - lifting the s...
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WO/2011/084587A2 |
Implementations of the present invention include a core barrel assembly including external fluid pathways extending generally axially long the outer surface of the core barrel assembly. The one or more external fluid pathways can allow f...
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WO/2011/072342A1 |
A method and device for extracting sample cores from seabeds is disclosed. The method entails lowering a seabed coring device, comprising a core sampler and a cage, to a desired position above the seabed; releasing the core sampler from ...
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WO/2011/056809A2 |
A core lifter may be used in a drilling system. An exterior surface of the core lifter may include a plurality of longitudinally-oriented recesses. The core lifter may include a raised contact feature that may extend inwardly away from a...
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WO/2011/056077A1 |
Core barrel head (20) for connection to a core barrel for collecting core samples, and for connection to a latch assembly (14), to mount a drill assembly in a bore hole, with a sleeve (27) for carrying the inner tube. A controllable lock...
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WO/2011/044314A2 |
Implementations of the present invention include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch m...
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WO/2011/044427A2 |
Methods and apparatus for positioning a downhole tool in a wellbore extending into a subterranean formation, commencing coring operations by rotating a coring bit of the downhole tool and extending the rotating coring bit into a sidewall...
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WO/2011/020141A1 |
A system (10) for monitoring coring operations including a core sample marker (24) to rest in use on the top of a drilled core sample (14) within a core barrel (16). A cable (26) is connected at a first thereof to the core sample marker ...
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WO/2011/016642A2 |
The present invention provides an oil-pressure type fixed piston sampler for sampling soil for site investigation. The oil-pressure type fixed piston sampler comprises a sampling unit (12) and an oil-pressure controller (14). Here, when ...
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WO/2011/011837A1 |
The invention relates to an inner tube of a core barrel (1), including an inner tubular wall (2) intended for receiving a core and provided with at least one open slot (8, 9, 10), an outer tubular wall (3) in which the inner tubular wall...
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WO/2011/011839A1 |
Disclosed is a core drill comprising: an external pipe; a coring bit to be rotated by rotation of the external pipe to drill a coring hole and form a core having a core diameter; and an internal coring pipe (1), mounted within the extern...
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WO/2011/003990A2 |
There is disclosed herein drilling apparatus, in particular for use in the field of oil prospecting, comprising: a first tubular member (1, 2, 3); a second tubular member (6, 7, 8, 9) mounted at least partly within the first tubular memb...
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WO/2010/151490A1 |
Core samples may be easily, quickly, and safely split using a fluid cutter, such as a water jet. Cutting may take place upon exit of the sample from the drill tube, or core samples may be placed in core carriers for cutting. Core samples...
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WO/2010/115284A1 |
The invention relates to a locking device for a drilling device including a locking body that is mountable in an outer tube, an unlocking tube that is slidingly mountable about the locking body, two catches attached to the locking body a...
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WO/2010/114462A1 |
The invention concerns a method for the collection of sample bores and soil samples, and a vehicle and a vehicle combination for the execution of the method. According to the method according to the invention, the collection of soil samp...
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WO/2010/096861A1 |
A centralising core orientation apparatus (10) comprises a core orientation system (12) with a centralising system (14). The centralising system (14) comprises two centralising tools (14ad) and (14au) one on either side of the core orien...
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WO/2010/096860A1 |
A head assembly (10) comprises a spear head assembly (12) and a latching system (100) which are coupled together. The spearhead assembly (12) comprises a spear point (16) having a proximal end (18) pivotally coupled about a pivot axis (2...
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WO/2010/094060A1 |
A core sample orientation system (10) comprising a first portion (11) and a second portion (12). The first portion (11) comprises a downhole unit adapted to be connected to a core tube of a core drill, and the second portion (12) compris...
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WO/2010/091471A1 |
A housing (15) for connection to a downhole assembly (17), the housing comprising first and second sections (31, 32), the first section (31) being adapted for connection to a portion of the downhole assembly, the second section (32) defi...
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WO/2010/050840A1 |
A system for coring an underground formation surrounding a borehole, comprising: a tool body that can be positioned in the borehole near the formation to be cored, the tool body including a motor; a rotary drive head connected to the mot...
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WO/2010/046757A1 |
A self-propelled drilling machine (1) having a platform (2), and a supporting mast (5) fitted to the platform (2) to move between a fully lowered position, in which the mast (5) rests on the platform (2), and a work position in which the...
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WO/2010/045691A1 |
A flow diverter assembly (10) comprising a sealing member (13) moveable relative to an aperture in communication with an inner barrel (62) of a core barrel assembly. The sealing member (13) is moveable between a first position in which t...
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WO/2009/157837A1 |
A method in core drilling, wherein a tubular drill bit (8) being arranged at the end of a tubular drill string (6) is driven under rotation against a material intended for drilling, and wherein for the purpose of core retrieving, a tool ...
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WO/2009/142873A1 |
Methods and apparatus for acquiring mud gas logging data, comparing the mud gas logging data to second data associated with a sidewall fluid sample measurement, and adjusting calibration data associated with a mud gas logging tool based ...
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WO/2009/140597A2 |
A jointed spearhead assembly can include a base portion that is adapted to be connected to a down-hole object and a spearhead portion having a first end and a second. The second end includes a follower tab with a non-convex first followe...
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WO/2009/140400A2 |
A drill bit for core sampling includes a body having a central axis and first end having a tapered outer surface and a radius transverse to the central axis, and an insert having a cutting surface on the first end oriented at an axial an...
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WO/2009/117347A1 |
A latch head assembly for a core receiving apparatus including a core tube assembly and a retrieving head is provided. The latch head assembly includes a support, a first coupling for releasably engaging the retrieving device coupled to ...
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WO/2009/102578A2 |
Method and system for monitoring rotational time of a rotatable equipment. At least some of the illustrative embodiments are methods comprising powering a sensor coupled to a rotatable equipment, the powering by a self-contained electron...
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WO/2009/083805A2 |
A core sample acquisition device includes a core receiving barrel configured to couple to a drill string proximate a core drilling bit. The device includes a sensor for determining a longitudinal extent of a core sample urged into the re...
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WO/2009/042781A2 |
A method of estimating a property of interest downhole according to one aspect of the disclosure may include continuously receiving a core drilled from a formation into an open end of a chamber while removing the core distal from the ope...
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WO/2009/042785A2 |
A method for estimating a property downhole is provided, which, in one aspect, may include receiving a core at a receiving end of a downhole tool while removing a portion of the received core distal from the receiving end of the tool, ob...
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WO/2009/042774A2 |
An apparatus made according to one embodiment may include a chamber configured to receive a core at a receiving end of the chamber and a cutting device configured to cut the core at a location distal from the receiving end of the core ch...
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WO/2008/140883A2 |
A method for drilling formations below the bottom of a body of water includes disposing a drilling system on the bottom of the body of water. The formations are drilled by rotating a first drill rod having a first core barrel latched the...
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WO/2008/132754A1 |
The present invention provides an apparatus having mechanical control for sectioning the aqueous sediments in the core liners at the desired intervals up to millimeter level. The aqueous sediments can be from either near shore or deep-se...
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WO/2008/131772A2 |
The present invention relates to a drilling system (1) for drilling out a sample of a formation, a well, or the like downhole, comprising a drilling head (2) having an at least partly hollow cylindrical body (3) with a circumferential ri...
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WO/2008/113127A1 |
A core orientation tool (10) for providing an indication of orientation of a core sample (112) comprises an electronic orientation device (20), which upon receipt of a trigger signal, logs one or more indications of orientation of the to...
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WO/2008/109102A2 |
A portable apparatus and method provide on-site permeability measurements of a core sample extracted from a subterranean reservoir. The portable apparatus is easily and conveniently transported to well locations for use on-site, thereby ...
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WO/2008/089579A1 |
A coring method and apparatus is provided for extracting a core sample from a subterranean formation and/or drilling a hydrocarbon well, the coring apparatus having: a pneumatic reciprocating hammer having a first end for operatively con...
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WO/2008/085616A2 |
Fibers for diamond-impregnated cutting tools and their associated methods for manufacture and use are described. The cutting tools contain a diamond-impregnated cutting portion that contains fibers made from carbon, glass, ceramic, polym...
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WO/2008/082634A1 |
Conducting multiple types of evaluations on a core sample may be performed with a conveyor belt and a multi-detector carriage. The multiple types of evaluations allow core samples from historically problematic formation materials, such a...
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WO/2008/076130A1 |
Disclosed herein are electromagnetic resistivity logging systems and methods that employ an antenna configuration having at most two transmitter or receiver antenna orientations that rotate relative to the borehole. The measurements made...
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WO2007136568B1 |
A core drill assembly with replaceable cutting fluid nozzles permitting effective total flow area adjustment (TFA), substantial optimization of hydraulic force at the cutting face to improve rate of penetration (ROP) and core quality. At...
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WO/2008/034174A1 |
A core barrel capacity gauge (30) for use on a core barrel assembly (10) having a barrel (16) for receiving a core sample. The core barrel capacity gauge comprises a core sample marker (32) located within the barrel (16) such that the co...
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WO2008008386A9 |
A retrievable tool for steering through an earth formation includes a first tool assembly (406
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WO/2008/028197A1 |
A drill core tray (100) comprises a sheet metal base plate (104) shaped to form a number of elongated recesses (114). The recesses (114) are separated by dividers (112) comprising inclined lower sides (120) leading into upstanding side w...
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