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WO/2019/134026A1 |
An elongate battery pack for use in MWD drilling apparatus having torsion damping means at one or both ends thereof to reduce or eliminate "high g" rotational accelerations and decelerations being transmitted from the drill string to the...
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WO/2019/136328A1 |
Gravel packing compositions or fluids and/or methods pack a wellbore in a subterranean formation, wherein the wellbore comprising a cased section and an uncased section. The gravel packing compositions or fluids include gravel and a carr...
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WO/2019/135682A1 |
A tunnel-boring machine (3) comprising a frame (6), a rotating boring head (4) with rolling disc cutters (5) supported at a front end of a first frame portion (6a), a second, polygonal frame portion (6b) extending rearwards from the firs...
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WO/2019/136280A2 |
A stick-slip vibration mitigation system and a method of using the system are provided. The system includes a sensor, a processor, a non-transitory storage medium, and a controller. The system is operable to be used with a drill-string i...
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WO/2019/135981A1 |
A fiber optic cable assembly includes an elongate housing, a plurality of fiber optic cables placed inside the housing and extending longitudinally, and acoustic isolating material placed inside the housing and extending longitudinally. ...
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WO/2019/134941A1 |
The present invention relates to a system and method for modelling flow conditions in a well system, the well system being represented by a number of branches (1,1a) conducting hydrocarbons from at least one branch entry point (3,3a) to ...
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WO/2019/135804A1 |
A detonator block (240) for housing a detonator (242) includes a body (241) configured to host the detonator (242), the body (241) having a first end (244A) that is configured to be attached to a gun assembly element (210), and the body ...
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WO/2019/135814A1 |
A fluid flow control device includes a rotatable component for rotating about an axis in response to fluid flow from an inlet port of the fluid flow control device. A float component is positioned within the rotatable component and conne...
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WO/2019/135752A1 |
A nuclear magnetic resonance (NMR) tool includes an antenna assembly and a magnet assembly. The NMR tool also includes a motional sensor comprising at least one radio frequency (RF) antenna disposed about a tool axis and about at least a...
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WO/2019/135683A1 |
A guide device for a tool string to guide the tool string down a wellbore, the guide device comprising: a coupling to connect the guide device to an end of a tool string, a mandrel and a tip at a leading end of the mandrel, a centralisin...
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WO/2019/135775A1 |
A system and method to control fluid flow to downhole tools and equipment, and to allow formation testing and sampling operations is disclosed. The system includes an actuator assembly that may be mechanically or electrically activated t...
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WO/2019/081604A9 |
A releasable lock (11) for a pipe cradle is disclosed. The releasable lock (11) comprises an elongate arm (1), pivotally secured at a first end to a pivot end mounted on a cradle frame (12). At a second end the releasable lock comprises ...
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WO/2019/134917A1 |
An end connection assembly (200) for pull-in and coupling of a flexible tubular pipe to an inboard hub of a subsea structure using a tie-in tool, which flexible tubular pipe comprises a plurality of superposed flexible layers (210, 214, ...
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WO/2019/136329A1 |
A well-logging system includes a downhole tool coupled to a cable. The downhole tool may measure physical parameters of a wellbore via a first plurality of sensors. The well-logging system may include wellbore equipment including a winch...
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WO/2019/134929A1 |
This disclosure relates to a percussive drill bit comprising PCD studs and a hard facing material that is strategically located to minimise stud pop outs and the amount of hard facing material used.
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WO/2019/134220A1 |
A gas production method and system for natural gas hydrate exploitation. The gas production method uses the gas lift effect of methane gas released by decomposition of a natural gas hydrate to transport gas hydrate from the bottom of a p...
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WO/2019/135865A1 |
A frac plug that is energized by a ball member, the frac plug comprising an upper mandrel having a tapered outer surface, a seal member coupled to the upper mandrel, and a lower mandrel coupled to the upper mandrel. A button ring having ...
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WO/2019/134930A1 |
This disclosure relates to a percussive drill bit comprising PCD studs and a drill bit body protector to limit erosion of the drill bit body near the PCD studs. The drill bit body protector may take various forms such as a continuous har...
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WO/2019/135944A1 |
A method includes obtaining a sample of a fluid from a subterranean zone while the fluid is being extracted from the zone. A chemical composition of the sample is measured. A temperature and a pressure of the subterranean zone are measur...
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WO/2019/134956A1 |
This boring assembly (10) extends along a main axis (A – A') and comprises: • - a boring head (18) comprising: • + at least one first nozzle (20); • + at least one second nozzle (22), the or each second nozzle being different fro...
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WO/2019/136061A1 |
Cutting elements for earth-boring tools may include a substrate and a poly crystalline, superhard material secured to an end of the substrate. A first, greatest diameter of the poly crystalline, superhard material may be greater than a s...
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WO/2019/135762A1 |
A shaped charge for use in a well perforating tool includes at least one explosive component fabricated by an additive manufacturing process such as three-dimensional printing. The additive manufacturing process may facilitate the produc...
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WO/2019/129718A1 |
A polycrystalline diamond construction has a first region having a first grade of PCD material and a second region having a second grade of PCD material, the first region being arranged to divide the second region into a plurality of seg...
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WO/2019/133095A1 |
A mine roof support comprises two or more frusto-conical, tubular sections, the sections each flared outwardly from an upper end to a lower end thereof, a skirt portion of a section being received and secured within a neck portion of a s...
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WO/2019/133003A1 |
A drilling system for drilling a wellbore that includes a drill string rotatable in a first direction. The system also includes a bottom hole assembly (BHA) that includes: a drill bit, a housing with a bore, a first fluid-driven motor in...
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WO/2019/129715A1 |
A polycrystalline super hard construction has a body of polycrystalline diamond material with a working surface, a first region substantially free of a solvent/catalysing material extending a depth from the working surface into the body ...
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WO/2019/133189A1 |
A downhole fluid flow control system includes a fluid control module having an upstream side, a downstream side and a main fluid pathway in parallel with a secondary fluid pathway each extending between the upstream and downstream sides....
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WO/2019/129862A1 |
The present disclosure relates to a system having an inner structure, wherein the inner structure comprises at least one inner tube made of stainless steel and at least one sensor device with at least one sensor to measure at least one c...
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WO/2019/133150A1 |
A downhole rotating machine includes a stator having stator windings and corresponding magnetic flux guides and a rotor having a plurality of magnets configured to cooperate with the stator windings and the corresponding magnetic flux gu...
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WO/2019/132979A1 |
In-well steam monitoring for SAGD operations using permanent fiber optic sensors installed behind the casing of an injector or producer well provides continuous monitoring of downhole steam injection. Using in-well sensor measurements, t...
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WO/2019/132977A1 |
An electromagnetic (EM) telemetry system of a wellbore drilling and production environment includes at least one downhole sensor. The system also includes a downhole transceiver including an encoded signal transmitter. The encoded signal...
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WO/2019/133593A1 |
Apparatus and method for in-situ stabilization of unconsolidated sediment in core samples are disclosed. The core sampling apparatus includes a corer having an inner wall, an outer wall, and a plurality of impregnation tubes disposed bet...
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WO/2019/133290A1 |
A method for monitoring and optimizing stimulation operations in a reservoir. In particular, the method utilizes a downhole telemetry system, such as a network of sensors and downhole wireless communication nodes, to monitor various stim...
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WO/2019/131952A1 |
The present invention addresses the problem of providing a sealing material for underground treatments which has excellent swelling performance and is effective in inhibiting mud leakage, etc. and which has improved applicability to dril...
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WO/2019/133974A2 |
A robotic device and mobility module for navigating through a passageway whose diameter may vary comprises a central support member, a first casing coupled to the elongate support member via a first expandable and collapsible linkage, th...
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WO/2019/133031A1 |
A subsurface safety valve system for a wellbore is described. The system can include a tubular housing disposed within the wellbore having a cavity running in a longitudinal direction therethrough. The system can also include an electrom...
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WO/2019/133033A1 |
A drill string steering system includes a flow manifold and a rotary valve. An actuation flow channel and a backflow channel are rotatable with respect to piston flow channels of the flow manifold. The actuation flow channel is rotatable...
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WO/2019/130015A1 |
A whipstock having a longitudinal axis, a first end and a second end, and a tapering deflection section extending at least part of the way between the first end and the second end, wherein: the deflection section has a rear face; the def...
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WO/2019/128886A1 |
A multi-functional inclinometer and an inclinometer-based method for determining the relative position of a casing in an adjacent well, relating to the field of oil drilling-specialized inclinometer designs and wellbore anti-collision te...
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WO/2019/128920A1 |
Disclosed is a new split-type shaft boring machine. Said boring machine comprises a ground device (1), a multi-layer hanging scaffold (2) and a main boring machine (3), the main boring machine (3) comprises a cutterhead (301), a stabiliz...
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WO/2019/133738A1 |
Methods and apparatus for evaluating a volume of an earth formation carried out using complex dielectric measurements. Methods include making measurements of complex permittivity at a plurality of frequencies; identifying an optimal freq...
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WO/2019/132769A1 |
A downhole tool comprises a housing and a seat movably disposed in the housing. The housing has a bore formed therein and flow ports in fluid communication with the bore. The seat has a main body, a protective layer covering a surface of...
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WO/2019/132909A1 |
A wellbore trajectory survey, having an ordered plurality of survey points, is acquired. Each of the plurality of survey points has a measured depth, an inclination, and a geographic location of the point in the wellbore corresponding to...
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WO/2019/133035A1 |
A rotary steerable tool for steering a drill string can include a tool collar, a plurality of pad pushers, and a plurality of fasteners. The pad pushers can each be positionable within a respective cavity of the tool collar. Each pad pus...
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WO/2019/127878A1 |
Provided are a screw drilling tool by-pass valve with large displacement splitting function and a using method thereof. The screw drilling tool bypass valve comprises a valve body (1), and a primary valve core (2) and a secondary valve c...
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WO/2019/060320A3 |
Methods and apparatus for estimating parameters of interest of a volume in an earth formation from a response spectrum representing radiation information obtained by a radiation detector in a borehole intersecting the volume responsive t...
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WO/2019/133906A1 |
Disclosed herein are methods and systems for operating and maintaining downhole wireless networks. The methods and systems use a downhole tool, such as a hydrophone, as part of the downhole wireless network. The downhole tool may be used...
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WO/2019/133320A1 |
Systems and methods describe to a frac sleeve with an expandable ball seat. More specifically, the systems and methods include a sliding frac sleeve with a moving screen, check valve or flapper, wherein the screen, check valve or flapper...
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WO/2019/132936A1 |
A method for well logging may comprise: inserting a downhole tool into a wellbore penetrating a subterranean formation wherein the downhole tool comprises: a transmitter; a receiver; a memory configured to store at least one look up tabl...
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WO/2019/128922A1 |
Disclosed is a cutter disk for vertical shaft sinking, comprising a central block (1), side blocks (2), and a slag discharging mechanism (5), wherein the side blocks are evenly mounted on the outer wall of the lower part of the central b...
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