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WO/2024/052812A3 |
A repair system for repairing localized defects of a pipe extends along a first longitudinal axis (A2) and has a seal plate (12), which is configured to be arranged in contact with the outer surface of the pipe (2) above the defect (4) t...
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WO/2024/075745A1 |
This hydraulic hammer device is provided with a dual damper having: a pushing piston (5); a damping piston (6); a hydraulic pushing chamber (51) that produces propulsion in the pushing piston (5); a hydraulic damping chamber (61) that pr...
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WO/2024/042470A1 |
This invention relates to a lightweight drill (1) and more particularly, but not exclusively, to a lightweight hydraulic rock drill which makes use of a reciprocating hammer or chisel, used for making holes. The lightweight drill (1) com...
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WO/2024/008585A1 |
A wellbore percussive drilling apparatus comprises a support and a transmission shaft axially moveable relative to the support in reverse first and second directions (i.e., the second direction is opposite to the first direction), wherei...
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WO/2024/006294A2 |
A cutter for a well construction tool has a cutting structure affixed to a substrate, which defines a monotonically decreasing diameter with respect to an axial distance from an interface between the cutting structure and the substrate. ...
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WO/2023/200472A1 |
A thread protector that has an external sleeve to protect threads disposed on a tubular member. The thread protector includes a flange disposed on a first end of the external sleeve to be engageable with an end of the tubular member. The...
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WO/2023/198609A1 |
The present invention relates to a drill bit assembly (1) for a reverse circulation down- the-hole hammer (100). The assembly comprises a percussion bit (2) having a head portion (3) with a cutting face (5) at a forward end thereof with ...
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WO/2023/177330A1 |
The present disclosure relates to a damping arrangement (10) for a hydraulic rock drilling machine, and to a hydraulic rock drilling machine comprising such a damping arrangement. The damping arrangement comprises a housing (4) and a dam...
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WO/2023/144377A1 |
A drilling component (200) comprising a first end portion (260) configured to be arranged to face the a first section of a drill string, wherein the first end portion (260) comprises a first interconnecting portion (210) configured to en...
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WO/2023/099716A1 |
A valve cylinder, an impact device of a rock breaking apparatus and a method for preventing cavitation in a hydraulic impact device of a rock breaking apparatus. The valve cylinder (23) is an elongated piece comprising a central opening ...
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WO/2023/091443A1 |
A downhole vibration tool includes a body, a mandrel, a spring, and a balance piston. The body may be generally tubular and may have one or more helical slots formed on an inner surface thereof. The mandrel may be generally tubular, may ...
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WO/2023/070145A1 |
Drilling assembly includes drill bit 11 connected to gas injector sub-assembly 27, which is connected to the bottom of drill rod 33. The top of drill rod 33 is connected above ground to entry sub-assembly 39, which has connected atop, dr...
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WO/2023/037033A1 |
Various example embodiments relate to drilling a hole using a fluid drilling system. The system (1) may comprise a drill string (2), a drill hammer (3) coupled to a lower end of the drill string (2), and a flow channel (5). The flow chan...
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WO/2023/273226A1 |
A reversing valve (5) for a hydraulic rock drill, comprising a valve body (53) and a valve core (52). A control chamber (S), a high-pressure oil supply chamber (P), an outlet chamber (A), an oil return chamber (T), and a balance chamber ...
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WO/2023/273225A1 |
A signal oil output structure of an impact cylinder of a hydraulic rock drill. The impact cylinder (4) is merely provided with one signal oil port (41) communicated with a control cavity (S) of a reversing valve (5); during a return stro...
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WO/2022/221422A1 |
A subsea foundation (10) comprises at least one mudmat (12) having a top panel (18) and a skirt (20) depending from the top panel to be embedded into seabed soil. At feast one auxiliary plate (26) is supported by the mudmat, the plate be...
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WO/2022/178582A1 |
A damper apparatus for use in pneumatic percussion drilling comprises a body having one or more damper apparatus supporting a measuring instrument. Each damper apparatus dampens shock/vibration from the pneumatic percussion drilling that...
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WO/2022/178583A1 |
A drill rod comprises a body comprising one or more fluid supply channels, a fluid return channel and one or more compartments.
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WO/2022/175438A1 |
A flushing element, rock drilling machine and method of providing a flushing space around a shank adapter of a rock drilling machine. The flushing element (19) surrounds the shank adapter (8) passing through it. The flushing element comp...
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WO/2022/175374A1 |
A shank adapter, rock drilling machine and method of mounting a shank adapter of a rock drilling machine inside a slide bearing element. The shank adapter (8) comprises a coupling head (25) and a rotation portion (26) at its opposite end...
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WO/2022/171595A1 |
A hydraulic percussion device and method of controlling working cycle of a percussion piston. A rock breaking machine (1, 41) comprises a percussion device (4) provided with a reciprocating piston (9) executing a working cycle (WC). The ...
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WO/2022/147169A1 |
A pulsation dampening device includes a body having an upper connection end and a lower connection end, each connection end adapted to connect the body to connectors for a drill string pipe segment. Flow restriction is provided within an...
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WO/2022/139654A1 |
The present invention relates to a method for optimising at least one drilling parameter during an ongoing drilling process, the drilling being carried out by a percussive drilling machine (105), the drilling machine (105) being set to d...
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WO/2022/140719A1 |
A power condition system is disclosed for conditioning power for charging of at least one capacitive element of a pulse power electrode, where the electrical power is received from at least one of a downhole alternator or generator. The ...
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WO/2022/114572A1 |
The purpose of the present invention is to provide a core barrel hammer system having improved slime discharging and core cutting functions, wherein the system prevents clogging of a slime discharge pipe even while quickly discharging sl...
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WO/2022/096661A1 |
The present invention relates to a drilling device. The device comprises at least one drill rod, the or each drill rod having a first cylindrical wall defining an elongate chamber for receiving a working fluid to form a fluid column, the...
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WO/2022/079495A1 |
A demolition hammer is disclosed. The hammer includes a hollow body of a pre-defined shape. The hammer also includes a supporting means partially housed within the hollow body at a first end. The hammer also includes a nail bit operative...
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WO/2022/069653A1 |
A percussive drill bit comprising a sleeve section and bit section having a longitudinal axis; wherein the sleeve section has an axial end at the opposing end of the drill bit compared to the bit section from which a generally conically ...
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WO/2022/069652A1 |
A percussive drill bit comprising a sleeve section and bit section having a longitudinal axis; wherein the sleeve section has an axial end at the opposing end of the drill bit compared to the bit section from which a generally conically ...
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WO/2022/065770A1 |
The present invention relates to an air switching device for a core barrel hammer system, wherein an air switching device is provided between a rotating rod and a core barrel hammer system and configured to supply air to an air hammer wh...
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WO/2022/064382A1 |
The present invention falls within the field of drilling structures and apparatus, such as a drilling machine. The present invention therefore relates to a drilling structure (100) for cutting a rock mass, comprising a support structure ...
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WO/2021/251862A1 |
The present disclosure relates to a computer-implemented method and system for diagnosing the function of at least one accumulator in a hydraulic circuit in percussive rock drilling. The hydraulic circuit provides pressurised hydraulic f...
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WO/2021/245065A1 |
A piston guiding element, rock drilling machine and method for supporting a front end portion of a percussion piston of a rock drilling machine. The element (20) comprises a braking recess (16) at its rear end (24). The element further c...
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WO/2021/233768A1 |
An Electrical Connector An electrical connector is disclosed for supplying power to electrical equipment. The connector comprises a first connector part comprising an electrically conductive pin and an insulating layer, and a second conn...
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WO/2021/230955A1 |
Systems and methods of estimating well parameters are disclosed. In one embodiment, a method of estimating well parameters includes receiving a plurality of wells, each well defined by a plurality of well attributes, receiving a pluralit...
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WO/2021/214431A1 |
A drill comprising a drill bit comprising a first drill part and a second drill part configured to slide relative to each other, wherein the first and second drill parts are pivotally coupled at one end to a first member and a second mem...
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WO/2021/198038A1 |
The present invention relates to a fluid-operated percussion drill tool (1) comprising an outer wear sleeve (2) comprising a substantially cylindrical wall (3) and having inner (4) and outer (5) surfaces. The tool also comprises a percus...
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WO/2021/202426A1 |
A fluid pulse generator can include a fluid motor and a bypass flow path in fluid communication with an inlet and an outlet, and a flow control device configured to permit flow through the bypass flow path in response to a predetermined ...
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WO/2021/198605A1 |
A rotary percussive hydraulic drill (2) comprises a body (3); a shank (13) having female coupling splines and male coupling splines; a percussion piston (5) configured to strike the shank; a rotational-drive device (18) configured to dri...
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WO/2021/179063A1 |
A machine and method for making underground excavations in rock, The machine comprises hydraulic percussion hammers which drive drill bits into the rock face to be bored. A hydraulic power unit (HPU) is located on the machine. The HPU po...
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WO/2021/178786A1 |
A fluid pulse generator can include a fluid motor including a rotor that rotates in response to fluid flow, a variable flow restrictor positioned upstream of the fluid motor and including a restrictor member rotatable relative to a porte...
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WO/2021/162979A1 |
Automated flowline leak sealing can be implemented as a flowline sealing tool assembly (104). A sealing sleeve (106) is configured to be positioned within a flowline (100) with a circumferential leak (102). The sealing sleeve includes a ...
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WO/2021/110900A1 |
The invention relates to an offshore hydrocarbon production facility arrangement that is to be located on a body of water, which includes a floating hydrocarbon processing unit, a floating renewable electric energy source, and a hydrogen...
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WO/2021/100066A1 |
A flexible composite hose (100), for transportation of fluids in the field of chemical and/or petrochemical industry, comprising: - a cylindrical multi-layered surface (106), composed of some layers made of different materials, situated ...
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WO/2021/069657A1 |
A drilling assembly for percussive drilling, comprising at least two of a drill bit, a drill rod and a guide adapter; wherein the peripheral surface of the shoulder on the drill rod is at least partially encased in both radial and axial ...
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WO/2021/006800A1 |
The present invention relates to a method for estimating wear of a drill bit in percussive rock drilling, wherein a percussion device (106) is configured for generating shock waves in a drill bit (108) for breaking rock; the method compr...
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WO/2020/222890A1 |
A vibration assembly includes a valve above a rotor and stator. The rotor rotates within the stator as fluid flows therethrough. The valve includes a rotating valve segment, which rotates with the rotor, and a non-rotating valve segment ...
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WO/2020/148333A1 |
The invention relates to a rock drilling system (10) for geothermal drilling. The rock drilling system (10) comprises a drilling rig (2) with a drill string (22) and a drilling hammer (4) for drilling a borehole (9); at least one air com...
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WO/2020/139459A2 |
A method and apparatus for plugging a wellbore casing with a sleeve either mechanically or explosively.
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WO/2020/118785A1 |
A drilling device and a drilling method therefor. A mounting cylinder (5) is disposed in a housing (12), a motor (4) is mounted in the mounting cylinder (5), a shafting (7) is rotatably mounted in the mounting cylinder (5), one end is co...
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