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Patent Searching and Data


Matches 651 - 700 out of 149,119

Document Document Title
WO/2020/039340A1
A rock bolt for installation within a bore formed in rock strata having an elongate shaft with the leading end for installation into the bore and a trailing end projecting from an open end of the bore. A locking nut is threadably attache...  
WO/2020/041353A1
A system for tong assembly operation includes a mode switch for shifting the tong assembly between a first mode of operation and a second mode of operation, the mode switch having a first portion associated with the first mode and a seco...  
WO/2020/037407A1
The invention relates to an anti-extrusion tool/assembly, and a sealing system comprising same. The an anti-extrusion assembly comprises an elongated backup member having a hollow body having a first end portion, a second end portion, an...  
WO/2020/040830A1
A tubular guide assembly provides lateral support to a tubular extending through a BOP. The inner diameter of the BOP encasement is larger than the joint diameter. The assembly has a guide spool with a central bore extending therethrough...  
WO/2020/040849A1
An electrical submersible pump assembly (11) for pumping well fluid from a well has a motor (17) and a pump (13). The motor has a motor shaft (77) that drives a pump shaft (25) of the pump. A thrust bearing unit (20) between the motor an...  
WO/2020/039208A1
A cleaning head for a cleaning system for use in cleaning a fluid conduit for transporting hydrocarbons and/or a fluid conduit in a hydrocarbon wellbore, comprises a body defining an outer surface having a cross-section which is configur...  
WO/2020/041359A1
A suction cover assembly for a reciprocating pump assembly includes a suction cover having a body that is configured to be held at least partially within an access port of a fluid cylinder of the reciprocating pump assembly. The body inc...  
WO/2020/038848A1
A system for deploying an untethered drone (16) is provided. The system includes a wellbore drone (16) for being deployed into a wellbore, a magazine unit (2), and a control system. The wellbore drone is configured to perform at least on...  
WO/2020/040645A1
A pipe system (1) for connecting installations (2) on a seabed, the pipe system (1) comprising: - a pipe (3) comprising two end sections (30) and a plurality of intermediate pipe sections (31, 32, 33) being arranged substantially paralle...  
WO/2020/041147A1
Provided are compositions, methods, and systems that relate to downhole tractor wheels. A downhole tractor system comprising: tubular housing capable of being deployed downhole by wireline; plurality of wheels rotatably mounted to tubula...  
WO/2020/040642A1
Downhole well pump assembly (1) having first and second pump units (7a, 7b) with first and second bellows (31) connected to inlet and outlet check valves. A drive fluid assembly (5) with first and second hydraulic drive lines (9a, 9b) co...  
WO/2020/040751A1
A cross sectional representation of a geological surface is displayed on a display screen. A segment of the cross-sectional representation is edited, and a pseudo log of formation properties based on the edited segment is displayed on th...  
WO/2020/038721A1
Double-walled tube section for constructing a double-walled tube segment suitable for underpressure applications such as an evacuated tube transport system.  
WO/2020/041238A1
A diffuser assembly is provided which includes an upper mounting member mountable within a conduit and having an fluid inlet port, and a lower section having a diffuser screen. A plurality of radially oriented cutters are removably attac...  
WO/2020/040896A1
A control system may comprise a flow control device, wherein the flow control device comprises water floats and gas floats and a regulatory valve connected to the flow control device through a control line. An autonomous flow control dev...  
WO/2020/041056A1
Provided is a safety valve. The safety valve, in one aspect, includes a valve body defining a central bore extending axially through the valve body, a sliding sleeve disposed in the central bore, and a flow tube disposed relative to the ...  
WO/2020/038051A1
A method for calculating the amount of energy conservation of open controllable circulating ventilation for an extra-long highway tunnel. The method comprises the following steps: firstly, determining a calculation formula for the total ...  
WO/2020/039354A1
An apparatus is described that permits attaching, via a holder or container, one or more pieces, e.g., drill and/or driver bits, to a drill. Such attachment makes it possible to transport drill and/or driver bits or other drill pieces wi...  
WO/2020/035678A1
An end section of a tubular member (12, 112) is removed by lowering a water-abrasive cutting system (18, 118) and a clamp (14, 110) into the tubular member. The clamp and the cutting system are secured to the tubular member and cutting s...  
WO/2020/034349A1
A hard rock coring drilling tool, comprising an outer core tube (5) and a hollow drill bit (1), wherein the drill bit (1) is installed at a lower end of the outer core tube (5), outer walls of the outer core tube (5) and the drill bit (1...  
WO/2020/036696A1
An inflow promotion arrangement including a housing; and a promotion configuration within the housing, the promotion configuration actuatable by fluid from a relatively higher productivity index zone of a wellbore.  
WO/2020/034367A1
An automatic triggered docking and opening flip board structure, comprising a flip board valve and an outer barrel (4). The flip board valve comprises a valve base (1), a valve disk (2), and a spring piece (3). The valve base is provided...  
WO/2020/037080A1
A pipe cleaning tool for cleaning pipe surfaces is configured for operative engagement with a drill motor. The cleaning tool includes a body having a sidewall extending between a first end and a second end of the body. Cleaning blades lo...  
WO/2020/036494A1
A downhole tubular sleeve valve (10) includes a rotary coaxial valve sleeve (14) with a plurality of circumferentially spaced sleeve flow paths (20) extending through the valve sleeve (14). The valve sleeve (14) is located inside a housi...  
WO/2020/036914A1
A system including a bottom hole assembly (101) and a ram (103) positioned below a barrier (105) of a well and methods for deploying the same are described. The ram (103) is configured to secure the bottom hole assembly (101) at an end o...  
WO/2020/037221A1
A downhole tool for cyclically generating cyclical pressure waves in drilling fluids of sufficient magnitude to vibrate a drill string or coiled tubing to reduce friction between drill string or coiled tubing and a wall of an uncased or ...  
WO/2020/036579A1
The disclosed embodiments include quadrupole transmitters and methods to determine wave velocities of a downhole formation. In some embodiments, the quadrupole transmitter has a first piezoelectric ring and a second piezoelectric ring th...  
WO/2020/034351A1
Disclosed is a rock core storage cylinder, comprising a rock core cylinder (1), a drilling machine outer cylinder (2), a flap valve (3) and a triggering mechanism, wherein the flap valve (3) comprises a valve seat (31) and a sealing valv...  
WO/2020/034359A1
A rock core fidelity cabin having a thermostatic function, comprising a mechanical part and an electric appliance part. The mechanical part comprises an inner coring barrel (8) and an outer coring barrel (6); the outer coring barrel (6) ...  
WO/2020/036944A1
A shear seal includes a seal plate (105) having a first seal surface (106) and a sliding seal assembly (170) having a second seal surface (181), and at least one of the first and second sealing surfaces comprise an insert (190) comprisin...  
WO/2020/034898A1
A cantilever-type driving and anchoring integrated machine. An anchoring bolt boring machine (300) comprises a vertical swing boring arm (304) and a horizontal swing boring arm (306); the vertical swing boring arm (304) is hinged to a ch...  
WO/2020/034363A1
Disclosed is an interlocking mechanism for a core retrieval drill rig and a toothed drill. The toothed drill is hollow, and the outer wall of the core retrieval drill rig slidingly cooperates with the inner wall of the toothed drill. The...  
WO/2020/036596A1
The subject disclosure provides for a method of eccentricity correction of a borehole shape computation. The method includes deploying a caliper tool into a borehole penetrating a subterranean formation and acquiring field measurements w...  
WO/2020/034364A1
A core drilling rig liquid channel starting mechanism, comprising a lock body (3), a locking rod (2), a shear pin (5), and a center rod (1). The lock body (3) is sequentially provided with a locking section (31), a sealing section (32), ...  
WO/2020/034353A1
Provided is a sealing structure with an explosion-proof function for an upper part of a pressure maintaining barrel. The sealing structure comprises a rock core barrel (1), an inner rod (2), and a relief valve (3), wherein a lower end of...  
WO/2020/034350A1
Disclosed is a core drilling tool, comprising a core drill bit, a core catcher (1) and an inner core pipe (2); the core drill bit comprises an outer core pipe (3) and a hollow drill (4); the drill includes second-level blades (411, 421),...  
WO/2020/034643A1
A drilling process of a pressure-preserving cable core drilling machine for subsea natural gas hydrates, comprising the following steps: 1) drilling down; 2) core drilling by suction and pure-pressing for soft formation, or core drilling...  
WO/2020/036844A1
A method may include connecting a network device to a control zone of a drilling management network. The control zone may include a control system that includes a programmable logic controller that performs drilling operations. The metho...  
WO/2020/034368A1
A turnover plate structure capable of being automatically triggered. The turnover plate structure comprises a turnover plate valve, an outer cylinder (4), a core cylinder (7) and a trigger mechanism, wherein the trigger mechanism compris...  
WO/2020/034024A1
A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circu...  
WO/2020/034356A1
Disclosed is a pressure maintaining cylinder sealing structure, comprising a core barrel (1), an inner rod (2), a drilling outer cylinder (16) and a flap (18), wherein a lower end of the inner rod is in sealing cooperation with an inner ...  
WO/2020/034352A1
A chain armor type flap valve, comprising a valve base (1) and a chain armor type valve clack (2). The valve clack (2) comprises elastic seal rings (24), elastic connecting bars (22), seal elements (23), and multiple lock pieces (21) seq...  
WO/2020/034354A1
A core cutting device, comprising an annular base body (1) and a plurality of claws (2), wherein the claws are uniformly arranged on the annular base body (1), lower ends of the claws (2) are connected to the annular base body (1), and u...  
WO/2020/036592A1
A method and device for a radially expandable downhole tool for bearing axial loads upon radial expansion into anchoring and sealing engagement with a downhole tubular positioned in a subterranean wellbore. The device may comprise a radi...  
WO/2020/034358A1
A core preservation compartment having a constant pressure function comprises a mechanical portion and a control portion. The mechanical portion comprises an inner coring barrel (8), an outer coring barrel (6), and an accumulator (29). T...  
WO/2020/037186A1
A method for hydraulic fracturing of a subterranean formation includes injecting an oil-based fracturing fluid into the subterranean formation through a well. The method also includes injecting a second fracturing fluid, for example a wa...  
WO/2020/036893A1
Embodiments relate to methods for assessing inaccessible pore volume for polymer flooding. The methods include utilizing nuclear magnetic resonance to monitor polymer-based fluid displacements into porous media. According to an embodimen...  
WO/2020/037062A1
A controlled rate of propagation of the fluid saturation front or thermal front is desired in may oil and gas and geothermal operations. Natural fractures and fractures created during hydraulic stimulation may have heterogeneous hydrauli...  
WO/2020/037134A1
Earth boring tools having offset blades with a plurality of fixed cutters having side rake or lateral rakes configured for improving chip removal and evacuation, drilling efficiency, and/or depth of cut management as compared with conven...  
WO/2020/037048A1
A downhole tool assembly including a bridge plug (102) and a cement retainer (104) in tandem to be deployed into a wellbore (202) on the same run or trip for remedial cementing of the wellbore (202).  

Matches 651 - 700 out of 149,119