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Matches 51 - 100 out of 145,932

Document Document Title
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO/2019/132913A1
A wellbore trajectory survey includes an ordered plurality of survey points, each of which has a measured depth, an inclination, and a geographic location. The wellbore trajectory survey is ordered on measured depth. A minimum lateral me...  
WO/2019/072899A3
A system for processing acoustic data to identify an event comprises a receiver unit comprising a processor (168) and a memory (170), where the receiver unit is configured to receive a signal from a sensor (164) disposed along a sensor p...  
WO/2019/133036A1
A rotary steerable tool for steering a drill string may include a tool collar extending along a longitudinal axis of the tool, a pad pusher, a pad retention housing, and a piston liner. The pad pusher may be rotatable about a pivot axis ...  
WO/2019/129714A1
A super hard polycrystalline construction has a first region having a body of thermally stable polycrystalline super hard material with an exposed surface forming a working surface, and a peripheral side edge, a second region forming a s...  
WO/2019/127330A1
Disclosed is a coal mine safety monitoring system. The system comprises an uphole part and a downhole part, the uphole part comprising a power source lightning arrester, a monitoring host and a standby monitoring host connected to a powe...  
WO/2019/128921A1
Disclosed is an annular bracing boot propulsion system for vertical shaft sinking, the system comprising an intermediate column (8), several boot plates (1) and several bracing cylinders (2), wherein the boot plates (1) and the bracing c...  
WO/2019/129716A1
A polycrystalline diamond (PCD) construction has a first region with a first set of one or more strata comprising a first grade of PCD material and a second set of strata comprising a second grade of PCD material. The first set is arrang...  
WO/2019/132878A1
A valve body includes a mixing chamber within the valve body, a plurality of passages through the valve body into the mixing chamber, and a sensor located within the valve body. The sensor has a sensor output representing a property of a...  
WO/2019/133873A1
A conveyance model 710 for predicting an output 730 in response to an input, wherein: the input comprises one or more of a wireline input 722, a toolstring input 724, a well input 726, and/or a conveyance input 728; and the output compri...  
WO/2019/133366A1
A hybrid telemetry system includes a plurality of telemetry networks configured to communicate a modulated signal representing digital data along adjoining sections of a pipe string. The plurality of telemetry networks may each be optimi...  
WO/2019/132929A1
The disclosed embodiments include systems and methods to improve downhole drilling. In one embodiment, a method to improve downhole drilling includes receiving a well plan, where the well plan is indicative of a well path to form a boreh...  
WO/2019/133306A1
The current subject matter provides a tool and user interface for estimating a velocity at which a plunger of a rod lift pump system will impact a fluid within a well when the rod lift pump system is altered to operate under various cond...  
WO/2019/133002A1
A system for controlling flow of a fluid into or out of a wellbore having a wellbore wall. The system includes a tubular with a tubular bore and locatable in the wellbore. The system also includes a housing that includes a flow channel i...  
WO/2019/133870A1
A sucker rod guide having low friction and high wear resistance is disclosed herein, along with a fluid extraction system comprising the same. At least a part of the exterior surface of the sucker rod guide is formed from a cold worked a...  
WO/2019/132860A1
A sensor module can be used to make measurements during a single trip into and out of a wellbore in connection with a cement operation. The sensor module can include a detachment mechanism to detachably couple to a cement dart. The senso...  
WO/2019/128956A1
Disclosed are a diamond composite plate and a drill bit provided at the tip thereof with the diamond composite plate. The diamond composite plate comprises a hard alloy substrate (102) and a diamond composite layer (101). The diamond com...  
WO/2019/132907A1
A fluid injection system for injecting a particulate in a fluid, including a high-pressure pump operable to output the fluid from an outlet flow channel and a reservoir configured to hold the particulate. The system also includes a valve...  
WO/2019/133507A1
The disclosure relates to an end fitting attachable to an end of a sucker rod. The end fitting includes a generally cylindrical body including a receptacle portion and a coupling portion along a longitudinal axis. The receptacle portion ...  
WO/2019/132989A1
Magnetic assemblies for downhole nuclear magnetic resonance tools are provided. A magnetic assembly includes one or more permanent magnets and one or more magnetically permeable structures. The magnetically permeable structures generate ...  
WO/2019/132969A1
Aspects of the present disclosure relate to a downhole device including an actuator which has a primary purpose to operate the device while also having a secondary purpose to induce controlled pulses into a downhole environment at a firs...  
WO/2019/129711A1
A super hard polycrystalline construction includes a first region having a body of thermally stable polycrystalline super hard material with an exposed surface forming a working surface, and a peripheral side edge. The polycrystalline su...  
WO/2019/132859A1
An antenna system can include casing-side antennas and a full wave rectifier. The casing-side antennas can be coupled to a casing string that is positioned in a wellbore for communicatively coupling to a tubing-side antenna positioned in...  
WO/2019/132952A1
A pump monitoring system for use in wellbore operations can determine whether an indication of a failure is due to an actual pump issue or a failed sensor. The pump monitoring system includes a sensor on a fluid end of a pump to measure ...  
WO/2019/132877A1
An extendable wellbore tool may include a housing, a telescopic cylinder, and one or more hydraulic actuators. The telescopic cylinder may be disposed within the housing and may include two or more cylinders configured to extend and retr...  
WO/2019/131939A1
The present invention provides a diverting agent comprising resin particles of a polyvinyl alcohol-based resin, the resin particles of the polyvinyl alcohol-based resin being a mixture of particles including two or more types of resin pa...  
WO/2019/133625A1
A composition for use in surfactant polymer flooding processes in a carbonate reservoir, the composition comprising a surfactant, the surfactant operable to reduce interfacial tension, a polymer, the polymer operable to increase the visc...  
WO/2019/128685A1
A gamma energy spectrum unfolding method and apparatus for element capture energy spectrum logging. The spectrum unfolding method comprises: firstly, pre-processing data acquired by means of an element capture energy spectrum logging ins...  
WO/2019/132691A1
The invention relates to the field of drilling. A drilling assembly comprises a drill bit, and a positive displacement motor having a bending unit for deviation by a tilt angle f, and further comprises a rotation module and a hinge modul...  
WO/2019/132975A1
The disclosed embodiments include a method of downhole leak detection. The method of downhole leak detection includes obtaining physical signals detected by at least one physical sensor traveling along a wellbore. Additionally, the metho...  
WO/2019/132951A1
A control system can include a resettable chamber and a bidirectional valve. The bidirectional valve can be switchable between (i) a first configuration for enabling fluid flow from the control line into a first port of a well tool and f...  
WO/2019/132973A1
A system and method for making measurements inside a wellbore makes use of a diamond crystal with a nitrogen vacancy center (NV-center) to sense temperature, pressure, magnetic fields, strain, electric fields, or other parameters of the ...  
WO/2019/133034A1
A steering head for steering a drill string may include a pad pusher including a steering pad and a piston. The steering pad may have a pivot axis, and be rotatable about the pivot axis between retracted and extended positions. The pad p...  
WO/2019/133032A1
A drill string steering system includes a motor and a rotary valve body disposed in a tool body. The motor includes a motor shaft coupled to the motor and extending within a central bore of the tool body. The motor shaft has a downhole e...  
WO/2019/119676A1
Disclosed is a method for experimentally determining the effect of acid liquid on the Young's modulus of a tight carbonate rock, comprising: (1) selecting a standard rock core of a tight carbonate rock to perform a uniaxial compressive s...  
WO/2019/108971A8
Emulsion or microemulsion for treating an oil or gas well having a wellbore are provided, and related methods. In some embodiments, the emulsion or microemulsion comprises an aqueous phase; a surfactant; and a non-aqueous phase comprisin...  
WO/2019/125180A1
Disclosed is an apparatus for supporting a flywheel on a floating vessel, the apparatus comprising: a support for the flywheel; at least one tilt sensor for measuring an angle of slope relative to the Earth, the at least one tilt sensor ...  
WO/2019/119035A1
The present invention relates to a density tracer assembly, the density tracer assembly includes a density tracer including a high-density component having a density of about 7g/cc or higher. A radio frequency (RF) transmitter is borne b...  
WO/2019/125359A1
A method includes performing a first wellbore treatment operation of a wellbore, determining an operational attribute of the well in response to the first wellbore treatment operation, and determining a predicted response using a recurre...  
WO/2019/126487A1
An overpressure control apparatus is used to control jets of high-pressure fracking fluid or other stimulation fluid released from a treatment flowline in cases of overpressure. The apparatus includes a collection tank and one or more va...  
WO/2019/125465A1
Sliding sleeve assemblies may include one or more sliding sleeve tools to stimulate one or more zones in a wellbore. The one or more sliding sleeve tools may be actuated based on an actuation sensor. A property sensor may be disposed adj...  
WO/2019/126509A1
A connection includes a first tubular member having a first screw threadform defined by a first plurality of crests, roots, and flanks, where each flank separates each crest from each root. The connection also includes a second tubular m...  
WO/2019/125834A1
An electrical submersible pump assembly (13) includes a motor (21) having a stator (27) with a bore (29) extending along a longitudinal axis (32). A shaft (31) with axially spaced apart rotor sections (33) extends longitudinally through ...  
WO/2016/066177A3
This technique (Dynamic Underbalanced Drilling- DUBD) is based on basic physical and fluid mechanics laws to create an underbalanced zone below and around the bit. This technique utilizes the high velocities of drilling fluid coming out ...  

Matches 51 - 100 out of 145,932