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Patent Searching and Data


Matches 401 - 450 out of 142,219

Document Document Title
WO/2018/099261A1
A stoping method for an oxygen-free working surface of a highly gaseous mine, comprising: aiming at a first coal seam of the highly gaseous mine which is not disturbed and a working surface (1) of which roof fissure of the coal seam is n...  
WO/2018/098593A1
A wellbore equipment assembly and components for a wellbore equipment assembly are disclosed along with a method of connecting wellbore string components. In some embodiments, the assembly includes a first component and a second componen...  
WO/2018/098592A1
An apparatus for deployment in a wellbore to control flow of fluids between the wellbore and a subterranean reservoir is provided, comprising: a housing; a port extending through the housing; a passage disposed within the housing; and a ...  
WO/2018/094657A1
A hydraulic support for soil-like coal working face, and a protection method for coal seam mining. The hydraulic support comprises a support base (7), a support top beam (5), a support vertical pillar (6), an advancing jack (8), a side p...  
WO/2018/098452A1
A torque transfer system for centrifugal pumps. A torque transfer system for a centrifugal pump includes a bearing sleeve above an impeller, the bearing sleeve and a hub of the impeller surrounding a rotatable shaft and coupled to the ro...  
WO/2018/094705A1
A hydraulic support frame, hydraulic support frame control method, and a protection method for mining a coal seam containing soil-like coals by using the hydraulic support frame. The hydraulic support frame comprises a base (7), an upper...  
WO/2018/096508A1
This invention concerns a self-drilling rock bolt for use with a two-component grout mixture for setting the rock bolt in a hole in a rock body. The body has an axial interior passage which defines a fluid flow path along which the grout...  
WO/2018/098458A1
Disclosed is a system for generating energy. The system is incorporated into a disposal or injection well. A conduit is extended down in the well from the surface. Water disposed in the well is used to drive some sort of mechanical-energ...  
WO/2018/094450A1
A core sampling system comprises at least one hollow drill rod, each drill rod arranged to be connected endwise to an adjacent drill rod so as to define a string of drill rods that define an internal drill rod space for receiving core ma...  
WO/2018/096312A1
A gate valve apparatus comprises a housing defining a flow path, a first valve seat located within the housing around a periphery of the flow path and comprising a first peripheral seal surface, and a gate valve member which is moveable ...  
WO/2018/097957A1
A offshore system for storing oil includes a hull. The hull includes a buoyancy compartment and an oil storage compartment disposed below the buoyancy compartment. The oil storage compartment has an upper end, a lower end, and an inner c...  
WO/2018/094874A1
Disclosed is a coal mining machine attitude control method based on a coal seam geographic information system. The method comprises: establishing an association model between a cutter undercut adjustment amount of a lower drum (4) of a c...  
WO/2018/097876A1
Systems and methods for determining vector-ratio safety factors for wellbore tubular design are provided. Pressure and temperature data for at least one load point along a tubular component of a wellbore are obtained. An effective failur...  
WO/2018/098453A1
Apparatus including, and methods of operating a communications network having a common data bus communicatively coupled to control devices, non-control devices, and network appliances. The control devices control corresponding equipment ...  
WO/2018/095013A1
A reaming and self-drilling anchor bolt and a construction method, applied in the technical field of quick tunneling and supporting of coal tunnels. The reaming and self-drilling anchor bolt comprises a bolt body (1), a drill bit (2), a ...  
WO/2018/098439A1
A wellbore apparatus includes a first component having a first element and a second component having a second element. The first component and the second component are connected by a multi-start thread connection and the first element an...  
WO/2018/097824A1
An additive injection apparatus has a flow manifold with an injection tube configured to communication an additive into the flow manifold. A hopper is connected to the injection tube and will deliver the additive to the injection tube. F...  
WO/2018/094655A1
Disclosed are a hydraulic support with staged pressure relief and a method for controlling the hydraulic support. The hydraulic support comprises a top support beam (4), a support base (7), a support shield beam (5), a tailing support be...  
WO/2018/095441A1
A single cone bit having a rotating tooth comprising a drill body (1), and a cone (2) transmittingly connected to the drill body (1); cutting teeth are provided on the cone (2), and at least one of the cutting teeth on the cone (2) is a ...  
WO/2018/094546A1
A pile hole cleaning mechanism (13), comprising a fixed frame (35). One end of the fixed frame is connected to a main vehicle body (62), and the other end is mounted on a hollow shaft (14); the hollow shaft is mounted on a pipeline wheel...  
WO/2018/095014A1
A self-drilling and self-anchoring anchor bolt capable of being lengthened and suitable for weak coal, and an anchoring method thereof, applied to weak coal mass supporting engineering in tunnels. An anchor bolt body comprises five parts...  
WO/2018/094656A1
A hydraulic support capable of separately performing pressure relief by means of a front pillar and a rear pillar and a hydraulic support control method, for use in correcting inclination of the hydraulic support caused by the pressure o...  
WO/2018/095752A1
A cap (100) for a hydrocarbon production well (700), said cap (100) having a body (105) with a top (100a) and a bottom (100b), the bottom (100b) having a first connecting flange (101) with a first seal face (102), the first connecting fl...  
WO/2018/097735A1
A fastening means (1) for attaching a cable (2) to a tubular body (4) is described, the tubular body (4) comprising a sleeve (6) with a first end face (61) and a second end face (62), and the fastening means (1) including : - a first att...  
WO/2018/096079A1
The present invention relates to an annular barrier (1) for being expanded in an annulus (2) between a well tubular structure (3) and a wall (5) of a borehole (6) or another well tubular structure (3a) downhole for isolating a first zone...  
WO/2018/095881A1
Process for recovering oil from a formation containing oil and water by injecting into the formation an enhanced oil recovery formulation comprising enhanced oil recovery surfactant, which process comprises (i) injecting into the formati...  
WO/2018/096160A1
A method for processing a plurality of surface-wells arranged in a well cluster on an offshore wellhead platform is provided. Each surface-well comprises a conductor having an upper part, the upper part of two or more of the conductors b...  
WO/2018/094473A1
A wellhead sleeve configured to be removably mounted to a wellhead at or near an annulus of the wellhead. The wellhead sleeve has a body having a bore therethrough, a skirt mounted to the body and an actuator configured to engage with th...  
WO/2018/095955A1
The invention relates to a hard metal insert (1) for a round shank chisel on a rotatable roller of a milling machine, having a cylindrical body (2), a conical tip (3) on the body (2), a soldering surface (5) which is provided on a base (...  
WO/2018/095321A1
An automatic positioning device and method for a big arm of an umbrella driller. The device comprises a rotating arm (1) connected to a standing column (20), a supporting oil cylinder (2), a big arm (3), a verticality adjustment oil cyli...  
WO/2018/095721A1
A method for selecting an aqueous displacement fluid comprising an aqueous solution of dissolved phosphate species includes obtaining reservoir parameters for a reservoir, receiving an input comprising a permitted loss of dissolved phosp...  
WO/2018/095012A1
An expandable reaming and self-anchoring anchor bolt, and a supporting method. The anchor bolt comprises a simple drill bit (1), an anchor bolt body, and a pretension device; the anchor bolt body comprises a plurality of drilling section...  
WO/2018/096507A1
This invention concerns a coupled self-drilling rock bolt for use with a two-component grout mixture for setting the rock bolt in a hole in a rock body. The rock bolt includes a drilling segment and at least one connecting segment. The d...  
WO/2018/098303A1
A perforation blocking sleeve is provided for use in well restimulation, the perforation blocking sleeve having a first anchoring device and one or more expandable members secured to an outer surface of the perforation blocking sleeve. T...  
WO/2018/097754A1
The invention relates to the field of oil and gas production. A perforating gun comprises a single-piece housing containing cavities perpendicular to its longitudinal axis, said cavities being formed directly in the material of the housi...  
WO/2018/097997A1
An embodiment of a system for measuring a parameter includes at least a first optical fiber and a second optical fiber configured to be disposed in one or more boreholes in an earth formation, the first optical fiber and the second optic...  
WO/2018/096345A1
A wellbore formation fluid pump (30) and downhole safety valve system (20) includes a wellbore formation fluid pump (30) operable by a motor for lifting fluid entering the wellbore to the surface. A hydraulic fluid pump (10) is operably ...  
WO/2018/097986A1
A flexible deployment system is used to deploy subsea/downhole well equipment or modules from a multi-purpose vessel without requiring a moon pool and a derrick or tower. The deployment system may include the vessel and a deployment fram...  
WO/2018/090098A1
A method of application of hard facing to wear parts, the method including the steps of providing at least one anchor portion on a wear part and attaching hard facing to the wear part using at least the at least one anchor portion.  
WO/2018/091903A3
A rotary drive apparatus (24) for a downhole tool (22), the rotary drive apparatus (24) comprising a drive stage (36a) comprising a rotor (40a) and a stator (42a) and a connecting stage (38a) for connecting to the drive stage (36a). The ...  
WO/2018/093374A1
A method of optimizing well stimulation includes characterizing a cement job within one or more intervals in a wellbore; determining anticipated regions of fluid communication within the cement job; and designing a stimulating treatment ...  
WO/2018/093378A1
A variable flow resistance system for use with a subterranean well includes a first flow path to receive a fluid, a flow rate sensor to measure a flow rate of the fluid received into the first flow path, and an actuator to control an inf...  
WO/2018/091903A2
A rotary drive apparatus (24) for a downhole tool (22), the rotary drive apparatus (24) comprising a drive stage (36a) comprising a rotor (40a) and a stator (42a) and a connecting stage (38a) for connecting to the drive stage (36a). The ...  
WO/2018/093540A1
A tong assembly (100) includes a power tong (102), a backup tong (104), and a carriage assembly (106) operatively connecting the power tong and the backup tong. The carriage assembly includes a movable trolley assembly (138). The movable...  
WO/2018/091693A1
The pipe (10) comprises: - a tubular sheath (20) with a central axis (A-A') defining an internal fluid flow passage (13); - a tubular composite structure (22), applied to the tubular sheath (20) and linked to the tubular sheath (20), the...  
WO/2018/093914A1
A torqueing tool for rotating bolts connecting a pipe flange in a subsea environment, comprising a first guide for guiding movement of the torqueing along a pipe, a socket for engaging a first bolt, a shaft for transferring torque from a...  
WO/2018/093359A1
A steering assembly includes an outer housing and a drive shaft extended longitudinally within the outer housing and defining a plurality of pockets. A plurality of torque transfer features transfer torsional loads from the outer housing...  
WO/2018/094146A1
A safety valve system (20) for a subterranean well includes a central body (22) with a central body profile (24) and a supporting body (28) having a supporting profile (30) shaped to support the central body profile. An outer diameter se...  
WO/2018/093531A1
Systems and methods for automatically tracking multi-Z horizons within seismic volumes are provided. Seed data for each of a plurality of surfaces of a multi-Z horizon within a seismic volume are obtained. A data hull for each surface is...  
WO/2018/093355A1
A system includes a turbine, a valve, and an electronics package. The turbine is configured to generate electricity from a fluid flow through the turbine and the electronics package is configured to selectively actuate the valve between ...  

Matches 401 - 450 out of 142,219