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WO/2018/183499A1 |
A system for generating pressure pulses in drilling fluid includes a concentric drive power section. The power section includes a stator and a rotor rotatably disposed in the stator. The rotor is coaxially aligned with the stator. The sy...
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WO/2018/183861A1 |
A managed pressure drilling (MPD) manifold is adapted to receive drilling mud from a wellbore during oil and gas drilling operations. The MPD manifold includes one or more drilling chokes.
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WO/2018/176058A2 |
A pressure control device may include a body having a central axis extending therefrom; at least one rotatable seal within the body, the rotatable seal configured to seal against a tubular extending through the pressure control device al...
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WO/2018/175763A1 |
Methods and systems for determining tracer breakthrough from multiple wells commingled at a Gas Oil Separation Plant (GOSP) are provided. An example hydrocarbon reservoir monitoring method includes periodically sampling fluid carried by ...
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WO/2018/172843A1 |
This disclosure may generally relate to drilling operations and, more particularly, to systems and methods for cleaning a drilling fluid as it travels back to the surface from a wellbore. An apparatus may comprise a magnetic body (208) h...
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WO/2018/170500A1 |
A testable back pressure valve for controlling fluid flow through a bore of a component installed in a well bore is disclosed. The back pressure valve includes a valve body which is configured to be secured in the bore, a flow bore which...
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WO/2018/164572A1 |
A semi-submersible drilling vessel has a deckbox structure and a shaker room. A downward sloping mud return line is provided that passes mud from the diverter to the shaker room. In the shaker room there are one or more shale shaker devi...
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WO/2018/160264A1 |
This disclosure provides a pre-mixed lost circulation treatment that can be pre-mixed ahead of time at a plant and delivered to a drilling site in one or more transport containers becaise the pre-mixture having a shelf life of at least o...
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WO/2018/152622A1 |
Adjustable passive choke devices, systems, and methods for controlling fluid flow rate, pressure, or both, are provided. The adjustable passive choke devices may comprise a fluid conduit having a first end, a second end, and an interveni...
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WO/2018/156154A1 |
Methods are provided to inhibit scale formation in oil or gas production systems. In one embodiment, the scale inhibiting treatment comprises: A) an AAA terpolymer and B) a phosphonate. The treatment can be added to these systems in the ...
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WO/2018/156155A1 |
Methods are provided to inhibit scale formation in oil or gas production systems. In one embodiment, the scale inhibiting treatment comprises: A) an AAA terpolymer and B) a polycarboxylate such as a polyepoxy succinic acid (PESA). The tr...
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WO/2018/152388A1 |
A drilling fluid system and associated method for supplying drilling mud to a drilling operation includes a plurality of first sensors associated with a first mud pit, configured to measure a plurality of properties of the drilling mud i...
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WO/2018/141048A1 |
A closure arrangement for use on a rotating control device used during managed pressure drilling, said closure arrangement adapted for the installation of a bearing assembly adapted for insertion into a body, said body defining an upper ...
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WO/2018/143817A1 |
It is discussed a method for drilling a well through a formation from a drilling installation, for the recovery of fluids, where a drill pipe (30) made up of a number of drill pipe sections is lead down into the formation and is supplied...
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WO/2018/136908A1 |
An apparatus includes a materials separator that includes a continuous filter belt disposed around a plurality of rollers. The apparatus also includes a pressure differential system operatively coupled to the separator and configured to ...
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WO/2018/136571A1 |
An iron roughneck for constant circulation of drilling mud during operation of a drill string, the iron roughneck comprising: a frame; a wrench unit supported by the frame, wherein the wrench unit is capable of gripping a drill string; a...
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WO/2018/136451A1 |
A circulation coupler for continuous or constant circulation of drilling mud during operation of a drill string, the circulation coupler comprising: a housing having an upper open end and a lower open end, wherein the housing has a port ...
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WO/2018/136573A1 |
A method for maintaining a constant bottom hole pressure during wellbore drilling operations, the method comprising supplying drilling fluid to the drill string via a top drive at a first pressure while flow of drilling fluid out of a we...
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WO/2018/132810A1 |
A system comprises a wellsite including a wellbore location and a BOP positioned at the wellbore location, a drilling rig in the wellsite and including a rig floor and at least one substructure, the substructure having a longitudinal axi...
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WO/2018/132309A1 |
Systems and methods for dosing slurries to remove suspended solids from the slurry are disclosed. The systems and methods may be used to dewater slurries having relatively high solids content such as earthen slurries. In some embodiments...
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WO/2018/111733A9 |
A conduit forming part of a drilling fluid return path from a wellbore has at least one flow restrictor disposed on an interior surface of the conduit. A drill string is disposed through the interior of the conduit and has at least one f...
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WO/2018/128763A1 |
An early kick detection system including a kick detection computing device coupled to at least one sensor associated with a drilling system of a well. The kick detection computing device is configured to receive measurement data from the...
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WO/2018/126392A1 |
A sensing sub-assembly for use with a drilling assembly includes a cylindrical body and at least one sensor coupled to the cylindrical body. The cylindrical body includes an internal flow channel extending therethrough, which is configur...
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WO/2018/129052A1 |
A drilling bottom hole assembly for loss circulation mitigation includes a drill bit configured to drill a wellbore in a formation. The drill bit is attached to a drill string. The wellbore includes a high-loss circulation zone into whic...
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WO/2018/125198A1 |
This disclosure provides a sliding sleeve apparatus that has a flow inhibitor that slows the fluid flow between the interior passageway of the sliding sleeve and the well annulus to allow pressure equalization between the interior passag...
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WO/2018/118438A1 |
An apparatus includes a conduit forming part of a drilling fluid return path from a wellbore. The the conduit has at least one well outflow control in the conduit. The at least one well fluid outflow control has at least two annular flow...
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WO/2018/112899A1 |
An experimental device and device for conducting multiphase separation on natural gas hydrate well drilling liquid. The experiment device comprises a solid-phase separator (1), a liquid injection module, a gas injection module, and a gas...
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WO/2018/115336A1 |
A description is given of a drilling fluid for earth drilling, wherein the drilling fluid comprises a liquid and at least one mineral. A recycling device preconditions supplied drilling fluid. At least one drilling fluid analyser is prov...
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WO/2018/118550A1 |
An apparatus includes a housing and at least two pipe ram systems engageable with the housing. Each of the at least two pipe ram systems comprises an actuator, a bonnet and a sealing pipe ram element. The at least two pipe ram systems ar...
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WO/2018/118509A1 |
An apparatus for use in a wellbore is disclosed that in one non-limiting embodiment includes a flow restriction device that that contains a channeling element having a fluid flow passage, a restriction element spaced from the channeling ...
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WO/2018/111281A1 |
Contamination estimation of a mud filtrate or reservoir sample requires a robust handle on the properties of mud filtrate at downhole conditions. Coupling acquired data with downhole measured data provides a robust estimation of contamin...
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WO/2018/111602A1 |
A drilling choke is controlled in a controlled pressure system. Pressure is monitored, and position of the drilling choke is monitored. An adjustment to the position of the drilling choke is determined based on the monitored pressure to ...
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WO/2018/106913A1 |
Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing aqueous polymer solutions by combining these LP compositions with an aqueous flui...
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WO/2018/103919A1 |
The invention relates to a drilling tool and a method for producing a bore in the ground, in which method ground material is carried away by a removal device on the underside of a main body of the drilling tool, flushing air is supplied ...
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WO/2018/104547A1 |
The invention proposes a method and devices that can be used in the method for trenchless laying of a cable (1) in the ground (13), in which method vertical multifunction bores (3) are created along a drilling line (4) in the ground (13)...
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WO/2018/098595A1 |
A subassembly for inserting a frangible pressure disc seal in the inner conduit of a tubing string in a wellbore, particularly for a deviated wellbore, to seal the tubing string to provide pressure control while required by the operator....
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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...
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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...
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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...
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WO/2018/094318A1 |
The multifunction wellbore conditioning tool (100, 200, 300) is installed in the bottom hole assembly of a drill string and performs the functions of a cutting tool, keyseat wiper, roller reamer, keyseat wiper, and stabilizer during dril...
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WO/2018/094123A1 |
Methods of treating a subterranean formation penetrated by a well bore, by providing a treatment fluid comprising a blend including a first amount of particulates having a first average particle size between about 3 mm and 2 cm and a sec...
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WO/2018/087521A1 |
A valve assembly (1) for use particularly in a deviated wellbore of an oil, gas or water well comprises a body (50) with an axis and first and second resiliently deformable seats (20, 25) to seat a valve closure member (10a) such as a ba...
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WO/2018/089034A1 |
A connector tool is used to direct fluids from a lifting assembly into a bore of a downhole tubular. The connector tool includes a body having an upper end and a lower end. The upper end is configured to be coupled to the lifting assembl...
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WO/2018/085286A1 |
A housing is integrated into a tubing string having a straight through passage and a lateral wall exist. Inside the passage is a flow responsive member with an applied preload force. Flow corresponding to a predetermined differential pre...
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WO/2018/085031A1 |
Treatment fluid is screened at a surface location to the same particle size that the mud is screened before delivery into treating equipment in the borehole. Solids or microgels that can form are captured before pumping into the borehole...
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WO/2018/084720A1 |
Circulation unit (1) adapted for continuous circulation of drilling fluid during drilling, wherein - an upper chamber (16) is defined upwards by an upper sealing element (133), and through a lower chamber (123) is defined downwards by a ...
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WO/2018/076066A1 |
A device (10) for facilitating the transport of an apparatus A along an upward or downward directed conduit or bore hole including a drill string (12) is described. The device (10) has a body (13) having an upper body portion (20) and a ...
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WO/2018/073249A1 |
The invention relates to a probe (10) for sampling a drilling fluid, comprising: a handle (12) extending along an axis (X-X); – a sampling head (14) located at a first end (20) of the handle (12), the head (14) defining an internal spa...
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WO/2018/075737A1 |
In general, a conductor removal system (1) comprises a conductor sectioning tower which can be used to automate lifting and landing of various conductor sections. In most embodiments, the conductor sectioning tower can selectively and co...
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WO/2018/074735A1 |
Disclosed are a method for automatically replacing a casing and a drill pipe, and a drilling machine comprising the same. The drilling machine comprises: a frame unit having at least two elongated frames which are slidably coupled to eac...
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