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Matches 1 - 50 out of 4,500

Document Document Title
WO/2018/009728A1
A method for drilling a borehole in an earthen formation using a drilling fluid includes selecting a lower pressure limit and an upper pressure limit for the drilling fluid at a drilling location in the borehole. In addition, the method ...  
WO/2018/009220A1
Fluid flow control systems are configured to resist erosion-corrosion and minimize wall shear stress during injection or production. A fluid flow control system includes a base pipe with an internal passageway. A housing is positioned ar...  
WO/2018/009437A1
A portion of a wellbore is drilled in a subterranean formation, using a drilling string (140) disposed within a casing string (130) and extending through a cement retainer (150) disposed within the casing string. The drilling string can ...  
WO/2018/000076A1
A system for use in the drilling of oil or gas wells in conjunction with a mud injection device, said mud injection device adapted to maintain fluid pressure control within the borehole of a well bore when operating a drillstring thereth...  
WO/2018/005567A1
A method includes pumping fluid into a drill string extending through a riser into a well. A managed pressure drilling system is operated to maintain a selected fluid pressure in the well between the well and the drill string. A fluid in...  
WO/2017/223463A1
An apparatus according to which a subterranean formation in which a wellbore extends is hydraulically fractured, the apparatus comprising first and second manifolds, the first manifold including first and second flow lines adapted to be ...  
WO/2017/223028A1
A method of dispersing asphaltenes to inhibit asphaltenes precipitation and/or deposition in a hydrocarbon is disclosed. An asphaltene dispersing agent is added to the hydrocarbon. The asphaltene dispersing agent is an ester of a mono-ca...  
WO/2017/220858A1
Drilling apparatus (1) comprises a drill and a dust removal pipe (2) for removing dust created in drilling from a proximity to a borehole. The drilling apparatus comprises a sampling apparatus (3) for collecting a research sample in the ...  
WO/2017/220098A1
A downhole tool and a drill string (18") comprising such a downhole tool is disclosed. The downhole tool comprises a housing having a first end and a second end, wherein a first fluid conduit (5) extends from an opening in the first end ...  
WO/2017/213513A1
A method for use with a managed pressure drilling (MPD) system, the system comprising a drill string having a drill bit, an annulus defined outside of the drill string, a mud pump for pumping mud down through the drill string and back up...  
WO/2017/213884A1
A dust control system includes a housing having an interior; a first inlet including a passage configured to pneumatically convey bulk material into the housing, the passage including an opening disposed within the interior of the housin...  
WO/2017/209730A1
Systems, methods, computer-readable media having computer programs, and electronic interfaces to detect and mitigate drill cuttings build-up in borehole drilling for hydrocarbon wells are provided. Embodiments include determining annular...  
WO/2017/203285A1
A method to manipulate a well comprising providing an apparatus (60) in a well (14) below a packer (22) or other annular sealing device, the apparatus comprising a container (68) having a volume of gas which is sealed at the surface and ...  
WO/2017/204947A1
A downhole pulsing apparatus having a tubular housing, a first valve assembly positioned in the housing, first and second turbine stages each comprising a stator and a rotor positioned in the housing below the first valve assembly and a ...  
WO/2017/200635A1
The present disclosure describes methods and systems for analyzing drilling fluid rheology at a drilling site. One method includes obtaining, from a wellbore drilling system implementing a wellbore drilling operation at a wellbore drilli...  
WO/2017/200548A1
The equivalent circulating density ("ECD") in a wellbore may be managed during a wellbore operation using ECD models that take into account the rheology of the wellbore fluid and the rotational speed of tubulars in the wellbore. For exam...  
WO/2017/197442A1
A fluid pulse apparatus for down hole drilling having a turbine assembly actuated by a flow of drilling fluid. The apparatus has a narrowed fluid flow section that cooperates with a piston that moves between an open a fluid flow restrict...  
WO/2017/196808A1
An apparatus for estimating properties of an earth formation includes a carrier connected to a drilling assembly, and a sensor assembly configured to measure at least one return flow parameter of a return fluid at a surface location, the...  
WO/2017/195175A2
A subsea drilling method for controlling the bottom hole annular pressure and downward injection rate during mud cap drilling operations from a mobile offshore drilling unit with a low pressure marine riser and subsea blowout preventer. ...  
WO/2017/195175A3
A subsea drilling method for controlling the bottom hole annular pressure and downward injection rate during mud cap drilling operations from a mobile offshore drilling unit with a low pressure marine riser and subsea blowout preventer. ...  
WO/2017/196372A1
A system includes a processor. The processor estimates a pattern of a flow of a mixture of drilling fluid and cuttings in an annulus of a wellbore. The flow is estimated as a stationary bed flow, a dispersed flow, or a transitional flow ...  
WO/2017/196862A1
In accordance with an embodiment of the disclosure, a method includes detecting a first parameter indicative of lateral movement of a top drive system with respect to a rotational axis of the top drive system with a first plurality of se...  
WO/2017/192625A1
A valve assembly includes a valve body having a fluid inlet and a fluid outlet. An operator cavity is within the valve body, and the valve body includes a valve operator socket surface. A valve operator is slidably coupled with the valve...  
WO/2017/192469A1
An apparatus and methods secure modular repair plugs to one another to repair different sized cells of a screen. A modular repair plug is configured to attach to another modular repair plug to create an extended modular repair plug. The ...  
WO/2017/192976A1
Various examples are provided related to improvements in generalized flow profile production. In one example, a method includes determining a downstream flow profile including a pressure profile and a velocity profile; fabricating a pres...  
WO/2017/192375A1
A method for evaluating a formation fluid includes the steps of drilling a borehole intersecting a formation with a drill string, circulating a drilling fluid in the wellbore, selectively liberating a formation fluid from the formation, ...  
WO/2017/187154A1
This invention relates to a method for reducing the pressure of fluid within a subsea equipment (1). The method comprises the steps of: (a) providing a pipe (255), (b) laying the pipe on the sea floor, (c) providing a connector (205), (d...  
WO/2017/190072A1
A vertical cuttings dryer (VCD) can be used to separate solid particulate from entrained liquid. In some examples, the VCD includes a screen mounted coaxially with an internal wiper housing that carriers a wiper sweeping out an annular s...  
WO/2017/189745A1
A method to recover drill beads from a drilling fluid used in a drilling operation comprising the steps of: directing a drilling fluid containing drill beads into a drill string positioned in a well bore, the drill beads having magnetic ...  
WO/2017/187368A1
A system and method are described for monitoring, controlling and securing a well (10) for the extraction of formation fluids. The system comprises a set of sensors (22) for detecting the bottom hole pressure and resistivity, composition...  
WO/2017/182949A1
A horizontal decanter centrifuge for enhanced recovery of drilling mud from drilling mud solids. Oilfield decanters will always suffer some drilling mud losses because they can only achieve a certain effectiveness with respect to solids ...  
WO/2017/184937A1
Methods and systems for automatically performing a sweep operation in a borehole penetrating an earth formation including conveying a drillstring through a borehole, the drillstring having one or more sensors located thereon, determining...  
WO/2017/184936A1
A system includes a mud return system. The mud return system includes a pressure exchanger (PX) configured to be installed in a body of water, to receive used drilling mud, to receive a second fluid, to utilize the second fluid to pressu...  
WO/2017/178399A1
The present invention relates to a hydraulic mass transport system (1) for transportation of drilling waste from or within drilling operations offshore and onshore, such as for instance oil and gas well drilling platforms or geothermal d...  
WO/2017/176276A1
Included are systems, apparatuses, and methods for operation of an electronic inflow control device without electrical connections. An example of a well system comprises an electric control line and an electronic inflow control device. T...  
WO/2017/172675A1
An apparatus, a system and a method for reinforcing a screen has a screen rod assembly extending from a first end to a second end. The screen rod assembly encloses an interior. A spring-loaded plunger is located in the interior and adjus...  
WO/2017/171778A1
A method for cleaning flowback water in oil or gas production operations includes passing the flowback water tangentially across a membrane arranged spirally around a collection pipe, and allowing water contained in the flowback water to...  
WO/2017/168171A1
A coupling apparatus (10) configured to be positioned between an upper end of a tubing string (12) and a top drive (64) is described. The apparatus (10) is configured to be held in position between the upper end of the tubing string (12)...  
WO/2017/167856A1
The invention relates to a boring method in which overburden in a shaft end of a drilled shaft (10) is created by a drill unit (90). The overburden is transferred by means of liquid into a container (30, 40) provided within the drilled s...  
WO/2017/168182A1
The invention provides an apparatus (10) for removing ferrous particles from an oil or gas process liquid or slurry and a method of use. In one aspect, the apparatus comprises a first inner cylindrical sheath (27) and a second outer cyli...  
WO/2017/173305A1
Aspects of magnetic gradient drilling are described. In one embodiment, a system includes a drill pipe, drilling fluid, and a magnetic assembly tool connected to or integrated with the drill pipe. Among other elements, the magnetic assem...  
WO/2017/171556A1
There is described a device (1) for directing a fluid flow in an annulus around a pipe string (10) in a horizontal or deviated well, the device comprising: - an orientation sensing member (2, 6) adapted to distinguish between the high-si...  
WO/2017/173070A2
A method for selecting drilling parameters for drilling a borehole penetrating the earth with a drill string. The method includes: measuring vibration-related amplitudes of the drill string during operation using one or more vibrations s...  
WO/2017/156620A1
An induction heater and materials processing apparatus and method using induction heating and rotary tumbling to heat or heat and dry materials such as drilling cuttings or waste material.  
WO/2017/160278A1
A system for controlling flow and access in multilateral completions is disclosed. The system includes a flow control sub having a single bore portion and a dual bore portion with a sleeve disposed therein. The flow control sub further i...  
WO/2017/160755A1
Embodiments of the present disclosure involve methods, devices, and systems for hydrating polymers using multiple mixing chambers (106A-106E). Adjacent mixing chambers are coupled using an under- over baffle, and each mixing chamber is g...  
WO/2017/156018A1
A system and a method that utilizes wet proppants when creating fracturing fluid by receiving wet fracturing sand at a surge tank, vibrating the wet fracturing sand located within the surge tank, liquefying the wet fracturing sand within...  
WO/2017/156538A1
A method and system for removing water from the near wellbore during scale inhibitor squeeze treatments.  
WO/2017/149494A1
A hermetically sealed horizontal washing decanter centrifuge for enhanced drilling fluid recovery and drilled solids washing. A process and apparatus for liquid phase -solid phase separation of oil based drilling mud-containing drill cut...  
WO/2017/149345A1
Methods for drilling a wellbore into a subterranean formation include preparing a drilling fluid and circulating the drilling fluid in the wellbore while drilling in the subterranean formation, forming a filtercake from the drilling flui...  

Matches 1 - 50 out of 4,500