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WO/2012/092091A2 |
A remote actuation tool equipped with an intermediate volumetric mechanism for enhanced tool durability in high pressure differential downhole environments. Valve segments of the tool are actuated by power available due to a pressure dif...
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WO/2012/087892A2 |
Methods and apparatus for using a fluid within a subterranean formation comprising forming a fluid comprising a fluid additive, introducing the fluid to a formation, observing a temperature, and controlling a rate of fluid introduction u...
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WO/2012/087864A2 |
Disclosed is a method in which subterranean formation data such as, but not limited to, pressure, mobility or permeability data is acquired while drilling and stored. The data is utilized to improve the design, the progress, and the eval...
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WO/2012/084886A1 |
A method for controlling vibrations in a drilling system, the drilling system including an elongate body extending from surface into a borehole formed in an earth formation, and an associated drive system for driving the elongate body, t...
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WO/2012/080812A2 |
Optimising the operation of a hydraulically powered rotor and stator driven drill as it drills a wellbore into the earth is described. Drilling optimization is provided measuring a first set of rotor and stator operating parameters inclu...
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WO/2012/080819A2 |
The invention provides a method of optimising the rate of penetration of a hydraulically or pneumatically powered rotor and stator driven drill as it drills a wellbore into the earth, the method comprising: (a) measuring a first set of r...
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WO/2012/083016A2 |
A methodology and apparatus for cutting shape(s) or profile(s) through well tubular(s), or for completely circumferentially severing through multiple tubulars, including all tubing, pipe, casing, liners, cement, other material encountere...
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WO/2012/078406A2 |
A method and system to aid and/or train well control personnel by measuring the actual hydraulic delay and pressure attenuation of operator choke changes during well control operations or simulations. This provides the choke operator wit...
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WO/2012/072870A1 |
When excavating a rock cavern one round at a time by a rock drilling rig (1) comprising at least one drilling boom (3) and at least one drilling unit (4) arranged in the drilling boom (3), holes (21) of a round are drilled in accordance ...
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WO/2012/064944A2 |
A method of operating a drill string includes receiving signals indicative of rotation of a bottom hole assembly (BHA) of the drill string; receiving signals indicative of the torque experience by the BHA; determining from the received s...
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WO/2012/064626A2 |
Apparatus and method for automated drilling of a borehole in subsurface formations. In one embodiment, a method includes selecting at least one control variable. A drilling performance objective having a value that is influenced by drill...
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WO/2012/064728A2 |
In an aspect, a drilling apparatus is provided, wherein the apparatus includes a drill string to be disposed in a borehole. The drill string includes a tubular, a borehole assembly coupled to the tubular and a drill bit disposed at an en...
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WO/2012/058435A2 |
A system includes a control unit including a model of the system that includes model parameters and operational conditions. The system also includes an assembly that includes one or more sensor modules and a second processor, the second ...
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WO/2012/047837A2 |
An expandable apparatus may comprise a tubular body, a valve piston and a push sleeve. The tubular body may comprise a fluid passageway extending therethrough, and the valve piston may be disposed within the tubular body, the valve pisto...
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WO/2012/047863A2 |
An expandable apparatus may comprise a tubular body, a valve piston and a push sleeve. The tubular body may comprise a fluid passageway extending therethrough, and the valve piston may be disposed within the tubular body, the valve pisto...
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WO/2012/041745A1 |
Control device (100) controlling a drilling operation and methods by which the dynamics of the continuum in question can be divided into superimposed waves, of which the wave traveling in the direction of the actuator and/or drive (10) i...
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WO/2012/039666A1 |
A method for monitoring down-the-hole percussion drilling, wherein a down-the-hole hammer (8) is supplied with percussion and flushing fluid flow and the down-the-hole hammer is subjected to rotational force and to feed force. Percussion...
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WO/2012/031311A1 |
A rock drill including a first control valve (80), a first fluid circuit (70) suppliable with fluid via the first control valve (80), an impact piston (66) driveable by fluid pressure in the first fluid circuit, a plurality of first flui...
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WO/2012/026873A1 |
The present invention relates to a method for controlling a power source (9) at a rock drilling apparatus, said power source (9) being arranged to drive at least a first load (8,10,15) at the rock drilling apparatus, wherein said first l...
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WO/2012/027668A1 |
In one aspect, an apparatus for use downhole is disclosed that in one configuration includes a downhole device configured to be in an active position and an inactive position and an actuation device that includes: a housing including an ...
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WO/2012/026875A1 |
The present invention relates to a control of a compressor (8) at a rock drilling apparatus, said rock drilling apparatus including a power source for driving a compressor (8) at a rock drilling process, said compressor (8) being arrange...
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WO/2012/027637A1 |
A downhole magnetic latching tool includes at least one permanent magnet deployed on a non-magnetic tool body. A magnetically permeable housing is deployed about the permanent magnet. The magnetic latching tool provides an attractive mag...
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WO/2012/023961A1 |
The present invention relates to a novel method of mining underground coal and recovering coal seam gas, the method including locating a seam of coal; digging a mine shaft to reach the seam of coal; constructing a ventilated underground ...
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WO/2012/012830A1 |
A drilling log data logger (10), and system incorporating the same, has means (14-40) to receive drilling event related data, electronic storage means to store said input data, and output means (12, 42) to output said data on demand. A r...
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WO/2012/009788A1 |
A bottom-hole assembly for directional drilling incorporates a torque generator with a drive shaft connected to a drill string. The torque generator generates a torque that counters a reactive torque when a drill bit of the bottom- hole ...
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WO/2012/003329A2 |
Systems and methods compress data and control data compression in borehole communication. The systems and methods convert original data collected by a sensor from a first domain into a second domain, wherein the original data is associat...
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WO/2011/156798A2 |
Borehole diameter enlargement occurs while drilling, circulating, reaming, and/or cleaning the borehole, and such borehole diameter enlargements can be detrimental to proper tripping of a drillstring or running of a casing string. Method...
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WO/2011/149478A1 |
Systems and methods for managing fuel and electrical power supplied to a drilling rig during all phases of a drilling operation. The system includes a power source in electrical communication with the drilling rig, and an engine manageme...
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WO/2011/140625A1 |
In an apparatus of the type comprising a first assembly, a second assembly, an orientable rotatable connection between the first assembly and the second assembly, and a control device associated with the orientable rotatable connection, ...
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WO/2011/139497A1 |
Apparatuses and methods for adjusting weight-on-bit/torque-on-bit sensor bias in a drill bit. The apparatus may include a bit adjustment device disposed at least partially in a cavity in a bit shank. The bit adjustment device includes el...
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WO/2011/138511A1 |
The invention relates to a method and apparatus for opening threaded joints of drilling equipment (6) by striking the drilling equipment (6) with the percussion device of a rock drilling rig (1 ) and by measuring vibration originating fr...
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WO/2011/138510A1 |
The invention relates to a method and an apparatus for detecting tightness of threaded joints of drill rods when unfastening at least one threaded joint of the drilling equipment (6) by impacting the drilling equipment (6) with a percuss...
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WO/2011/133567A1 |
Air compressor systems, upgrade kits, computer readable medium, and methods for controlling an air compressor for improved performance. The methods may include receiving a working air requirement; determining an estimated air pressure of...
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WO/2011/127433A2 |
A control and instrumentation system utilizes a subsea data hub to establish closed loop of between subsea production system components and a surface located controller. The control and instrumentation system can be utilize to operationa...
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WO/2011/120086A1 |
A process for real-time classification of materials, the process including: conducting laser induced breakdown spectroscopy on the material (LIBS), wherein at least one second laser pulse is directed to the plume so as to selectively ene...
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WO/2011/103730A1 |
A control system for rock drill includes a position sensor (11) for detecting the depth position of a drill bucket, a pressure sensor (12) for detecting the pressure of drill bucket, a rotary force sensor (13) for detecting the rotary fo...
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WO/2011/104441A1 |
The invention relates to a rock drilling rig, a method for rock drilling and a control system of a rock drilling rig. The rock drilling rig (1) comprises a drilling unit (6) for drilling drill holes (21) as a drill hole pattern. The loca...
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WO/2011/104440A1 |
The invention relates to a method of presenting positioning information on a drilling unit of a rock drilling rig when drilling drill holes as a fan-like pattern. Further, the invention relates to a user interface and a rock drilling rig...
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WO/2011/104504A2 |
The present invention provides a method for optimizing rate of penetration when drilling into a geological formation comprising the steps of: gathering real-time PWD (pressure while drilling) data; acquiring modeled ECD (equivalent circu...
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WO/2011/091368A2 |
A system and method for performing an adaptive drilling operation is provided. The method involves obtaining data prior to drilling, constructing a base model with a base model unit from data obtained prior to drilling, constructing an o...
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WO/2011/091055A1 |
The present application is directed to a system providing automatic and manual control of a brake lever on band brake drawworks of a wellbore drilling rig. The system comprises a pneumatic cylinder attached to the brake lever; and a cont...
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WO/2011/083399A2 |
Methods and apparatus to process measurements associated with drilling operations are described. An example method of modifying processing results during a subterranean formation drilling operation includes identifying a plurality of par...
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WO/2011/084153A1 |
A well control method can include removing from a wellbore an undesired influx from a formation into the wellbore, determining a desired pressure profile in real time with a hydraulics model, and automatically operating a flow choking de...
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WO/2011/085286A2 |
A downhole tool (100) includes a downlinking system (120) deployed in a downhole tool body (110) having an internal through bore (105). The downlinking system (120) includes a differential pressure transducer (130) configured to measured...
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WO/2011/081723A2 |
A method of maintaining a desired downhole pressure during a drilling operation can include measuring a parameter with a sensor, communicating actual parameter values from the sensor to a predictive device, training the predictive device...
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WO/2011/054210A1 |
A tool-pusher console of a drilling simulator includes a case and an interior control board. A front control panel (1) is provided on the front surface of the case. A side control panel (45) is provided on the side of the case. A pressur...
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WO/2011/055180A2 |
A drive mechanism is described for moving/controlling objects/mechanisms/systems coupled with a drillstring and/or pipe. The drive mechanism may be axially arranged on a drillstring or pipe, compact, capable of fine control and deliverin...
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WO/2011/054209A1 |
A BOP console of a drilling simulator includes a case and an interior control board. A control panel (1) is provided on the front surface of the case. An energy accumulator pressure gauge (2), an annular oil pressure gauge (3) of the BOP...
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WO/2011/050500A1 |
A multi-level refined throttle manifold and an automatic control system are provided. The multi-level refined throttle manifold system is composed of multiple plate valves and a throttle valve that are connected in parallel. The automati...
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WO/2011/043764A1 |
Well pressure control is integrated in real time with geomechanics determinations made during drilling. A well drilling method includes updating determinations of properties of a formation surrounding a wellbore in real time as the wellb...
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