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WO/2005/033468A1 |
Method of impact loosening of thread joints at rock drilling, whereby vibrations from a drill string (1) are sensed at the same time as a rock drilling machine (2) exerts the drill string (1) to impacts without feeding the drill string (...
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WO/2005/033907A2 |
The invention is directed to incrementing a well service rig (20) in such a manner that activity-based and/or time-based data (Fig. 1A, 1B) for the well site is recorded. The acquired data (82) can be transmitted via wired, wireless, sat...
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WO/2005/017315A1 |
This invention provides a measurement-while-drilling (MWD) downhole assembly (90) for use in drilling boreholes which utilizes directional formation evaluation devices on a rotating assembly in conjunction with toolface orientation senso...
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WO/2005/012688A1 |
According to one embodiment, a system (10010) for accessing a subterranean zone from the surface includes a well bore (10012) extending from the surface (10014) to the subterranean zone (10200), and a well bore pattern (10060) connected ...
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WO/2005/008021A1 |
In one aspect, the invention provides a method for modeling the wear of a fixed cutter bit drilling earth formations. A method for determining wear of a fixed cutter drill bit includes simulating the fixed cutter drill bit drilling an ea...
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WO/2005/008022A1 |
In one aspect, the invention provides a method for modeling the performance of a fixed cutter bit drilling an earth formation. In one embodiment, the method includes selecting a drill bit and an earth formation to be represented as drill...
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WO/2005/008019A1 |
A method for designing a drilling tool assembly, having a drill bit disposed at one end includes defining initial drilling tool assembly design parameters; calculating a dynamic response of the drilling tool assembly; adjusting a value o...
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WO/2005/008020A1 |
In one aspect, the invention provides a method for modeling the dynamic performance of a fixed cutter bit drilling earth formations. In one embodiment, the method includes selecting a drill bit and an earth formation to be represented as...
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WO/2005/008017A2 |
In one aspect the invention comprises an instrumented drill head for intended use with a drilling machine including a drilling element, such as a drill bit. The drill head (10) includes a case (11) with a rotatable chuck (12) of the dril...
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WO/2005/002801A1 |
A method of generating a stress pulse, and an impact device. In the method, pressure fluid is fed as pressure pulses to a working chamber residing between the frame of the impact device and a tool such that the resulting force presses th...
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WO/2004/104358A2 |
A method of and system for directional drilling alternate between rotary drilling and sliding with the bit remaining in continuous contact with the bottom of the bore hole.
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WO/2004/101944A2 |
A method of and system for directional drilling reduces the friction between the drill string (35) and the well bore (33). A downhole drilling motor (41) is connected to a drilling rig (11) at the surface by a drill string (35). The dril...
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WO/2004/099556A1 |
A system for drilling a substantially horizontal borehole, comprises a rotating drill string (8) extending from a surface system to a location in the horizontal borehole, the drill string having a drill bit (17) at a bottom end. A rotary...
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WO2004044369B1 |
A formation pressure testing while drilling device on a bottomhole assembly (21) makes measurements of fluid pressure during drilling of a borehole (15). Based on the pressure measurements, drilling direction can be altered to maintain t...
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WO/2004/097172A1 |
A drilling system includes a pressure sensor disposed on a drill string in the wellbore, the sensor responsive to pressure of a drilling fluid disposed in an annular space between a wall of the wellbore and the drill string, and a proces...
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WO/2004/094768A2 |
A drill string design methodology which utilizes a "comparative approach" in the selection of drill string components The comparative approach in accordance with the present invention can lead to dramatic reductions in fatigue-related pr...
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WO/2004/090286A1 |
The invention relates to a method and a system for managing information relating to boreholes. The invention further relates to an identifier utilized by the method and the system. An identifier (5) which includes machine-readable inform...
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WO/2004/090285A1 |
A drilling control system provides, in one aspect, advisory actions for optimal drilling. Such a system or model utilizes downhole dynamics data and surface drilling parameters, to produce drilling models used to provide to a human opera...
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WO/2004/083970A2 |
A distributed control system permits local or remote control of equipment. The distributed control system provides a communication bridge through a local control panel between a non-real-time network, such as an Ethernet, and a real-time...
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WO/2004/074623A2 |
A system that controls a back reaming operation of a drilling rig is provided that includes a hoisting system that moves a drill pipe during a back reaming operation at a hoisting speed and a hoisting torque. The hoisting system comprise...
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WO/2004/074630A1 |
Methods and devices for sensing operating conditions associated with downhole, non-drilling operations, including, fishing and retrieval operations as well as underreaming or casing cutting operations and the like. A condition sensing de...
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WO/2004/074627A1 |
A drilling system for drilling a bore hole into a subterranean earth formation, the drilling system comprising: a drill string (112) extending into the bore hole, whereby an annular space is formed between the drill sting and the bore ho...
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WO/2004/065761A1 |
The invention relates to a hydraulic system for mining equipment and to a method of adjusting the power of a rock drill machine. At least one mining actuator (13, 14, 15) used for detaching rock is connected to a dedicated separate hydra...
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WO/2004/065749A2 |
A method and apparatus for controlling a drilling operation and the rotation of the BHA, or bottom hole tool assembly mounted on the drill string (42). With the steps of using the apparatus of an integrated closed-loop rig-site analysis ...
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WO/2004/063525A1 |
Method and device to increase the feed speed of a drill bit (2) and its associated drilling device (1) when drilling through tubulars (6, 8, 10) located within one another where in the annuli (12, 14) created between the tubulars (6, 8, ...
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WO/2004/061258A2 |
A method of and system for directional drilling reduces the friction between the drill string and the well bore. A downhole drilling motor is connected to the surface by a drill string. The drilling motor is oriented at a selected tool f...
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WO/2004/059122A1 |
A method of evaluating changes for a wellbore interval involves acquiring a first log data from a logging sensor during a first pass over the wellbore interval, acquiring a second log data from the logging sensor during a second pass ove...
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WO2004001352B1 |
The invention comprises wireless low frequency downhole detection, monitoring and communication capable of operation at greater depths than prior methods and capable of detection with standard equipment and/or standard data, thereby impr...
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WO/2004/059124A1 |
A method and system for averting or mitigating undesirable drilling events during a drilling process is disclosed. The state of the drilling rig is detected, preferably automatically, based on surface and/or downhole measurement data. On...
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WO/2004/059123A1 |
A method and system is disclosed for automatically detecting the state of a drilling rig during the drilling process of a wellbore. Two or more, but preferably four independent input data channels are received, each input data channel re...
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WO/2004/055325A1 |
The position of an underground drilling head is represented on a visual display unit (1) by way of separate displays of two planes, typically a plan view (2) and a sectional side view (6). A trajectory line (5, 7) representing the path o...
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WO2003071091A9 |
A system and method for controlling formation pressures during drilling of a subterranean formation utilizing a selectively fluid backpressure system in which fluid is pumped down the drilling fluid return system in response to detected ...
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WO/2004/048249A1 |
The technology disclosed herein provides a system that calculates traveling block position, traveling block velocity and weight supported by the traveling block (38). The system takes all these parameters into consideration when slowing ...
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WO/2004/042192A1 |
The invention relates to a method for controlling at least two hydraulic actuators, to a monitoring valve and a rock drilling apparatus. The monitoring valve (10) is connected to the input channel of a first actuator through a sensing ch...
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WO/2004/042193A1 |
The invention relates to a method for controlling rock drilling, and a rock drilling arrangement. At least one feed channel (37) of a feed actuator (3, 33) is pro-vided with a restrictor (46), which causes a pressure drop if the penetrat...
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WO/2004/020778A1 |
An automated method and system for recognizing a well control event includes determining a state of drilling operations. When drilling operations are in a circulating state, a benchmark for a relative flow value. The relative flow value ...
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WO/2004/012040A2 |
A system and method for controlling operation of a drilling rig (200) having a control management system (102) with control system programming with at least one resource module (109) having at least one operating model having at least on...
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WO/2004/011775A2 |
This invention provides a measurement-while-drilling (MWD) downhole assembly for use in drilling boreholes which utilizes directional formation evaluation devices on a rotating assembly in conjunction with toolface orientation sensors. T...
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WO/2003/100216A1 |
An automated method and system for determining the state of a drilling or other suitable well operations includes storing a plurality of states for the well operation. Mechanical and hydraulic data is received for the well operation. Bas...
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WO/2003/097989A1 |
A closed-loop drilling system utilises a bottom hole assembly (“BHA”) having a steering assembly (200) having a rotating member and a non-rotating sleeve (220) disposed thereon. The sleeve has a plurality of expandable force applicat...
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WO/2003/089760A1 |
Telemetry system for the bi-directional communication of data between a well point and a terminal unit situated on the surface, which can be used inside drilling or production strings, comprising: data transmission and optional reception...
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WO/2003/089751A2 |
A method for determining a depth of a wellbore is disclosed. The method includes determining change in a suspended weight of a drill string from a first time to a second time. A change in axial position of the upper portion of the drill ...
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WO/2003/089758A1 |
A method is disclosed for identifying potential drilling hazards in a wellbore, including measuring a drilling parameter, correlating the parameter to depth in the wellbore at which selected components of a drill string pass, determining...
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WO/2003/089759A1 |
A method is disclosed for determining movement mode in a drill string (32). The method includes measuring lateral acceleration of the drill string, determining lateral position of the drill string from the acceleration measurements, and ...
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WO/2003/072907A1 |
A method and apparatus for performing well planning and design includes performing a general-level design. The general-level design involves generating a proposed well configuration based on inputs from a user. The proposed configuration...
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WO/2003/071097A1 |
An acoustic position measurement system (23) and method includes an acoustic transmitter operable to transmit a sound wave into an underground well bore (18) in a target formation (26). The sound wave is configured to reflect from a boun...
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WO/2003/071096A1 |
The invention relates to a rock drilling arrangement and a method and program for controlling rock drilling on the basis of specific energy consumption. The specific energy of drilling is the quantity of energy used per a unit of length ...
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WO/2003/064812A1 |
A system, device and method are described for controlling development of an oil or gas well. Data from the well is analysed to provide control signals for the well with the additional feature of cleaning the data in conjunction with the ...
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WO/2003/062598A1 |
An autonomous system for performing a well operation at a predetermined location in a wellbore comprises a tool string having at least one well tool, a motive device for traversing the wellbore, and a control system adapted to position t...
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WO/2003/058030A1 |
The present invention relates to a system, for transmission of data between drilling equipment (20) and remote location means arranged to be connected to a communication system (24; 41). The system comprises (first) server means (22), in...
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