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7627430 |
Method and system for managing information
A method for managing information associated with an oilfield operation of an oilfield, the oilfield having a subterranean formation with geological structures and reservoirs therein. The method...
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7624816 |
Configurable beacon and method
A monitoring system is used to monitor the location and orientation of a downhole tool assembly by detecting an output signal. The downhole tool assembly has a beacon assembly with one or more...
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7623961 |
Method for determining a track of a geographical trajectory
A method for determining a track of a geographical trajectory which has predetermined start and locations. A data collection device, which has onboard synchronized sensors, is moved between the...
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7607494 |
Earth penetrating apparatus and method employing radar imaging and rate sensing
An earth penetrating apparatus includes a cutting tool and a sensor housing. A radar unit, rate sensor unit, processor, and transmitter are provided in the sensor housing. An antenna arrangement is...
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7599797 |
Method of mitigating risk of well collision in a field
A method and system for mitigating risk of well collision in a field includes receiving an anti-collision standard exemption request containing a description of risk of collision between a subject...
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7588082 |
Downhole tool position sensing system
A downhole tool includes a mandrel, an inner sleeve, and an outer housing. The inner sleeve being rotatable relative to the outer housing and the mandrel being rotatable relative to the inner...
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7584808 |
Centralizer-based survey and navigation device and method
A Centralizer based Survey and Navigation (CSN) device designed to provide borehole or passageway position information. The CSN device can include one or more displacement sensors, centralizers, an...
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7584788 |
Control method for downhole steering tool
A method for determining a rate of change of longitudinal direction of a subterranean borehole includes positioning a downhole tool in a borehole, the tool including first and second longitudinally...
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7568532 |
Electromagnetically determining the relative location of a drill bit using a solenoid source installed on a steel casing
Electrically powered electromagnetic field source beacons installed in a reference well in combination with a down-hole measurement while drilling (MWD) electronic survey instrument near the drill...
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7562722 |
Method and apparatus for establishing the position of a sonde in a region using a single detector
An apparatus and method are described for tracking the position, orientation and/or guiding a sonde as it moves through the ground in a region. The sonde transmits an electromagnetic field received...
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7556105 |
Closed loop drilling assembly with electronics outside a non-rotating sleeve
A closed-loop drilling system utilizes a bottom hole assembly (“BHA”) having a steering assembly having a rotating member and a non-rotating sleeve disposed thereon. The non-rotating sleeve has...
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7546209 |
Formation dip geo-steering method
A method of drilling a well. The method includes calculating an estimated formation dip angle, wherein said estimated formation dip angle being based on offset well data, seismic data, core data,...
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7543658 |
Directional drilling control
Drilling means for directional drilling in a bore hole comprising a drill pipe and a drilling head, including a slippable clutch device linking the drill pipe and said drilling head such that...
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7540337 |
Adaptive apparatus, system and method for communicating with a downhole device
A system, apparatus and method for adaptive communication with a downhole device is disclosed. The instant invention proposes an adaptive system of communicating information from the surface of the...
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7532129 |
Apparatus and methods for conveying and operating analytical instrumentation within a well borehole
A borehole conveyance system that integrates wireline type downhole instrumentation into the drill string tripping operations that are typically performed in a borehole drilling operation to...
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7528946 |
System for detecting deflection of a boring tool
A system for monitoring deflection of a downhole tool assembly. The system comprises a beam source directing a beam at a receptor positioned proximate the downhole tool assembly. The receptor...
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7518950 |
Method and apparatus for downlink communication
The present invention provides a method and system in which signals from the surface are sent by changing flow rate of the drilling fluid supplied to the drill string during drilling of a wellbore....
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7510030 |
Elongated cross coil assembly for use in borehole location determination
A pair of elongated crossed coils is deployed in a first borehole and an instrument containing magnetic field sensors is deployed in a second borehole. The crossed coils are energized in quadrature...
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7510029 |
System for tracking and maintaining an on-grade horizontal borehole
A tracking receiver system is used to track the progress of a downhole tool along a subsurface path having a desired grade. The tracking receiver system is adapted to detect a reference line...
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7510027 |
Borehole drilling control system, method and apparatus
One embodiment includes an apparatus comprising a steerable well bore drilling tool having a main tool body. The steerable well bore drilling tool includes an inertial measurement unit to output a...
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7503403 |
Method and apparatus for enhancing directional accuracy and control using bottomhole assembly bending measurements
A system for drilling a well comprises a tubular member having a bottomhole assembly at a bottom end thereof disposed in a wellbore. A first sensor is disposed in the bottomhole assembly at a...
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7495445 |
Flux orientation locating in a drilling system
An above ground locator includes an apparatus for determining the strength of the locating signal at a selected point relative to the boring tool. The apparatus includes an antenna arrangement...
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7475741 |
Method and system for precise drilling guidance of twin wells
A method to guide a drilling path of a second well in proximity to a first well including: applying a time-varying electrical current to a conductive casing or liner of the first well. From the...
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7472761 |
Boring tool tracking fundamentally based on drill string length, pitch and roll
A boring tool moves having a pitch orientation, a yaw orientation and a roll orientation and is steerable underground using the roll orientation. A maximum drill string curvature is established for...
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7468679 |
Method and apparatus for mud pulse telemetry
An apparatus for mud pulse telemetry for transmitting information from a drill string positioned at a down hole location in a bore hole to a surface location, the drill string having a flow passage...
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7467672 |
Orientation tool
An orienting apparatus including at least one housing element configured to couple with a drill string; an actuator disposed inside the at least one housing element; a nozzle coupled to the...
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7426967 |
Rotary steerable tool including drill string rotation measurement apparatus
Aspects of this invention include a downhole tool (such as a steering tool) including first and second sensor sets for measuring substantially instantaneous drill string rotation rates. Each of the...
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7422076 |
Autoreaming systems and methods
Methods and systems for controlling movement of a bit of a drilling assembly during reaming of an already-drilled hole; the methods, in certain aspects, including determining a ream speed for...
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7413032 |
Self-controlled directional drilling systems and methods
System and method of controlling a trajectory of a wellbore comprises conveying a drilling assembly in the wellbore by a rotatable tubular member. The drilling assembly includes a drill bit at an...
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7404454 |
Bit face orientation control in drilling operations
A system for selectively orienting a bit at the end of a drillstring in a wellbore, the system, in certain aspects, having: motive apparatus for rotating a drillstring and a bit connected to an end...
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7403014 |
Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal
A boring tool is moved through the ground in a region which includes at least one electrically conductive in-ground line and which is subject to static magnetic fields including the magnetic field...
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7403013 |
Boring tool tracking/guiding system and method with unconstrained target location geometry
Tracking a boring tool is performed within an underground region using a locating signal. The boring tool is moved through the ground during a series of distance movements such that potential...
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7392858 |
Remote control for a drilling machine
A method and apparatus for remotely controlling a machine. A remote operator controls a tracking device including a signal system for selectively emitting a remote enable signal. The remote enable...
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7386942 |
Method and apparatus for mapping the trajectory in the subsurface of a borehole
An apparatus for determining the orientation of a borehole at a point along the borehole, includes a tiltmeter for measuring the inclination of the borehole relative to the vertical, a vector...
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7377333 |
Linear position sensor for downhole tools and method of use
Aspects of this invention include a downhole tool having first and second members disposed to translate substantially linearly with respect to one another. A magnet is deployed on the first member...
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7373993 |
System and method for locating and tracking a boring tool
A system for monitoring the position and orientation of a downhole tool assembly having multiple beacons. In a preferred embodiment the first and second beacons are supported by the downhole tool...
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7353613 |
Directional sensor system comprising a single axis sensor element positioned at multiple controlled orientations
A directional sensor system that incorporates a single axis sensor element that is manipulated to a plurality of orientations. The resulting responses of the sensor element at these locations are...
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7350594 |
System and method for tracking and communicating with a boring tool
A system for determining the location of and communicating with a downhole tool assembly. A tracker assembly comprises a vertical transmitting antenna, a plurality of receiving antennas, and a...
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7350590 |
Instrumentation for a downhole deployment valve
The present generally relates to apparatus and methods for instrumentation associated with a downhole deployment valve or a separate instrumentation sub. In one aspect, a DDV in a casing string is...
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7347280 |
Establishing positions of locating field detectors and path mapping in underground boring tool applications
Specific apparatus and associated methods are described for use in establishing the positions of locating field detectors and for path mapping within a region for the purpose of tracking and/or...
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7346455 |
Wellbore evaluation system and method
A wellbore evaluation system evaluates mechanical wear and corrosion to components of a well system including a production tubing string positionable in a well and a sucker rod string movable...
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7331409 |
Configurable beacon and method
A monitoring system is used to monitor the location and orientation of a downhole tool assembly by detecting an output signal. The downhole tool assembly has a beacon assembly with one or more...
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7327144 |
Multi-frequency boring tool locating system and method
Arrangements, apparatus and associated methods are described for use in a multi-frequency boring tool locating system. The boring tool includes a transmitter for transmitting a locating signal at...
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7322416 |
Methods of servicing a well bore using self-activating downhole tool
A method of servicing a well bore comprises deploying into the well bore a zonal isolation device operable to self-set at a sensed location, and self-setting the zonal isolation device to hold at...
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7320372 |
Jet assisted drilling method
The drill string is fitted for drilling activity in the formation expected, including a jet nozzle equipped drill head, and a near bit kick sub. The drill string is deflected to change the...
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7306054 |
Method for improving drilling depth measurements
A method for determining a depth of a wellbore 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...
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7298287 |
Transmitting data through a downhole environment
The invention is a system for transmitting data through downhole environments comprising a downhole network integrated into a downhole tool string. The downhole tool string comprises a plurality of...
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7287337 |
Pitch sensing in drilling machines
A pitch sensor tool for a stem boring or drilling machine, for example a sub-surface directional drilling machine having a stem and a drilling head. The pitch sensor tool includes a generally...
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7270198 |
Orienter for drilling tool assembly and method
The disclosed orienter for use in drilling a subterranean borehole enables use of the torque provided by the drilling motor to both orient the rotating drill bit for drilling an arcuate section of...
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7267184 |
Modular housing for a rotary steerable tool
According to one embodiment of the invention, a rotary steerable tool includes a drive shaft configured to be coupled to a drill string at an upper end thereof and configured to be coupled to a...
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