Matches 1 - 50 out of 303 1 2 3 4 5 6 7 >


Match Document Document Title
US20110031018 HORIZONTAL DRILLING SYSTEM  
A horizontal direction drilling system comprises a power pack coupled to a source of compressed air and a water reservoir and forms a mixture of compressed air, water, and oil. The horizontal...
US20130180779 Wellbore Conditioning System  
A wellbore conditioning system is disclosed. The system comprises at least one shaft and at least two eccentric unilateral reamers, wherein the unilateral reamers are positioned at a predetermined...
US20150184503 Turbine Drilling Assembly with Near Drilling Bit Sensors  
A turbine drilling assembly can include a turbine drilling motor having an upper drill string connector, and an inclination sensor positioned 10 in the turbine drilling assembly below the upper...
US20140338977 BOTTOMHOLE ASSEMBLY DESIGN METHOD TO REDUCE ROTATIONAL LOADS  
A method for estimating a location for disposing a tool in a drill tubular having a drill bit includes performing a modal analysis of the drill tubular to determine natural eigenfrequencies and...
US20120018218 Method and apparatus for directional drilling  
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...
US20120103687 Redundant Position Reference System for Multilateral Exit Construction and Method for Use of Same  
A position reference system (100) for multilateral exit construction in a wellbore (32). The system (100) includes a casing string (34) having a window joint (106) and a pair of latch couplings...
US20150068805 LINER DRILLING BOTTOM HOLE ASSEMBLY LOCATOR SYSTEM AND METHOD  
A system and method for locating a bottom hole assembly during liner drilling. The system and method employ a liner and a drill string. The liner may include a stop sub. The drill string may...
US20130126240 METHOD FOR SALT AND CROSS-BED PROXIMITY DETECTION USING DEEP DIRECTIONAL ELECTROMAGNETIC MEASUREMENTS WHILE DRILLING  
A method for drilling a wellbore proximate a salt structure includes measuring formation resistivity azimuthally. A map of spatial distribution of resistivity is determined from the azimuthal...
US20130020129 METHODS FOR DIRECTING VERTICAL DRILLING  
Methods allowing precise directional drilling are provided. Such methods include use of directional drilling equipment which include a drill string with a hollow bottom rod connected to a boring...
US20140131102 SYSTEM AND METHOD FOR DETERMINING INCREMENTAL PROGRESSION BETWEEN SURVEY POINTS WHILE DRILLING  
A system and method for surface steerable drilling are provided. In one example, the system receives toolface information for a bottom hole assembly (BHA) and non-survey sensor information...
US20080230270 Arrangement for Positioning Rock Drilling Rig on Drilling Site  
A method for positioning a rock drilling rig to a drilling site and a rock drilling rig. In positioning the rock drilling rig is driven to the positioning station such that its carrier is at...
US20130153297 Adjustable Bent Drilling Tool Having in situ Drilling Direction Change Capability  
An adjustable bent drilling tool capable of changing in situ drilling direction to facilitate horizontal drilling. The drilling tool may be controlled from the surface and eliminates the need to...
US20090314546 In-drilling alignment  
To limit the growth of errors of an inertial navigation system for measurement-while-drilling, in-drilling alignment methods can be used. A pneumatics-based design of an apparatus for an...
US20150000979 SYSTEM AND METHOD FOR DETECTING UNDERGROUND CROSS-BORES  
A system for detecting an underground cross-bore in accordance with one exemplary embodiment includes a mechanical sensing device attached to an underground travel element to form a combination...
US20150167392 Determining Drilling State for Trajectory Control  
Methods are provided for determining the drilling state of a downhole tool and controlling the trajectory of the downhole tool in a wellbore during a drilling operation. One method may include...
US20100307825 EXCAVATION DEVICE AND PROFILE ANALYSES OF THE EXCAVATION ITSELF AND ASSOCIATED METHOD  
An excavation device (1) and profile analysis of the excavation includes a device (1) realizing excavations of prismatic shape and having a frame (3) and a plurality of excavation wheels (2). The...
US20150167453 SYSTEM AND METHOD FOR DEFINING PERMISSIBLE BOREHOLE CURVATURE  
A method for defining a permissible borehole curvature includes determining curvature characteristics of at least one of a borehole and a downhole assembly in the borehole and calculating an...
US20110079431 SYSTEM AND METHOD FOR DENSELY PACKING WELLS USING MAGNETIC RANGING WHILE DRILLING  
Systems and methods for drilling a plurality of densely packed wells to efficiently utilize available drilling space. In accordance with one embodiment, a method of drilling densely packed wells...
US20090038851 SPINDLE FOR MUD PULSE TELEMETRY APPLICATIONS  
A spindle for a mud pulse telemetry tool includes a seal section having an outer surface for contacting a lip seal of a spindle housing in which the spindle is mounted; a top section attachable to...
US20130000980 System and Method for Determining Soil Characteristics and Drillstring Instability During Horizontal Directional Drilling  
Disclosed is a system and method for horizontal directional drilling (HDD). The system and method utilize predictive algorithms to both characterize the soil within the borehole and to quantify...
US20140353036 Apparatus and Method for Measuring Inclination in Subsea Running, Setting, and Testing Tools  
A system for jetting a borehole in a seafloor, the system including a tubular, and a jetting tool inserted into the tubular and having an end from which fluid is selectively discharged to excavate...
US20120126817 DOWNHOLE SURVEYING UTILIZING MULTIPLE MEASUREMENTS  
Certain embodiments described herein provide a measure of the misalignment of multiple acceleration sensors mounted in the downhole portion of a drill string. In certain embodiments, the measure...
US20150252623 DIRECTIONAL DRILLING INSTRUMENT  
One aspect of the disclosed subject matter is seen in a directional drilling instrument that comprises a chassis, a first sensor and a second sensor. The chassis has a longitudinal axis, and the...
US20090260878 METHOD FOR DRILLING WELLS IN CLOSE RELATIONSHIP USING MAGNETIC RANGING WHILE DRILLING  
Methods for drilling wells using magnetic ranging while drilling to position the wells with respect to one another are provided. In accordance with one embodiment, a method of drilling a well...
US20080210469 ANGLE DRILLING DEVICE  
In an angle drilling device for introducing or expanding wellbores that are inclined in relation to the horizontal, an angle-adjustable bore rig for a movable feed drive is arranged on a base...
US20090120691 SYSTEMS AND METHODS FOR GUIDING THE DRILLING OF A HORIZONTAL WELL  
System and methods for guiding the drilling of a horizontal well are disclosed. A current is provided in at least one conductor positioned in a target vertical well. A magnetic field generated by...
US20080110676 Rock Drilling Device and Drill Rig Incorporating A Device For Measuring The Location Of The Drilling Machine  
This invention relates to a rock drilling device comprising a feed beam (4), which has a drill end (41) from which the drill point protrudes at drilling and a rear end (42) opposite said drill...
US20090301779 EARTH BORING DEVICE  
An earth boring device for forming horizontally extending bore holes beneath the surface of the earth and installing a conduit therein without substantially disturbing the surface of the earth is...
US20140102795 Attitude Reference for Tieback/Overlap Processing  
A method for calculating orientation changes within a borehole using a gyro sensor to detect angular deflection rates in an attitude reference interval as a MWD system is moved from a first to a...
US20120255780 METHOD AND APPARATUS FOR CALCULATING AND CORRECTING FOR DIRECTIONAL DRILLING TOOL FACE OFFSETS  
A method for correcting for tool face offset in directional drilling components, namely between a directional sensor reference point and a high side of a bent sub. Graduated markings applied on an...
US20090090555 AUTOMATED DIRECTIONAL DRILLING APPARATUS AND METHODS  
Methods and systems for drilling to a target location include a control system that receives an input comprising a planned drilling path to a target location and determines a projected location of...
US20090008150 Drilling System  
A drilling system for drilling a borehole in an underground formation, comprises a rotary drill bit, a drilling drive mechanism that is capable of applying both rotating the drill bit and applying...
US20150226004 TECHNIQUE TO VERIFY UNDERGROUND TARGETS UTILIZING VIRTUAL REALITY IMAGING AND CONTROLLED EXCAVATION  
A system and method for locating and verifying a position of an underground target utilizes a virtual reality display to guide a cutting probe to the target. Initial coordinates of the target may...
US20070163806 Underground boring machine and method for controlling underground boring  
A method and system for controlling a horizontal directional drilling machine having a boring tool. A rate of rotation and a rate of thrust are selected by an operator. Controls allow an automatic...
US20090266610 DETERMINATION OF AZIMUTHAL OFFSET AND RADIUS OF CURVATURE IN A DEVIATED BOREHOLE USING PERIODIC DRILL STRING TORQUE MEASUREMENTS  
Methods and apparatus for determining the direction of borehole azimuthal offset and the borehole radius of curvature. Rotation rate of a borehole assembly is measured and mathematically converted...
US20080251292 Device for Monitoring a Drilling or Coring Operation and Installation Comprising Such a Device  
Device comprising equipment for measuring parameters of a drilling or coring operation by means of a drillbit fixed to the end of a drill string, measurement equipment (7) being housed in a...
US20140353034 Devices and Methods for Horizontal Directional Drilling with a Boring Tool Library  
Various embodiments are directed to a method and apparatus for horizontal directional drilling with a tool library. Various methods include storing a plurality of operational tool profiles in...
US20120080228 STATUS INDICATORS FOR USE IN EARTH-BORING TOOLS HAVING EXPANDABLE MEMBERS AND METHODS OF MAKING AND USING SUCH STATUS INDICATORS AND EARTH-BORING TOOLS  
A status indicator for determining a position of an extendable member in an expandable apparatus. The status indicator is configured to decrease a cross-sectional area of a portion of a fluid path...
US20140131101 SYSTEMS AND METHODS FOR DETERMINING ENHANCED EQUIVALENT CIRCULATING DENSITY AND INTERVAL SOLIDS CONCENTRATION IN A WELL SYSTEM USING MULTIPLE SENSORS  
Multiple sensors on a drill string can be utilized to perform equivalent circulation density (ECD) analysis. By utilizing multiple ones of the sensors, the pressure drop in each section of the...
US20120061141 METHOD FOR FINDING AND RE-ENTERING A LATERAL BORE IN A MULTI-LATERAL WELL  
A system and method of locating and entering a lateral wellbore that extends from a primary wellbore are provided. The system may include a coiled tubing, jointed tubular, continuous rod, and/or...
US20110147082 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...
US20110238220 APPARATUS AND SYSTEM FOR WELL PLACEMENT AND RESERVOIR CHARACTERIZATION  
A resistivity array having a modular design includes a transmitter module with at least one antenna, wherein the transmitter module has connectors on both ends adapted to connect with other...
US20120292110 SYSTEM AND APPARATUS FOR MODELING THE BEHAVIOR OF A DRILLING ASSEMBLY  
A method for drilling a borehole includes obtaining, while drilling the borehole, sensor data for the drilling assembly, analyzing, while drilling the borehole, the sensor data using a drilling...
US20070029112 Bidirectional drill string telemetry for measuring and drilling control  
The disclosure has application for use in conjunction with an operation of drilling an earth borehole using: a drilling rig, a drill string having its generally upper end mechanically coupleable...
US20130341092 APPARATUS AND METHOD FOR DRILLING A WELL  
A system for drilling at least one well of interest proximate a reference well comprises at least one sensor in a drill string in the at least one well of interest to detect at least one parameter...
US20110048702 INTERLEAVED ARM SYSTEM FOR LOGGING A WELLBORE AND METHOD FOR USING SAME  
A logging tool, system and method for logging a wellbore are presented. The logging tool preferably includes at least two arm sets that are positionable on a downhole tool deployable into the...
US20090159336 Integrated Quill Position and Toolface Orientation Display  
Method and apparatus for visibly demonstrating a relationship between toolface orientation and quill position by: (1) receiving electronic data on an on-going basis, wherein the electronic data...
US20140231141 SYSTEMS AND METHODS FOR AUTOMATIC WEIGHT ON BIT SENSOR CALIBRATION AND REGULATING BUCKLING OF A DRILLSTRING  
Disclosed are systems and methods for automatic weight on bit sensor calibration and regulating buckling of a drillstring. One method includes taking a first survey recording at a first depth...
US20100044109 Sensor for Determining a Position of a Jack Element  
In one aspect of the present invention, a drill string has a drill bit with a body intermediate a shank and a working face. The working face has at least one cutting element and a jack element...
US20120085582 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 a sonde. Two detectors can be located at positions within the region,...

Matches 1 - 50 out of 303 1 2 3 4 5 6 7 >