Class / Patent application number | Description | Number of patent applications / Date published |
073152430 | During drilling | 33 |
20090038391 | THROUGH-MILL WELLBORE OPTICAL INSPECTION AND REMEDIATION APPARATUS AND METHODOLOGY - An optical inspection instrument includes a housing configured to move along the interior of a pipe string in a wellbore. The pipe has a cutting structure at its bottom end. The instrument includes a probe extending from a bottom end of the housing. The probe has an output from a light source and a light input to a video camera. The probe has a diameter selected to enable extension through an opening in the cutting structure. A method for inspecting a wellbore includes moving an instrument through an interior of a pipe string in the wellbore. The pipe has a cutting tool at its lower end. At least part of the instrument is moved outside the bottom end of the pipe through a port in the cutting tool. Optically transparent fluid is moved into the wellbore proximate an end of the instrument outside the pipe string. Objects proximate the fluid are inspected. | 02-12-2009 |
20140083177 | System For Logging While Running Casing - A well logging while casing instrument system includes a segment of pipe having at least one window therein corresponding to selected well logging instrument sensors. The segment of pipe has at least one of a float collar, a reaming shoe or a casing drill bit attached to one end thereof. At least one well logging instrument is disposed inside the segment of pipe. The at least one well logging instrument includes at least one sensor disposed at longitudinal position corresponding to the at least one window. The at least one well logging instrument includes a fishing neck at one longitudinal end thereof to enable retrieval of the at least one well logging instrument from the interior of the segment of pipe. | 03-27-2014 |
20150346234 | DOWNHOLE ROTATIONAL SPEED MEASUREMENT SYSTEM AND METHOD - A rotational speed measurement system may include a rotational speed measuring device for measuring a rotational speed of a motor or component thereof. The downhole rotational speed measuring device may include a magnet and a magnetic sensor. A telescoping unit may position the magnetic sensor into sensing proximity of the magnet. A method for measuring downhole rotational speed may include coupling a rotational speed measuring device to a measurement assembly and a motor. The rotational speed measuring device may include a magnet and a magnetic sensor. The position of the magnetic sensor, the magnet, or both, may be adjusted with a telescoping unit to place the magnetic sensor into sensing proximity of the magnet. | 12-03-2015 |
073152440 | Drill depth rate | 1 |
20160168978 | METHODS AND APPARATUSES FOR DETERMINING TRUE VERTICAL DEPTH (TVD) WITHIN A WELL | 06-16-2016 |
073152460 | Downhole measurement | 27 |
20080216568 | SYSTEM AND METHOD FOR PROCESSING AND TRANSMITTING INFORMATION FROM MEASUREMENTS MADE WHILE DRILLING - Methods and systems are disclosed for downhole processing of measurements made in a wellbore during the construction of the wellbore. The system includes sensors located downhole adapted to measure downhole parameters. The system uses a downhole processor to calculate a statistical relationship, preferably covariance, between the two downhole parameters. A transmitter located downhole and in communication with the downhole processor is used to transmit the calculated statistical relationship to the surface. At the surface the statistical relationship is compared with surface acquired data and surface drilling operating parameters are altered based on the statistical relationship. | 09-11-2008 |
20090038392 | SYSTEM AND METHOD FOR CORRECTING ERRORS IN DEPTH FOR MEASURMENTS MADE WHILE DRILLING - A method and system is disclosed for automatically correcting for depth errors in measurements taken from a drill-string during the drilling phase of the construction of a hydrocarbon wellbore. The correction is based on a stress profile which in turn is based on the states of the drilling rig, drill string description length spec, borehole description trajectory, friction factor and weight on bit. | 02-12-2009 |
20090235732 | METHOD AND APPARATUS FOR MEASURING TRUE VERTICAL DEPTH IN A BOREHOLE - A system for measuring a true vertical depth of a downhole tool is provided. The system includes: a first optical clock located at a first depth and having a first frequency; a second optical clock disposable at a downhole location and having a second frequency at the downhole location; and a processor for receiving the first frequency and the second frequency, and calculating a true vertical depth of the second optical clock based on a difference between the first frequency and the second frequency. A system and computer program product for measuring a true vertical depth of a downhole tool are also provided. | 09-24-2009 |
20130205888 | METHOD AND APPARATUS TO MEASURE BOREHOLE PRESSURE DURING BLASTING - Pressure sensors and techniques are presented in which one or more piezoelectric discs are housed in a holder structure with a hole allowing exposure of the piezoelectric disc(s) to ambient pressure within a borehole, with wiring leads passing through the holder structure for conveying an electrical signal from the piezoelectric device to an external interface circuit or for conveying an electrical signal from an internal interface circuit to an external data acquisition system. | 08-15-2013 |
20130239673 | Systems and Methods for Collecting One or More Measurements in a Borehole - A system and method collects at least one measurement within a borehole formed in a formation. The system and method provides a drill collar made of a non-conductive or substantially non-conductive composite material positioned within the borehole. A downhole component is capable of collecting at least one measurement and is embedded within the composite material of the drill collar. The at least one measurement collectable by the downhole component is related to the borehole or the formation about the borehole. | 09-19-2013 |
20150013448 | SYSTEM AND METHOD FOR IMPROVED CUTTINGS MEASUREMENTS - Systems and methods for improved cuttings measurements are described. Embodiments of the invention compare real-time, continuous measurements of cuttings coming over shakers to predictions of the amount of cuttings expected to be coming over the shakers. According to some embodiments, when the actual, real-time measurements differ from the predicted estimates, a warning alarm is sounded or displayed. Such alarms may indicate that corrective actions should be taken in order to optimize drilling conditions. | 01-15-2015 |
20150330210 | DETERMINING GRAVITY TOOLFACE AND INCLINATION IN A ROTATING DOWNHOLE TOOL - Systems and methods for determining gravity toolface and inclination are described herein. An example may comprise a downhole tool ( | 11-19-2015 |
20160003863 | MECHANICAL SHOCK RESISTANT MEMS ACCELEROMETER ARRANGEMENT, ASSOCIATED METHOD, APPARATUS AND SYSTEM - An accelerometer arrangement and method are described for determining accelerations of an inground tool. First and second triaxial accelerometers are supported such that a normal sensing axis of the first triaxial accelerometer is at least generally orthogonal to the normal sensing axis of the second triaxial accelerometer for determining the accelerations along the three orthogonal axes based on a combination of sensing axis outputs from one or both of the triaxial accelerometers. A weaker sensing axis of one triaxial accelerometer can be supported at least approximately normal to a weaker sensing axis of another triaxial accelerometer such that the weaker axes are not used. The triaxial accelerometers can be supported such that one axis of one accelerometer can be redundant with respect to another axis of another accelerometer. One triaxial accelerometer can be mounted on a tilted plane with respect to another triaxial accelerometer. | 01-07-2016 |
073152470 | Vibration | 13 |
20100000311 | TRANSDUCER ASSEMBLIES FOR DOWNHOLE TOOLS - Methods and related systems are described relating to a sealed acoustic transducer assembly for use in a wellbore is provided. One or more acoustic transducer elements, which can be receivers or transmitters, are housed in an elongated fluid filled sealed container. The sealed container is adapted to be removeably mounted to a portion of a drill collar. The container, which for example can be made of thin corrugated metal or rubber, includes flexible portions along the length of the container which allows for volume changes when exposed to changes in external pressure and/or temperature. | 01-07-2010 |
20100107754 | DISTRIBUTED ACOUSTIC WAVE DETECTION - A distributed acoustic wave detection system and method is provided. The system may include a fiber optic cable deployed in a well and configured to react to pressure changes resulting from a propagating acoustic wave and an optical source configured to launch interrogating pulses into the fiber optic cable. In addition, the system may include a receiver configured to detect coherent Rayleigh noise produced in response to the interrogating pulses. The CRN signal may be use to track the propagation of the acoustic wave in the well. | 05-06-2010 |
20100154531 | Caliper Logging Using Circumferentially Spaced and/or Angled Transducer Elements - A downhole tool includes circumferentially spaced and/or angled transducer elements. In one embodiment a standoff sensor has at least three piezoelectric transducer elements, at least a first element of which is configured to both transmit and receive ultrasonic energy. At least second and third of the elements are configured to receive ultrasonic energy transmitted by the first element in pitch catch mode. An electronic controller is configured to calculate a standoff distance from the ultrasonic waveforms received at the first, the second, and the third piezoelectric transducer elements. The controller may further be configured to estimate the eccentricity of a measurement tool in the borehole. Exemplary embodiments of the invention may improve borehole coverage and data quality and reliability in LWD caliper logging. In particular, the invention may advantageously reduce or even eliminate blind spots when logging eccentric bore holes. | 06-24-2010 |
20120186335 | IMAGING SUBSURFACE FORMATIONS WHILE WELLBORE DRILLING USING BEAM STEERING FOR IMPROVED IMAGE RESOLUTION - A system for imaging rock formations while drilling a wellbore includes a drill collar and a plurality of acoustic emitting transducers mounted in the drill collar at angularly spaced apart locations and oriented to emit acoustic energy at least one of laterally away from the drill collar and longitudinally away from the drill collar. A plurality of arrays of acoustic transducers arranged is longitudinally along the drill collar and angularly spaced apart from each other. Each transducer in the plurality of arrays is oriented normal to a longitudinal axis of the collar. Angular spacing between adjacent arrays is selected to provide lateral beam steered receiving response having a selected main lobe width and side lobe response for a plurality of rock formation acoustic velocities. A controller selectively actuates the emitting acoustic transducers at selected times. The controller beam steers response of the plurality of arrays of transducers to detect reflected acoustic energy from the emitting acoustic transducers. | 07-26-2012 |
20120324993 | Transducer Assembly For A Downhole Tools - Methods and related systems are described relating to a sealed acoustic transducer assembly for use in a wellbore is provided. A tool body is deployed in the wellbore, having a groove and a sealed acoustic transducer assembly removeably mounted therein. The transducer assembly includes an acoustic transducer element, and an elongated fluid filled sealed container housing the transducer element. The container includes flexible portions along the length of the container which allows for volume changes when exposed to changes in external pressure and/or temperature. Acoustic measurements downhole are made using the transducer element. | 12-27-2012 |
20130104642 | METHOD AND SYSTEM OF DETERMINING CONSTITUENT COMPONENTS OF A FLUID SAMPLE | 05-02-2013 |
20130125641 | Micro-Sonic Density Imaging While Drilling Systems and Methods - Various micro-sonic density imaging-while-drilling systems and methods are disclosed. In at least some forms, the micro-sonic logging tool is embodied in a drill collar having at least one stabilizer blade. One or more acoustic transmitters are set in a distal face of the stabilizer blade to generate acoustic waves. One or more receivers can also be set in the distal face of the stabilizer blade to detect P-waves and S-waves that have propagated through the formation making up the borehole wall. Processing circuitry measures the velocity or slowness of the acoustic waves and optionally associates the measured values with a spot on the borehole wall as identified. Multiple transmitters can be used if it is desired to obtain compensated measurements. The tool can further include a fluid cell to measure acoustical properties of the borehole fluid, which can be used to convert the formation slowness measurements into density measurements. | 05-23-2013 |
20130213129 | MEASUREMENT OF DOWNHOLE COMPONENT STRESS AND SURFACE CONDITIONS - An apparatus for measuring strain on a downhole component includes: at least one strain sensitive device disposed proximate to a surface of a component of a drilling assembly or disposed within a material forming the component; and a processor in operable communication with the at least one strain sensitive device, the processor configured to detect changes in the at least one strain sensitive device and detect at least one of erosion, crack formation and crack propagation in the component surface. An apparatus for measuring strain on a downhole component includes: at least one strain gauge deposited on a surface of a drive shaft or disposed within a material forming the drive shaft; and a processor in operable communication with the at least one strain gauge, the processor configured to detect changes in the at least one strain gauge and detect conditions affecting operation of the drive shaft. | 08-22-2013 |
20130298664 | PIPE WITH VIBRATIONAL ANALYTICS - A system is disclosed that includes a pipe and a device for measuring and storing vibration data related to the use of the pipe and its remaining lifespan. The data can be collected wirelessly using a radio frequency device. | 11-14-2013 |
20140290351 | Magnetic Debris and Particle Detector - A system, method and apparatus for determining wear on a component of a tool is disclosed. An oscillating member receives a particle freed from the component as a result of the wear on the component. A measuring device measures a change in a parameter of the oscillating member resulting from receiving the particle. A processor determines the wear on the component from the change in the parameter. In one embodiment, the component may include a component of a downhole tool. | 10-02-2014 |
20150300152 | EXCAVATION STATUS MONITORING SYSTEM FOR TUNNELING MACHINE - An excavation status monitoring system for a tunneling machine that includes a detecting portion mounted on a cutter head of the tunneling machine, including an accelerometer that detects a vibration or an acoustic sensor that detects a sound wave and a sound output portion that outputs a signal detected by the detecting portion as sound. | 10-22-2015 |
20160072040 | Bender Bar Transducer Having Stacked Encapsulated Actuators - A bender bar transducer having stacked encapsulated actuators provides improved acoustic power over a wider frequency range, low applied voltage requirements and consistent part-to-part performance. | 03-10-2016 |
20160251955 | OBSERVATION OF VIBRATION OF ROTARY APPARATUS | 09-01-2016 |
073152480 | Force | 6 |
20080236271 | Downhole seal assembly having embedded sensors and method for use of same - A downhole seal ( | 10-02-2008 |
20120103083 | MEASURING DEVICE - A device for measuring the torque or force exerted by a drilling machine during a rotation, driving or lifting of a tool. The measuring device includes an engaging device with a drilling battery or with a shaft of at least a drilling equipment or rotary of the machine the engaging device is susceptible of symmetrically or axial-symmetrically locking the drilling battery or the shaft preventing the rotation and/or the axial displacement in a position in correspondence to the tool. The engaging device is associated with at least a transducer for the detection of at least a maximum torque or of at least a maximum force exerted by the machine; and the measuring device is fixedly constrained to the drilling battery or to the shaft. | 05-03-2012 |
20130068008 | HIGH TEMPERATURE PIEZORESISTIVE STRAIN GAUGES MADE OF SILICON-ON-INSULATOR - Disclosed is an apparatus for measuring a parameter in a borehole penetrating the earth. The apparatus includes a sensor configured to be disposed in the borehole and having a piezo-resistor fabricated from a semiconductor on an insulator wherein a portion of the semiconductor is etched to the insulator to form the piezo-resistor, the piezo-resistor being responsive to the parameter. | 03-21-2013 |
20130239674 | APPARATUS FOR MEASURING BENDING ON A DRILL BIT OPERATING IN A WELL - An apparatus for measuring the bending on a drill bit operating down hole in a well may comprise at least three pockets circumferentially spaced equidistantly around the drill collar of the drill string to which the drill bit is attached. Four strain gauges are equidistantly circumferentially spaced around each of the pockets so as to form first and second sets of strain gauges. The strain gauges in the first set are connected into one Wheatstone bridge while the gauges in the second set are connected in a second bridge. Each of the strain gauges that are oriented similarly within each of the pockets are connected in series within a single leg of a bridge so that the output voltage of the bridge is unaffected by bending in the drill string. The output of first bridge is used to determine the bending on the drill bit. Further, an apparatus for measuring the bending, weight, and torque on a drill bit operating down hole in a well may comprise at least three pockets circumferentially spaced equidistantly around the drill collar of the drill string to which the drill bit is attached with twelve strain gauges that are equidistantly circumferentially spaced around each of the pockets so as to form first and second sets of strain gauges. The arrangement of the twelve strain gauges allow for a bending on bit measurement that cancels out the affects of the weight on bit and torque on bit. | 09-19-2013 |
20140041447 | METHOD AND DEVICE FOR PRODUCING AND MEASURING A BOREHOLE - The invention relates to a method and a device for producing and measuring a borehole in the ground. As far as the method is concerned, provision is made in that the borehole is produced through drilling, that between a carrier unit above a ground surface and a measuring body a measuring rope is tensioned, that the measuring body is inserted so as to fit into the borehole in the ground and lowered, that by means of angle and distance measurements the positions of at least two vertically spaced rope points of the tensioned measuring rope are ascertained and in that on the basis of the ascertained positions of the rope points the position of the measuring body in the borehole is determined as a measure for the location of the borehole. | 02-13-2014 |
20150075274 | Evaluating a Condition of a Downhole Component of a Drillstring - Methods, systems and products for evaluating a downhole component condition for a drilling assembly in a borehole. Methods include estimating a bending moment on the component at a selected depth along the borehole; estimating a number of rotations of the component at the selected depth; and estimating the condition of the component using the estimated bending moment and the estimated number of rotations at the selected depth. Estimated bending moment may be derived from a borehole model using an estimated deviation on a selected length of the borehole about the selected depth. The condition may be accumulated fatigue or estimated remaining useful life. Estimating the condition may include tracking a total estimated number of rotations wherein the component is subjected to bending moment values in a corresponding moment window, which may be greater than a predetermined threshold bending moment. Weight factors may be associated with at least one moment window. | 03-19-2015 |
073152490 | Force | 2 |
20090013775 | DOWNHOLE TOOL SENSOR SYSTEM AND METHOD - An apparatus and method for determining forces on a downhole drilling tool is provided. The downhole tool is provided with a drill collar operatively connectable to the drilling tool, and a sensor mounted about the drill collar. The sensor is adapted to measure deformation of the drill collar whereby forces on the drilling tool are determined. The sensor may be part of a force measurement system, a strain gauge system or a drilling jar system. The drill collar is adapted to magnify and/or isolate the deformation applied to the drill string. | 01-15-2009 |
20100018306 | METHOD AND DEVICE FOR DETERMINING THE EXISTENCE AND LOCATION OF STRESS-INDUCING FORCES ON A ROD - The present invention relates to methods for determining the existence and location of parasitic stress-inducing forces on a substantially cylindrical rod portion | 01-28-2010 |