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Jeffryes, GB
Benjamin Jeffryes, Cambridgeshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20090133487 | Downhole Communication Method and System - A system and method is provided for communicating with a device disposed in a wellbore. Signals are sent through the Earth via signal pulses. The pulses are created by a seismic vibrator and processed by a receiver disposed in the wellbore. The receiver is in communication with the device and transfers data, such as command and control signal, to the device. | 05-28-2009 |
| 20090266608 | TORSIONAL RESONANCE PREVENTION - According to the invention, a system for drilling a cavity in a medium is disclosed. The system may include a drill bit, a processor, and a controller. The drill bit may be configured to rotate in the medium and remove at least a portion of the medium. The processor may be configured to receive a first set of data representative of a variable rotational speed of the drill bit during a length of time in the medium, and determine, based at least in part on the first set of data, a first resonant frequency of the variable rotational speed of the drill bit. The controller may be configured to receive a second set of data representative of the first resonant frequency of the variable rotational speed of the drill bit, and vary the force applied to the drill bit based at least in part on the second set of data. | 10-29-2009 |
| 20100084192 | METHOD OF DOWNLINKING TO A DOWNHOLE TOOL - A method of downlinking to a downhole tool located in a borehole is provided. The downhole tool detects transitions in the flow velocity of fluid circulating in the borehole at the downhole tool. To provide for the detection of the transitions fluid is pumped into the drillstring so that it circulates in the borehole at the downhole tool and the pumping rate of fluid into the drillstring is either increased to a rate which overshoots a steady state pumping rate needed to produce a transition or is decreased to a rate which undershoots a steady state pumping rate needed to produce a transition. | 04-08-2010 |
Benjamin P. Jeffryes, Histon GB
| Patent application number | Description | Published |
|---|---|---|
| 20090101340 | TECHNIQUE AND APPARATUS TO PERFORM A LEAK OFF TEST IN A WELL - A technique that is usable with a well includes deploying at least one sensing device in the well and during a leak off test, communicating a signal that is indicative of a measurement that is acquired by the sensing device(s) over a wired infrastructure of a drill string. The technique includes controlling the leak off test based at least in part on the communication. | 04-23-2009 |
| 20090272580 | DRILLING SYSTEM WITH DRILL STRING VALVES - A method to control borehole fluid flow includes detecting a drilling condition and operating at least one valve in the drill string to place an exterior of the drill string in fluid communication with an interior of the drill string in response to detecting the drilling condition. | 11-05-2009 |
| 20110139508 | GAUGE PADS, CUTTERS, ROTARY COMPONENTS, AND METHODS FOR DIRECTIONAL DRILLING - The present invention recites a method, system and apparatus, wherein said method, system and apparatus comprises a gauge pad for a rotary component received within a borehole, the gauge pad comprising an exterior surface dimensioned for rotation in close proximity to the borehole, a pocket extending through the exterior surface, the pocket in fluid communication with a pressurized fluid source, and wherein the exterior surface is dimensioned such that when a pressurized fluid is discharged through the pocket, the velocity of the fluid through a gap between the exterior surface and borehole creates a pressure drop sufficient to pull the rotary component toward the gauge pad. | 06-16-2011 |
Benjamin P. Jeffryes, Cambs GB
| Patent application number | Description | Published |
|---|---|---|
| 20090033176 | SYSTEM AND METHOD FOR LONG TERM POWER IN WELL APPLICATIONS - A technique is provided by which energy is physically/mechanically transmitted down through a wellbore. The transmitted energy is directed downhole along a fluid channel and impinges on an energy converter positioned in the wellbore or at another subterranean location. The energy converter converts the physical energy into electrical energy that can be supplied to a downhole device. | 02-05-2009 |
Benjamin Peter Jeffryes, Cambridgeshire GB
| Patent application number | Description | Published |
|---|---|---|
| 20080231467 | COMPLIANCE TELEMETRY - A communication system for communicating information with a compliant medium is disclosed, the communication device includes a constrained fluid, a valve, a modulator, a sensor and a demodulator. The constrained is fluid distributed along a length. The valve is configured to operatively engage a second point relative to the length. The modulator configured to actuate the valve according to information. The sensor configured to measure pressure at a first point relative to the length, where the first point is distant from the second point. The demodulator is coupled to the sensor to recover the information. | 09-25-2008 |
| 20080245568 | System and Method for Drilling a Borehole - A system and method is provided for drilling a wellbore including a rotary drill bit with a bit body having a plurality of mechanical cutters to cut away formation material as the wellbore is formed; and a directed energy mechanism to direct energy into the formation such that energy from the directed energy mechanism causes fracturing of surrounding material to facilitate drilling in the direction of the directed energy. | 10-09-2008 |
| 20100008187 | METHOD OF SEISMIC SURVEYING - A method enables the time required to complete a seismic survey and the noises recorded in the seismic data to be reduced. One aspect of the method includes actuating a first vibrator group to start a first sweep at time T | 01-14-2010 |
| 20100319998 | WELLBORE CONSOLIDATING TOOL FOR ROTARY DRILLING APPLICATION - A subpart of a drill string is described having an outer circumferential surface which is contoured and adapted to engage the wall of the borehole with a small angle of attack while exerting during rotary drilling operations an compacting pressure on mud cake and/or cuttings present in the annulus between the drill string and the borehole. | 12-23-2010 |
Benjamin Peter Jeffryes, Histon GB
| Patent application number | Description | Published |
|---|---|---|
| 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 |
| 20080232194 | Method of Seismic Surveying - A method enables the time required to complete a seismic survey and the noises recorded in the seismic data to be reduced. One aspect of the method includes actuating a first vibrator group to start a first sweep at time T | 09-25-2008 |