Patent application number | Description | Published |
20100073190 | Telemetry Method and System for Subsurface Well and Reservoir and Logging Data - A method and system for transmitting data through a transmission medium between surface and subsurface transceivers. A surface transceiver and a subsurface transceiver are each configured to selectively transmit over a plurality of transmission channels, each transmission channel having a range of frequencies within the total frequency bandwidth. The surface transceiver is adapted to initialize a channel to determine at least one parameter affecting the current maximum data rate for transmission of information through the channel using a given transmission methodology. At least one of the channels uses carrierless phase/amplitude (CAP) modulation for its transmission methodology. The surface transceiver and the subsurface transceiver adapt to cooperatively periodically test a channel by transmission of a calibration signal from the subsurface transceiver to the surface transceiver. Control circuitry compares the received calibration signal with the calibration signal, responding to the result of the comparison to adjust at least one parameter as necessary to achieve an optimum rate of data transmission through said channel. | 03-25-2010 |
20100078161 | ELECTRICAL CONTROL FOR A DOWNHOLE SYSTEM - A method for controlling the electrical power delivered to a downhole system. The downhole system may include a power supply, a downhole tool, and a wire or cable connecting the downhole tool to the power supply. A resistive load, such as a motor, is included with the downhole tool. The power supplied to the downhole tool is dynamically adjustable to match the resistive load voltage and power rating. Dynamically adjusting power is accomplished by varying voltage from the power supply, varying the resistive load requirements, or a combination of both. | 04-01-2010 |
20140138083 | Self-Cleaning Fluid Jet for Downhole Cutting Operations - Devices and methods for cutting a workpiece. A cutter is provided with a fluid jet generator that creates and projects a jet of fluid proximate the cut being made in a workpiece. | 05-22-2014 |
20140158350 | ALL PURPOSE PUMPDOWN INSTRUMENT - An apparatus for flowing a tool string along a wellbore tubular may include a flow restrictor having a diametrically expanded position and a diametrically retracted position. The flow restrictor may include at least one sealing element that sealingly engages the wellbore tubular when in the diametrically expanded position. The apparatus also includes an actuator configured to move the at least one sealing element to at least a position intermediate of the open and the closed position. The actuator may be responsive to a control signal that is generated locally or transmitted from a remote location. | 06-12-2014 |
20140304016 | REGULATING ASSET USE BY USER ENTITY - Methods and systems for regulating use of an asset by a user entity. The user entity may be bound by an asset use agreement providing the user entity a right to use the asset subject to at least one use limitation. Regulating use of the asset may be carried out using at least one processor in communication with a sensor, wherein the sensor is configured to sense a condition associated with the asset relating to at least one use limitation. The method may include generating a violation notification message for a managing entity when the at least one processor identifies a violation by the user entity of the at least one use limitation. The managing entity may be the entity responsible for regulating the user entity's use of the asset. The managing entity may be remote from the asset and/or the processor. | 10-09-2014 |
20150176384 | One Trip Multi-interval Plugging, Perforating and Fracking Method - A one trip system for perforating and fracking multiple intervals uses a releasable barrier. The barrier can be an inflatable. A pressure booster system is associated with the BHA so that the existing hydrostatic pressure is boosted when the gun or portions thereof are fired. After firing in one interval, the BHA is raised and the barrier is redeployed and the pattern repeats. Instruments allow sensing the conditions in the interval for optimal placement of the gun therein and for monitoring flow, pressure and formation conditions during the fracturing. Circulation between gun firings cleans up the hole. If run in on wireline a water saving tool can be associated with the BHA to rapidly position it where desired. A multitude of perforation charges mounted in the BHA can be selectively fired by selected corresponding detonator based on a predetermined sequence or surface telemetry command. | 06-25-2015 |
20150176385 | Providing a Pressure Boost While Perforating to Initiate Fracking - A one trip system for perforating and fracking multiple intervals uses a releasable barrier. The barrier can be an inflatable. A pressure booster system is associated with the BHA so that the existing hydrostatic pressure is boosted when the gun or portions thereof are fired. After firing in one interval, the BHA is raised and the barrier is redeployed and the pattern repeats. Instruments allow sensing the conditions in the interval for optimal placement of the gun therein and for monitoring flow, pressure and formation conditions during the fracturing. Circulation between gun firings cleans up the hole. If run in on wireline a water saving tool can be associated with the BHA to rapidly position it where desired. A multitude of perforation charges mounted in the BHA can be selectively fired by selected corresponding detonator based on a predetermined sequence or surface telemetry command. | 06-25-2015 |
20150176386 | Using a Combination of a Perforating Gun with an Inflatable to Complete Multiple Zones in a Single Trip - A one trip system for perforating and fracking multiple intervals uses a releasable barrier. The barrier can be an inflatable. A pressure booster system is associated with the BHA so that the existing hydrostatic pressure is boosted when the gun or portions thereof are fired. After firing in one interval, the BHA is raised and the barrier is redeployed and the pattern repeats. Instruments allow sensing the conditions in the interval for optimal placement of the gun therein and for monitoring flow, pressure and formation conditions during the fracturing. Circulation between gun firings cleans up the hole. If run in on wireline a water saving tool can be associated with the BHA to rapidly position it where desired. A multitude of perforation charges mounted in the BHA can be selectively fired by selected corresponding detonator based on a predetermined sequence or surface telemetry command. | 06-25-2015 |