Patent application number | Description | Published |
20080255817 | MODELING THE TRANSIENT BEHAVIOR OF BHA/DRILL STRING WHILE DRILLING - A method, system and computer program product for performing a drilling operation for an oil field, the oil field having a subterranean formation with geological structures and reservoirs therein. The method involves creating a finite-difference model to simulate behavior of a drilling assembly used to drill a wellbore in the drilling operation, performing a simulation of the drilling operation using the finite-difference model, analyzing a result of the simulation, and selectively modifying the drilling operation based on the analysis. | 10-16-2008 |
20080289877 | SYSTEM AND METHOD FOR PERFORMING A DRILLING OPERATION IN AN OILFIELD - The invention relates to a method for performing a drilling operation at a wellsite having a drilling rig configured to advance a drilling tool into a subsurface. The method steps include obtaining a well trajectory associated with a first volume, obtaining information related to a first subsurface entity associated with a second volume, using a three-dimensional relational comparison to determine that the first volume intersects the second volume to define a first intersection information, updating the well trajectory, based on the first intersection information, to obtain an updated well trajectory, and advancing the drilling tool into the subsurface based on the updated well trajectory. | 11-27-2008 |
20090152005 | OILFIELD WELL PLANNING AND OPERATION - The invention relates to a system for performing a drilling operation for an oilfield. The system includes a drilling system for advancing a drilling tool into a subterranean formation, a repository storing multiple survey factors for at least one wellsite of the oilfield and multiple drilling factors corresponding to at least one section of a planned trajectory of the at least one wellsite, and a processor and memory storing instructions when executed by the processor. The instructions include functionality to configure a drilling model for each of the at least one wellsite based on the plurality of survey factors and the plurality of drilling factors and selectively adjust the drilling model with respect to a plurality of drilling scenarios to generate an optimal drilling plan. | 06-18-2009 |
20090182472 | REAL-TIME, BI-DIRECTIONAL DATA MANAGEMENT - An example method for real-time bi-directional data management includes receiving a requested data list from a field application, receiving an available data list from a data source, and subscribing to available data by mapping the available data list to the requested data list, the available data having a first data format and a first protocol and including a first context identifier for identifying a portion of data. The method further includes modifying the available data have a second data format and a second protocol, the modified data including the first context identifier, and performing a field operation based on the modified data to generate processed data, the processed data including the first context identifier. The method further includes modifying the processed data to generate second modified data having the first data format and the first protocol, the second modified data being stored in the data source. | 07-16-2009 |
Patent application number | Description | Published |
20100084191 | COMBINING BELIEF NETWORKS TO GENERATE EXPECTED OUTCOMES - A method is described for determining an oilfield parameter for a drilling operation in an oilfield, the oilfield having a well site with a drilling tool advanced into a subterranean formation with geological structures and reservoirs therein. A first set of decision factors and a second set of decision factors about the drilling operation are identified. Each of the first set of decision factors is contained within a first set of nodes, and each of the second set of decision factors is contained within a second set of nodes. Both the first set of nodes and the second set of nodes contain a set of common nodes, which are common to both the first and second sets. The first set of nodes is associated to create a first belief network and the second set of nodes is associated to create a second belief network. Then, the set of common nodes of the first belief network is associated with the set of common nodes of the second belief network to form a multinet belief network. Oilfield parameter can be generated from the multinet belief network. | 04-08-2010 |
20110031015 | SYSTEM AND METHOD FOR MANAGING AND/OR USING DATA FOR TOOLS IN A WELLBORE - A system and a method manage and use data related to a wellbore or a drill string. The system and the method may provide remote access to tools in a drill string using a network. In addition, the tools have access to the data. In a disclosed embodiment, the tools are able to automatically access the data needed to optimize or improve function of the tools. An example of the network is a wireless network where the tools may be monitored and/or controlled remotely by an application. A linking tool is optionally provided to communicate with the network and one or more of the tools. | 02-10-2011 |
20110073367 | COMBINING BELIEF NETWORKS TO GENERATE EXPECTED OUTCOME - A computer usable medium including computer usable program code for determining an oilfield parameter for a drilling operation. The computer usable program code when executed causing a processor to identify first decision factors and second decision factors about the drilling operation, where each of the first decision factors is contained within first nodes, and where each of the second decision factors is contained within second nodes, where the first and second nodes contain common nodes. The computer usable program code further causing the processor to associate the first nodes to create a first belief network and associate the second nodes to create a second belief network, associate the common nodes of the first belief network with the common nodes of the second belief network to form a multinet belief network, and generate at least one oilfield parameter from the multinet belief network. | 03-31-2011 |
20130228328 | AGENT REGISTRATION IN DYNAMIC PHASE MACHINE AUTOMATION SYSTEM - A method, apparatus, and program product facilitate the automation of an oil & gas process, e.g., a drilling process, through the use of a dynamic phase machine incorporating multiple autonomous agents. The agents may be registered after deployment of the dynamic phase machine to dynamically extend the dynamic phase machine and modify an oil & gas process implemented thereby. | 09-05-2013 |
20130228374 | AUTOMATED SURVEY ACCEPTANCE IN DYNAMIC PHASE MACHINE AUTOMATION SYSTEM - A method, apparatus, and program product facilitate the automation of an oil & gas process, e.g., a drilling process, through the use of a dynamic phase machine incorporating multiple autonomous agents. An agent may be used to perform automated acceptance of a survey performed by a downhole survey device, e.g., so that an oil & gas drilling process may proceed for an accepted survey. | 09-05-2013 |
20130231781 | MASTER PLAN FOR DYNAMIC PHASE MACHINE AUTOMATION SYSTEM - A method, apparatus, and program product facilitate the automation of an oil & gas process, e.g., a drilling process, through the use of a dynamic phase machine incorporating multiple autonomous agents. A master plan may be queried during the performance of an oil & gas drilling process, e.g., by a drilling automation system and/or agents registered therewith, to provide data associated with the oil & gas drilling process and thereby assist the drilling automation system with implementing the process. | 09-05-2013 |
20130231787 | DYNAMIC PHASE MACHINE AUTOMATION OF OIL & GAS PROCESSES - A method, apparatus, and program product facilitate the automation of an oil & gas process, e.g., a drilling process, through the use of a dynamic phase machine incorporating multiple autonomous agents. | 09-05-2013 |
20140131099 | System And Method For Managing And/Or Using Data For Tools In A Wellbore - A system and a method manage and use data related to a wellbore or a drill string. The system and the method may provide remote access to tools in a drill string using a network. In addition, the tools have access to the data. In a disclosed embodiment, the tools are able to automatically access the data needed to optimize or improve function of the tools. | 05-15-2014 |
Patent application number | Description | Published |
20110190548 | PROCESS FOR PURIFYING ETHANOL - Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In addition, the process involves returning acetaldehyde separated from the crude ethanol product to the reactor. | 08-04-2011 |
20120035400 | PROCESS FOR PURIFYING ETHANOL - In one embodiment, the invention is to a process for producing ethanol. The process comprises the step of hydrogenating an acetic acid feed stream in a first reactor to form a crude ethanol product. The crude ethanol product may comprise, among other components, ethanol, acetaldehyde, and residual acetic acid. The process further comprises the step of recovering acetaldehyde from the crude ethanol product. The process further comprises the steps of feeding a first portion of the recovered acetaldehyde to the first reactor and reacting the first portion of the recovered acetaldehyde in the first reactor to form additional ethanol. In addition, the inventive process may comprise the steps of feeding a second portion of the recovered acetaldehyde to a second reactor and reacting the second portion of the recovered acetaldehyde in the second reactor to faun an additional product. | 02-09-2012 |
20130081936 | Processes for Producing Acrylic Acids and Acrylates - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt % alkylenating agent and the intermediate product stream comprises acrylate product. The separating is performed in at least one column at an operating pressure ranging from 40 kPa to 80 kPa. | 04-04-2013 |
20130085294 | PROCESSES FOR PRODUCING ACRYLIC ACIDS AND ACRYLATES - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt % alkylenating agent and the intermediate product stream comprises acrylate product. | 04-04-2013 |
20130085296 | PROCESSES FOR THE PRODUCTION OF ACRYLIC ACIDS AND ACRYLATES - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of reacting a reaction mixture comprising an alkanoic acid, an alkylenating agent, and oxygen over a catalyst and under conditions effective to form a crude acrylate product. Preferably, the reaction mixture comprises from 0.5 wt % to 10 wt % oxygen. The crude acrylate product comprises acrylate product and alkylenating agent. The process further comprises the step of separating at least a portion of the crude product to form at least one alkylenating agent stream and at least one purified acrylate product stream. The purified acrylate product stream comprises acrylate product. | 04-04-2013 |
20130085301 | Processes for Producing Acrylic Acids and Acrylates - In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product, an alkylenating agent, and water. The process further comprises the step of contacting at least a portion of the crude product stream or a derivative thereof with an extraction agent mixture to form an extract stream and a raffinate stream. The extract stream comprises acrylate product and extraction agent. The raffinate stream comprises alkylenating agent and water. Preferably, the extraction agent mixture comprises at least two extraction agents. | 04-04-2013 |
Patent application number | Description | Published |
20100221400 | ENGINEERING LIPIDS IN VEGETATIVE TISSUES OF PLANTS - The present invention discloses gene targets and methods for the genetic control of lipid accumulation in vegetative (non-seed) portions of plants. Enhanced lipid, e.g. triacylglycerol (TAG), accumulation in vegetative portions of plants may be obtained by down-regulation of activity of At4g24160 or a homolog thereof. Plants, plant parts, seeds comprising down-regulated AT4G24160 activity, or activity of a homolog thereof, are also provided, as well as products prepared therefrom. | 09-02-2010 |
20140075591 | ENGINEERING LIPIDS IN VEGETATIVE TISSUES OF PLANTS - The present invention discloses gene targets and methods for the genetic control of lipid accumulation in vegetative (non-seed) portions of plants. Enhanced lipid, e.g. triacylglycerol (TAG), accumulation in vegetative portions of plants may be obtained by down-regulation of activity of At4g24160 or a homolog thereof. Plants, plant parts, seeds comprising down-regulated AT4G24160 activity, or activity of a homolog thereof, are also provided, as well as products prepared therefrom. | 03-13-2014 |
Patent application number | Description | Published |
20110261601 | METHOD AND SYSTEM FOR CONTROLLING A MULTI-STAGE POWER INVERTER - A method for controlling an multi-stage inverter comprises controlling an input converter of the multi-stage inverter with an input controller and controlling an output converter of the multi-stage inverter with an output controller separate from the input controller. The input controller and output controller may be galvanically isolated. Additionally, the method may include communicating data between the input controller and the output controller over a power bus of the multi-stage inverter. | 10-27-2011 |
20110267855 | MODULAR PHOTOVOLTAIC POWER SUPPLY ASSEMBLY - An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled to the DC power input. The configurable power supply is selectively configurable between multiple circuit topologies to generate various DC power outputs and/or and AC power output. The system may also include one or more DC power electronic accessories, such as DC-to-DC power converters, and/or one or more AC power electronic accessories such as DC-to-AC power converters. The power electronic accessories are couplable to the configurable power supply to receive the corresponding DC or AC power output of the configurable power supply. | 11-03-2011 |
20110267858 | CONFIGURABLE POWER SUPPLY ASSEMBLY - An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled to the DC power input. The configurable power supply is selectively configurable between multiple circuit topologies to generate various DC power outputs and/or and AC power output. The system may also include one or more DC power electronic accessories, such as DC-to-DC power converters, and/or one or more AC power electronic accessories such as DC-to-AC power converters. The power electronic accessories are couplable to the configurable power supply to receive the corresponding DC or AC power output of the configurable power supply. | 11-03-2011 |
20110267859 | METHOD AND DEVICE FOR CONTROLLING A CONFIGURABLE POWER SUPPLY - An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled to the DC power input. The configurable power supply is selectively configurable between multiple circuit topologies to generate various DC power outputs and/or and AC power output. The system may also include one or more DC power electronic accessories, such as DC-to-DC power converters, and/or one or more AC power electronic accessories such as DC-to-AC power converters. The power electronic accessories are couplable to the configurable power supply to receive the corresponding DC or AC power output of the configurable power supply. | 11-03-2011 |
20120075894 | Configurable Power Supply Assembly - An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled to the DC power input. The configurable power supply is selectively configurable between multiple circuit topologies to generate various DC power outputs and/or and AC power output. The system may also include one or more DC power electronic accessories, such as DC-to-DC power converters, and/or one or more AC power electronic accessories such as DC-to-AC power converters. The power electronic accessories are couplable to the configurable power supply to receive the corresponding DC or AC power output of the configurable power supply. | 03-29-2012 |
20120087158 | Method and Apparatus for Controlling an Inverter Using Pulse Mode Control - A method and apparatus for controlling an inverter includes operating the inverter in a one of a normal run mode or a pulse mode depending on one or more criteria. When operating in the pulse mode, the inverter generates a sinusoidal output pulse waveform including a plurality of pulses having a determined pulse width. The pulse width is less than a half-wave period of a full-cycle sinusoidal waveform and may be determined as function of, for example, the output power of the inverter, a grid voltage, and/or other criteria. | 04-12-2012 |
20120275196 | MULTI-STAGE POWER INVERTER - An inverter for converting an input direct current (DC) waveform from a DC source to an output alternating current (AC) waveform for delivery to an AC grid includes an input converter, an output converter, an input controller, and an output controller. The input controller is configured to control the operation of the input converter, and the output controller is configured to control the operation of the output controller. The input and output controllers are electrically isolated from each other and may be incapable of direct communications between each other. In some embodiments, the input and output controllers may communicate with each other via the input and output converters. | 11-01-2012 |
20130016536 | Device and Method for Global Maximum Power Point Tracking - A device, system, and method for global maximum power point tracking comprises monitoring an output power of a DC power source while executing a maximum power point tracking algorithm and adjusting a maximum power point tracking command signal in response to the output power being less than a reference output power. The command signal is adjusted until the output power exceeds a previous output power by a reference amount. The command signal may be a voltage command signal, a current command signal, an impedance command signal, a duty ratio command signal, or the like. | 01-17-2013 |
20130016544 | Method and Device for Controlling a Configurable Power Supply - An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled to the DC power input. The configurable power supply is selectively configurable between multiple circuit topologies to generate various DC power outputs and/or and AC power output. The system may also include one or more DC power electronic accessories, such as DC-to-DC power converters, and/or one or more AC power electronic accessories such as DC-to-AC power converters. The power electronic accessories are couplable to the configurable power supply to receive the corresponding DC or AC power output of the configurable power supply. | 01-17-2013 |
20130027998 | APPARATUS AND METHOD FOR CONTROLLING A POWER INVERTER - An apparatus and method for controlling a DC-to-AC inverter is disclosed. The DC-to-AC inverter may be configured to convert DC power received from an alternative energy source to AC power for supplying an AC grid or load. The inverter may determine whether the power presently supplied by the alternative energy source is less than a predetermined amount of power and, if so, disable an output converter of the inverter. Additionally, the inverter may predict the voltage of a DC bus of the inverter at a future point in time and, if the predicted DC bus voltage is greater than a predetermined maximum DC bus voltage, enable the output converter to transfer energy from the DC bus to the AC grid to reduce the DC bus voltage. | 01-31-2013 |
20150144181 | INTEGRATION OF MICROINVERTER WITH PHOTOVOLTAIC MODULE - Various technologies for integrating a microinverter with a photovoltaic module are disclosed. An alternating current photovoltaic (ACPV) module includes a photovoltaic module having a frame and a junction box including a direct current (DC) output connector, and a microinverter having a housing coupled to the frame and a DC input connector electrically mated with the DC output connector of the photovoltaic module. | 05-28-2015 |
Patent application number | Description | Published |
20110222326 | VARIABLE DUTY CYCLE SWITCHING WITH IMPOSED DELAY - Power conversion methods, systems, articles of manufacture, and devices are provided. The power conversion may include converting between direct current and alternating current wherein switching losses associated with latent electrical charges are reduced. Current sensing may be low-side bus reference. Solid-state implementations, code implementations, and mixed implementations are provided. | 09-15-2011 |
20120008348 | COMMUNICATION WITHIN A POWER INVERTER USING TRANSFORMER VOLTAGE FREQUENCY - A power inverter may include a transformer serving as an isolation barrier. The power inverter may include a first controller on one side of the isolation barrier. The first controller may encode the frequency of an input voltage of the transformer with one or more operating conditions of a direct current power supply electrically coupled to the inverter. As second controller on the other side of the isolation barrier may determine a frequency associated with an output voltage of the transformer. The second controller may decode the frequency associated with the output voltage of the transformer to determine the encoded operating conditions. | 01-12-2012 |
20120155128 | Power Converter with Reverse Recovery Avoidance - Reverse recovery avoidance when converting power is provided. A first switch and second switch may be operated to supply an AC load with positive current, respective to the AC load, from a DC power source. A third and fourth switch may be operated to supply the AC load with negative current, respective to the AC load, from the DC power source. Four diodes may be employed with the switches. One diode may conduct the positive current when the first switch is off and the second switch is on. Another diode may conduct the negative current when the third switch is off and the fourth switch is on. | 06-21-2012 |
20120242322 | Supply Voltage Auto-Sensing - Processes, machines, and articles of manufacture that may serve to enable the detection or determination of alternating line voltages from an alternating power source, such as the power grid, are provided. This automatic sensing may be useful when connections are made to the power grid, such that when connections are made, the connections may be configured to be compatible with the available power source. This automatic sensing may also be useful if power sources change characteristics over time or if devices may be connected to different power sources over time. | 09-27-2012 |
20120320641 | POWER CONVERTER BUS CONTROL - Processes, machines, and articles of manufacture that may management power conversion as provided. This may include circuit topology or management that serves to improve power conversion efficiency from a DC waveform to an AC waveform. This circuit topology or management may include considering and managing the voltage across a DC-link capacitive bus and the phase angle output of an AC waveform in order to influence or improve power conversion characteristics or efficiency. | 12-20-2012 |
20130027982 | APPARATUS FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT - An inverter for converting an input direct current (DC) waveform from a DC source to an output alternating current (AC) waveform for delivery to an AC grid includes an input converter, an output converter, and an active filter, each of which is electrically coupled to a bus. The bus may be a DC bus or an AC bus. The input converter is configured to convert the input DC waveform to a DC or AC bus waveform. The output converter is configured to convert the bus waveform to the output AC waveform at a grid frequency. The active filter is configured to reduce a double-frequency ripple power of the bus waveform by supplying power to and absorbing power from the power bus. | 01-31-2013 |
20130094268 | Method and Apparatus for Controlling an Inverter Using Pulse Mode Control - A method and apparatus for controlling an inverter includes operating the inverter in a one of a normal run mode or a pulse mode depending on one or more criteria. When operating in the pulse mode, the inverter generates a sinusoidal output pulse waveform including a plurality of pulses having a determined pulse width. The pulse width is less than a half-wave period of a full-cycle sinusoidal waveform and may be determined as function of, for example, the output power of the inverter, a grid voltage, and/or other criteria. | 04-18-2013 |
20130308345 | Variable Duty Cycle Switching With Imposed Delay - Power conversion methods, systems, articles of manufacture, and devices are provided. The power conversion may include converting between direct current and alternating current wherein switching losses associated with latent electrical charges are reduced. Current sensing may be low-side bus reference. Solid-state implementations, code implementations, and mixed implementations are provided. | 11-21-2013 |
20140003100 | APPARATUS AND METHOD FOR CONTROLLING DC-AC POWER CONVERSION | 01-02-2014 |
20140003110 | Device, System, and Method for Communicating with a Power Inverter Using Power Line Communications | 01-02-2014 |
20140036563 | Quadrature-Corrected Feedforward Control Apparatus and Method for DC-AC Power Conversion - An apparatus and method for controlling the delivery of a pre-determined amount of power from a DC source to an AC grid includes an inverter and an inverter controller. The inverter includes an input converter, an energy storage capacitor, and an output converter. The inverter controller includes an input converter controller and an output converter controller. The input converter controller includes feedforward controller configured to perform a calculation to determine a value for the duty cycle for the input converter such that: (1) the input converter delivers the pre-determined amount of power and (2) the magnitude of a ripple signal reflected into the input source is attenuated toward zero. The input converter controller may also include a quadrature corrector configured to determine the effectiveness of the calculation in attenuating the ripple and to adaptively alter the calculation to improve the effectiveness. | 02-06-2014 |
20140084702 | MODULAR PHOTOVOLTAIC POWER SUPPLY ASSEMBLY - An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled to the DC power input. The configurable power supply is selectively configurable between multiple circuit topologies to generate various DC power outputs and/or and AC power output. The system may also include one or more DC power electronic accessories, such as DC-to-DC power converters, and/or one or more AC power electronic accessories such as DC-to-AC power converters. The power electronic accessories are couplable to the configurable power supply to receive the corresponding DC or AC power output of the configurable power supply. | 03-27-2014 |
20140133197 | Communication Within A Power Inverter Using Transformer Voltage Frequency - A power inverter may include a transformer serving as an isolation barrier. The power inverter may include a first controller on one side of the isolation barrier. The first controller may encode the frequency of an input voltage of the transformer with one or more operating conditions of a direct current power supply electrically coupled to the inverter. As second controller on the other side of the isolation barrier may determine a frequency associated with an output voltage of the transformer. The second controller may decode the frequency associated with the output voltage of the transformer to determine the encoded operating conditions. | 05-15-2014 |
20140268958 | INVERTER COMMUNICATIONS USING OUTPUT SIGNAL - Technologies for communicating information from an inverter configured for the conversion of direct current (DC) power generated from an alternative source to alternating current (AC) power are disclosed. The technologies include determining information to be transmitted from the inverter over a power line cable connected to the inverter and controlling the operation of an output converter of the inverter as a function of the information to be transmitted to cause the output converter to generate an output waveform having the information modulated thereon. | 09-18-2014 |