Patent application number | Description | Published |
20090044542 | APPARATUS AND METHOD FOR MONITORING COMPRESSOR CLEARANCE AND CONTROLLING A GAS TURBINE - A gas turbine including a compressor, the gas turbine including a sensor for measuring a clearance of blades in the compressor; and a controller for receiving clearance information and using the information to control the gas turbine for prevention of at least one of a surge and rubbing of the blades. | 02-19-2009 |
20100080685 | Method and Apparatus for Gas Turbine Engine Temperature Management - A cooling system for a turbine engine, as well as a methodology for controlling the cooling system, is described. A valve member is disposed between a cooling fluid passage and a wheel space of the turbine engine and operates to admit cooling fluid to the wheel space for cooling thereof. The valve assembly is responsive to a condition in the wheel space and varies the flow of additional cooling fluid to the wheel space based on that condition. | 04-01-2010 |
20100269481 | SYSTEMS AND METHODS FOR PROVIDING SURGE PROTECTION TO A TURBINE COMPONENT - Systems and methods for providing surge protection to turbine components are provided. A surge protection limit may be determined for the turbine component. One or more measurements associated with operation of the turbine component may be received and provided to a cycle model executed to predict an operating condition of the turbine component. The predicted operating condition of the turbine component may be adjusted based at least in part on the received one or more measurements. The surge protection limit may be adjusted based on the adjusted predicted operating condition of the turbine component. | 10-28-2010 |
20100280733 | GAS TURBINE SHUTDOWN - A gas turbine includes a rotor, and a controller for controlling a shutdown of the gas turbine based on a target fuel-to-air ratio profile and/or controlling a rotor speed according to a target speed schedule to attain a specified duration for the shutdown. The controller controls the rotor speed by engaging the starting system to turn the rotor. | 11-04-2010 |
20130103323 | TURBINE RADIAL SENSOR MEASUREMENT - A method of measuring parameters of a gas turbine flow path is described. The method includes installing along one or more existing struts in the gas turbine flow path a first plurality of sensors for measuring a first parameter at one or more radial positions along the one or more struts and a second plurality of sensors for measuring a second parameter at one or more radial positions along the one or more struts. The method further includes producing an actual profile of the gas turbine flow path first parameter and second parameter. | 04-25-2013 |
20130152587 | SYSTEM AND METHOD FOR WARMING UP A STEAM TURBINE - A system for warming up a steam turbine includes a gas turbine and a controller operably connected to the gas turbine. The controller is programmed to receive a plurality of measured input signals and control the gas turbine to produce an exhaust having a desired energy. A first measured input signal is reflective of a measured operating parameter of the gas turbine and a second measured input signal is reflective of an operating parameter of the steam turbine. A method for warming up a steam turbine includes sending a plurality of measured input signals to a controller, wherein a first measured input signal reflects a measured operating parameter of a gas turbine and a second measured input signal reflects an operating parameter of the steam turbine. The method further includes controlling the gas turbine based on the plurality of measured input signals and producing an exhaust from the gas turbine, wherein the exhaust has a desired energy. | 06-20-2013 |
20140260312 | SYSTEMS AND METHODS FOR GAS TURBINE TUNING AND CONTROL - A method of tuning a gas turbine includes receiving a first plurality of operating parameters as the gas turbine engine is operated at a first operating state. Further, the method includes operating the gas turbine engine at a second operating state to measure a second plurality of operating parameters at the second operating state. In addition, the method includes operating the gas turbine engine at a third operating state to measure a third plurality of operating parameters at the third operating state, wherein the first, second, and third operating states are different from each other. Additionally, the method includes generating a correction factor based on the first, second, and third plurality of operating parameters. The method also includes adjusting the operation of the gas turbine engine based on the correction factor. | 09-18-2014 |
20150081121 | SYSTEM AND METHOD FOR CONTROLLING OPERATION OF A GAS TURBINE BASED POWER PLANT - A system for controlling a gas turbine power plant includes a plurality of sensors configured to transmit signals indicative of one or more operating parameters of the gas turbine, and a control system in electronic communication with each sensor. The control system is configured to compute cumulative wear for one or more hardware components of the gas turbine based at least in part on the signals. Instructions are inputted into the control system which indicates a desired operational mode for the gas turbine. The control system may then compute a hardware consumption rate based at least in part on the cumulative wear. The hardware consumption rate may then be displayed to an operator via a display device. The operator may use the hardware consumption rate to determine potential economic impact of operating the gas turbine at the desired operational mode. | 03-19-2015 |
Patent application number | Description | Published |
20120012342 | Downhole Packer Having Tandem Packer Elements for Isolating Frac Zones - A tandem packer seals a wellbore annulus with first and second seals. The packer has a body defining a bore therethrough and has a shoulder disposed on the body. A compressible element is disposed on the body adjacent the shoulder. A piston is movably disposed on the body adjacent the compressible element and is activated by fluid pressure communicated through a port in the packer's bore. When actuated, the piston fits between the compressible element and the body to initially expand it outward. With further fluid pressure, the piston compresses the compressible element against the shoulder to expand the element radially outward and produce a first seal with a surrounding surface. A swellable element also disposed on the body is swellable in the presence of an agent and expands radially outward to produce a second seal with the surrounding surface. | 01-19-2012 |
20120012343 | Downhole Packer Having Swellable Sleeve - A packer seals a wellbore annulus. The packer has a body defining a bore therethrough and has a swellable element disposed on the body. An expander movably disposed on the body adjacent the swellable element is actuated by fluid pressure communicated through a port in the body's bore. When actuated, the expander fits between the swellable element and the body to expand the swellable element radially outward an initial expansion amount. While downhole, the swellable element swells in the presence of an agent downhole and expands radially outward a subsequent expansion amount to produce a seal with a surrounding surface. With further fluid pressure, the expander can also compress the swellable element to further increase the expansion amount of the swellable element. | 01-19-2012 |
20130112399 | Erosion Resistant Flow Nozzle for Downhole Tool - An erosion resistant nozzle is brazed to the surface of a tubular, such as a shunt tube of a wellscreen apparatus, for use in a wellbore. The nozzle is elongated and defines an aperture for communicating exiting flow from the tubular's port. The lead end of the nozzle disposed downstream of the exiting flow can be lengthened to prevent erosion to the tubular. The lead endwall of the nozzle's aperture can be angled relative to the nozzle's length and can be rounded. The nozzle can be composed of an erosion resistant material or can be composed of a conventional material having an erosion resistant coating or plating thereon. Being elongated with a low height, the nozzle can have a low profile on the tubular, and the aperture's elongating can be increased or decreased to increase or decrease the flow area through the nozzle. | 05-09-2013 |
20140110112 | Erodable Bridge Plug in Fracturing Applications - In order to overcome the need to remove each packer after a plug and perforate operation in order to produce a well it is desirable to utilize an erodible packer that may allow one way flow. An erodible packer may be constructed of a material such as polyglycolic acid as a binder. The same packer may also allow one way flow past the packer, such as flow from the casing below the packer to the casing above the packer. The packer may erode upon the expiration of a predetermined period of time or upon exposure to an activating agent. | 04-24-2014 |
20140262331 | PLUG AND PERFORATE USING CASING PROFILES - In order to overcome the need to remove each fracturing plug after a plug and perforate operation it is desirable to utilize a profile latch in conjunction with a coupling profile. By having a profile in each coupling or at least in predetermined couplings a tool such as a perforating assembly including a fracturing plug may be precisely placed. A profile in the couplings also provides a means to latch the perforating assembly or other tool securely to the casing without using slips. Such profiles typically provide for securing the tool or perforating assembly in one direction although a particular profile may secure the assembly in place in two directions. By securing the tool or perforating assembly in one direction only the tool may be easily relocated or removed from the casing. | 09-18-2014 |
20140284060 | CASING MOUNTED METERING DEVICE - The present invention relates to an inflow control device for controlling the flow of fluid into a tubular deployed in a wellbore comprising coupling between joints of tubulars. The inflow control device is mounted transversely through the coupling in any inflow can control devices the initial condition fluid flow between the exterior and interior of the tubular is prevented. As sufficient pressure is exerted upon the inflow control device from the interior of the tubular the inflow control device is actuated to allow fluid flow between the interior and exterior the tubular. A nozzle in the inflow control device allows fluid to pass at a preset rate. The present invention furthermore relates to a method of assembling an inflow control device according to the invention and to a completion system comprising an inflow control device according to the invention | 09-25-2014 |
20150096767 | SINGLE SIZE ACTUATOR FOR MULTIPLE SLIDING SLEEVES - A multiplier sleeve has a releasable seat coupled to a dog within the slidable sleeve allows a single sized ball, dart, or plug to actuate several sliding sleeves. Upon actuation by properly sized ball the ball, slidable sleeve, seat, and dog move downward where the dog is no longer supported allowing the seat to move within the slidable sleeve to a point where the seat is no longer supported thereby releasing the ball. With the slidable sleeve moved downward the port or ports in the sliding sleeve is exposed. A staged port and piston assembly inserted into the ports maintain pressure within the tubular assembly to allow the ball to move through and actuate the targeted sliding sleeves. | 04-09-2015 |
Patent application number | Description | Published |
20130274954 | Mobile Asset Data Recorder and Transmitter - An acceleration-based mobile asset data recorder and transmitter equipped with a wireless processing unit, an event recorder, a digital video recorder, a fuel level sensor, and an inertial navigation sensor board. The inertial navigation sensor board includes a 3-axis gyroscope, a 3-axis accelerometer, a 3-axis magnetometer, and a microcontroller. The data recorder and transmitter allows for automatic orientation, automatic compass calibration, fuel compensation with pitch and roll, emergency brake application with impact detection, rough operating condition detection, engine running detection, and inertial navigation of a mobile asset. Users can use the normal operation of their mobile assets to locate and alert, in real-time, areas where their assets are encountering rough operating environments, to provide for quicker emergency response, and to validate the effectiveness of repairs and rerouting. | 10-17-2013 |
Patent application number | Description | Published |
20090259726 | REMOTE ELECTRONIC MAILBOX ACCESS - An apparatus for retrieving electronic mail messages via a wireless network. The apparatus comprises a gateway for sending an electronic mail retrieval reply message to a wireless device in response to receiving an electronic mail retrieval request message from the wireless device. The apparatus further comprises an application module. The application module has computer readable instructions. The computer readable instructions convert the retrieval request message into a format capable of transmission over an external computer network and the computer readable instructions convert the retrieval reply message into a format capable of transmission over a wireless network. | 10-15-2009 |
20110099240 | Apparatus, System and Method for Forwarding Data Sent to a Wireless Device to Another Address - An apparatus for forwarding data sent to a wireless device having a first address to a second address. The apparatus includes a server in communication with a wireless network and an external network. The server includes a processor. The processor includes a data forwarding module for forwarding the data to the second address via the external network when the wireless device is not in communication with the wireless network. | 04-28-2011 |
20120164988 | Local Point of Presence - Systems and techniques for providing a telecommunications service by receiving a request for a telecommunications service from a wireless client, providing a local exchange point of presence to the wireless client in response to the request, and providing the telecommunications service to the wireless client through the local exchange point of presence. The local exchange point of presence may be based on the geographic location of the wireless client. | 06-28-2012 |
20130065598 | Local Point of Presence - Systems and techniques for providing a telecommunications service by receiving a request for a telecommunications service from a wireless client, providing a local exchange point of presence to the wireless client in response to the request, and providing the telecommunications service to the wireless client through the local exchange point of presence. The local exchange point of presence may be based on the geographic location of the wireless client. | 03-14-2013 |
20130275537 | WIRELESS DEVICE ADDRESS BOOK UPDATES - A system for maintaining an address book, wherein the address book includes a plurality of entries with each entry containing contact information and wherein address book updates are transmitted over a wireless network. The system includes a gateway for storing the address book and transmitting the address book updates to a wireless device. | 10-17-2013 |