Patent application number | Description | Published |
20100012313 | DOWNHOLE PIEZOELECTRIC DEVICES - According to one or more aspects of the present disclosure, a piezoelectric pump may include a hydraulic fluid path between a low pressure source and a high pressure tool port; a fluid disposed in the hydraulic fluid path; a piston in communication with the fluid; and a piezoelectric material connected to the piston to pump the fluid through the high pressure tool port. | 01-21-2010 |
20110083859 | DOWNHOLE VALVE - A tool that is usable with a well includes a valve element, a mechanical operator, a pressure chamber and a regulator. The valve element has a first state and a second state. The mechanical operator responds to a predetermined signature in an annulus pressure relative to a baseline level of the annulus pressure to transition the valve element from the first state to the second state. The pressure chamber exerts a chamber pressure to bias the mechanical operator to transition from the second state to the first state. The baseline level is capable of varying over time, and the regulator regulates the chamber pressure based on the baseline level. | 04-14-2011 |
20120059636 | DEVICE AND METHOD TO DETERMINE CONDUCTIVITY FOR HIGH PRESSURE-HIGH TEMPERATURE SERVICE - A method for characterizing one or more properties of a geological formation including brine, the method including inputting at least one first property of the geological formation into an equation of state (EOS) model, the EOS model accounting for a high temperature effect on the brine; solving the EOS model to determine at least one second property of the geological formation; and outputting the at least one second property to a display device. | 03-08-2012 |
20120059640 | THERMODYNAMIC MODELING FOR OPTIMIZED RECOVERY IN SAGD - One or more computer-readable media include computer-executable instructions to instruct a computing system to receive input as to physical characteristics of a resource recovery system and a resource reservoir; simulate fluid thermodynamics of the system and the reservoir; and output information as to phase composition, for example, in at least one dense phase affected by the resource recovery system. Various other apparatuses, systems, methods, etc., are also disclosed. | 03-08-2012 |
20120065951 | METHOD TO PREDICT DENSE HYDROCARBON SATURATIONS FOR HIGH PRESSURE HIGH TEMPERATURE - A method for characterizing one or more properties of a geological formation including brine and a dense vapor phase includes inputting at least one first property of the geological formation including resistivity of a vapor phase into a model including an equation of state (EOS) model, the model accounting for a high temperature effect on the dense vapor where that the dense vapor has a non-infinite resistivity. At least the EOS model is solves to provide data relating to at least one second property of the geological formation. The data relating to the at least one second property is output to a display device for visual inspection. | 03-15-2012 |
20120186825 | Remote Actuation Testing Tool for High Pressure Differential Downhole Environments - A remote actuation tool equipped with an intermediate volumetric mechanism for enhanced tool durability in high pressure differential downhole environments. Valve segments of the tool are actuated by power available due to a pressure differential between atmospheric and hydrostatic chambers of the tool. Yet, the intermediate volumetric mechanism, whether in the form of a discrete chamber or a hydraulic line system, minimizes stresses of the differential pressure on tool hydraulics. Thus, failure rates are substantially reduced. So, for example, the tool may be reliably employed in downhole environments which present differential pressures in excess of about 30,000 PSI. | 07-26-2012 |
20130126191 | INFLATABLE PACKER ASSEMBLY - Conventional formation evaluation with dual inflatable packers includes the steps of pressurizing the packers so as to isolate an annular portion of the borehole wall, collecting one or more samples of formation fluid via the isolated portion of the borehole wall, and depressurizing the packers so as to permit movement of the mandrel within the borehole. A sampling method and apparatus that utilize one or more of the following to advantage is provided: restricting deformation of the packers during inflation using an annular bracing assembly; actively retracting the packers using ambient borehole pressure; and substantially centralizing the mandrel intermediate the packers so as to resist buckling of the mandrel. | 05-23-2013 |
20130289961 | Methods For Producing Fluids From Geological Formation - Embodiments disclosed herein relate to reservoir characterization techniques and methods for accurately predicting scale tendencies of formation fluids, developed with the newly discovered phenomena that extreme downhole conditions affect the properties of reservoir fluids, including both the brine and dense hydrocarbon gas phases. In one aspect, there is disclosed a method for producing fluids from a geological formation. The method comprises inputting at least one property of a geological formation into an equation of state (EOS) model. The EOS model accounts for bound water, a high temperature effect on the brine and a high temperature effect on the dense gas phase. The EOS model is solved to determine a character of fluids contained in the geological formation, and inputting a production condition or a plurality of production conditions into the EOS model. A character of the fluids is determined based on the determined character of the fluids in the geological formation and the input production conditions. The solution can be output to a display device. Planning of the production of fluids from the geological formation can be performed. Production conditions can be controlled or adjusted. | 10-31-2013 |
20130327539 | DOWNHOLE VALVE - A tool that is usable with a well includes a valve element, a mechanical operator, a pressure chamber and a regulator. The valve element has a first state and a second state. The mechanical operator responds to a predetermined signature in an annulus pressure relative to a baseline level of the annulus pressure to transition the valve element from the first state to the second state. The pressure chamber exerts a chamber pressure to bias the mechanical operator to transition from the second state to the first state. The baseline level is capable of varying over time, and the regulator regulates the chamber pressure based on the baseline level. | 12-12-2013 |
Patent application number | Description | Published |
20100018704 | FORMATION FLUID SAMPLING APPARATUS AND METHODS - A fluid sampling system retrieves a formation fluid sample from a formation surrounding a wellbore extending along a wellbore axis, wherein the formation has a virgin fluid and a contaminated fluid therein. The system includes a sample inlet, a first guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a first direction along the wellbore axis, and a second guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a second, opposite direction along the wellbore axis. At least one cleanup flowline is fluidly connected to the first and second guard inlets for passing contaminated fluid, and an evaluation flowline is fluidly connected to the sample inlet for collecting virgin fluid. | 01-28-2010 |
20100170682 | INFLATABLE PACKER ASSEMBLY - Conventional formation evaluation with dual inflatable packers includes the steps of pressurizing the packers so as to isolate an annular portion of the borehole wall, collecting one or more samples of formation fluid via the isolated portion of the borehole wall, and depressurizing the packers so as to permit movement of the mandrel within the borehole. A sampling method and apparatus that utilize one or more of the following to advantage is provided: restricting deformation of the packers during inflation using an annular bracing assembly; actively retracting the packers using ambient borehole pressure; and substantially centralizing the mandrel intermediate the packers so as to resist buckling of the mandrel. | 07-08-2010 |
20100300677 | MODULAR POWER SOURCE FOR SUBSURFACE SYSTEMS - An electrical power system comprising a support configured for interconnection within a subsurface drillstring, an electrical power unit coupled to the support, and a conductive link configured to distribute electrical power from the electrical power unit to at least one component coupled to the electrical power system within the subsurface drillstring. | 12-02-2010 |
Patent application number | Description | Published |
20090211080 | METHOD AND APPARATUS FOR SHIMMING A MAGNET - In a method of producing a shim, for each of several layers, a first layer of powdered magnetic material is deposited, and selectively bonding together in regions of the layer where presence of the magnetic material is required. Unbonded powdered magnetic material is removed from the layer, to leave gaps. A powdered magnetically inert material is deposited into the gaps and bonded together in regions of the layer where presence of the magnetic material is not required. | 08-27-2009 |
20130219701 | ADHESIVELY BONDED CYLINDRICAL MAGNETS COMPRISING ANNULAR COILS, AND METHOD OF MANUFACTURE THEREOF - In a solenoid magnet assembly, and a method for manufacture thereof, the magnet assembly includes a number of concentrically aligned coils, each including a winding impregnated with a resin. Each coil is mechanically restrained so as to hold the coils in fixed relative positions relative to each other when forming the magnet assembly. The mechanical restraint can be formed by annular support sections bonded to the respective coils, lugs bonded to the respective coils, or by lugs that are at least partially embedded in a crust formed on a radially outer surface of the respective windings. | 08-29-2013 |
20150061801 | ADHESIVELY BONDED CYLINDRICAL MAGNETS COMPRISING ANNULAR COILS, AND METHOD OF MANUFACTURE THEREOF - In a solenoid magnet assembly, and a method for manufacture thereof, the magnet assembly includes a number of concentrically aligned coils, each including a winding impregnated with a resin. Each coil is mechanically restrained so as to hold the coils in fixed relative positions relative to each other when forming the magnet assembly. The mechanical restraint can be formed by annular support sections bonded to the respective coils, lugs bonded to the respective coils, or by lugs that are at least partially embedded in a crust formed on a radially outer surface of the respective windings. | 03-05-2015 |