Patent application number | Description | Published |
20090050374 | Method and apparatus for managing variable density drilling mud - A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore. The variable density drilling mud has compressible particles and drilling fluid. The bottom hole assembly is coupled to the drilling pipe while the drilling mud processing unit is configured to separate the compressible particles from the variable density drilling mud. The compressible particles in this embodiment may include compressible hollow objects filled with pressurized gas an configured to maintain the mud weight between the fracture pressure gradient and the pore pressure gradient. In addition, the system and method may also manage the use of compressible particles having different characteristics, such as size, during the drilling operations. | 02-26-2009 |
20090084604 | COMPRESSIBLE OBJECTS HAVING PARTIAL FOAM INTERIORS COMBINED WITH A DRILLING FLUID TO FORM A VARIABLE DENSITY DRILLING MUD - A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The interior region of the shell is at least partially filled with a foam. The internal pressure of the compressible object may be greater than about 200 psi (pounds per square inch) at atmospheric pressure, greater than 500 psi at atmospheric pressure, greater than 1500 psi at atmospheric pressure or more preferably greater than 2000 psi at atmospheric pressure. | 04-02-2009 |
20090090558 | Compressible Objects Having A Predetermined Internal Pressure Combined With A Drilling Fluid To Form A Variable Density Drilling Mud - A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. Also, the compressible object has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object and wherein the shell being designed to reduce localized strains of the compressible object during expansion and compression of the compressible object. | 04-09-2009 |
20090090559 | COMPRESSIBLE OBJECTS COMBINED WITH A DRILLING FLUID TO FORM A VARIABLE DENSITY DRILLING MUD - A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The shell experiences less strain when the external pressure is about equal to the internal pressure than when the external pressure is above or below a predetermined compression interval of the compressible object includes a shell that encloses an interior region. | 04-09-2009 |
20090091053 | METHOD FOR FABRICATING COMPRESSIBLE OBJECTS FOR A VARIABLE DENSITY DRILLING MUD - Methods for fabricating compressible object are described. These compressible objects may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The method includes selecting an architecture for a compressible object; selecting a wall material for the compressible object; and fabricating the compressible object, wherein the compressible object has a shell that encloses an interior region, and has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object. | 04-09-2009 |
20100116553 | Method and Apparatus For Managing Variable Density Drilling Mud - A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore. The variable density drilling mud has compressible particles and drilling fluid. The bottom hole assembly is coupled to the drilling pipe, while the drilling mud processing unit is configured to separate the compressible particles from the variable density drilling mud. The compressible particles in this embodiment may include compressible hollow objects filled with pressurized gas and configured to maintain the mud weight between the fracture pressure gradient and the pore pressure gradient. In addition, the system and method may also manage the use of compressible particles having different characteristics, such as size, during the drilling operations. | 05-13-2010 |
20120223450 | Systems and Methods For Forming High Performance Compressible Objects - The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization. | 09-06-2012 |
20120225799 | Systems and Methods For Forming High Performance Compressible Objects - The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization. | 09-06-2012 |
20120231979 | Systems and Methods For Forming High Performance Compressible Objects - The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization. | 09-13-2012 |
20140157986 | DDR TYPE ZEOLITES WITH STABILIZED ADSORPTION - Methods are provided for forming zeolite crystals suitable for gas phase separations with transport characteristics that are stable over time. The zeolitic materials and/or corresponding methods of synthesis or treatment described herein provide for improved stability in the early stages of process operation for some types of gas phase separations. The methods allow for synthesis of DDR type zeolites that have reduced contents of alkali metal impurities. The synthetic methods for reducing the non-framework alkali metal atom or cation impurity content appear to have little or no impact on the DDR crystal structure and morphology. | 06-12-2014 |
20140161717 | SYNTHESIS OF ZSM-58 CRYSTALS WITH IMPROVED MORPHOLOGY - Methods are provided for synthesizing ZSM-58 crystals with an improved morphology and/or an improved size distribution. By controlling the conditions during synthesis of the ZSM-58 crystals, crystals of a useful size with a narrow size distribution can be generated. Additionally, by controlling the ratio of water content to silica content in the synthesis mixture, it has unexpectedly been found that ZSM-58 crystals can be formed with an improved morphology. The improved morphology can result in ZSM-58 crystals with a more uniform size across the various dimensions of the crystal, which allows for more uniform diffusion within the crystal. This is in contrast to conventionally synthesized crystals, where the size of the crystal can vary along different axes of the crystals. | 06-12-2014 |
20150060074 | Methods and Fluid Compositions for Creating a Wellbore - An operations fluid composition for operations on wells associated with the production of hydrocarbons, the fluid composition comprising: not less than 40 wt % of hydrocarbon fluid, based upon the total weight of the fluid composition; water; and from 0.1 to 10 wt % of a surfactant selected from alkyl acid surfactant, based upon the total weight of water in the fluid composition. Method for using the same are also disclosed. | 03-05-2015 |
20150065399 | Methods and Compositions for Enhanced Acid Stimulation of Carbonate and Sand Stone Formations - An operations fluid is provided for treatment operations on wellbores associated with hydrocarbon production, the operations fluid comprising: water, an inorganic primary acid; and an alkyl acid surfactant. The alkyl acid surfactant has the general formula {R—X}, wherein R comprises at least one of linear and branched alkyl and alkyl aryl hydrocarbon chains and X comprises an acid, and X may comprise an acid selected from the group comprising sulfonic acids, carboxylic acids, phosphoric acids, and mixtures thereof. The alkyl acid may include an acid selected from the group consisting of alkyl or alkyl aryl acids. The operations fluid may be useful in treatment operations related to formation stimulation or mitigation of non-aqueous filter cakes (NAF) and/or formation invasion by NAF drilling fluids. | 03-05-2015 |
Patent application number | Description | Published |
20080240932 | Pump, real-time, general and incremental condition diagnosis - A method and system for diagnosing a condition of a positive displacement hydraulic delivery system or pump. The method includes determining a reference polar guide of torque and/or velocity and/or energy profile(s) of the pump from a back electromotive force of a motor driving the pump, determining an angular displacement of an input shaft of the pump, comparing and storing the torque and/or velocity and/or energy profile(s) and the angular displacement of the input shaft in a processor within the motor drive, analyzing the torque and/or velocity and/or energy profile(s), thereby detecting any defect in the pump condition, and identifying a position of the defect based on the angular displacement of the input shaft of the pump. | 10-02-2008 |
20090220352 | Method and Device for Monitoring and Controlling a Hydraulic Actuated Process - A method and system for monitoring and controlling a hydraulic pump condition. More specifically, the invention relates to a method and device for monitoring and controlling a hydraulic actuated process indirectly by monitoring and controlling an electric motor driving a positive displacement hydraulic pump. This invention also relates to a precision hydraulic energy delivery system. Direct coupling of the pump to a primary mover (motor) and related motor control allows for complete motion control of a hydraulically driven machine without the use of any downstream devices. By employing motion control algorithms in the motor control, the hydraulic output at the pump head is controlled in a feed forward method. | 09-03-2009 |
20100101298 | Dynamic Centering Fixture with Hydraulic Load Delivery Compensation - A dynamic centering apparatus, suitable for centering a workpiece on a work surface, comprising a plurality of hydraulic actuators coupled to individual cells of a hydraulic pump. | 04-29-2010 |