Patent application number | Description | Published |
20150308191 | SYSTEM AND METHOD FOR MONITORING DRILLING SYSTEMS - The present disclosure provides methods and systems for monitoring a drilling system, including methods and systems for estimating the life consumption of downhole drilling tools. The system employs a plurality of sensors that provide sensor signals related to the status of components in the drilling system. The sensor signals are analyzed using Functional Principal Component Analysis (FPCA) to give estimations for one or more performance metrics, including the life consumption of downhole drilling tools. | 10-29-2015 |
20150308237 | SYSTEM AND METHOD FOR MANAGED PRESSURE DRILLING - The present disclosure provides a managed pressure drilling (MPD) system and methods for assessing and optimizing. For example, reliability models such as Failure Modes and Effects Analysis (FMEA), Fault Tree Analysis (FTA), Ishikawa diagram, Pareto chart, Reliability Block Diagram (RBD) are used in assessing the system reliability. The MPD drilling system is suitable for offshore drilling operations. | 10-29-2015 |
20150313010 | ELECTRONIC DEVICES FOR HIGH TEMPERATURE DRILLING OPERATIONS - The present disclosure provides the printed circuit board assembly suitable for operating downhole at high temperatures. The printed circuit board assembly has a ceramic circuit board with a plurality of chips installed on it. At least one of the chips has an aluminum nitride or a silicon nitride substrate. In some of the chips, aluminum nitride is used as the oxide layer in a Si-on-Insulator configuration. In other chips, integrated circuits are fabricated on a substrate made from aluminum nitride, silicon nitride, silicon carbide, or sapphire. | 10-29-2015 |
Patent application number | Description | Published |
20130167420 | Self-Levering Follower For A Universal Magazine Of Multiple Caliber Compatibility For Firearms - A magazine for a firearm comprises a magazine shell, a main magazine spring, and a follower assembly. The follower assembly is disposed inside the magazine shell and movable generally along a longitudinal axis of the magazine shell. The follower assembly includes a non-tilt-able piece coupled to a first end of the main magazine spring and having a first end and a second end opposite the first end. The follower assembly also includes a tilt-able piece having a first end and a second end opposite the first end. A middle portion of the tilt-able piece is pivot-ably coupled to a middle portion of the non-tilt-able piece. The follower assembly further includes an elastic element that is elastically disposed between the non-tilt-able piece and the tilt-able piece and exerting a force on the non-tilt-able piece and the tilt-able piece. | 07-04-2013 |
20130167421 | Magazine Shell Of A Universal Magazine Of Multiple Caliber Compatibility For Firearms - A magazine for a firearm comprises a magazine shell and a main magazine spring. The magazine shell includes a first end, a second end opposite the first end, and sidewalls between the first end and the second end. The first end includes an opening and is configured to attach to the firearm. The second end includes a bottom plate. The main magazine spring includes a first end and a second end opposite the first end. The second end of the main magazine spring is coupled to the bottom plate of the second end of the magazine shell. | 07-04-2013 |
20140366417 | Magazine Shell Of A Universal Magazine Of Multiple Caliber Compatibility For Firearms - Various embodiments of a magazine for a firearm are described. In one aspect, a magazine for a firearm may include a magazine shell having a first end, a second end opposite the first end, and a plurality of sidewalls between the first end and the second end. The first end may have an opening and may be configured to attach to the firearm. The second end may include a bottom plate. At least a first primary sidewall of the sidewalls may include a deformable concave area that caves inward with respect to the magazine shell such that the concave area bulges outward with respect to the magazine shell to accommodate one or more ammunition cartridges with of a first caliber and that the concave area does not bulge outward to accommodate one or more ammunition cartridges of a second caliber smaller than the first caliber. | 12-18-2014 |
20150268459 | Linear Power Adjustment Mechanism For Telescopic Sights For Firearms - A telescopic sight for a firearm includes a scope tube, first and second optical lenses, an eyepiece set and a linear power adjustment mechanism. The optical lenses are contained in the scope tube and configured to move along a longitudinal axis of the scope tube. The eyepiece set is coupled to one end of the scope tube. The linear power adjustment mechanism adjusts zooming power of the telescopic sight, and includes a zoom cam tube and a lever that are contained in the zoom cam tube. The lever is coupled to rotate the zoom cam tube. When actuated, the lever moves linearly along a direction parallel to the longitudinal axis of the scope tube such that a distance between the first and the second optical lenses along the longitudinal axis of the scope tube to change to adjust a zooming power of the telescopic sight. | 09-24-2015 |
Patent application number | Description | Published |
20110130850 | APPARATUS AND METHOD FOR MODEL QUALITY ESTIMATION AND MODEL ADAPTATION IN MULTIVARIABLE PROCESS CONTROL - Apparatuses and methods for model quality estimation and model adaptation in multivariable process control are disclosed. A method for updating a multiple input multiple output (MIMO) dynamical model of a process includes perturbing the process, auditing the controller model, identifying poor performing submodels and re-testing the relevant process variables, re-identifying submodels and adapting the model online while the process continues to operate within normal operating parameters. An apparatus comprises an online multivariable controller, a tester, a database to store data corresponding to manipulated variables and controlled variables, and a performance diagnosis module configured to identify problematic submodels and adapt a model used by the controller. | 06-02-2011 |
20130204403 | Apparatus and Methods for Non-Invasive Closed Loop Step Testing Using a Tunable Trade-Off Factor - An integrated multivariable predictive controller (MPC) and tester is disclosed. The invention system provides optimal control and step testing of a multivariable dynamic process using a small amplitude step for model identification purposes, without moving too far from optimal control targets. A tunable parameter specifies the trade-off between optimal process operation and minimum movement of process variables, establishing a middle ground between running a MPC on the Minimum Cost setting and the Minimum Move setting. Exploiting this middle ground, embodiments carry out low amplitude step testing near the optimal steady state solution, such that the data is suitable for modeling purposes. The new system decides when the MPC should run in optimization mode and when it can run in constrained step testing mode. The invention system determines when and how big the superimposed step testing signals can be, such that the temporary optimization give-away is constrained to an acceptable range. | 08-08-2013 |
20150316905 | ONLINE CONTROL CALCULATION FOR MODELS CONTAINING NEAR COLINEARITY AND UNCERTAINTY - A method, apparatus, and computer program product for increasing closed-loop stability in a MPC controller controlling a process where there are significant uncertainties in the model used by the controller. This invention focuses on the improvement of the robustness of the steady-state target calculation. This is achieved through the use of a user defined robustness factor, which is then used to calculate an economic objective function giveaway tolerance and controlled variable constraint violation tolerance. The calculation engine uses these tolerances to find a solution that minimize the target changes between control cycles and prevent weak direction moves caused by near collinearity in the model. If the controller continues to exhibit large variations in the process, it can slow down the manipulated variable movement to stabilize the process. | 11-05-2015 |
Patent application number | Description | Published |
20120318531 | Pressure Pulse Driven Friction Reduction - A method for reducing friction between a coiled tubing and a wellbore includes: generating a periodic pressure wave; coupling the periodic pressure wave to a coiled tubing in a wellbore; and propagating the periodic pressure change in the coiled tubing wherein a friction force between the coiled tubing and the wellbore is reduced. The shape of the periodic pressure wave can be modulated to a form similar to that of a sinusoidal waveform. | 12-20-2012 |
20130186619 | METHOD AND APPARATUS OF DISTRIBUTED SYSTEMS FOR EXTENDING REACH IN OILFIELD APPLICATIONS - Apparatus and a method for delivering a rod in a cylinder including propagating a rod in a cylinder along the interior of the cylinder, and introducing a motion in an orientation orthogonal to a length of the rod, wherein the motion comprises multiple motion sources along the length of the rod, and wherein the multiple motion sources comprise a control system that controls at least one of the motion sources. An apparatus and method for delivering a rod in a cylinder including a cylinder comprising a deviated portion, a rod comprising a length within the cylinder, multiple motion sources positioned along the length of the rod, and a control system in communication with at least one of the motion sources, wherein the control system controls the location of frictional contact between the rod and cylinder over time. | 07-25-2013 |
20130246029 | TECHNIQUE FOR ESTABLISHING PREDICTIVE REACH THROUGH A DEVIATED WELL - A method of estimating extended reach for a downhole line traversing a deviated section of a well. The method may include storing line and well architectural and physical data and then performing a static analysis of substantially axial-exclusive estimated friction between the line and well wall during conveyance (which may be thought of as the contact force due to interference therebetween). A one dimensional dynamic analysis may then be performed. Thus, based on these factors, speed of the conveyance, vibration parameters of an incorporated vibration tool, etc., an efficient simulation of the conveyance may be run. | 09-19-2013 |
20140126330 | COILED TUBING CONDITION MONITORING SYSTEM - A system and techniques for acoustically establishing the onset of an emergent condition relative coiled tubing in a well. The system may include fiber optic line run through the coiled tubing for sake of vibration detection in coiled tubing indicative of buckling, structural defects or other downhole coiled tubing conditions. Thus, application optimization action may be undertaken in a manner that enhances coiled tubing operational efficacy. | 05-08-2014 |
20140174722 | Extended Reach Well System - A system and methodology facilitates extending the reach of coiled tubing during a well operation. The technique employs tubing which is deployed along wellbore. A plurality of extended reach devices is positioned along the tubing. Each extended reach device has at least one internal guide member oriented for extension into an interior of the tubing. The guide member engages and guides the coiled tubing during movement of the coiled tubing along the interior of the tubing, thus enabling an extended reach during a wellbore servicing application. | 06-26-2014 |
20140174726 | SYSTEM AND METHOD FOR PROVIDING OSCILLATION DOWNHOLE - A technique employs the use of oscillations downhole to facilitate a desired functionality of a downhole tool. According to this technique, a tool is initially conveyed downhole and operated to perform a function that relates to a downhole application. The operational efficiency of the tool is improved by creating oscillating forces which vibrate the tool to achieve a desired result, e.g. freeing the tool from a stuck position. | 06-26-2014 |
20140207390 | Coiled Tubing Useful Life Monitor And Technique - A system and technique for dynamically and historically evaluating useful life of coiled tubing. Methods are detailed wherein a monitor and system are equipped for enhanced evaluating of coiled tubing fatigue life based in part on the orientation of the coiled tubing during use. This may be obtained through the tracking of a seamweld of the coiled tubing. Additionally, reliability of the coiled tubing over various uses may be determined on an ongoing basis as a result of acoustically acquired data during operations. In either case, the monitor may be of a magnetic flux data detection variety. | 07-24-2014 |
20140327443 | OBJECT DETECTION SYSTEM AND METHODOLOGY - A technique facilitates detection of an object passing along a conduit, such as a wellbore conduit. The object is released into an internal passage of the conduit, and the conduit is monitored at a given location or locations along the conduit. Movement of the object past the location or locations is detected by a sensor, such as a sensor positioned externally with respect to the internal passage of the conduit. Passage of the object is monitored via detection of a unique electro-magnetic signature as the object moves along the interior of the conduit and past the location. | 11-06-2014 |
20150377012 | Anomaly Recognition System And Methodology - A technique facilitates anomaly recognition and tracking in a variety of components, such as tubular components. The technique comprises sensing for anomalies in the component, and storing detected anomalies in a storage medium. The detected anomalies are matched with stored digital descriptions of anomalies. The stored digital descriptions may comprise anomalies of similar types and/or anomalies detected on the specific component being tested. The detected anomalies are ranked according to similarities with respect to the stored digital descriptions. | 12-31-2015 |
Patent application number | Description | Published |
20110092755 | Production of Para-Xylene by the Methylation of Benzene and/or Toluene - In a process for the production of para-xylene, methanol is preheated to a first temperature, an aromatic feedstock comprising toluene and/or benzene is preheated to a second temperature and the preheated methanol and aromatic feedstocks are fed to a reactor at a first methanol to aromatic feedstock molar ratio. The preheated aromatic feedstock is contacted with the preheated methanol under alkylation conditions in the reactor in the presence of a catalyst so that the methanol reacts with the aromatic feedstock to produce an effluent comprising para-xylene. During the reaction, a temperature is measured within the reactor and is compared with a predetermined optimal temperature. The methanol to aromatic feedstock molar ratio is then adjusted in a manner to reduce any difference between the measured and predetermined optimal temperatures in the reactor. | 04-21-2011 |
20120083637 | Regeneration of Metal-Containing Catalysts - In a process for the regeneration of a coked metal-containing catalyst, the coked catalyst is contacted in a regeneration zone with an atmosphere which contains carbon dioxide and carbon monoxide at a temperature of at least 400° C. | 04-05-2012 |
20120316375 | Production of Para-Xylene - The invention is a process for producing paraxylene, benzene and/or toluene is alkylated with methanol in the presence of a catalyst under conditions effective to convert said benzene and/or toluene to xylene and produce a product stream containing water, xylene and one or more phenolic impurities. The said product stream is separated into a water-rich stream and a xylene-rich stream containing one or more phenolic impurities and at least a portion of the xylene-rich stream is contacted with an aqueous solution of a base under conditions to remove at least some of the phenolic impurities from the xylene-rich stream portion. | 12-13-2012 |
20130217940 | Alkylation of Benzene and/or Toluene with Methanol - The present inventors have surprisingly discovered that paraxylene selectivity is found to increase as the amount of coke on catalyst increases. In embodiments the paraxylene selectivity and productivity is maximized by controlling the amount of coke on the catalyst while maintaining xylene yield at an acceptable value. The control of coke may be achieved by one or a combination of the following techniques: increasing catalyst on-oil time, decreasing catalyst residence time in the regenerator, reducing the air or oxygen supply to the regenerator, and decreasing catalyst circulation rate, or a combination thereof. | 08-22-2013 |
20130253245 | Alkylation Process - The invention relates to the production of paraxylene by an alkylation process that also produces oxygenates. The process is controlled to utilize recycle to minimize said oxygenates. | 09-26-2013 |
20130296622 | Process for the Production of Xylenes and Light Olefins - In a hydrocarbon upgrading process, a hydrocarbon feed is treated in at least one of a steam cracker, catalytic cracker, coker, hydrocracker, and reformer under suitable conditions to produce a first stream comprising olefinic and aromatic hydrocarbons. A second stream composed mainly of C | 11-07-2013 |
20160046544 | Aromatics Production Process - In a process for producing para-xylene, at least one feed comprising C | 02-18-2016 |
20160059224 | Method and Catalyst System for the Production of Para-Xylene - A catalyst system is disclosed for producing para-xylene from a C | 03-03-2016 |
20160074845 | In-situ Trim Coke Selectivation of Toluene Disproportionation Catalyst - The invention relates to treating a molecular sieve prepared by at least one in situ selectivation sequence wherein graphitic coke is adhered to said molecular sieve, which is useful in a toluene disproportionation process. | 03-17-2016 |
20160075618 | Transalkylation System - The invention relates to a transalkylation system to convert feedstreams containing benzene and/or toluene (C7− aromatic hydrocarbons) and feedstreams containing C9+ aromatic hydrocarbons into a product stream comprising xylenes. | 03-17-2016 |
Patent application number | Description | Published |
20100268179 | REDUCED PRESSURE TREATMENT SYSTEM HAVING BLOCKAGE CLEARING AND DUAL-ZONE PRESSURE PROTECTION CAPABILITIES - A method of treating a tissue site is provided. The method includes applying a reduced pressure to a tissue site with a reduced pressure source. A source pressure is monitored at the reduced pressure source, and a differential pressure is determined between the source pressure and the desired tissue site pressure. If a blockage is present between the reduced pressure source and the tissue site, the differential pressure is limited to a first maximum differential pressure. If no blockage is present between the reduced pressure source and the tissue site, the differential pressure is limited to a second maximum differential pressure. | 10-21-2010 |
20140135719 | WOUND EXUDATE REMOVAL AND ISOLATION SYSTEM - A wound exudate removal and isolation system includes a porous dressing, a canister in fluid communication with the dressing, and a first valve positioned between the dressing and the canister. The first valve is positionable between an open position and a closed position. A disposal line is fluidly connected to the canister and includes a second valve that is positionable between an open position and a closed position. A pump is fluidly connected to the canister and is configured to draw wound exudate from the dressing into the canister when the first valve is open and the second valve is closed. The pump is configured to force wound exudate from the canister into the disposal line when the first valve is closed and the second valve is open. | 05-15-2014 |
20150073363 | REDUCED PRESSURE TREATMENT SYSTEM HAVING BLOCKAGE CLEARING AND DUAL-ZONE PRESSURE PROTECTION CAPABILITIES - A method of treating a tissue site is provided. The method includes applying a reduced pressure to a tissue site with a reduced pressure source. A source pressure is monitored at the reduced pressure source, and a differential pressure is determined between the source pressure and the desired tissue site pressure. If a blockage is present between the reduced pressure source and the tissue site, the differential pressure is limited to a first maximum differential pressure. If no blockage is present between the reduced pressure source and the tissue site, the differential pressure is limited to a second maximum differential pressure. | 03-12-2015 |
Patent application number | Description | Published |
20080298174 | Method for determining seismic anisotropy - The method disclosed is useful for estimating anisotropic properties of an earth formation. The method includes extracting travel time values of components of the acoustic wave induced from a downhole tool and reflected from a boundary bed formation. The method further includes obtaining a travel time ratio of the wave components and using the travel time ratio to estimate the anisotropic properties of the formation. | 12-04-2008 |
20090107757 | Acoustic Isolator - An acoustic isolator for use with downhole subterranean exploration and production operations, where the operations transmit acoustic signals into a subterranean formation. The acoustic isolator comprises a series of threaded fittings and is disposed on a downhole tool between a transmitter and a receiver. The acoustic isolator substantially attenuates the acoustic signal along the body and minimizes its effect on the receiver. | 04-30-2009 |
20090185446 | Identification of Stress in Formations Using Angles of Fast and Slow Dipole Waves in Borehole Acoustic Logging - Cross-dipole measurements are obtained in a borehole. By estimating a direction of polarization of the fast shear mode at low and high frequencies and comparing the estimated distances, a cause of anisotropy is established. Formation stresses and directions may be estimated. | 07-23-2009 |
20090205899 | Acoustic Imaging Away From the Borehole Using a Low-Frequency Quadrupole Excitation - Acoustic measurements made in a borehole using a multipole source are used for imaging a near-borehole geological formation structure and determination of its orientation. The signal to noise ratio (as defined by the ratio of the signal radiated into the formation to the axially propagating signal) depends upon the type of source (force or volume) and its position in the borehole (on the tool, in the fluid or on the borehole wall). | 08-20-2009 |
20130070560 | Arranging Source-Receiver Orientations to Reduce High-Order Modes in Acoustic Monopole Logging - The present disclosure relates to methods and apparatuses for estimating a parameter of interest of an earth formation. The method may include using an acoustic sensor azimuthally positioned relative to a monopole acoustic source to reduce at least one high-order mode due to the monopole acoustic source. The monopole acoustic source may include one or more acoustic elements. The method may include generating a monopole acoustic pulse. The apparatus may include at least one acoustic source element and at least one acoustic sensor disposed on a housing configured for conveyance in a borehole. The at least one acoustic sensor may be azimuthally positioned relative to the at least one acoustic source to reduce at least one high-order mode. | 03-21-2013 |