Zhang, Houston
Barry Fen Zhang, Houston, TX US
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20140025301 | DETERMINATION OF SUBSURFACE PROPERTIES OF A WELL - Embodiments of the present invention provide techniques for using data from a select set of wells to develop correlations between surface-measured properties and properties typically determined from subsurface measurements (e.g., from logging tool responses, core analysis, or other subsurface measurements). When new wells are drilled, the surface data acquired while drilling may be used as an input to these correlations in order to predict properties associated with subsurface measurements. | 01-23-2014 |
Dagang Zhang, Houston, TX US
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20150233805 | BENDING TESTING - Apparatus and methods related to bending testing are described. For example, some embodiments may contain a clamp with pivot pin, pellet, tensioning device, and supporting platform, which can be used for testing the bending characteristics, such as bending stiffness, of a testing sample, which can be slender structures such as umbilicals, flexibles, and rigid pipes. | 08-20-2015 |
20150240574 | CATENARY RISER TESTING - Apparatus and methods related to catenary riser testing are described. For example, some embodiments may contain a ground platform, elevated deck, a catenary-shaped testing sample, a fixed clamp on one end of the testing sample and a rotatable clamp on the other end of the testing sample, and a plurality of hydraulic cylinders for controlling the vertical and horizontal positions and motions of the elevated deck and the positions and rotations of the rotatable clamp, for analyzing the characteristics of the testing sample, such as its touchdown point dynamic motions and stresses. | 08-27-2015 |
20150253228 | FATIGUE TESTING - Apparatus and methods related to fatigue testing are described. For example, some embodiments may contain a terminal fixer, a terminal support, a bending machine, and a stress-strain collector, and may be used for testing fatigue properties of offshore pipes, risers and their connectors. Some embodiments may be used to apply extruding, twisting and high frequency bending to the testing sample during one testing period, so that the various fatigue properties of the testing sample can be obtained. | 09-10-2015 |
20150260032 | UMBILICAL BUCKLING TESTING - Apparatus and methods related to umbilical buckling testing are described. For example, some embodiments may contain two damps, a plurality of test fittings, one or more pressure gages, a hydraulic cylinder, and a testing platform, and may be used for testing the umbilical buckling behavior and capacity of an umbilical testing sample. | 09-17-2015 |
20150276570 | UMBILICAL BEND-TESTING - Apparatus and methods related to umbilical bend-testing are described. For example, some embodiments may contain a three-level support structure, umbilical terminal locker, bending machine, compression testing device, and stress-strain collection system, and may be used for the bending fatigue endurance test for umbilical samples. | 10-01-2015 |
20150285706 | DAMPING TESTING - Apparatus and methods related to damping testing are disclosed. For example, some embodiments may contain a testing platform supported on wheels and moveable by hydraulic cylinders, and two fasteners for fastening the testing sample, one fixed on the testing platform and the other moveable along the testing platform by another hydraulic cylinder, and may be used for the damping testing of slender structures such as umbilicals and flexibles used in oil and gas underwater field development. | 10-08-2015 |
20150337988 | PIPELINE FREESPAN SUPPORT - Apparatus and methods related to pipeline freespan support are described. For example, some embodiments may contain an upper structure, which contains at least four legs connected to one another by a number of bracing members, and a number of attachment points through which the upper structure can be lifted, and a lower structure, which contains at least four posts that can be connected to, and disconnected from as needed, the four legs of the upper structure, two spaced mud mats on which the posts stand, and at least two horizontal arms that can be attached to the posts, rotate about the posts, connect to and be locked with the posts on the other mud mat, and be lifted to an appropriate height to provide suitable support at the pipeline freespan location. | 11-26-2015 |
20160025532 | FLOW RATE TESTING - Apparatus and methods related to flow rate testing are described. For example, some embodiments may contain a hydraulic power unit, a flow meter, a pressure gauge, an accelerometer, a reservoir containing testing fluid, two fitting connections, and hoses for interconnecting the components in a closed loop, for testing flow rate through a tube and pinpointing the obstruction location inside the tube. | 01-28-2016 |
Daili Zhang, Houston, TX US
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20140121935 | Model Based Control Tuning Process for Gas Turbines - Systems and methods for model based control tuning for gas turbine systems. In one embodiment, a nonlinear optimization process with multiple nonlinear constraints can create a set of control schedules that can work across an ambient range based on specific unit characteristics derived from a single test ambient. As part of model based control for a gas turbine system, all of the control schedules can be defined based on a nominal unit. Multiple control loops may be active across the ambient range with each control loop being active at a different ambient condition. This tuning process can provide a set of control schedules to provide improved performance for a specific gas turbine system or unit over a wide operation range. | 05-01-2014 |
David Yu Zhang, Houston, TX US
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20140302486 | SYSTEMS AND METHODS FOR DETECTING BIOMARKERS OF INTEREST - A detection probe for detecting single base mutations or alterations in a double stranded target nucleic acid molecule is provided. In some aspects, the detection probe may include a double-stranded probe nucleic acid molecule having a first end and a second end; at least one probe initiation toehold at the first end; at least one substance capable of emitting a detectable signal at the second end; and optionally, at least one dissociation toehold at the second end. The detection probe is designed to hybridize with a double stranded target nucleic acid in a reaction which proceeds at approximate thermodynamic equilibrium (ΔG≈0) when no single base mutations or alterations are present in the double stranded target nucleic acid molecule. The probe may be used in detection systems and methods to identifying the presence or absence of one or more single base mutations or alterations in a double-stranded nucleic acid target molecule. | 10-09-2014 |
20140303320 | COMPOSITIONS AND METHODS FOR SELF-ASSEMBLY OF POLYMERS WITH COMPLEMENTARY MACROSCOPIC AND MICROSCOPIC SCALE UNITS - The invention provides compositions and methods relating to self-assembly of structures of various size and shape completxity. The composition include synthetic single-stranded polymers having a backbone and pre-determined linear arrangement of monomers. | 10-09-2014 |
20150152491 | COMPOSITIONS OF TOEHOLD PRIMER DUPLEXES AND METHODS OF USE - Provided herein are primers and primer systems having improved specificity and kinetics over existing primers, and methods of use thereof. | 06-04-2015 |
Ningyan Zhang, Houston, TX US
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20120195831 | GENERATION, CHARACTERIZATION AND USES THEREOF OF ANTI-HER3 ANTIBODIES - The present invention relates to Her3 specific antibodies, preferably fully human or humanized antibodies and antigen-binding portions thereof. Nucleic acid molecules encoding the Her3 antibodies as well as methods of use thereof are also disclosed. Also included are pharmaceutical compositions comprising these antibodies and methods of using the antibodies and compositions thereof for treatment and diagnosis of pathological hyperproliferative oncogenic disorders associated with aberrant expression of Her3 or Her2 including aberrant activation of each of these receptors. | 08-02-2012 |
20160032011 | HER3 SPECIFIC MONOCLONAL ANTIBODIES FOR DIAGNOSTIC AND THERAPEUTIC USE - Isolated or recombinant anti-HER3 monoclonal antibodies are provided. In some cases, antibodies of the embodiments can be used for the detection, diagnosis and/or therapeutic treatment of human diseases, such as cancer. | 02-04-2016 |
Qie Zhang, Houston, TX US
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20140293744 | SPECULAR FILTER (SF) AND DIP ORIENTED PARTIAL IMAGING (DOPI) SEISMIC MIGRATION - According to one embodiment, subsurface ray directions in beam migration or subsurface wave propagation directions in reverse time migrations are used to obtain additional Specular Filter (SF) and Dip Oriented Partial Imaging (DOPI) images. SF migration applies a specular imaging condition during migration with a pre-specified subsurface dip field. It boosts the S/N ratio in both images and gathers, by effectively removing migration noise. DOPI images are produced by decomposing a standard migration image according to subsurface dip inclination or/and dip azimuth groups, providing various views of the subsurface image. Both SF and DOPI migration images can supply valuable additional information compared to a standard migration image, and they can be efficiently generated during migration. | 10-02-2014 |
Su Zhang, Houston, TX US
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20160138063 | METHDS AND COMPOSITIONS FOR REPLICATION OF THREOSE NUCLEIC ACIDS - Methods and compositions for replication of threose nucleic acids (TNAs) are described. The described methods include a method for transcribing a DNA template into a TNA, and a method for reverse transcribing a threose nucleic acid into a cDNA. | 05-19-2016 |
Wenlin Zhang, Houston, TX US
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20150047990 | CO2 CONCENTRATION MEASUREMENT IN DRY GAS MIXTURES - Described herein is an apparatus and methods for characterizing a fluid composition including exposing electrolyte to one fluid mixture, collecting a signal from an electrode in contact with the electrolyte, and simultaneously exposing the electrolyte to a second fluid, collecting a signal from a second electrode in contact with the electrolyte exposed to the second fluid, and comparing the signal difference between the electrodes with the Nerst equation wherein the temperature of the electrolyte is above 488° C. Carbon dioxide, nitrogen, and/or oxygen may be present in the fluid and/or the second fluid. | 02-19-2015 |
20160087271 | Rechargeable Lithium Polymer Electrolyte Battery for Oilfield Use - A battery for oilfield applications which may include: a housing and an electrolytic cell disposed in the housing. The electrolytic cell may include: a cathode, an anode, and a polymeric separator disposed between the cathode and anode. The cathode may include a cathode composite material coated on a substrate. The cathode composite material may include: a polymeric continuous phase; an active material; a carbon source; and; a first lithium salt. The anode may comprise lithium. The polymeric separator may include: a first polymer crosslinked by a photoinitiator; and a second lithium salt. | 03-24-2016 |
Xichang Zhang, Houston, TX US
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20150041119 | SENSING MAGNETIZED PORTIONS OF A WELLHEAD SYSTEM TO MONITOR FATIGUE LOADING - A wellhead assembly having a tubular magnetized in at least one selected location, and a sensor proximate the magnetized location that monitors a magnetic field from the magnetized location. The magnetic field changes in response to changes in mechanical stress of the magnetized location, so that signals from the sensor represent loads applied to the tubular. Analyzing the signals over time provides fatigue loading data useful for estimating structural integrity of the tubular and its fatigue life. Example tubulars include a low pressure housing, a high pressure housing, conductor pipes respectively coupled with the housings, a string of tubing, a string of casing, housing and tubing connections, housing and tubing seals, tubing hangers, tubing risers, and other underwater structural components that require fatigue monitoring, or can be monitored for fatigue. | 02-12-2015 |
20150127308 | Stress Amplification Factor Analysis Methodology for Assessing Fatigue Performance of Threaded Connectors - A computer-implemented method is disclosed for characterizing a threaded coupling such as between two tubular members, e.g., casing segments employed in the field of oil and gas recovery. In one embodiment, a virtual model of the coupling is generated, and the virtual model is re-arranged to simulate plastic deformation of at least part of the coupling. The re-arranged model is analyzed to derive a stress/strain distribution of the coupling subject to subsequent loading, and an SAF (stress amplification factor) is determined from the analysis that reflects the effect of cyclic loading of the coupling. The method facilitates a thorough assessment of the performance of the coupling in fatigue. | 05-07-2015 |
Yanbin Zhang, Houston, TX US
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20150120255 | DETERMINING PERFORMANCE DATA FOR HYDROCARBON RESERVOIRS USING DIFFUSIVE TIME OF FLIGHT AS THE SPATIAL COORDINATE - The present disclosure provides a technique for determining performance data for hydrocarbon reservoirs using data storage, an output device and one or more processors. A heterogeneous multi-dimensional model of at least a portion of the hydrocarbon reservoir divided into cells is obtained. Each cell has a volume and one or more other attributes. A diffusive time of flight is calculated based upon the heterogeneous multi-dimensional model. The heterogeneous multi-dimensional model is transformed to an equivalent homogeneous one-dimensional model by defining the diffusive time of flight as a spatial variable. The performance data for the hydrocarbon reservoir is determined based on the equivalent homogeneous one-dimensional model, and the performance data is provided to the output device. | 04-30-2015 |
Yanyan Zhang, Houston, TX US
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20150299729 | ULTRAHIGH THROUGHPUT MICROINJECTION DEVICE - Many applications in cell biology, genetic engineering, cell-based therapeutics, and drug discovery require precise and safe methods for introducing membrane-impermeable molecules into cells. This can be implemented satisfactorily by microinjection. However, disadvantages of traditional manual microinjection include high degree of operator skill, low throughput and labor-intensiveness. Many studies have focused on developing automated and high-throughput systems for microinjection to address these limitations. However, none have provided sufficient throughput for applications such as ex vivo cell therapy, where manipulation of many cells is helpful. | 10-22-2015 |
Zhengdong Zhang, Houston, TX US
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20150324518 | Genetic Affinity of Microorganisms and Viruses - Selecting which sub-sequences in a database of nucleic acid such as 16S rRNA are highly characteristic of particular groupings of bacteria, microorganisms, fungi, etc. on a substantially phylogenetic tree. Also applicable to viruses comprising viral genomic RNA or DNA. A catalogue of highly characteristic sequences identified by this method is assembled to establish the genetic identity of an unknown organism. The characteristic sequences are used to design nucleic acid hybridization probes that include the characteristic sequence or its complement, or are derived from one or more characteristic sequences. A plurality of these characteristic sequences is used in hybridization to determine the phylogenetic tree position of the organism(s) in a sample. Those target organisms represented in the original sequence database and sufficient characteristic sequences can identify to the species or subspecies level. Oligonucleotide arrays of many probes are especially preferred. A hybridization signal can comprise fluorescence, chemiluminescence, or isotopic labeling, etc.; or sequences in a sample can be detected by direct means, e.g. mass spectrometry. The method's characteristic sequences can also be used to design specific PCR primers. The method uniquely identifies the phylogenetic affinity of an unknown organism without requiring prior knowledge of what is present in the sample. Even if the organism has not been previously encountered, the method still provides useful information about which phylogenetic tree bifurcation nodes encompass the organism. | 11-12-2015 |
Zijian Zhang, Houston, TX US
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20140129147 | Method of indicating the presence of gas hydrate and shallow gas in deepwater environment - A method for indicating the presence of free gas charged sands, and/or hydrates over free gas, and/or hydrates not over free gas, the method using well log data and a rock physics model. Velocity and density of background clays and sands are extracted from the well log data. The extracted velocities and densities are used to build a rock physics model. An AVO response is generated that is representative of free gas-charged sands. An AVO response is generated that is representative of hydrates over free gas-charged sands. An AVO response is generated that is representative of hydrates devoid of free gas. The generated AVO responses are used to construct an AVO crossplot diagram that is further used to distinguish deposits of free gas charged sands from hydrates over free gas, from hydrates not over free gas. | 05-08-2014 |
20140149042 | Method and System for identification of gas hydrates and free gas in geologic beds - A method and system for prospecting for gas hydrates and gas hydrates over free gas is disclosed. The method includes using well log data to form a rock physics model to generate synthetic seismic representing hydrate and hydrate-over-gas models. Spectral decomposition is applied to the synthetic seismic and to field seismic from the prospecting area, forming low frequency narrow band data sets. From mapped potential sands in the field data, compare positive amplitude dominated event in the narrow band field data to the narrow band synthetics for gas hydrates. Compare negative amplitude dominated event in the narrow band field data to the narrow band synthetics for gas or gas hydrate-over gas. From these comparisons, perform modeling to determine saturation and thickness for hydrates and hydrates-over-gas. | 05-29-2014 |