| Patent application number | Description | Published |
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| 20100069574 | ETHYLENE/ALPHA-OLEFINS BLOCK INTERPOLYMERS - Embodiments of the invention provide a class of ethylene/α-olefin block interpolymers. The ethylene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 03-18-2010 |
| 20100197540 | VISCOSITY INDEX IMPROVER FOR LUBRICANT COMPOSITIONS - A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/α-olefin interpolymer. The ethylene/α-olefin interpolymer has at least a hard segment and at least a soft segment. The soft segment contains a higher amount of comonomers than the hard segment. The hard segment has low crystallinity. The copolymer has a number of unique characteristics disclosed herein. Such copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc. | 08-05-2010 |
| 20100197541 | VISCOSITY INDEX IMPROVER FOR LUBRICANT COMPOSITIONS - A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/α-olefin interpolymer. The ethylene/α-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block copolymer has a number of unique characteristics disclosed here. Such block copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc. | 08-05-2010 |
| 20100197864 | CATALYTIC OLEFIN BLOCK COPOLYMERS WITH CONTROLLED BLOCK SEQUENCE DISTRIBUTION AND AT LEAST ONE LOW CRYSTALLINITY HARD BLOCK - The invention is related to catalytic olefin block copolymers with a controlled block sequence distribution and at least one low crystallinity hard block. The block copolymer has a number of unique characteristics disclosed here. | 08-05-2010 |
| 20100197880 | ETHYLENE/a- OLEFIN INTERPOLYMERS CONTAINING LOW CRYSTALI.INITY HARD BLOCKS - The invention is related to an ethylene/α-olefin interpolymer having at least a hard segment and at least a soft segment. The soft segment contains a higher amount of comonomers than the hard segment. The hard segment has low crystallinity. The copolymer has a number of unique characteristics disclosed herein.ethylene/α-olefin interpolymers containing low crystallinity hard blocks | 08-05-2010 |
| 20110082249 | BLOCK COMPOSITES IN SOFT COMPOUNDS - Embodiments of the invention provide block composites and their use in soft compounds. | 04-07-2011 |
| 20110082257 | BLOCK COMPOSITES AND IMPACT MODIFIED COMPOSITIONS - Embodiments of the invention provide block composites and their use as impact modifiers. | 04-07-2011 |
| 20110118416 | Catalyst Composition Comprising Shuttling Agent for Ethylene Multi-Block Copolymer Formation - A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining:
| 05-19-2011 |
| 20110124818 | Catalyst Composition Comprising Shuttling Agent for Ethylene Multi-Block Copolymer Formation - A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining:
| 05-26-2011 |
| 20110239746 | APPARATUS FOR METHOD FOR POLYMER CHARACTERIZATION - Apparatus for GPC/TREF and TREF/GPC characterization of a polymer sample. The apparatus provides for the automated and integrated use of multiple TREF columns and a GPC system employing a multiple flow through detectors. In addition, a method for TREF/GPC characterization of a polymer sample by GPC analysis of TREF fractions at increasing TREF elution temperatures from multiple TREF columns operated in a coordinated and synchronized temperature cycle for increased sample throughput. Also, a method for GPC/TREF characterization of a polymer sample by GPC fractionation followed by TREF fractionation of the GPC fractionations. | 10-06-2011 |
| 20110313106 | CRYSTALLINE BLOCK COMPOSITES AS COMPATIBILIZERS - Embodiments of the invention provide crystalline block composites and their use as compatibilizers. | 12-22-2011 |
| 20110313107 | CRYSTALLINE BLOCK COMPOSITES AS COMPATIBILIZERS - Embodiments of the invention provide crystalline block composites and their use as compatibilizers. | 12-22-2011 |
| 20110313108 | CRYSTALLINE BLOCK COMPOSITES AS COMPATIBILIZERS - Embodiments of the invention provide crystalline block composites and their use as compatibilizers. | 12-22-2011 |
| 20120208946 | BLOCK COPOLYMERS IN SOFT COMPOUNDS - Embodiments of the invention provide block composites and their use in soft compounds. | 08-16-2012 |
| 20130030092 | Catalyst Composition Comprising Shuttling Agent for Ethylene Multi-Block Copolymer Formation - A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining:
| 01-31-2013 |
| 20140249286 | Catalyst Composition Comprising Shuttling Agent for Ethylene Multi-Block Copolymer Formation - A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining:
| 09-04-2014 |
| 20150210838 | ETHYLENE/ALPHA-OLEFIN/NONCONJUGATED POLYENE BASED COMPOSITIONS FOR THERMOPLASTIC VULCANIZATES - The invention provides a composition comprising at least the following components: A) an ethylene/α-olefin/nonconjugated polyene interpolymer that has the following properties: i) a rheology ratio (V0.1/V100 at 190° C.) greater than, or equal to, 35; ii) a weight average molecular weight (Mw) greater than, or equal to, 200,000 g/mol; and iii) a CCDB (Chemical Composition Distribution Breadth) less than 7; B) a thermoplastic polymer; C) a vulcanization agent; and wherein the interpolymer comprises incorporated oil. The invention also provides a composition comprising the following: A) a first composition comprising: a) a first ethylene/α-olefin/nonconjugated polyene interpolymer; b) a second ethylene/α-olefin/nonconjugated polyene interpolymer; and wherein the first composition has the following properties: i) an MWD less than, or equal to, 3.5, ii) a Mooney Viscosity (ML (1+4, 125° C.)) greater than, or equal to, 60, iii) a CCDB from 7 to 15; B) a thermoplastic polymer; C) a vulcanization agent; and wherein the first interpolymer and the second interpolymer comprise incorporated oil. | 07-30-2015 |
| 20150217544 | MULTILAYERED POLYOLEFIN-BASED FILMS - Disclosed are multilayer structures comprising a polyolefin layer, a tie layer and a barrier layer wherein the tie layer is a formulation comprising a crystalline block copolymer composite (CBC) comprising i) an ethylene polymer (EP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP) and iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB). | 08-06-2015 |
| 20150322185 | ETHYLENE/ALPHA-OLEFIN/NONCONJUGATED POLYENE INTERPOLYMERS AND PROCESSES TO FORM THE SAME - The invention provides a solution polymerization process to form an ethylene/α-olefin/nonconjugated polyene interpolymer, said process comprising polymerizing ethylene, an α-olefin, and a nonconjugated polyene in at least one reactor in the presence of a catalyst selected from Formula I, as described herein; and wherein the polymerization is conducted in a continuous process; and wherein the interpolymer has a rheology ratio (V0.1/V100 at 19° C.) greater than, or equal to, 20. | 11-12-2015 |
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| 20080213245 | ENZYME TREATMENT OF FOODSTUFFS FOR CELIAC SPRUE - Administering an effective dose of glutenase to a Celiac or dermatitis herpetiformis patient reduces levels of toxic gluten oligopeptides, thereby attenuating or eliminating the damaging effects of gluten. | 09-04-2008 |
| 20080213427 | ENZYME TREATMENT OF FOODSTUFFS FOR CELIAC SPRUE - Administering an effective dose of glutenase to a Celiac or dermatitis herpetiformis patient reduces levels of toxic gluten oligopeptides, thereby attenuating or eliminating the damaging effects of gluten. | 09-04-2008 |
| 20080213822 | METHODS FOR DIAGNOSING CELIAC SPRUE AND REAGENTS USEFUL THEREIN - Administering an effective dose of glutenase to a Celiac or dermatitis herpetiformis patient reduces levels of toxic gluten oligopeptides, thereby attenuating or eliminating the damaging effects of gluten. | 09-04-2008 |
| 20090280555 | ENZYME TREATMENT OF FOODSTUFFS FOR CELIAC SPRUE - Administering an effective dose of glutenase to a Celiac or dermatitis herpetiformis patient reduces levels of toxic gluten oligopeptides, thereby attenuating or eliminating the damaging effects of gluten. | 11-12-2009 |
| 20090312260 | DRUG THERAPY FOR CELIAC SPRUE - Administering an effective dose of a tTGase inhibitor to a Celiac or dermatitis herpetiformis patient reduces the toxic effects of toxic gluten oligopeptides, thereby attenuating or eliminating the damaging effects of gluten. | 12-17-2009 |
| 20100317025 | Diagnostic Method for Celiac Sprue - Detection of toxic gluten oligopeptides refractory to digestion and antibodies and T cells responsive thereto can be used to diagnose Celiac Sprue. | 12-16-2010 |
| 20110293724 | Enzyme Treatment of Foodstuffs for Celiac Sprue - Administering an effective dose of glutenase to a Celiac or dermatitis herpetiformis patient reduces levels of toxic gluten oligopeptides, thereby attenuating or eliminating the damaging effects of gluten. | 12-01-2011 |
| 20120083004 | Diagnostic Method for Celiac Sprue - Detection of toxic gluten oligopeptides refractory to digestion and antibodies and T cells responsive thereto can be used to diagnose Celiac Sprue. | 04-05-2012 |
| 20120156253 | Enzyme Treatment of Foodstuffs for Celiac Sprue - Administering an effective dose of glutenase to a Celiac or dermatitis herpetiformis patient reduces levels of toxic gluten oligopeptides, thereby attenuating or eliminating the damaging effects of gluten. | 06-21-2012 |
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| 20110198147 | SEISMIC TRANSDUCERS HAVING IMPROVED POLYGONAL BASEPLATES AND METHODS OF USE - Methods and systems are provided for inducing seismic energy waves in a subterranean formation. More specifically, seismic transducers are provided that incorporate enhanced seismic baseplates. In certain embodiments, baseplates comprise certain enhancements such as having a perimeter in the shape of a polygon, such as, a hexagon or an octagon. In other embodiments, the perimeter of the baseplate may take the form of a polygon having n sides, where n is any integer greater than 4. Advantages of such baseplate enhancements include, but are not limited to, a reduction of baseplate harmonics or ringing, enhanced baseplate strength so as to reduce baseplate fatigue or failure, a reduction of baseplate flexure, and a consequent reduction of baseplate weight resulting in a more responsive baseplate. These advantages ultimately translate to improved seismic surveys, having higher resolution of the formations surveyed and resulting in surveys reaching greater depths. | 08-18-2011 |
| 20110198148 | SEISMIC TRANSDUCERS AND BASEPLATES HAVING EXTERNAL DAMPENERS AND METHODS OF USE - Methods and systems are provided for inducing seismic vibrations into subterranean formations. Seismic transducers may comprise a frame, a reaction mass, a driver, and a baseplate. The driver actuates the reaction mass, imparting a vibratory energy to the baseplate. This vibratory energy is then imparted directly to the ground surface to propagate seismic waves into the formation. These seismic waves are then reflected by subsurface geological features. The reflected seismic waves may then be detected and interpreted by seismic detectors to reveal seismic information representative of the surveyed region. An external dampener may be secured to the baseplate, which provide, among other benefits, a damping effect to the baseplate. Advantages include, reduced undesirable baseplate harmonic distortion or “ringing,” reduced baseplate decoupling, and reduced seismic noise due to flexure reduction and more uniform baseplate-to-ground conformance. These advantages ultimately translate to improved seismic surveys, having higher formation resolution and reaching greater depths. | 08-18-2011 |
| 20110272206 | MATRIX GROUND FORCE MEASUREMENT OF SEISMIC TRANSDUCERS AND METHODS OF USE - Methods and systems are provided for inducing seismic vibrations into an elastic medium such as subterranean formations. The methods and systems utilize seismic transducers having a sensor matrix for measurement of baseplate force distributions. Certain embodiments include a sensor matrix that is configured to measure a distribution of discrete force measurements across the surface area of the baseplate. Advantages of including such sensor matrices include a more accurate prediction of seismic transducer energy output. That is, these measurements can be used as feedback to adjust the operation of the seismic transducer. Additionally, these force measurements may be used to provide for a better interpretation of gathered seismic data. These advantages ultimately translate to improved seismic surveys, having higher resolution of the formations surveyed and reaching greater depths. | 11-10-2011 |
| 20120002503 | Seismic Acquisition in Marine Environments Using Survey Paths Following a Series of Linked Deviated Paths and Methods of Use - Methods and systems are provided for acquiring seismic data in a marine environment using survey paths following a series of linked curved paths so as to obtain multi-azimuthal data over a sub-surface target. Marine vessels towing multiple seismic streamers may be configured to travel substantially along a series of linked deviated paths or a series of linked curved paths. Sources may be excited to introduce acoustic wave energy in the marine environment and into the subsea region. The acoustic wave energy then reflects and refracts from the subsea region to form reflected and refracted wave energy, which is detected by seismic receivers spaced along the streamers. The detected seismic data is then interpreted to reveal seismic information representative of the surveyed subsea region. Other enhancements include configuring the streamers in a flared configuration, where the lateral spacing increases rearwardly over the length of the seismic streamers. | 01-05-2012 |
| 20120037443 | SEISMIC TRANSDUCERS HAVING REDUCED SURFACE AREA BASEPLATES AND METHODS OF USE - Methods and systems are provided for inducing seismic energy waves in a subterranean formation. More particularly, improved seismic transducers are provided that comprise enhanced baseplates. Baseplates are provided that comprise an intermediate plate and a plurality of contact plates secured to the underside of the intermediate plate. The contact plates provide a surface area for engagement with the ground surface that is more limited than the lower surface area of the intermediate plate. Advantages of such baseplate enhancements include, but are not limited to, a reduction of baseplate harmonics or ringing and enhanced baseplate strength so as to reduce baseplate fatigue or failure, a reduction of baseplate flexure. These advantages ultimately translate to improved seismic surveys, having higher resolution of the formations surveyed and resulting in surveys reaching greater depths. | 02-16-2012 |
| 20120037444 | CONSTANT HOLDDOWN WEIGHT FOR VIBRATORY SEISMIC SOURCES - The invention relates to maintaining constant holddown force on the vibrator baseplate during actuation. The invention described measures the weight on the point of locomotion verses the baseplate and dynamically adjusts the forces required to keep the holddown force on the baseplate constant. | 02-16-2012 |
| 20120037445 | METHOD FOR CREATING AN IMPROVED SWEEP FOR A SEISMIC SOURCE - An adapted seismic vibrator for obtaining a true ground force comprising: a baseplate pad; a baseplate drive system, wherein the drive system is connected to the baseplate pad and moves the baseplate pad up and down; a vibrator controller electronics, wherein the electronics are connected to the drive system and causes the drive system to move the baseplate pad up and down; and a plurality of load cell sensors disposed between the baseplate pad and ground, wherein the sensors measure the vibrator output force during a sweep. A method of obtaining a true ground force sweep comprising the steps of: using the load cell sensors to measure an actual output force of a seismic vibrator and electronics to obtain an actual ground force data; using inversion to invert the actual ground force data and desired original pilot sweep to obtain a revised pilot sweep that produces a true ground force sweep; and entering the true ground force sweep into the electronics. | 02-16-2012 |
| 20120037446 | UNIFORM DISPLACEMENT SWEEP - This invention relates to operating a seismic vibrator to produce a uniform displacement sweep wherein the baseplate drive is connected to the baseplate and the baseplate is moved in an up and down or reciprocating pattern creating displacement of the earth. The reciprocating pattern and physical displacement of the baseplate and the ground in contact with the baseplate is maintained at a relatively constant distance over at least most of the frequencies that are delivered into the earth although a constant displacement of the baseplate at higher frequencies will require greater power. The high frequency energy is more significantly present in the data traces of the recorded return wavefield and shows that Q attenuation is not fully to blame for the relative absence of high frequency data but rather in failing to effectively deliver high frequency energy into the earth in the first place. | 02-16-2012 |
| 20130283923 | DETERMINATION OF NEAR SURFACE GEOPHYSCIAL PROPERTIES BY IMPULSIVE DISPLACEMENT EVENTS - The invention is an improved technique for measuring near surface attributes of the ground while conducting a seismic survey. The improved technique is enabled by an electric vibe using a number of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion. By applying constant force on the rods of the linear electric motors against the ground, the penetration into the ground may be measured for both rate and overall deformation. This information provides an accurate indication of viscosity and stiffness. In addition shear velocity and compression velocity may be measured and in some conditions, even the type of prominent shear wave may be identified for the area. | 10-31-2013 |
| 20130284534 | WHEEL LIFTING APPARATUS - The invention is an electric powered mechanism for lifting and lowering at the wheels for an electric sweep type seismic vibrator source of the type used in seismic prospecting for hydrocarbons. The source uses an engine and generator combination to create electric power for all systems on the source such as driving a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion along with driving the source from location to location through a survey area. Preferably a foot is arranged on the bottom end of the rod or piston for contact with the ground and by engaging the grid of motors to push down against the ground in a rapid progression, acoustic energy is created and delivered into the ground for geophones to sense and record. The electric powered wheel mechanism may be utilized to bring the foot of the rod or piston in contact with the ground or in closer proximity to the ground or level the source prior to emitting the seismic energy or to adjust weight on the acoustic energy delivery system while seismic energy is being delivered. | 10-31-2013 |
| 20130286779 | QUASI-IMPULSIVE DISPLACEMENT SOURCE - The invention is an electric seismic vibrator source of the type used in seismic prospecting for hydrocarbons that creates a quasi-impulsive burst of seismic energy onto the ground and into the earth. The source uses an engine and generator combination to create electric power for all systems on the source such as driving a frame of linear electric motors that direct a rod or piston to contact the ground. All of the linear electric motors are driven against the ground in a high power pulse that delivers a band-limited spectrum of seismic energy over a very brief period of time that would like a “pop” and be measured in milliseconds. A quasi-impulsive seismic pulse would create a wave field that resembles the seismic data acquired using dynamite or other explosive seismic systems without the ultrahigh frequencies of a true explosive pulse. The quick burst or several quick bursts may further speed up the survey by minimizing the time that a vibe spends on a source point. | 10-31-2013 |
| 20130286780 | DISTINCTIVE LAND SEISMIC SWEEP - The invention is an electric sweep type seismic vibrator source of the type used in seismic prospecting for hydrocarbons. The source uses an engine and generator combination to create electric power for all systems on the source such as driving a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion along with driving the source from location to location through a survey area. Preferably a foot is arranged on the bottom end of the rod or piston for contact with the ground and by engaging the grid of motors to push down against the ground in a rapid progression, acoustic energy is created and delivered into the ground for geophones to sense and record. However, the rapid progression of pulses or sweep of seismic energy is delivered in a distinctive fashion as compared to a conventional upsweep or downsweep and the distinctiveness is also achieved by creating a designed cadence or timing such that each pulse in a series of pulses is not delivered in a regular timing. Several similar seismic sources may be employed where each is provided with its own distinctive series of pulses such that each may be identified within the data record and source separation from a number of seismic sources may be accomplished. | 10-31-2013 |
| 20130286788 | ELECTRICAL ENERGY ACCUMULATOR - The invention is an electric power accumulator used with an electric sweep type seismic vibrator source of the type used in seismic prospecting for hydrocarbons. The source uses an engine and generator combination to create electric power to drive a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion. The source may also be designed to use electric power to drive the source from location to location through a survey area. A large electric power accumulator is provided to store electric power when the generator is able to produce excess power and the accumulator may deliver power along with the generator to drive the rods and deliver acoustic energy. With a large electric power accumulator, such as a battery or capacitor, the engine and generator combination may be engineered to be somewhat smaller, less costly and more efficient than a system where the engine and generator were sized to provide the electric power at times of maximum electric draw. | 10-31-2013 |
| 20130286789 | ACTIVE ISOLATION APPARATUS - The invention is an electric sweep type seismic vibrator source of the type used in seismic prospecting for hydrocarbons. The source uses an engine and generator combination to create electric power for all systems on the source such as driving a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion along with driving the source from location to location through a survey area. The seismic source further includes an active isolation system that provides for significant weight on the ground through the rods of the linear electric motors, but protects the vehicle body and the remainder of the systems on the seismic source to be insulated from the harshest vibration related to the acoustic energy being applied to the ground. The active isolation system may include reactive elements such as pneumatic and hydraulic shock absorbers, but also includes active elements such as linear motors operated to counteract the impulsive forces from conveying through the frame of the seismic source. | 10-31-2013 |
| 20130286790 | SIMULTANEOUS COMPOSITE LAND SEISMIC SWEEP - The invention is an electric sweep type seismic vibrator source of the type used in seismic prospecting for hydrocarbons. The source uses an engine and generator combination to create electric power for all systems on the source such as driving a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion along with driving the source from location to location through a survey area. Preferably a foot is arranged on the bottom end of the rod or piston for contact with the ground and by engaging the grid of motors to push down against the ground to create impulses that deliver acoustic seismic energy into the earth for geophones to sense and record. However, the pulses of seismic energy are delivered in a distinctive fashion where different linear motors are deliberately and concurrently providing different signals that create a distinctive composite signature or signal that can be identified in the data record for source separation purpose. | 10-31-2013 |
| 20130286791 | DISCRETE ELECTRIC SEISMIC SOURCE UNIT - The invention is an electric sweep type seismic vibrator source of the type used in seismic prospecting for hydrocarbons. The source uses an engine and generator combination to create electric power for all systems on the source such as driving a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion along with driving the source from location to location through a survey area. The seismic source includes systems for driving the acoustic energy systems using electric energy concurrently from both the generator and an electric energy accumulator such as a capacitor or battery, systems for adjusting the weight on the acoustic energy delivery system by raising and lowering wheels individually and an active energy isolation to isolate the chocks and impulses of the acoustic energy delivery system from the remainder of the seismic source. | 10-31-2013 |
| 20130308422 | CONSTANT ENERGY DISPLACEMENTS - An electric sweep type seismic vibrator source of the type used in seismic prospecting for hydrocarbons is provided. In one example, the source uses an engine and generator combination to create electric power for all systems on the source such as driving a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion along with driving the source from location to location through a survey area. A foot is arranged on the bottom end of the rod or piston for contact with the ground and by engaging the grid of motors to push down against the ground in a rapid progression, acoustic energy is created and delivered into the ground for geophones to sense and record. | 11-21-2013 |
| 20130343152 | METHOD FOR DETERMINING AN EQUIPMENT CONSTRAINED ACQUISITION DESIGN - A method for determining an equipment constrained acquisition design. | 12-26-2013 |
| 20140269175 | Seismic Acquisition in Marine Environments Using Survey Paths Following a Series of Linked Deviated Paths and Methods of Use - Methods and systems are provided for acquiring seismic data in a marine environment using survey paths following a series of linked curved paths so as to obtain multi-azimuthal data over a sub-surface target. Marine vessels towing multiple seismic streamers may be configured to travel substantially along a series of linked deviated paths or a series of linked curved paths. Sources may be excited to introduce acoustic wave energy in the marine environment and into the subsea region. The acoustic wave energy then reflects and refracts from the subsea region to form reflected and refracted wave energy, which is detected by seismic receivers spaced along the streamers. The detected seismic data is then interpreted to reveal seismic information representative of the surveyed subsea region. Other enhancements include configuring the streamers in a flared configuration, where the lateral spacing increases rearwardly over the length of the seismic streamers. | 09-18-2014 |
| 20150316672 | DETERMINISTIC PHASE CORRECTION AND APPLICATION - A method of more accurate phase encoding of phase offset vibrators used in simultaneous-multiple-sourcing 3D seismic mapping. The method measures the actual input energy and the proxy energy thereby determining a bulk error and a frequency-dependent error, both to be applied to correct the proxy energy. The corrected proxy energy is then used to perform actual seismic survey, and the inversion is then performed using the corrected proxy energy to source separate each vibe where the error is minimized. | 11-05-2015 |
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| 20100210858 | OXIDATION CATALYST FOR MALEIC ANHYDRIDE PRODUCTION - A process for preparing a catalyst by selecting an active catalyst and contacting the active catalyst with one or more fluids containing an organic solvent or mixture of organic solvents. In one embodiment, each organic solvent has a dielectric constant within a range of about 5 to about 55 when measured at a temperature of 20° C. to 25° C. The catalyst thus prepared may be used in a process for preparing maleic anhydride. | 08-19-2010 |
| 20110201830 | HIGH PORE VOLUME VPO CATALYST FOR MALEIC ANHYDRIDE PRODUCTION - Embodiments of the present invention disclose improved micro-pore catalyst structures containing catalytic material comprised of mixed oxides of vanadium and phosphorus and using such improved micro-pore catalyst structures for the production of maleic anhydride. | 08-18-2011 |
| 20130165671 | OXIDATION CATALYST FOR MALEIC ANHYDRIDE PRODUCTION - A process for preparing a catalyst by selecting an active catalyst and contacting the active catalyst with one or more fluids containing an organic solvent or mixture of organic solvents. In one embodiment, each organic solvent has a dielectric constant within a range of about 5 to about 55 when measured at a temperature of 20° C. to 25° C. The catalyst thus prepared may be used in a process for preparing maleic anhydride. | 06-27-2013 |
| 20130217897 | VPO CATALYST WITH LOW VANADIUM OXIDATION STATE FOR MALEIC ANDHYDRIDE PRODUCTION (D#81,745) - An oxidation catalyst comprising vanadium, phosphorus, and oxygen having average vanadium valence less than about 4.10, and a method of preparing such catalyst, is provided. The catalyst has side crush strength of at least about 5 lbs. and improved yield of maleic anhydride from n-butane between about 1% and about 6% absolute. The catalyst is formed by exposing a conventional active VPO catalyst having average vanadium valence between about 4.10 and about 4.40 to an organic solvent having a dielectric constant between about 5 and about 55 under conditions that facilitate an oxidation-reduction reaction, reducing the valence of the vanadium below 4.10. | 08-22-2013 |
| 20140194631 | High Pore Volume VPO Catalyst for Maleic Anhydride Production - Embodiments of the present invention disclose improved micro-pore catalyst structures containing catalytic material comprised of mixed oxides of vanadium and phosphorus and using such improved micro-pore catalyst structures for the production of maleic anhydride. | 07-10-2014 |
