| Patent Number |
Title Of Patent |
Date Issued |
| RE32995 |
Variable cylinder hydraulic vibrator and control system |
July 25, 1989 |
| Apparatus for incremental cylinder length control in hydraulic seismic vibrators having increased frequency range. The vibrator apparatus (10) of the type having a reaction mass (38) and axial cylinder bore (42) utilizes hydraulically movable end sleeves (86 and 96) in each end of the cy |
| RE31016 |
Anti-friction sucker rod guide assembly |
August 24, 1982 |
| An anti-friction sucker rod coupling and guide apparatus comprises:(a) a rod member having an anti-friction surface along its cylindrical length;(b) fasteners affixed at each end of the rod member for attaching the rod member within a sucker rod string;(c) a rod guide having an inner anti-fr |
| D325162 |
Clamp for safety harness |
April 7, 1992 |
|
| D299314 |
Bottle or similar article |
January 10, 1989 |
|
| D295955 |
Bottle |
May 31, 1988 |
|
| D295499 |
Bottle |
May 3, 1988 |
|
| 6751558 |
Method and process for prediction of subsurface fluid and rock pressures in the earth |
June 15, 2004 |
| A method of determination of fluid pressures in a subsurface region of the earth uses seismic velocities and calibrations relating the seismic velocities to the effective stress on the subsurface sediments. The seismic velocities may be keyed to defined seismic horizons and may be ob |
| 6694261 |
Method for identification of shallow water flow hazards using marine seismic data |
February 17, 2004 |
| The problem of detecting sedimentary formations having an abnormally high fluid pressure that are underneath a relatively impermeable formation having normal fluid pressures is addressed. At shallow depths, a formation with abnormally high fluid pressure has a shear velocity that is clos |
| 6675097 |
Nonlinear constrained inversion method to determine base of salt interface from gravity and grav |
January 6, 2004 |
| The present invention is a method for determining a parameter of interest of a region of interest of the earth using tensor data. At least one component of potential fields data is measured at a plurality of locations over a region of interest including a subterranean formation of intere |
| 6613808 |
Fischer-Tropsch processes and catalysts using polyacrylate matrix structures |
September 2, 2003 |
| A Fischer-Tropsch catalyst comprising a catalytically active first metal selected from the group consisting of at least one metal selected from the group consisting of iron, nickel, cobalt, chromium, and mixtures thereof, at least one second metal selected from the group consisting of si |
| 6597994 |
Seismic processing system and method to determine the edges of seismic data events |
July 22, 2003 |
| A seismic processing system and method calculates a coherency estimate for a volume of seismic data to detect edges of seismic events. The method includes selecting a portion of the seismic data volume for analysis, selecting a spatial and temporal position in the subset seismic data |
| 6571177 |
Color displays of multiple slices of 3-D seismic data |
May 27, 2003 |
| Three substantially parallel surfaces are selected in a 3-D data volume and values of a seismic attribute on each of the three surfaces are encoded onto a Red-Green-Blue (RGB) color scale. A single display of this encoded data makes it possible to get a visualization of and interpret sub |
| 6556922 |
Non-stationary filter design and application for seismic signals |
April 29, 2003 |
| A method of designing and applying filters for geophysical time series data comprising obtaining a plurality of spatially related geophysical time series and transforming the time series using a wavelet transformation. The wavelet transformation coefficients may be organized into a plura |
| 6537349 |
Passive low pressure flash gas compression system |
March 25, 2003 |
| A subsea passive flash gas compression system that includes a first separator that removes high pressure flash gas from a hydrocarbon product, a second separator that removes low pressure flash gas from the hydrocarbon product after the high pressure flash gas has been removed, and a |
| 6502037 |
Method for gravity and magnetic data inversion using vector and tensor data with seismic imaging |
December 31, 2002 |
| A method for modeling geological structures includes obtaining seismic data and using these data to derive an initial density model. Potential fields data is used to update the initial geophysical model by an inversion process using vector or tensor components of gravity and/or magnetic |
| 6499540 |
Method for detecting a leak in a drill string valve |
December 31, 2002 |
| A method for detecting a leak in a drill string valve used when drilling a subsea well. The method comprises measuring a first inlet pressure at a subsea mudlift pump while a subsea mudlift pump and a surface pump are operating and before a well is fully shut-in and measuring a second in |
| 6489371 |
Fischer-Tropsch processes and catalysts with promoters |
December 3, 2002 |
| A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In |
| 6488907 |
Catalytic partial oxidation processes and catalysts with diffusion barrier coating |
December 3, 2002 |
| A process for the production of synthesis gas from light hydrocarbons such as methane includes the net catalytic partial oxidation of a hydrocarbon feedstock by contacting a feed stream comprising the hydrocarbon feedstock and an O.sub.2 -containing gas with a catalyst in a reaction zone |
| 6488755 |
Asphalt compositions containing coated carbon fiber, methods for their manufacture and use |
December 3, 2002 |
| Asphalt compositions as well as asphalt paving compositions are improved by the inclusion of coated mesophase pitch carbon fibers having wax or waxy coatings to such compositions. Uses of such asphalt compositions, particularly with aggregates to form asphalt paving compositions are also |
| 6486220 |
Regeneration procedure for Fischer-Tropsch catalyst |
November 26, 2002 |
| A process is disclosed for regenerating catalyst used in a process for synthesizing hydrocarbons. The synthesis process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to |
| 6476085 |
Fischer-Tropsch processes using catalysts on mesoporous supports |
November 5, 2002 |
| This invention provides a process for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydr |
| 6474422 |
Method for controlling a well in a subsea mudlift drilling system |
November 5, 2002 |
| A method for controlling a subsea well that includes shutting at least one blowout preventer, opening at least one isolation line, and circulating an influx out of a well while an inlet pressure of a subsea mudlift pump is adjusted to maintain a substantially constant drill pipe pressure |
| 6473696 |
Method and process for prediction of subsurface fluid and rock pressures in the earth |
October 29, 2002 |
| A method of determination of fluid pressures in a subsurface region of the earth uses seismic velocities and calibrations relating the seismic velocities to the effective stress on the subsurface sediments. The seismic velocities may be keyed to defined seismic horizons and may be ob |
| 6461539 |
Metal carbide catalysts and process for producing synthesis gas |
October 8, 2002 |
| Mixed metal carbide catalysts that are active for catalyzing the net partial oxidation of methane to CO and H.sub.2 are disclosed, along with their method of making. The preferred catalysts of the invention comprise a mixture of at least two carbided metals that are prepared by the r |
| 6454002 |
Method and apparatus for increasing production from a well system using multi-phase technology i |
September 24, 2002 |
| An apparatus and method are provided to improve production from a gas-lift well comprising injecting gas into a well to lift multi-phase formation fluid from the well; measuring at least one characteristic of the multi-phase formation fluid with a multi-phase flow meter while the fluid |
| 6430507 |
Method for integrating gravity and magnetic inversion with geopressure prediction for oil, gas a |
August 6, 2002 |
| A method for determining formation pore pressure uses seismic data to derive an initial density model. Potential fields data are then used to derive the lower boundary of anomalous density zones (e.g., salt, shale diapirs, igneous or magmatic formations) by an inversion process. The |
| 6427774 |
Process and apparatus for coupled electromagnetic and acoustic stimulation of crude oil reservoi |
August 6, 2002 |
| Pulsed power sources are installed in one or more wells in the reservoir interval. The pulse sources include (1) an electrohydraulic generator that produces an intense and short lived electromagnetic pulse that travels at the speed of light through the reservoir, and an acoustic pulse fr |
| 6424918 |
Method for integrating gravity and magnetic inversion data with model based seismic data for oil |
July 23, 2002 |
| A method for modeling geological structures beneath anomalous density zones includes receiving seismic data and using this data to derive the top of a geologic model. Non-seismic data, such as gravity or magnetic data are used to derive the lower boundary of the geologic model in an inve |
| 6409940 |
Nickel-rhodium based catalysts and process for preparing synthesis gas |
June 25, 2002 |
| A process of preparing a product gas mixture comprising CO and H.sub.2 from a light hydrocarbon and O.sub.2 mixture is disclosed. The process includes contacting a reactant gas mixture comprising a C.sub.1 -C.sub.5 hydrocarbon and a source of molecular oxygen with a catalytically eff |
| 6403051 |
Recovery of sulfur from H2S and concurrent production of H2 using short contact time CPOX |
June 11, 2002 |
| A method, apparatus and system for treating a stream containing H.sub.2 S are disclosed. A preferred method comprises mixing the stream containing H.sub.2 S with a light hydrocarbon stream and an oxygen containing stream to form a feed stream; contacting the feed stream with a catalyst w |
| 6402989 |
Catalytic partial oxidation process and promoted nickel based catalysts supported on magnesium o |
June 11, 2002 |
| A process and catalyst are disclosed for the catalytic partial oxidation of light hydrocarbons to produce synthesis gas. The process involves contacting a feed stream comprising the hydrocarbon feedstock and an oxygen-containing gas with a catalyst in a reaction zone maintained at co |
| 6399676 |
Drag-reducing polymer suspensions |
June 4, 2002 |
| A hydrocarbon-soluble drag-reducing suspension is described, along with a process for manufacturing the drag-reducing suspension. The drag-reducing suspension is easily transportable, non-hazardous, easily handled, and provides a significant increase in drag-reducing capability over exis |
| 6370491 |
Method of modeling of faulting and fracturing in the earth |
April 9, 2002 |
| A computer implemented method for modeling of faulting and fracturing uses "small scale rules" to produce large-scale results. One part of the method is a user interface for inputting deformations, preexisting faults and fractures, and material rock properties. The second part of the sof |
| 6368997 |
Fischer-Tropsch processes and catalysts using fluorided supports |
April 9, 2002 |
| A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In |
| 6365544 |
Fischer-Tropsch processes and catalysts using fluorided alumina supports |
April 2, 2002 |
| A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In |
| 6353035 |
Fischer-tropsch processes using xerogel and aerogel catalysts by destabilizing aqueous colloids |
March 5, 2002 |
| A process is disclosed for producing hydrocarbons by contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. The process is chara |
| 6333294 |
Fischer-tropsch processes and catalysts with promoters |
December 25, 2001 |
| A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In |
| 6330343 |
Method for measuring coke quality by digital quantification of high intensity reflectivity |
December 11, 2001 |
| The invention includes an improved test for quantifying lustre of petroleum products in particle form, especially coke, as an index of quality. The test involves obtaining and preparing a sample and then placing it beneath an illuminating device in a manner that promotes the formation of |
| 6319872 |
Fischer-Tropsch processes using catalysts on mesoporous supports |
November 20, 2001 |
| This invention provides a process for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydr |
| 6278948 |
Method for gravity and magnetic data inversion using vector and tensor data |
August 21, 2001 |
| A method for modeling geological zones having anomalous density includes determining the top of the anomalous zone from non-potential fields data. Potential fields data is then used to derive the lower boundary of the geologic anomalous zone. A lower boundary to a anomalous zone is f |
| 6270652 |
Organometallic containing mesophase pitches for spinning into pitch carbon fibers |
August 7, 2001 |
| An improved process is disclosed for producing a unique metals-containing anisotropic pitch suitable for carbon fiber manufacture. Soluble, aromatic-organometallic compounds are added to a carbonaceous feedstock which is substantially free of mesophase pitch and the resulting composi |
| 6235677 |
Fischer-Tropsch processes using xerogel and aerogel catalysts by destabilizing aqueous colloids |
May 22, 2001 |
| A process is disclosed for producing hydrocarbons by contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. The process is chara |
| 6227293 |
Process and apparatus for coupled electromagnetic and acoustic stimulation of crude oil reservoi |
May 8, 2001 |
| Pulsed power sources are installed in one or more wells in the reservoir interval. The pulse sources include (1) an electrohydraulic generator that produces an intense and short lived electromagnetic pulse that travels at the speed of light through the reservoir, and an acoustic pulse fr |
| 6187147 |
Delayed coker unit furnace |
February 13, 2001 |
| The return bend elbow fittings connecting adjacent tubes in a delayed coker furnace are improved by subjecting the interior surface of the fittings to a diffusion hardfacing process. |
| 6172151 |
Nonaqueous drag reducing suspensions |
January 9, 2001 |
| This invention relates to improving the flow of flowing streams of hydrocarbons, such as petroleum or finished products, in a conduit such as a pipeline. The present invention also relates to a stable, nonagglomerating nonaqueous suspension suitable for improving flow of hydrocarbons |
| 6123829 |
High temperature, low oxidation stabilization of pitch fibers |
September 26, 2000 |
| The present invention provides a process for thermosetting pitch fibers in reduced times, at low concentrations of oxygen and at higher temperatures than previously possible. Additionally, the present invention provides a pitch fiber which has an oxygen diffusion rate to the center of th |
| 6009947 |
Casing conveyed perforator |
January 4, 2000 |
| A wellbore completion system utilizes casing conveyed devices to establish a fluid communication path between a downhole formation and the casing string. Extendible pistons are mounted in the wall of the casing pipe string and are extended toward contact with the downhole formation after |
| 6008645 |
Prediction of permeability from capillary pressure curves derived from nuclear magnetic resonanc |
December 28, 1999 |
| Capillary pressure curves can be derived from nuclear magnetic resonance (NMR) pore size distributions. These derived capillary pressure curves can be used to derive the displacement pressure, the fractional bulk volume of mercury at infinite pressure and a geometrical factor. These fact |
| 5992095 |
Security enclosure for convenience stores and the like |
November 30, 1999 |
| Curved transparent panels, suspended from a pair of parallel, curved tracks, are deployed in overlapping relationship to one another on top of a curved counter from a storage enclosure in which the panels are in stacked relationship to one another. |
| 5975752 |
Fabricated steel lifter for rotary kiln |
November 2, 1999 |
| A fabricated steel lifter for enhancing mixing of particulate material in a rotary calcining kiln. The lifter is fabricated from a weldable heat resistant alloy and includes a base plate, an anchor post, a sole plate, a face plate attached to the sole plate and extending back over the an |
