Patent application number | Description | Published |
20090139766 | Methods of Perforation Using Viscoelastic Surfactant Fluids and Associated Compositions - The invention provides a method for perforating a well with a perforating fluid comprising a viscoelastic surfactant that essentially stops fluid leak-off after perforation in an overbalanced condition. Another aspect of the invention provides the perforating fluid in itself. The well has a wellbore defined by a generally cylindrical casing in at least a portion of the wellbore (i.e., the wellbore is cased, although it is not necessary cased in its entire length). The wellbore passes through a subterranean formation that comprises hydrocarbon formation fluids (such as oil and/or gas), at least in certain strata. The method comprises placing a perforating device in a wellbore which includes at least one explosive perforating charge that can be detonated in order to perforate the casing and allow the formation fluids to enter the wellbore. The casing is located between the subterranean formation and the perforating device. A perforating fluid including at least one viscoelastic surfactant is placed in the wellbore between the perforating device and the casing, in at least a portion of the wellbore. In other words, the perforating fluid is present in the wellbore adjacent to the perforating device. The explosive charge(s) in the perforating device is detonated, such that the perforating device forms at least one perforation in the casing that permits the flow of hydrocarbon formation fluids from the subterranean formation into the wellbore. As a result of the detonation, at least a portion of the perforating fluid is put in communication with the subterranean formation. | 06-04-2009 |
20110111989 | COMPOSITIONS AND METHODS TO STABILIZE ACID-IN-OIL EMULSIONS - A method and apparatus for treating a subterranean formation traversed by a wellbore including forming an emulsion comprising oil, acid, and particulate, wherein the forming the emulsion is prepared on the fly, and introducing the emulsion into a wellbore. | 05-12-2011 |
20110284214 | METHODS AND TOOLS FOR MULTIPLE FRACTURE PLACEMENT ALONG A WELLBORE - The invention discloses a tool for use in a wellbore, comprising: a tubular elongated member; openings on the tubular member able to be close with a valve or a sleeve; swellable packers positioned between said opening on the tubular member; and a control unit; the control unit operating the valve or sleeve for fracturing a subterranean formation in a wellbore, in the stages: a. fracturing the subterranean formation through a first stage at predefined first locations; and b. fracturing the subterranean formation through a second stage at second location(s) wherein each location from the second location(s) is localized between the predefined first locations. | 11-24-2011 |
20130020088 | CHEMICALLY TARGETED CONTROL OF DOWNHOLE FLOW CONTROL DEVICES - Systems and methods using enhanced flow control devices are described. The flow control devices can be selectively closed completely or have its effective flow area reduced to restrict production (or injection) by use of a chemical trigger mechanism. In addition, some of the systems described herein deploy specific targeted chemical tracers, dissolvable in the unwanted production fluid (e.g. water or gas). These chemical tracers once dissolved will enter the production stream and be identified at the surface. The identification will determine which segment of the completion is producing the unwanted fluid. According to some embodiments, an appropriate chemical trigger is placed, for example, by pumping down through the tubing and utilizing intelligent completion valve to place the chemical, or by spotting with coiled tubing and bullhead to the formation, or by other methods of chemical placement. The chemical trigger will only trigger the active chemical in the appropriate flow control device. This chemical will then change state—dissolve, create thermal reaction, create a pressure swell or expand—which in turn allows a mechanical device to shift position such that a valve in the flow control device closes, or reduces its flow by restricting the flow area by swelling/expansion of the active chemical. | 01-24-2013 |
20130306320 | COMPOSITION AND METHOD FOR TREATING CARBONATE RESERVOIRS - The composition and method for treating carbonate reservoirs provides a treatment fluid for the acid treatment of stratified subterranean formations. The treatment fluid is injected into a non-problematic or high permeability zone of a carbonate reservoir. The treatment fluid is formed from a zwitterionic viscoelastic surfactant, which forms about 7.5 vol % of the treatment fluid, hydrochloric acid forming about 15.0 vol % of the treatment fluid, and a corrosion inhibitor forming about 0.6 vol % of the treatment fluid, the balance being brine. The treatment fluid gels as the hydrochloric acid reacts with carbonate of the carbonate reservoir, thus forming a diverting block in the non-problematic or high permeability zone. Following formation of the diverting block, a further volume of the treatment fluid is injected into the carbonate reservoir. The diverting block diverts the treatment fluid into a problematic or low permeability zone of the carbonate reservoir. | 11-21-2013 |
20140054039 | MATERIALS AND METHODS TO PREVENT FLUID LOSS IN SUBTERRANEAN FORMATIONS - Methods of preventing fluid loss in a downhole formation may include preparing an emulsion containing: an oleaginous phase; an aqueous phase; one or more fibers; injecting the emulsion into the wellbore; allowing the one or more fibers within the emulsion to seal a permeable interval of the formation. In another aspect, methods of stimulating hydrocarbon production in a wellbore may include: injecting a diverting treatment into a subterranean formation, the diverting treatment containing: a non-oleaginous fluid, an oleaginous fluid, and one or more fibers; injecting a stimulating treatment into the subterranean formation; and stimulating the production of hydrocarbons. | 02-27-2014 |
20140054040 | METHODS TO ENHANCE MATRIX ACIDIZING IN LOW PERMEABILTY RESERVOIRS - The subject disclosure relates to matrix acidizing. More specifically, the subject disclosure relates to manipulating downhole pressure to promote in-situ mixing. In particular, downhole pressure is temporarily reduced to allow churning of the dissolved CO | 02-27-2014 |
20140057356 | ESTIMATING DIFFUSION COEFFICIENT FOR A RESERVOIR STIMULATION FLUID - The subject disclosure relates to matrix acidizing. More specifically, systems and methods are described for estimating a diffusion coefficient for an acid fluid used to stimulate a subterranean reservoir wherein a spent acid is formulated that includes one or more by-products of the reaction between the fluid and rock. A rock sample, such as in the form of a rotating disk is exposed to spent acid under elevated pressure and temperature conditions while the fluid is sampled and analyzed. A diffusion coefficient for the spend acid is estimated. | 02-27-2014 |
Patent application number | Description | Published |
20100008838 | METHODS AND APPARATUS FOR ABATING ELECTRONIC DEVICE MANUFACTURING PROCESS EFFLUENT - A thermal abatement system is provided, including: a thermal abatement reactor; an inlet in fluid communication with the reactor; a process chamber in fluid communication with the inlet; a first sheathing fluid source in fluid communication with the inlet; a first flow control device, adapted to regulate a flow of a first sheathing fluid from the first sheathing fluid source; and a controller, in signal communication with the first flow control device, adapted to regulate the sheathing fluid by operating the first flow control device; wherein the inlet is adapted to receive an effluent stream from the process chamber and the first sheathing fluid from the first sheathing fluid source, to sheathe the effluent stream with the first sheathing fluid to form a sheathed effluent stream, and to introduce the sheathed effluent stream into the reactor. | 01-14-2010 |
20100192773 | ABATEMENT APPARATUS WITH SCRUBBER CONDUIT - Embodiments of an abatement apparatus are disclosed herein. In some embodiments, an abatement apparatus may include a scrubber configured to receive an effluent stream from a process chamber and further configured to remove first particles from the effluent stream; a scrubber conduit coupled to the scrubber to receive the effluent stream therefrom and configured to remove second particles from the effluent stream, the scrubber conduit having one or more inlets configured to provide a fluid to sufficiently wet an interior surface of the scrubber conduit to trap the second particles thereon and to wash the second particles therealong; and a central scrubber coupled to the scrubber via the scrubber conduit. In some embodiments, the scrubber conduit is downward sloping from the scrubber to the central scrubber. In some embodiments, a plurality of scrubbers may be coupled to the central scrubber via a plurality of scrubber conduits. | 08-05-2010 |
20100258510 | METHODS AND APPARATUS FOR TREATING EFFLUENT - Methods and apparatus for treating effluents in process systems are provided In some embodiments, a system for treating effluent includes a process chamber having a processing volume; an exhaust conduit coupled to the process chamber to remove an effluent from the processing volume; and a reactive species generator coupled to the exhaust conduit to inject a reactive species into the exhaust conduit to treat the effluent, wherein the reactive species generator generates a reactive species comprising at least one of singlet hydrogen, hydrogen ions or hydrogen radicals. In some embodiments, a method for treating effluent includes flowing an effluent from a processing volume of a process system through an exhaust conduit fluidly coupled to the processing volume; treating the effluent in the exhaust conduit with a reactive species comprising at least one of singlet hydrogen, hydrogen ions, or hydrogen radicals; and flowing the treated effluent to an abatement system. | 10-14-2010 |
20130101241 | SUBSTRATE SUPPORT BUSHING - A bushing assembly for supporting a substrate within a processing chamber is generally provided. In one aspect, the bushing assembly comprises a tubular body having an outer perimeter and an aperture extending therethrough, a first ring having a first inner edge, the first ring disposed in the aperture in an upper portion of the tubular body, and a second ring having a second inner edge, the second ring disposed in the aperture in a lower portion of the tubular body. In another aspect, the first inner edge has a first radius of curvature, and the second inner edge has a second radius of curvature. In another aspect, a first inner edge diameter, a second inner edge diameter, the first radius of curvature, and the second radius of curvature are selected such that a support pin extending through the aperture contacts the bushing assembly on at most two points. | 04-25-2013 |
20130284721 | METHOD AND APPARATUS FOR SUBSTRATE SUPPORT WITH MULTI-ZONE HEATING - Methods and substrate processing systems are provided for controlling substrate heating efficiency and generating a desired temperature profile on the surface of a substrate when the substrate is disposed on a substrate support surface of a substrate support assembly. The substrate support assembly is provided with minimum software control and hardware requirement and includes a heating element comprised of multiple heating elements sections. The heating element is connected to a power source for adjusting the temperature outputs of the multiple heating element sections and providing adjustable multi-heating zones and desired temperature distribution over the substrate support surface of the substrate support assembly within a process chamber. | 10-31-2013 |
20130287529 | METHOD AND APPARATUS FOR INDEPENDENT WAFER HANDLING - A substrate processing system with independent substrate placement capability to two or more substrate support assemblies is provided. Two different sets of fixed-length lift pins are disposed on two or more substrate support lift pin assemblies of two or more process chambers, where the length of each lift pin in one process chamber is different from the length of each lift pin in another process chamber. The substrate processing system includes simplified mechanical substrate support lift pin mechanisms and minimum accessory parts cooperating with a substrate transfer mechanism (e.g., a transfer robot) for efficient and independent loading, unloading, and transfer of one or more substrates between two or more processing regions in a twin chamber or between two or more process chambers. A method for positioning one or more substrates to be loaded, unloaded, or processed independently or simultaneously in two or more processing regions or process chambers is provided. | 10-31-2013 |
Patent application number | Description | Published |
20080290535 | REDUCTION OF EXCESS POLYMERIC FLASH RING - The present invention includes methods and apparatus for forming a biomedical device, such as an ophthalmic lens, in a area defined by a first mold part and a second mold part wherein during the formation of the biomedical device a HEMA is formed and the HEMA ring and a greater adhesive force is generated on the HEMA ring by the second mold part than the first mold part. | 11-27-2008 |
20090004288 | STABILIZED OPHTHALMIC SOLUTIONS - The present invention relates to stabilized ophthalmic solutions comprising at least one peroxide. In one embodiment, the present invention relates to an ophthalmic solution comprising a pH between about 6 and about 8 and about 50 to about 1000 ppm hydrogen peroxide and about 0.005 wt % (50 ppm) to about 0.05 wt % (500 ppm) at least one salt of diethylenetriamine pentaacetic acid selected from the group consisting of calcium salts of diethylenetriamine pentaacetic acid, zinc salts of diethylenetriamine pentaacetic acid and mixed calcium/zinc salts of diethylenetriamine pentaacetic acid. | 01-01-2009 |
20090218705 | METHODS AND SYSTEMS FOR PROCESSING SILICONE HYDROGEL OPHTHALMIC LENSES FOR IMPROVED LENS TRANSFER - This invention includes methods and systems for processing silicone hydrogel ophthalmic lenses using aqueous solutions which contain dimethyl siloxane as as processing aids to facilitate lens transfer. | 09-03-2009 |
20090239775 | OPHTHALMIC SOLUTIONS DISPLAYING IMPROVED EFFICACY - The present invention relates to ophthalmic compositions comprising a pH between about 6 and about 8 and about 50 to about 1000 ppm hydrogen peroxide, about 100 ppm to about 2000 ppm of at least one chlorite compound and about 20 to 100 ppm of at least one saturated, polymeric quaternium salt. The ophthalmic compositions of the present invention display improved antifungal efficacy against | 09-24-2009 |
20090244479 | TINTED SILICONE OPHTHALMIC DEVICES, PROCESSES AND POLYMERS USED IN THE PREPARATION OF SAME - Tinted ophthalmic devices, methods for their production, and non-crosslinked binding polymers used in their production are disclosed herein. | 10-01-2009 |
20100133710 | BIOMEDICAL DEVICES CONTAINING INTERNAL WETTING AGENTS - This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer. | 06-03-2010 |
20110049445 | PHOTOCHROMIC MATERIALS HAVING EXTENDED PI-CONJUGATED SYSTEMS AND COMPOSITIONS AND ARTICLES INCLUDING THE SAME - The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials. | 03-03-2011 |
20110248415 | PROCESS FOR MANUFACTURE OF A THERMOCHROMIC CONTACT LENS MATERIAL - Disclosed in this specification is a process for manufacturing a thermochromic contact lens. The process includes (1) selecting a photoinitiator that absorbs at a first wavelength and at least one thermochromic dye that displays substantial absorption at the first wavelength when the dye is at a first temperature and exhibits at least an 80% reduction in absorbance at the first wavelength at a second temperature, (2) maintaining the reaction mixture at the second temperature and (3) providing cure light that includes the first wavelength. | 10-13-2011 |
20120108551 | OPHTHALMIC COMPOSITIONS - The present invention relates to compositions that may alleviate symptoms of ocular stress, as well as methods of their production, use, and storage compositions. The compositions comprise at least one ocular epithelial cell associating group and at least one hydrophilic group. In one embodiment the at least one ocular epithelial cell associating group and at least one hydrophilic group are substituents on a conjugated polyaromatic core. | 05-03-2012 |
20120212703 | POLYMERIC COMPOSITIONS COMPRISING AT LEAST ONE VOLUME EXCLUDING POLYMER - The present invention relates to compositions comprising a polymeric substrate comprising at least one volume excluding polymer. In one embodiment, the present invention provides polymeric articles that are capable of acting as osmotic drivers. The articles are capable of maintaining a desired water balance by moving water in or out of a substrate to maintain cation concentration equilibrium between the substrate and its environment. | 08-23-2012 |
20130005805 | ESTERS FOR TREATMENT OF OCULAR INFLAMMATORY CONDITIONS - The present invention relates to ophthalmic compositions and methods for the treatment of dry eye and other inflammatory ocular conditions. In particular, the present invention relates to a composition comprising an esterified anti-inflammatory lipid mediator, which is an ester of an anti-inflammatory lipid mediator that is a reaction product of the anti-inflammatory lipid mediator and a monohydric alcohol or an amide wherein the majority of the anti-inflammatory lipid mediator is present in an ester form. In this way, the compositions are substantially free of an acid form of the anti-inflammatory lipid mediators. This composition can be topically delivered to the ocular surface via a preparation, solution, gel, ointment, and/or strip and/or a contact lens. | 01-03-2013 |
20130065056 | PHOTOCHROMIC MATERIALS HAVING EXTENDED PI-CONJUGATED SYSTEMS AND COMPOSITIONS AND ARTICLES INCLUDING THE SAME - The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials. | 03-14-2013 |
20130225715 | BIOMEDICAL DEVICES CONTAINING INTERNAL WETTING AGENTS - This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer. | 08-29-2013 |
20130237631 | BIOMEDICAL DEVICES CONTAINING INTERNAL WETTING AGENTS - This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer. | 09-12-2013 |
20130289135 | POLYMERIC COMPOSITIONS COMPRISING AT LEAST ONE VOLUME EXCLUDING POLYMER - The present invention relates to compositions comprising a polymeric substrate comprising at least one volume excluding polymer. In one embodiment, the present invention provides polymeric articles that are capable of acting as osmotic drivers. The articles are capable of maintaining a desired water balance by moving water in or out of a substrate to maintain cation concentration equilibrium between the substrate and its environment. | 10-31-2013 |
20150041736 | BIOMEDICAL DEVICES CONTAINING INTERNAL WETTING AGENTS - This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer. | 02-12-2015 |
Patent application number | Description | Published |
20080249813 | System and Method for Providing Consumer Rewards - An automated consumer rewards/incentive program that accepts a registration of a consumer. The registration entitles the consumer to receive the benefits of the incentive program. To track the fulfillment of reward earning criteria established by member businesses, the registration includes information indicative of a credit card of the consumer. The system uses the credit card information to determine when member customers perform a transaction at a member business. When a member customer performs a transaction at a member business using the registered credit card, the system and method examines the credit card transactional information to determine if the consumer fulfilled the requirements of the incentive program for the member business. If the transactional information indicates that the consumer fulfilled the criteria of the rewards program of the member business, the consumer is rewarded in accordance with the benefits of the incentive program. | 10-09-2008 |
20090063351 | System And Method For Providing Consumer Rewards - An automated consumer rewards/incentive program that accepts a registration of a consumer. The registration entitles the consumer to receive the benefits of the incentive program. To track the fulfillment of reward earning criteria established by member businesses, the registration includes information indicative of a credit card of the consumer. The system may track member consumer credit card transactions without receiving personal information for non-members by using a one way hash function. The system uses the credit card information to determine when member customers perform a transaction at a member business. When a member customer performs a transaction at a member business using the registered credit card, the system and method examines the credit card transactional information to determine if the consumer fulfilled the requirements of the incentive program for the member business. If the transactional information indicates that the consumer fulfilled the criteria of the rewards program of the member business, the consumer is rewarded in accordance with the benefits of the incentive program. | 03-05-2009 |
20110225033 | System And Method For Providing Consumer Rewards - An automated consumer rewards/incentive program that accepts a registration of a consumer. The registration entitles the consumer to receive the benefits of the incentive program. To track the fulfillment of reward earning criteria established by member businesses, the registration includes information indicative of a credit card of the consumer. The system may track member consumer credit card transactions without receiving personal information for non-members by using a one way hash function. The system uses the credit card information to determine when member customers perform a transaction at a member business. When a member customer performs a transaction at a member business using the registered credit card, the system and method examines the credit card transactional information to determine if the consumer fulfilled the requirements of the incentive program for the member business. If the transactional information indicates that the consumer fulfilled the criteria of the rewards program of the member business, the consumer is rewarded in accordance with the benefits of the incentive program. | 09-15-2011 |