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7594971 |
Method of cleaning and sterilizing medical instruments
A novel method of cleaning and disinfecting organically contaminated articles such as, for instance, medical instruments, wherein the cleaning cycle consists of two sections divided by removal and...
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7588943 |
Method for quantitative monitoring of a gas injected in a reservoir in particular in a natural environment
A method for quantitative monitoring of a gas injected into a reservoir and likely to react chemically with the injection medium includes injecting into a reservoir a mixture of the potentially...
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7445934 |
System and method for estimating filtrate contamination in formation fluid samples using refractive index
A method and apparatus is described for estimating terminal purity or terminal contamination for a fluid during the withdrawal of the fluid from a subsurface formation. The apparatus and method...
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7427504 |
Determining fluid chemistry of formation fluid by downhole reagent injection spectral analysis
A method for analyzing formation fluid in earth formation surrounding a borehole includes storing analytical reagent in a reagent container in a fluids analyzer in a formation tester and moving the...
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7393689 |
Method and apparatus for characterizing coal tar in soil
The present invention provides a method and apparatus or system for determining an amount of coal tar that can enter, and subsequently be displaced from, a given type of soil for a range of depths...
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7223602 |
Continuous tracer generation method
The invention provides a method of online and on-site tracer generation for tagging natural gas stored in underground storage fields wherein feedstock is drawn from a feedstock source. The...
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7221448 |
Test cell for a noble gas polarizer
The invention relates to a sample cell with a glass body comprising a gas inlet and a gas outlet and at least one orifice, a plane glass window is fused into the orifice, the shape and size of the...
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7098034 |
Systems and methods for assessing the presence of and/or the level of anti-stripping constituents in asphalt binders or asphalt mixtures
Methods, systems, and computer program products analyze asphalt samples for anti-stripping agents by: obtaining a sample comprising asphalt binder material; sensing a selected parameter associated...
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7008793 |
Method and device for taking a sample of an emulsion circulating in a line
The present invention is intended to take a sample of an emulsion circulating in a line. The emulsion is momentarily diverted from the main circulation line 1 thereof to a bypass line 2 . By...
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6890762 |
Method for measuring physiocochemical properties of tissues of cells, method for examining chemicals, and apparatus therefor
A method of measuring the physical and chemical properties of tissue or cells and a device for the same is provided, with which the physical and chemical environment of the tissue or cells can be...
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6852286 |
Device for extracting and taking samples from an aqueous solution in a substrate
A device is provided for extraction of samples of an aqueous solution in a substratum. A probe made up of a pyrometric capsule of porous porcelain has one end of lesser diameter to which is...
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6485979 |
Electronic system for tracking and monitoring articles to be sterilized and associated method
A electronic system for tracking and monitoring articles to be subjected to a sterilization cycle is disclosed. The method uses a sterilization indicator and electronically links sterilization...
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6477907 |
Detection of explosives in soils
An apparatus and method for detecting explosive-indicating compounds in subsurface soil. The apparatus has a probe with an adsorbent material on some portion of its surface that can be placed into...
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6413782 |
Methods of manufacturing high-throughput screening systems
Microfluidic devices for analyzing a plurality of compounds are manufactured for performing high throughput screening assays. The methods are used to manufacture devices that screen large numbers...
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6319717 |
Thermal acid base accounting in mine overburden
The present invention is a one-step thermal method for analyzing the acid-base content of earth samples, specifically mine overburden samples. By using a low oxygen concentration, preferably about...
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6242261 |
Assessment of ion availability in heterogeneous media using ion-exchange membranes
The invention relates to a kit for the measurement of anion, cation or zwitterion availability in a medium or for the measurement of free inorganic ions in disrupted cells from plant or animal...
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6187268 |
Transparent flow through membrane for dry reagent analytical devices
Disclosed is a diagnostic device for the colorimetric detection of an analyte in a test fluid. The device is a dry reagent layer which is overcoated with a transparent, fluid permeable membrane....
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6117682 |
Method for detecting hydrocarbons in water
The presence of hydrocarbons in water is detected by contacting a water sample with an adsorbent material to extract hydrocarbons from the water sample and then contacting the adsorbent material...
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5976883 |
Method for testing earth samples for contamination by organic contaminants
Provided is a method for testing earth samples for contamination by organic contaminants, and particularly for aromatic compounds such as those found in diesel fuel and other heavy fuel oils,...
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5958777 |
Device for determining CO.sub.2 and CO in a geologic sediment
A device for determining at least one petroleum characteristic of a geologic sediment sample placed in a boat, said device including a first heater heating said sample in a non-oxidizing...
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5955372 |
Detection of concrete deterioration by staining
A method using concentrated aqueous solutions of sodium cobaltinitrite and a rhodamine dye is described which can be used to identify concrete that contains gels formed by the alkali-silica...
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5942440 |
Method for detecting organic contaminants in water supplies
A system for detecting organic contaminants in water supplies. A sampling unit is employed which includes a housing having at least one opening therein and a tubular member positioned within the...
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5928950 |
Method for detecting hydrocarbons in soil
The presence of hydrocarbons in soil is detected by immersing a soil sample in a water-miscible solvent capable of dissolving the hydrocarbons to extract hydrocarbons from the soil into the...
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5928948 |
Method for the assessment and validation of cleaning processes
A porous material (10) is contaminated with soil (14). Optionally, the porous material is partially shielded by an impermeable layer. The contaminated porous material is packaged and shipped to a...
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5922611 |
Determining a parameter in a physical system
A method of determining a parameter of a physical model representing the electrical behavior of a composition is provided. The method comprises defining said model by a relationship between the...
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5919710 |
Optical method for quantitating dissolved oxygen in fuel
A method for the quantitative determination of dissolved oxygen in a liquid fuel includes the steps of doping a sample of the fuel with a preselected concentration of a probe material including a...
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5905043 |
Tagging and identifying organic liquids including fuels
A water-immiscible organic fluid is tagged and identified by tagging the organic fluid with between about 0.25 and about 100 ppm of a marker compound having the formula: ##STR1## where the OH...
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5843787 |
Method allowing the fast assessment of at least one petroleum characteristic of a rock sample-application to a reservoir comprising heavy oils
A method allowing fast assessment of at least one petroleum characteristic of geologic sediments from a sample of these sediments, said method comprising heating the sample in a non-oxidizing...
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5811308 |
Method for determining petroleum characteristics of geologic sediments
The present invention relates to a method for determining at least one petroleum characteristic of a geologic sediment sample heated in a non-oxidizing atmosphere and an oxidizing atmosphere. The...
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5801061 |
Method for the colorimetric determination of analytes in the presence of interfering particulate materials
The present invention involves a unitized dry reagent test device and method for removing the interference caused by suspended particulate materials in the calorimetric determination of analytes in...
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5759859 |
Sensor and method for detecting trace underground energetic materials
A subsurface soil contaminant identification system employs a cone penetrometer unit for continuously measuring the concentration of energetic materials in potentially contaminated soils. The...
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5739035 |
Detection of alkali-silica reaction swelling in concrete by staining
A method using concentrated aqueous solutions of sodium cobaltinitrite and rhodamine B is described which can be used to identify concrete that contains gels formed by the alkali-silica reaction...
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5663073 |
Earth formation porosity estimation method
A method for determined porosity of an earth formation surrounding a borehole without prior knowledge of formation lithology. Neutron logging tools are used to measure thermal neutron porosity,...
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5641642 |
In situ biofilm coupon device
An apparatus for characterization of in-situ microbial biofilm populations in subsurface groundwater. The device permits biofilm-forming microorganisms to adhere to packing material while emplaced...
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5520046 |
Process for the chemical logging of a liquid and chemical logging installation for performing said process
The invention relates to a process for the chemical logging of a liquid and to an installation for performing the process. An object of the invention is to develop a process which makes it possible...
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5470749 |
Method for determining steam quality using a foaming surfactant
Steam quality is measured by mixing the steam with a small amount of surfactant to convert the steam to a stable foam, passing the stable foam through a capillary tube to determine foam quality...
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5439800 |
Offshore petroleum exploration system
A system is provided for locating and delineating sea floor occurrences of petroleum seepage, achieved by apparatus for the detection of the resulting abnormal distribution of electrical potential...
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5426035 |
Method of compensating toxicity test data for the measured toxicity of a reference sample
A method for compensating toxicity test data for the measured toxicity of a reference sample by the steps of: a. obtaining toxic response data for a plurality of concentrations of at least two...
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5351532 |
Methods and apparatus for making chemical concentration measurements in a sub-surface exploration probe
An in-hole oil-drilling probe is mountable in a drill string to measure hydrocarbon concentrations in drilling fluid flowing around the drill string. The probe consists of a drill collar which is...
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5323648 |
Formation evaluation tool
A tool for measuring the mechanical properties of a formation through which a borehole has been drilled, comprising a tool body capable of being lowered into a borehole, the tool body having pads...
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5316950 |
Method for quantitative calibration of in situ optical chemical measurements in soils using soil class and characteristics
A method assures the quantitative or semiquantitative assessment of analytes in soils by in situ optical methods. A determination is made of the optical chemical response factors for chemicals of...
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5256572 |
Method for determining residual oil saturation of a watered-out reservoir
A method for determining residual oil saturation of a watered-out reservoir using two water soluble tracers having different partition coefficients in oil. The partitioning tracers are selected...
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5246862 |
Method and apparatus for in-situ detection and determination of soil contaminants
A reagent carrying tape is captured between the soil and the outer wall of penetrometer. As the penetrometer moves with respect to the soil, the tape is pressed against an optical window in the...
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4919892 |
Apparatus for detecting oil and other lighter-than-water contaminants in an effluent stream
An apparatus for detecting oil and other lighter-than-water contaminants in an effluent stream in a sewage system. The apparatus includes a disposable detector which floats in the effluent stream...
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4900686 |
Fluorescent conjugates and biological diagnostic assay
There are provided novel fluorescent conjugates comprising a rhodamine dye moiety and a biologically active moiety. In addition, there are provided methods for determining an analyte in a...
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4857473 |
Water sampling system
The invention relates to a device for the sampling of liquids which permeate dialysis membranes, comprising cells bounded by two such membranes. The device according to the invention is suited for...
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4805450 |
Method of locating hydrocarbon producing strata and the instrument therefor
A cylinder is mounted to descend a borehole for purposes of measuring the mass flow rate of gas flowing upward in the borehole. Within the cylinder is a source of tracer gas which is ejected at a...
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4696903 |
Method and apparatus for examining earth formations
A method and apparatus are described for logging an open hole well, or the like, for the purpose of determining the presence of a given constituent in the various substrata and for providing means...
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4681854 |
Geochemical oil prospecting method using in situ simulation of diagenetic processes
A process for in situ simulation of diagenetic processes in a subterranean formation is provided. A mineral substrate is placed in the formation of interest in a sealed vessel. The vessel is opened...
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4646832 |
Determining residual oil saturation by injecting salts of carbonic and halocarboxylic acids
Residual oil saturation is determined by injecting water containing or contacting dissolved halocarboxylic acid salt and carbonate salt into an oil and water containing reservoir and...
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