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| Number | Title | Issue Date |
| 7435597 | Assays for zero-valent transition metals in sedimentary rocks using carbon monoxide with application to oil and gas exploration The present invention is directed to novel assays for zero-valent transition metals. The novel assays of the present invention are generally methods or processes for quantitatively and/or qualitatively evaluating the presence of zero-valent transition metals on and/... | 10/14/2008 |
| 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 of the soil. The method and apparatus also provide verification of th... | 07/01/2008 |
| 7363978 | Methods of using reactive surfactants in subterranean operations Novel uses of reactive surfactants in treating subterranean formations and/or proppant particulates are provided. In one embodiment, the present invention provides a method comprising: providing a treatment fluid that comprises a base fluid and a reactive surfactant... | 04/29/2008 |
| 7253005 | Catalyst sampling system A method and apparatus are provided for obtaining a reproducible sample of solid particles. The reproducible sample is obtained by receiving solid particles into a collection system that includes a sheltered volume. Solid particles that settle outside of the shelter... | 08/07/2007 |
| 7201874 | System for automatically extracting and analyzing residual solvents in material samples A system for quickly and automatically extracting and analysing residual solvents is realised for operating directly in the premises where the packing materials are being manufactured, printed and/or laminated. The system provides for a single unit equipped w... | 04/10/2007 |
| 7153688 | Rock assay for predicting oil or gas in target reservoirs The present invention relates to assays for ascribing catalytic activity to rock samples by virtue of zero-valent transition metals potentially being present within the sample. Embodiments of the present invention are generally directed to novel assays for measuring... | 12/26/2006 |
| 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 restoring circulation of the emulsion in main line 1, a... | 03/07/2006 |
| 6964730 | Purification apparatus and method Disclosed is a purification apparatus and method. The purification apparatus includes: a mobile phase distillation part for distilling a mobile phase; a mobile phase liquefaction part for liquefying the distilled mobile phase; and a purification part disposed betwee... | 11/15/2005 |
| 6950750 | Method of estimating the gas/oil ratio (GOR) in the fluids of a well during drilling A method of evaluating the volume ratio of gas to oil (GOR) in the fluids of a well during drilling by direct or indirect measurement of the volumes of gas and oil in the cuttings. The method includes determining the volume of gas (Vg) contained in the drilling flui... | 09/27/2005 |
| 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 attached a tube of inert material. The tube is sealed hermetically by a rubb... | 02/08/2005 |
| 6773921 | Predicting proximity to coke formation Indicia of stability or thresholds of instability may be used to assess the proximity of hydrocarbon materials such as petroleum residua to deposition of carbon rich materials. The invention may be used to evaluate suitability of such hydrocarbon materials to variou... | 08/10/2004 |
| 6630357 | Quantification of bitumen using NMR A method of determining the composition of a sample including heavy oil or bitumen and water using low-field NMR. The NMR spectrum of the sample is taken at relatively low and high temperatures and the oil or water content is determined from the spectra a... | 10/07/2003 |
| 6599747 | Soil test A test for determining the bioavailable fraction of an organic pollutant present in soil comprises determining the fraction of the organic pollutant present in the soil which may be extracted by a cyclodextrin or derivative thereof.... | 07/29/2003 |
| 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, kerosene, creosote, coal oil, tars and asphalts. A drying step ... | 11/02/1999 |
| 5969240 | Methods for determining irreducible water resistivity and estimating oil well reserves A method for determining the resistivity of water in an oil well site that includes rock that is capable of water entrapment, includes the steps of: (a) retrieving a sample of the rock; (b) identifying any entrapped water in the sample; and (c) determining the resi... | 10/19/1999 |
| 5958777 | Device for determining CO2 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 atmosphere, a measuring component determining hydrocarbon-containing... | 09/28/1999 |
| 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 user site. The contaminated porous material is removed from... | 07/27/1999 |
| 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 electrical properties of the composition, a plurality of phys... | 07/13/1999 |
| 5876671 | Sonication standard laboratory module A standard laboratory module for automatically producing a solution of cominants from a soil sample. A sonication tip agitates a solution containing the soil sample in a beaker while a stepper motor rotates the sample. An aspirator tube, connected to a v... | 03/02/1999 |
| 5858791 | Method and device for the continuous measurement of variations in the overall saturation of a sample with incompressible immiscible fluids Saturation variations are obtained by displacing a first fluid (for example water) that initially saturates a sample (1) coated with resin (2) by injecting therein, through a first end plate or cap (3) and by means of a pump (7), a second fluid (for examp... | 01/12/1999 |
| 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 atmosphere, and which method comprises different temperature ri... | 12/01/1998 |
| 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 sample is heated to a first temperature value below 200° C... | 09/22/1998 |
| 5786225 | Method for evaluating a pollution characteristic of a soil sample A method of evaluating at least on type of pollution characteristic in a soil sample contaminated by hydrocarbon compounds, a method wherein the soil sample is first heated in a non-oxidizing atmosphere, then in an oxidizing atmosphere. The method compris... | 07/28/1998 |
| 5766953 | Determination of the source of a soil sample Methods to determine the geographic sources of soil samples are described. A biological fingerprint profile of the sample is determined. The profile is compared to a library which is constructed of datasets which relate biological profiles and geographic ... | 06/16/1998 |
| 5741707 | Method for quantitative analysis of earth samples A method and apparatus for analyzing a sample to determine its mineral composition. The invention combines X-ray diffraction with Fourier transform infrared spectroscopy to provide a complete spectrum including molecular vibrations, probed by FTIR scans a... | 04/21/1998 |
| 5595914 | Gypsum determination in soils by conversion to water-soluble sodium sulfate Precise and accurate determination of gypsum in soils has been difficult, laborious and time consuming by currently available methods. The present invention solves such problems by: 1) Direct removal of nongypsic sulfate from 2-g soil sample with 25-mL po... | 01/21/1997 |
| 5561065 | 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, kerosene, creosote, coal oil, tars and asphalts. A drying step ... | 10/01/1996 |
| 5526705 | Automated work station for analyzing soil samples An apparatus analyzes a plurality of soil samples to determine characteristics of the soil samples. An input portion sequentially provides a plurality of soil samples each having a known solid content. A plurality of vessels are supported for movement wit... | 06/18/1996 |
| 5416024 | Obtaining collective fluid inclusion volatiles for inclusion composition mapping of earth's subsurface A collective fluid inclusions volatiles sample is released from each of a plurality of sedimentary rock samples and analyzed as it is being released to determine composition thereof. Compositions are used for mapping the earth's subsurface.... | 05/16/1995 |
| 5395768 | Method to evaluate the Rwb parameter of the dual water log interpretation model A method is described to evaluate the Rwb parameter, which can be applied to the Dual Water log interpretation model by measuring the resistivity of initial brines and of filtrates from muds prepared with shales. The method allows a more precis... | 03/07/1995 |
| 5385827 | Method of geochemical prospecting A method of geochemical prospecting where samples of soil, sediment and rock in a geological area are collected and each sample is contacted with a leach solution of water, glucose and glucose oxidase. The oxidase acts upon the glucose to produce gluconic... | 01/31/1995 |
| 5344781 | Detection and prevention of hydrocarbon leakage from underground storage tanks Methods and apparatuses for detecting leakage of hydrocarbons from and preventing corrosion of underground storage tanks. Soil samples near an underground storage tank are taken and analyzed in the field, preferably using hexane as a solvent to detect the... | 09/06/1994 |
| 5328849 | Inclusion composition mapping of earth's subsurface using collective fluid inclusion volatile compositions A collective fluid inclusions volatiles sample is released from each of a plurality of sedimentary rock samples and analyzed as it is being released to determine composition thereof. Compositions are used for mapping the earth's subsurface.... | 07/12/1994 |
| 5306640 | Method for determining preselected properties of a crude oil Methods are provided for using Nuclear Magnetic Resonance (NMR) spectroscopy to measure the bulk volume of oil and water in the polyurethane liner of sponge core. The method is accurate, rapid, and non-destructive. It provides information simultaneously i... | 04/26/1994 |
| 5299453 | Method for determining oil and water saturation of core samples at overburden pressure A method and apparatus is provided to determine the amount of oil and water or brine in a representative core sample of reservoir rock at an overburden stress which approximates reservoir stress conditions. The core sample is initially saturated with rese... | 04/05/1994 |
| 5288695 | Potassium-argon dating of illite components in an earth sample A process for determining an end member age of an illite component in an earth sample which contains a diagenetic illite component and a detrital illite component. As a first step, the sample is separated into a plurality of fractions so that the fraction... | 02/22/1994 |
| 5286651 | Determining collective fluid inclusion volatiles compositions for inclusion composition mapping of earth's subsurface A collective fluid inclusions volatiles sample is released from each of a plurality of sedimentary rock samples and analyzed as it is being released to determine composition thereof. Compositions are used for mapping the earth's subsurface. The sample is ... | 02/15/1994 |
| 5181428 | Method and means for testing soil samples A device for testing soil samples is comprised of a closed container having an interior compartment with upper and lower portions. A valve is provided for introducing into the closed container a liquid having the general properties of butane, and a second... | 01/26/1993 |
| 5174966 | Laboratory device and method for treating rock samples A laboratory device and method are adapted to subject a same rock sample to successive liquid treatments without any intermediary handling of the sample. The device combines a chamber comprising a first part fitted with an inlet for introducing a rock sam... | 12/29/1992 |
| 5147611 | Optical and pyrolyzate analyzer apparatus A heating and targeting laser beam and microscope apparatus optically senses, heats to generate a effluent fluid and chemically analyzes the thermal extract fluid or fluid pyrolyzates from a microscopic particle within a heterogeneous composite sample. A ... | 09/15/1992 |
