Abstract: A silica-based stationary phase for chromatography columns and the methods of preparing such. More particularly, but not by way of limitation, a silica-based stationary phase that is substantially free of polyethers (e.g., polymer glycols). Also, a chromatography column comprising a silica-based stationary phase substantially free of polyethers (e.g., polymer glycols) within its channels as either a thin-film coating and/or a monolith and/or a monolithic coating. More particularly, a micro-electro-mechanical system (MEMS) chromatograph comprising a silica-based monolith substantially free of polyethers (e.g., polymer glycols) as the stationary phase within the micro-channels of the column.

Abstract: Gas-extraction device (152) for extracting at least one gas contained in a drilling mud, the device comprising: —an enclosure (162), —an equipment (164) for supplying the drilling mud to the enclosure (162), —an equipment (170) for introducing a carrier gas into the enclosure (62; 162), wherein the device comprises a flow regulator (204) able to regulate the flow rate of a gas flow containing at least carrier gas, and a pressure controller situated downstream of the enclosure (162) configured for locally setting a pressure lower than the pressure of the enclosure (162), wherein the flow, regulator (204) is interposed between the pressure controller and the enclosure (162).

Abstract: The disclosure relates to a method of analyzing at least a rock sample extracted from a geological formation. The method comprises: heating the at least one rock sample under inert atmosphere with a temperature below 300° C. and with a flow of inert gas to remove contaminants, analyzing at least one of the decontaminated rock samples and determining at least a property relative to non-volatile organic matter contained in the geological formation based on the analysis.

Abstract: A computer system including a processor executing processor-executable code stored in a non-transitory processor-readable medium, causing the processor to receive a signal via an input port, including data indicative of an amount of a combustion product produced by a sample of drill cuttings subjected to oxidation at a constant temperature (1000° C. or 650° C. 100° C.) as a function of time and process the data according to a predetermined logic to: locate a peak in the amount of the combustion product produced at a set of instants in time; correlate the set of instants in time with the presence in the sample of an organic carbon from a contaminant or light volatile carbon molecules, organic carbon, and inorganic carbon; calculate at least one of an amount of contaminant, a total amount of organic carbon, and a total amount of inorganic carbon; and output a signal indicative of the calculated amount.

Abstract: The disclosure relates to a method of analyzing at least a rock sample extracted from a geological formation. The method comprises: heating the at least one rock sample under inert atmosphere with a temperature below 300° C. and with a flow of inert gas to remove contaminants, analyzing at least one of the decontaminated rock samples and determining at least a property relative to non-volatile organic matter contained in the geological formation based on the analysis.

Abstract: Gas-extraction device (152) for extracting at least one gas contained in a drilling mud, the device comprising: —an enclosure (162), —an equipment (164) for supplying the drilling mud to the enclosure (162), —an equipment (170) for introducing a carrier gas into the enclosure (62; 162), wherein the device comprises a flow regulator (204) able to regulate the flow rate of a gas flow containing at least carrier gas, and a pressure controller situated downstream of the enclosure (162) configured for locally setting a pressure lower than the pressure of the enclosure (162), wherein the flow, regulator (204) is interposed between the pressure controller and the enclosure (162).

Abstract: A device (118) for automatically calibrating an analyzer (112) used for mud gas or fluid logging, comprising: a cabinet (140) having a plurality of dedicated reception slots (144), each slot (144) being configured for the insertion of a canister (148) containing a known calibration mixture, the cabinet (140) containing: a main line (174) to be connected to the analyzer (112), a connection assembly able to selectively connect each reception slot (144) to the main line (174), a control unit (151) for controlling the connection assembly to successively connect at least two successive slots (144) to the main line (174).

Abstract: A silica-based stationary phase for chromatography columns and the methods of preparing such. More particularly, but not by way of limitation, a silica-based stationary phase that is substantially free of polyethers (e.g., polymer glycols). Also, a chromatography column comprising a silica-based stationary phase substantially free of polyethers (e.g., polymer glycols) within its channels as either a thin-film coating and/or a monolith and/or a monolithic coating. More particularly, a micro-electro-mechanical system (MEMS) chromatograph comprising a silica-based monolith substantially free of polyethers (e.g., polymer glycols) as the stationary phase within the micro-channels of the column.

Abstract: The device comprises an extractor (53) having an outlet (71) at which a gas stream is sampled. The gas stream contains at least one hydrocarbon to be analyzed and at least one interfering compound. A transport line (54), is connected to the outlet (71) of the extractor (53) to transport the gas stream to an analyzer (55A) comprising a detector being able to measure at least one of the hydrocarbons to be analyzed contained in this gas stream. The device comprises a chemical reactor (141) located between the extractor (53) and the detector. At least a portion of the extracted gases is transported through the chemical reactor (141) where a selective catalytic reaction of at least one interfering compound is carried out without any substantial reaction of at least one of the hydrocarbons to be analyzed.

Abstract: A computer system including a processor executing processor-executable code stored in a non-transitory processor-readable medium, causing the processor to receive a signal via an input port, including data indicative of an amount of a combustion product produced by a sample of drill cuttings subjected to oxidation at a constant temperature (1000° C. or 650° C. 100° C.) as a function of time and process the data according to a predetermined logic to: locate a peak in the amount of the combustion product produced at a set of instants in time; correlate the set of instants in time with the presence in the sample of an organic carbon from a contaminant or light volatile carbon molecules, organic carbon, and inorganic carbon; calculate at least one of an amount of contaminant, a total amount of organic carbon, and a total amount of inorganic carbon; and output a signal indicative of the calculated amount.

Abstract: The disclosure relates to a system and method for analyzing a gaseous sample extracted from a drilling fluid coming from a wellbore. The system comprises a surface assembly, situated outside of the wellbore and including: an extractor for extracting a gaseous sample from the drilling fluid, a quantification device connected to the extractor for quantifying at least a gaseous constituent contained the gaseous sample. The quantification device comprises at least a photoacoustic cell in fluid communication with the extractor, at least a light source for emitting a light beam at a predetermined emission spectrum in the photoacoustic cell, at least an acoustic detector positioned in the photoacoustic cell and a processor for calculating a parameter relative to the quantity of the gaseous constituent on the basis of a signal obtained from the detector.

Abstract: A device (118) for automatically calibrating an analyzer (112) used for mud gas or fluid logging, comprising: a cabinet (140) having a plurality of dedicated reception slots (144), each slot (144) being configured for the insertion of a canister (148) containing a known calibration mixture, the cabinet (140) containing: a main line (174) to be connected to the analyzer (112), a connection assembly able to selectively connect each reception slot (144) to the main line (174), a control unit (151) for controlling the connection assembly to successively connect at least two successive slots (144) to the main line (174).

Abstract: A fast field mud gas analyzer is presented. The fast field mud gas analyzer has a splitter system; a plurality of analytical lines composed of a micro chromatographic column and one or more detector; one or more heating element; and a computer system. The splitter system selectively applies a portion of an effluent sample flow through one or more outlets. The analytical lines are in fluid communication with the splitter system and receive at least a portion of the effluent sample flow. The micro chromatographic column separates portions of the effluent sample flow. The detector analyzes the separated portions and generates information indicative of analysis of the separated portions. The heating element heats the portion of the effluent sample flow within the analytical line. The computer system controls the splitter system and the one or more heating element and receives the information from the detectors.

Abstract: A device includes a device for forming a gaseous flow from the sample and a device for separation of each specific gaseous constituent. The device also includes a device for quantifying the relative contents of the two isotopes to be analyzed which comprise an optical measurement cell. The cell includes two mirrors which delimit a measurement cavity. The device includes a device for introducing an incident optical signal into the measurement cavity, a device for generating a plurality of reflections of the signal in separate points on each mirror during its travel in the cavity, a device for measuring a transmitted optical signal resulting from an interaction between the optical signal and each isotope in the measurement cavity, and a device for calculating the relative contents on the basis of these signals.

Abstract: The method includes extraction of gases contained in a mud, in order to obtain a gas stream of extracted gases containing hydrocarbons to be analyzed and at least one parasitic compound. The method includes transporting the gas stream through a transport line (54) and passing it through a separation column (121) in order to separate the hydrocarbons to be analyzed according to their elution times in the separation column (121). The parasitic compound is likely to have an elution time in the separation column (121) between the elution time for the first hydrocarbon to be analyzed and the elution time of the final hydrocarbon to be analyzed. The method includes passing the gas stream over a surface (141) for chemical and/or physical interaction with the parasitic compound in order to selectively retain the or each parasitic compound without retaining the hydrocarbons to be analyzed.

Abstract: This device comprises a means (111) for forming a gaseous flow from the sample, and a means (121) for separation by means of selective retention each gaseous constituent. It comprises a means (113) for combustion of the gaseous flow in order to form a gaseous residue from each constituent, and a means (115) for quantifying the content of each constituent to be analysed in the gaseous flow. The quantification means (115) comprise an optical measurement cell (127) which is connected to the combustion means (113), and a means (161) for introducing a laser incident optical signal into the cell (127). The quantification means (115) also comprise means (133) for measuring a transmitted optical signal resulting from an interaction between the optical signal and each gaseous residue in the cell (127), and means (125) for calculating said content on the basis of the transmitted optical signal.

Abstract: Systems and methods for high speed mud gas logging are described. A general workflow of mud gas logging uses tandem mass spectroscopy. The workflow involves first separating the volatile components of the hydrocarbons (typically C8 and below) from the drilling fluid using a fluid extractor (or degaser). Extracted gases are then diluted in air and transported to an analyzer, which measures the concentration of each of those gases in air. A tandem mass spectroscopy-based analyzer is used that is able to quantify each of those hydrocarbon components, including resolving isomeric species, while tolerating the presence of the non-hydrocarbons. According to some embodiments, triple quadrapole mass spectroscopy is used.

Abstract: The device comprises an extractor (53) having an outlet (71) at which a gas stream is sampled. The gas stream contains at least one hydrocarbon to be analyzed and at least one interfering compound. A transport line (54), is connected to the outlet (71) of the extractor (53) to transport the gas stream to an analyzer (55A) comprising a detector being able to measure at least N one of the hydrocarbons to be analyzed contained in this gas stream. The device comprises a chemical reactor (141) located between the extractor (53) and the detector. At least a portion of the extracted gases is transported through the chemical reactor (141) where a selective catalytic reaction of at least one interfering compound is carried out without any substantial reaction of at least one of the hydrocarbons to be analyzed.

Abstract: This device includes a stage for forming a gaseous flow from the sample, and a column for separation by selective retention of each gaseous constituent. It includes an oven for combustion of the gaseous flow in order to form a gaseous residue from each constituent, and a quantification unit for quantifying the content of each constituent to be analyzed in the gaseous flow. The quantification unit includes an optical measurement cell connected to an oven, and a mirror for introducing a laser incident optical signal into the cell. The quantification unit also measures a transmitted optical signal resulting from an interaction between the optical signal and each gaseous residue in the cell, and calculates the content on the basis of the transmitted optical signal.

Abstract: Systems and methods for high speed mud gas logging are described. A general workflow of mud gas logging uses tandem mass spectroscopy. The workflow involves first separating the volatile components of the hydrocarbons (typically C8 and below) from the drilling fluid using a fluid extractor (or degaser). Extracted gases are then diluted in air and transported to an analyzer, which measures the concentration of each of those gases in air. A tandem mass spectroscopy-based analyser is used that is able to quantify each of those hydrocarbon components, including resolving isomeric species, while tolerating the presence of the non-hydrocarbons. According to some embodiments, triple quadrapole mass spectroscopy is used.