Frequency sensors for use in subterranean formation operations

    公开(公告)号:US10428649B2

    公开(公告)日:2019-10-01

    申请号:US15540250

    申请日:2016-09-30

    Abstract: The present disclosure relates to vibration frequency sensors comprising a vibratable flow tube having an interior for receiving a fluid, a vibration detector coupled to the flow tube for detecting a frequency of the fluid received by the flow tube during vibration thereof; and measurement circuitry coupled to the vibration detector for determining a frequency shift over time of the detected frequency. At least a portion of a surface of the interior of the flow tube is functionalized with a reactant sensitive to the analyte, and the frequency shift corresponds to the presence of the analyte, the analyte having reacted with the reactant.

    Opticoanalytical devices with capacitance-based nanomaterial detectors

    公开(公告)号:US10260946B2

    公开(公告)日:2019-04-16

    申请号:US15306905

    申请日:2015-11-13

    Abstract: Optical computing devices may include capacitance-based nanomaterial detectors. For example, an optical computing device may include a light source that emits electromagnetic radiation into an optical train extending from the light source to a capacitance-based nanomaterial detector; a material positioned in the optical train to optically interact with the electromagnetic radiation and produce optically interacted light; and the capacitance-based nanomaterial detector comprising one or more nano-sized materials configured to have a resonantly-tuned absorption spectrum and being configured to receive the optically interacted light, apply a vector related to the characteristic of interest to the optically interacted light using the resonantly-tuned absorption spectrum, and generate an output signal indicative of the characteristic of interest.

    Methods and systems for evaluation of rock permeability, porosity, and fluid composition

    公开(公告)号:US10167719B2

    公开(公告)日:2019-01-01

    申请号:US14404186

    申请日:2013-09-03

    Abstract: Methods and systems for substantially simultaneous evaluation of rock sample permeability and porosity, and composition of formation fluids, are provided. Such methods and systems may be used to evaluate the permeability, porosity, and composition of at least a portion of a subterranean formation in a drilling operation. An example of such a method may include passing a cleaning fluid through the rock sample so as to extract at least a portion of one or more formation fluids from the rock sample in an effluent comprising the cleaning fluid and the portion of the one or more formation fluids; and determining one or more properties of the effluent so as to determine the composition of the portion of the one or more formation fluids, and so as to determine the permeability and porosity of the rock sample.

    Opticoanalytical Devices With Capacitance-Based Nanomaterial Detectors

    公开(公告)号:US20170268926A1

    公开(公告)日:2017-09-21

    申请号:US15306905

    申请日:2015-11-13

    Abstract: Optical computing devices may include capacitance-based nanomaterial detectors. For example, an optical computing device may include a light source that emits electromagnetic radiation into an optical train extending from the light source to a capacitance-based nanomaterial detector; a material positioned in the optical train to optically interact with the electromagnetic radiation and produce optically interacted light; and the capacitance-based nanomaterial detector comprising one or more nano-sized materials configured to have a resonantly-tuned absorption spectrum and being configured to receive the optically interacted light, apply a vector related to the characteristic of interest to the optically interacted light using the resonantly-tuned absorption spectrum, and generate an output signal indicative of the characteristic of interest.

Patent Agency Ranking