185results about "Detection/prospecting using thermal methods" patented technology

A method for estimating the thermal properties of surface materials using long-wavelength thermal imagery by exploiting the differential heating histories of ground points in the vicinity of shadows. The use of differential heating histories of different ground points of the same surface material allows the use of a single image acquisition step to provide the necessary variation in measured parameters for calculation of the thermal properties of surface materials.

Devices and methods for measuring subsurface thermal fluxes and for estimating a rate of change in the amount of a reactive material within a subsurface formation using the measured thermal fluxes are described herein. The methods of measuring subsurface thermal fluxes may use at least one array of temperature sensors distributed along a vertical transect projecting from the surface and into the subsurface of a region of interest. Methods of estimating a rate of change in the amount of a reactive material within a portion of the region of interest based on perturbations of the thermal profile within the subsurface due to an endothermic or exothermic degradation of the reactive material within the portion of the region of interest are also described herein.

A method and device are revealed to non-invasively identify hidden foreign objects in proximity of living tissue. More specifically to a method and device find a foreign object hidden under the clothes of a person by measuring an anomaly in an infrared radiation signal emitted by the human subject; the anomaly caused by the presence of the foreign object. A spectral scan at the identified location is used to identify the object. Even when the object is hidden behind clothes, the object is positively identified based on the interaction of optical radiation naturally emitted by the human body in the infrared frequency spectrum with every component of the examined object.

The present invention belongs to the uranium geology and resource evaluation technology field, in particular to a method of positioning the uranium deposits rapidly and effectively in a hot spot active region. The method comprises the following steps of 1 determining a hot spot active region range and a geological background; 2 screening and positioning a uranium mineralization favorable area in the hot spot active region; 3 screening and positioning a key section in a favorable metallogenic region; 4 determining a uranium mineralization environment in the key section; 5 integrating the metallogenic information and predicting the mineralization; 6 drilling and verifying in the key section. A uranium deposit and ore body positioning technology of the present invention is based on a brand new hot spot uranium mineralization theory and a prediction method and combines the geology, geophysics and geochemistry features to carry out the regional mineralization prediction and positioning on the basis of fully mining the previous data, and an operation method is simple and convenient and is high in accuracy, the prediction blindness is reduced, and the evaluation time is shortened.

The invention relates to a method for exploiting (EXP) a subsurface deposit comprising at least one outcrop, the exploitation (EXP) of the deposit is based on a geological model (MOD) formed from a photogrammetry. The method reconstructs the geological outcrops in three dimensions (R3D) from photographs (PHO), and interprets the geological elements thereof, such as the sedimentary surfaces, the geological facies, the fault lines and the fractures, the inclination of the beds, etc. to construct a geological model of the deposit (MOD).

Methodology, systems, and apparatus for remote sensing as by detection and mapping of subsurface artifacts including clandestine tunnels and other subterranean facilities that may carry enemy soldiers, terrorists, weapons, munitions and explosives and other material of war or terrorism by use of visual and thermal imagery, specifically including the use of infrared (IR) thermography and related analysis, including visual imagery and its analysis including correlation between IR thermography data, visual data and other information which can be taken into consideration in relation to IR thermography data and visual data. Various types of data enhancements may be used to assist in target detection.

The invention discloses a sectional type ground temperature gradient fitting method based on a stratigraphic unconformity surface. The method comprises the steps of: 1) determining the distribution and burial depth of the stratigraphic unconformity surface, obtaining temperature measurement data, and drawing a ground temperature curve with the temperature and the burial depth respectively serving as a transverse coordinate and a longitudinal coordinate; 2) in the range of 0-100 m downward from the stratigraphic unconformity surface, selecting the most bending part of the ground temperature curve as a ground temperature gradient critical surface, and dividing the ground temperature curve into an upper cure and a lower curve; 3) carrying out linear fitting respectively on temperature measurement data corresponding to the upper curve and the lower curve, and obtaining an upper straight line and a lower straight line, wherein the gradients thereof are respectively the ground temperature gradients of a shallow stratum and a deep stratum and reflect the practical ground temperature field of a temperature measurement well area. The method is characterized in that according to the development characteristics of stratums in different areas, the ground temperature gradients above and below the ground temperature gradient critical surface are independently fitted, so that the ground temperature gradients of upper and lower stratums are obtained, the ground temperature field characteristics of new and old stratums are really reflected, and a reliable basis is provided for oil and gas and geothermal resources exploration, development and utilization.

The invention discloses a method for rapidly evaluating shale oil resources. The method comprises the following steps of A, establishing a evolutionary graph of the generating, discharging and remaining of hydrocarbon source rock by a kerogen swelling experiment simulating method, and calculating the sinking total oil generating amount, the hydrocarbon remaining amount and the hydrocarbon discharging amount; B, selecting the shale area, the effective thickness, the density, a pyrolysis S1, a light hydrocarbon recovery coefficient, a shale oil adsorption coefficient and other effective parameters, and calculating the amount of the shale oil resource by adopting a mass oil content method. The invention aims to provide the method for rapidly evaluating shale oil resources. The method is suitable for calculation of the amount of the shale oil, and is used for determining the distribution rule of the shale oil, determining the distribution range of the shale oil, providing a support for improving the exploration effect, and providing a feasible technical method for evaluating the shale oil resource more objectively and accurately, and particularly evaluating a beneficiation region of the shale oil and determining beneficial geological conditions of the beneficiation region.

A system for mapping a thermocline in a body of fluid includes a thermocline detection and monitoring module, a persistent data storage module; and a plurality of distributed sensors, including intelligent sensors, connected with the at least one thermocline detection and monitoring module and the persistent data storage module by one or more control-level programming and communication methods. The thennocline detection and monitoring module can monitor the thermocline at sampling intervals to collect and fuse measurement data from the plurality of sensors to capture thermocline changes as events, correlate measurement data and events, store measurement data in the persistent data storage module along with previously acquired measurement data for comparison and tracking, characterize the thermocline as a function of spatial location, depth, and time, create and maintain reports that describe the thermocline characteristics, status, trends, and provide multimodal notifications of events to different users.

A system for optimizing placement of a second wellbore relative to a first wellbore utilizing i) steam injected into the first wellbore in combination with a temperature sensor located in the second wellbore and ii) electromagnetic (EM) fields emanating from the first wellbore in combination with an EM sensor in the second wellbore. The magnetic measurements made with the EM sensor are utilized to determine azimuthal placement of a wellbore, while temperature measurements made with the temperature sensor are utilized to determine distance for placement of the wellbore.

Methods for developing equation-of-states (EOS) composition models for predicting petroleum reservoir fluid behavior and understanding fluid heterogeneity in unconventional shale plays are described. In particular, limited geochemical data from samples taken from the reservoir of interested are utilized to build and tune the EOS model and improve predictions. Real-time applications are also described.

A method for controlling a power transmitting device is a method for detecting a metal foreign object by controlling the power transmitting device including a power transmitting coil that outputs power to a power receiving coil and a thermal sensor that measures a surface temperature of the metal foreign object on the power transmitting coil. The method includes causing the power transmitting coil to output the power before the coils are electromagnetically coupled with each other and a mobile object including the power receiving coil overlaps the power transmitting coil, causing the thermal sensor to measure the surface temperature of the metal foreign object, and transmitting, if the measured surface temperature of the metal foreign object is equal to or higher than a threshold, a signal indicating presence of the metal foreign object to another receiving apparatus, other than the power transmitting device, having a function of receiving the signal.

An identification system and method comprising a beacon unit using a highly collimated source of electromagnetic radiation, which emits towards a thermal imaging unit highly directional radiation. In this manner, improved visual identification of the beacon unit and the carrier associated therewith through the imaging unit can be achieved over both short and long distances. In particular, detection of the beacon unit is aided by emitting highly collimated radiation with high power density at great distances. When detected by the sensor array, an image of the emitted radiation is indeed displayed as a bright spot of light on the display, thus eliciting the attention of a viewer observing a scene through the imaging unit. Blooming of an array of sensing elements provided in the imaging unit may further be fostered by delivering a great amount of power to the imaging unit, thus improving detection of the beacon unit.

A data acquisition program, which includes core, image log, microseismic, DAS, DTS, and pressure data, is described. This program can be used in conjunction with a variety of techniques to accurately monitor and conduct well stimulation.

Disclosed herein is a method for analyzing 2-dimensional geothermal resource data using a web-based 3-dimensional sectional view, to implement an analyzing module performing 3-dimensional section analysis for 2-dimensional geothermal resource spatial data as a program run by data processing devices including a computer. The method for analyzing 2-dimensional geothermal resource data using a web-based 3-dimensional sectional view is configured by the processes of: selecting an analysis target region and generating linear vector data; requesting a section analysis layer of GeoServer for the target region; generating a dynamic query for a section analysis according to the delivered conditions, and executing PostGIS, an open source GIS software; delivering a result of the sectional view analysis executed by PostGIS to OpenLayers, and generating a section analysis results chart to display it on the Web; and displaying the sectional view analysis chart as a pop-up window.

A zonal underground structure detection method based on sun shadow compensation is provided, which belongs to the crossing field of remote sensing technology, physical geography and pattern recognition, and is used to carry out compensation processing after a shadow is detected, to improve the identification rate of zonal underground structure detection and reduce the false alarm rate. The present invention comprises steps of acquiring DEM terrain data of a designated area, acquiring an image shadow position by using DEM, a solar altitude angle and a solar azimuth angle, processing and compensating a shadow area, and detecting a zonal underground structure after the shadow area is corrected. In the present invention, the acquired DEM terrain data is used to detect the shadow in the designated area; and the detected shadow area is processed and compensated, to reduce influence of the shadow area on zonal underground structure detection; finally, the zonal underground structure is detected by using a remote sensing image after shadow compensation, so that the accuracy of zonal underground structure detection is improved and the false alarm rate is reduced compared with zonal underground structure detection using a remote sensing image without shadow compensation processing.

Methods for managing an intelligent field, are provided. An exemplary method can include, for example, the steps of receiving well instrument data, processing the data, detecting a missing or faulty data period, applying a rule set and logics, estimating values for the missing or faulty data, validating the estimated values, and inserting the data in the data period.

A fluid sensor cable assembly and method uses one or more conductive bodies extending along an elongated core body for conducting a heating current to heat the cable assembly. The one or more conductive bodies also are configured to conduct an interrogation signal and to conduct reflections of the interrogation signal. One or more optical fibers extend along the length of the core body and include temperature sensitive elements at different locations along the length of the core body. The temperature sensitive elements measure heat flux out of the cable assembly at the different locations subsequent to heating the cable assembly and communicate the heat flux to a computer acquisition system.

The invention discloses a high-over mature stage out-of-source disperse dissoluble organic matter gas generation quantitative evaluation method. The method comprises the following steps: carrying out quantitative evaluation on residual ineffective carbon obtained through reservoir oil cracking gas generation by selecting rock samples and a single well logging curve; establishing an out-of-source disperse dissoluble organic matter gas generation quantitative evaluation model, and determining ineffective carbon productivity, charging proportion of disperse dissoluble organic matters at each stage and gas generation conversion rate; and carrying out quantitative evaluation on high-over mature stage out-of-source disperse dissoluble organic matter gas generation amount and gas generation stage. The method enriches natural gas exploration geological theory; the high-over mature stage out-of-source disperse dissoluble organic matter gas generation evaluation method is improved; the method is used for determining the high-over mature stage out-of-source disperse dissoluble organic matter gas generation amount and gas generation stage; and the method has many advantages in evaluating the out-of-source disperse dissoluble organic matters on the basis of an ineffective carbon inversion technology method.

A method for the determination of an inflow profile and bottom-hole area parameters (perforation zone parameters, bottom-hole area pollution parameters) in a multipay well comprises changing a production rate and measuring a temperature of a fluid flowing into the well as a function of time for each pay zone. Then a derivative of this temperature with respect to a logarithm of a time passed after the well production rate has been changed for each pay zone is determined. An inflow profile and other parameters are calculated based on a value of said derivative when it becomes constant and on a time after which the value of the derivative becomes constant.

A pop-up monitoring base station for seafloor heat flow includes a recovery unit, a discarding unit and a cable chopping mechanism. The recovery unit includes a recovery support, internally accommodating two acoustic release devices provided with closable hooks on bottoms thereof and loaded with floating balls. The discarding unit includes a discarding support, below which a heat flow probe is fixedly connected. The recovery unit and the discarding unit are fixed together through a steel wire rope with two ends connected with the closable hooks at the bottoms of the acoustic release devices. A cable extends from the discarding unit through the cable chopping mechanism fixed on the bottom of the recovery support and connects with the floating balls. The cable can be chopped off and/or pulled out automatically to realize successful separation between the recovery unit and the discarding unit.

The invention discloses a human body recognition method, apparatus and device based on an infrared sensor. The method comprises the steps of: reading an output level of the infrared sensor in real time; and obtaining an environment temperature, obtaining a temperature compensation value according to the environment temperature and an environment temperature compensation table, subtracting a presetalarm threshold from the temperature compensation value to obtain an effective alarm threshold, judging whether the level is within the range of the effective alarm threshold, and if the outlet levelis not within the range of the effective alarm threshold, judging that a human body invades the measurement range of the infrared sensor. According to the human body recognition method, apparatus anddevice disclosed by the invention, by obtaining the environment temperature and obtaining the temperature compensation value according to the environment temperature and the environment temperature compensation table, intelligent temperature compensation is performed on a sensitivity threshold, thereby improving the anti-interference ability of the infrared sensor to the external environment, andimproving the recognition precision.

A system and method for determining adiabatic stress derivative of temperature for rocks under water. The system includes three pressure vessels disposed in seawater. A data collecting unit is in the first pressure vessel. A rock sample is in a first chamber of the second pressure vessel. A temperature sensor is in each of the center of the rock, the surface of the rock sample, and the first chamber. A pressure sensor is also in the first chamber. Outputs of the temperature sensors and the pressure sensor are communicated with inputs of the data collecting unit. A first drain valve is provided on the second pressure vessel and communicated with the first chamber. A second drain valve is provided between the second pressure vessel and the third pressure vessel, and communicated with the first chamber and the second chamber.

A single-floating-ball seabed-heat-flow long-term observation system comprises a recovery unit and an abandoning unit. The recovery unit comprises a hollow cabin body and a floating body material component arranged around the hollow cabin body. A cross support which is fixedly connected to a hollow cabin body bottom surface is also included. A hollow cabin body bottom is provided with a water tight joint and a top is provided with a transducer. The abandoning unit comprises a horizontal regular polygon sinking support. A position of each corner of the sinking support is fixedly connected to a rectification component. A center position of the sinking support is provided with a cylindrical cabin, a funnel cabin and a needle-shaped cabin from top to bottom. A top of the cylindrical cabin is provided with a through hole. A balancing weight whose center is provided with a through hole and a buffer space are arranged in the cylindrical cabin. The funnel cabin is fixedly connected to a bottom edge of the cylindrical cabin and covers an upper portion of the needle-shaped cabin. A heat-flow detection component with a temperature sensor is arranged in the needle-shaped cabin. The structure of the observation system is reasonable. The abandoning portion and the recovery portion can be smoothly separated by themselves, and equipment can be recycled furthest.

The present invention provides a measuring unit, a kick information identification apparatus and method, and relates to the oil and gas well engineering field. The measuring unit comprises: a throttling device, mounted on a drill stem; sensors, arranged at the two sides of the throttling device, and configured to sense the pressure and/or temperature at the two sides of the throttling device; and a signal transmitter, configured to transmit the pressure and/or temperature values. The present invention employs a throttling device and measures the pressure drop and/or temperature difference across the throttling device, and can identify kick information successfully according to the pressure drop and/or temperature difference. Even in the case of horizontal wells where the flow and pressure variations are not apparent, the present invention can still attain a good kick information identification effect.