110results about "Optical prospecting" patented technology

The invention provides a high-negative-pressure gas extraction drill hole full-life-cycle efficiency evaluation method, and belongs to the technical field of mineral exploitation. A ground stress distribution model is established through microseism monitoring to determine drill hole arrangement parameters; a distributed optical fiber sensing system and a multi-parameter gas flow meter are used for monitoring the stress change around a drill hole and gas extraction data in real time, the coal fracture development degree is obtained in combination with sound wave testing, and all the data are input into a physical numerical value coupling model to calculate a permeability dynamic evolution curve. Establishing a permeability influence coefficient matrix and determining a key parameter weight, constructing an evaluation index system including the extraction amount, the permeability change rate, the drilling life and the coverage range, and performing multi-objective optimization configuration by applying a Pareto optimal solution theory. The technical problem that full-life-cycle dynamic monitoring and comprehensive efficiency evaluation of the high-negative-pressure gas extraction drill hole are lacked at present is solved.

The invention discloses a time-space monitoring method for fracture of an overlying strata mine earthquake key layer in a coal mine, which is characterized in that the DAS technology can realize accurate sensing of underground tiny vibration by measuring the change of sound wave signals in optical fibers, and preliminarily determines the position range of the key layer by analyzing the characteristics of vibration data at the key layer; and meanwhile, high-precision strain data can be provided by utilizing a DSS technology, the position range of the key layer is determined by analyzing the characteristics of the strain data at the key layer, and finally the key layer and the key layer are mutually verified to take an overlapped part and finally accurately position the key layer. After the key layer is positioned, follow-up monitoring is continuously carried out, if new fracture occurs in the key layer, whether the fracture occurs can be judged through vibration data obtained by the DAS host and strain data obtained by the DSS host, the vibration data and the strain data are synchronously subjected to data analysis and judgment and combined analysis, the monitoring precision of the fracture of the key layer is further improved, and the monitoring accuracy of the fracture of the key layer is improved. Therefore, the safety of coal mining is effectively ensured.

Methods, systems, and apparatuses are provided for detecting events in proximity to one or more transmission lines or cables of a data, power, communications, and / or content data transmission system. Data indicating an event may be received. The data may indicate movement or deflection of a portion of the transmission line or cable. A location of the portion of the transmission line or cable may be determine. The location may be determined based on the received data. A classification of the event may be determined. For example, the classification of the event may be based on the data on the received data and the determined location. For example, the classification of the event may be determined by a machine-learning model. A response may be caused. The response may be associated with the portion of the cable. The response may be based on the classification of the event.

A downhole tool system includes a bottom hole assembly that includes a connector; a laser head; a light source; a sensing assembly; and a controller. The connector is configured to couple to a downhole conveyance run into a wellbore to a reservoir rock formation. The laser head is configured to emit a laser beam toward the reservoir rock formation at a fixed frequency. The light source emitter is configured to emit a light beam toward the reservoir rock formation. The sensing assembly includes at least one optical receiver configured to (1) receive a reflected laser beam and a reflected light beam, and (2) interfere the reflected laser beam with the reflected light beam. The controller is configured to perform operations including generating a speckle interferogram based on the interference; and determining an angular displacement and an axial displacement of the wellbore based on the speckle interferogram.

The invention provides a pegmatite type lithium ore prospecting method based on aviation hyperspectral remote sensing. The method comprises the following steps: step 1, inputting hyperspectral reflectivity data; step 2, calculating continuum removal data of a characteristic spectrum section; step 3, calculating a characteristic absorption wavelength position DL of the characteristic spectrum section; step 4, calculating the matching degree of the characteristic spectrum sections; 5, recognizing mineral end members; 6, inputting pegmatite vein distribution information; 7, delineating an abnormal pegmatite vein; and 8, delineating the lithium-containing pegmatite vein. The invention provides a muscovite and spodumene end member identification and lithium-containing pegmatite vein identification method, the fine identification of seven subclasses of muscovite can be realized, the identification of the subclasses in the existing aviation hyperspectral data is the most and finest, and meanwhile, the muscovite and spodumene information can be finely distinguished. Based on spodumene and muscovite information, the lithium-containing pegmatite vein can be rapidly screened from a large number of pegmatite veins, and therefore the prospecting efficiency of pegmatite type lithium ore is improved.

The invention provides a nickel ore target region prediction method and system based on hyperspectral remote sensing data analysis, and relates to the technical field of mineral resource exploration, and the method comprises the steps: firstly obtaining a hyperspectral remote sensing data body of a to-be-predicted region, then carrying out alteration feature space clustering construction processing on the hyperspectral remote sensing data body, forming an alteration feature space cluster body, and carrying out the clustering construction processing on the alteration feature space cluster body; the method comprises the following steps: identifying spatial distribution of various geological alteration types and binding spectral features, then carrying out mineralization alteration combination sequential spatial evolution processing to obtain a mineralization alteration sequential evolution body, then carrying out target area indication feature anchoring shaping construction processing on the mineralization alteration sequential evolution body to form a target area indication space shaping body, and carrying out target area indication feature anchoring shaping construction processing on the target area indication space shaping body. And positioning key indication characteristics of the nickel ore target region, and finally carrying out nickel ore target region space consolidation delineation treatment to generate a nickel ore target region prediction result. According to the method, spectrum and space information of hyperspectral remote sensing data is fully utilized, and the accuracy and reliability of nickel ore target region prediction are effectively improved.

The invention provides an ice and snow product inversion method and device based on a geological resource hyperspectral satellite, and relates to the technical field of remote sensing data processing.The inversion method comprises the steps that remote sensing image data and auxiliary data of a research area are obtained through the geological resource hyperspectral satellite, the remote sensing image data are preprocessed, and the preprocessed remote sensing image data are obtained; obtaining real reflectivity and spectral data of the earth surface; using a multilevel decision tree accumulated snow recognition algorithm to generate an accumulated snow range data product; obtaining a normalized snow index according to the spectral data; inputting the real earth surface reflectivity and the auxiliary data into a preset snow water equivalent inversion model to obtain snow water equivalent data; and inputting the auxiliary data, the normalized snow index and the remote sensing image data into a preset deep belief network to obtain accumulated snow area proportion data. According to the invention, based on the high-frequency observation capability of a geological resource hyperspectral satellite, high-precision ice and snow product inversion is realized under a complex terrain condition through the combination of a satellite remote sensing technology and a machine learning algorithm.

A mining conveyor scanner including a scanning system that comprises a support for supporting the scanning system to scan ore carried by a conveyor. Advantageously, the scanning system safely scans the ore on the conveyor, as it moves in its normal course of operation, without flow interruption. Also, a method for detecting changes in the grade of ore carried by a conveyor in near real time, the method including the steps of: providing a scanning system having at least a hyperspectral imager, a LiDAR or range determination unit and computational resources; scanning the ore with the range determination unit to determine ore position information; scanning the ore with the hyperspectral imager to produce a corresponding ore hyperspectral image; utilising the computational resources to fuse together the ore position information and the corresponding ore hyperspectral image to produce a ore position and content information map of the ore.

The invention provides an improved authigenic mineral U-Pb dating method, and relates to the technical field of oil-gas exploration, and the method comprises the following steps: carrying out diagenetic age petrology analysis on a carbonate reservoir in a research area to prepare a plurality of parallel rock samples; carrying out diagenetic age microscopic mineralogical analysis on the parallel rock samples, and determining the diagenetic period of the carbonate reservoir in the research area; analyzing major elements, trace elements and rare earth elements of the parallel rock samples, determining a high U content area, and determining a diagenesis fluid source of the carbonate reservoir in the research area; and carrying out U-Pb isotope test analysis on the high U content region to obtain the diagenesis absolute age of different minerals or the same mineral of the carbonate reservoir in the research region. According to the method, dynamic quantitative recovery of the carbonate rock reservoir forming-reservoir forming dynamic process is achieved, and the defects that an existing method is low in dating success rate and high in test result multiplicity of solutions are overcome.

The invention discloses a gold ore prospecting and exploration sampling device and method, and relates to the technical field of prospecting and exploration equipment, and the device comprises a main body frame which comprises a sampling vehicle main body and a data processing unit; the sampling area is composed of a multi-joint mechanical arm and a sampling drill bit; the analysis area comprises a sample management assembly, the sample management assembly is integrated in the sampling vehicle main body, and the analysis area is used for automatic identification, storage, preliminary analysis and pretreatment of samples. According to the invention, automatic sampling, intelligent data analysis and adaptive sample treatment are integrated, and closed-loop optimization of the exploration process is realized. According to the method, multi-source geological data are fused through a machine learning model, a sampling strategy is intelligently predicted and optimized, and a sample preprocessing process can be dynamically adjusted to ensure analysis precision, so that the efficiency and accuracy of gold mine exploration are remarkably improved.

An apparatus for analyzing a payload being transported in a load carrying container of a vehicle is disclosed. The apparatus includes a camera disposed to successively capture images of vehicles traversing a field of view of the camera. The apparatus also includes at least one processor in communication with the camera, the at least one processor being operably configured to select at least one image from the successively captured images in response to a likelihood of a vehicle and load carrying container being within the field of view in the at least one image, and image data associated with the least one image meeting a suitability criterion for further processing. The further processing includes causing the at least one processor to process the selected image to identify a payload region of interest within the image and to generate a payload analysis within the identified payload region of interest based the image data associated with the least one image.

A method for determining the volume of a wellbore for hydrocarbon extraction in a subsurface. The method includes at each depth of the wellbore, obtaining image data which characterizes the physical properties of the subsurface, calibrating the image data with mechanical caliper or resistivity measurements, determining a radial distance of the wellbore wall, and determining a cross section image of the wellbore wall. The method includes generating a three-dimensional image of the wellbore wall from the cross section images at each depth of the wellbore, determining a volume of a space between the wellbore wall and the predicted location of an internal casing, and determining the amount of material required to fill the volume.

The utility model discloses a speed control device for guide hole drilling, which relates to the technical field of rock stratum drilling and comprises a fixed frame body, a drilling machine body is arranged in the fixed frame body, a telescopic rotating motor is arranged in the drilling machine body, and a rotating drill bit is arranged at the bottom end of the telescopic rotating motor. The telescopic rotating motor and the rotating drill bit are used for conducting vertical forward hole guiding on the courtyard. Through the fixing frame body, the inserting plate, the connecting block and the gradienter body, the state that the rotary drill bit moves downwards all the time is kept, it can be guaranteed that when the rotary drill bit drills holes, the fixing frame body can protect operators, the rotary drill bit keeps the state of moving downwards all the time, the drilling process can be continuously conducted, and the drilling efficiency is improved. And time waste caused by stagnation or adjustment of the rotary drill bit is reduced. The design of the fixed frame body provides a safe barrier for operators, and the rotary drill bit can be prevented from hurting the operators due to drill bit breakage or rock splashing in the drilling process.

The present invention belongs to the technical field of logging, and discloses an optical fiber multi-parameter logging device, including a trolley. A placement platform is fixedly installed at the top of the trolley. A main control box is arranged at the top of the placement platform. An electric winch is fixedly installed inside the trolley at a position below the placement platform. A logging cable is wound around the outer surface of the electric winch. One end of the trolley is fixedly installed with a telescopic support arm. One end of the telescopic support arm is fixedly installed with a downhole pulley. One end of the downhole pulley is fixedly installed with a depth counter. The outer surface of the logging cable is slidably connected to the outer surface of the downhole pulley. One end of the logging cable is fixedly connected to a logging component, which can automatically realize the height change of the logging component, avoid the need to release the fixation for adjustment when the position of the logging component needs to be finely adjusted, realize more convenient logging operations, greatly improve the accuracy and efficiency of logging, and provide more comprehensive data support for users.

This measurement device (1) comprises an imaging control unit (21) for causing an imaging unit (14) to image a prescribed object of interest in the water and a vibration measurement unit (23) for measuring sound waves in the water by measuring the vibration frequency of the object of interest on the basis of images that were made to be captured by the imaging control unit (21).

The invention belongs to the technical field of building survey, and particularly relates to a rapid survey device for the trend of a hidden inspection well in a community and a use method thereof.The rapid survey device comprises a hollow pipe, one end of the hollow pipe is communicated with a hollow block, the top end of the hollow block is fixedly connected with a connecting rod, and the end, away from the hollow block, of the connecting rod is fixedly connected with a displayer; a connecting line is arranged in the hollow pipe, a connecting disc is fixedly connected to the end, away from the interior of the hollow block, of the connecting line, and a panoramic camera is fixedly connected to the bottom face of the connecting disc; the hollow pipe extends into the bottom of a vehicle, the driving wheels can assist the whole device to move, then the panoramic camera is moved to a lock hole of a well lid, the pay-off assembly can be used for controlling the connecting line to pay off, the panoramic camera enters the inspection well, the panoramic camera can shoot the condition in the inspection well, and the inspection well is convenient to use. And the data is displayed on the display, so that the data of the pipeline direction in the inspection well can be known.

The present application provides a method and device for discriminating shale reservoir types, relating to the technical field of geological exploration and development, including: performing pyrolysis and total organic carbon content analysis on pressure-maintained sealed cores of shale oil reservoirs in the study area, and determining the genetic type of crude oil accumulation corresponding to the shale oil reservoir based on the hydrocarbon generation potential discrimination method; microscopically analyzing and determining the crude oil storage space corresponding to the shale oil reservoir based on the laser confocal method; obtaining the geological data and crude oil storage space corresponding to the shale oil reservoir in the study area, and determining the reservoir type corresponding to the shale oil reservoir according to the geological data; and determining the shale reservoir type based on the reservoir type and crude oil accumulation genetic type corresponding to the shale oil reservoir. By discriminating shale reservoir types mainly based on the differences in shale oil genesis, the present application can reliably reveal the characteristics of shale reservoirs, provide a reliable evaluation basis for subsequent reservoir resource analysis, and improve the effectiveness of subsequent reservoir exploration deployment and development plan selection.

The invention discloses a full-hole-wall digital imaging rock mass fracture intelligent identification and analysis system, which relates to the technical field of rock mass fracture identification, and comprises a rock mass image data acquisition system, a data integration and processing system, a calculation and analysis system, a fracture identification system, a rock mass fracture construction system and an information display system. According to the invention, the accuracy and practicability of full-hole wall digital imaging crack detection and data analysis can be improved.

In some embodiments, a method for controlling a learning machine used in a drilling operation to drill a well into a subsurface formation includes receiving, via a video stream, an image of debris including cuttings from the drilling operation. The method may further include generating a first mask on the image to identify the cuttings in the debris, generating, via instance segmentation, a second mask for each of the identified cuttings, determining, based on the second masks, one or more properties of each of the cuttings, and associating each of the identified cuttings to a depth interval of the subsurface formation based, at least in part, on the properties of each of the identified cuttings and at least one property of the drilling operation.

This invention provides a method and system for predicting nickel ore target areas based on hyperspectral remote sensing data analysis, belonging to the field of mineral resource exploration technology. First, hyperspectral remote sensing data of the area to be predicted is acquired. Then, alteration feature spatial clustering construction processing is performed on the hyperspectral remote sensing data to form alteration feature spatial clusters, identifying the spatial distribution of various geological alteration types and binding spectral features. Subsequently, sequential spatial evolution processing of mineralized alteration combinations is performed to obtain a sequential evolution body of mineralized alteration. Next, target area indicator feature anchoring and shaping construction processing is performed on the sequential evolution body of mineralized alteration to form a target area indicator spatial shaping body, locating key indicator features of the nickel ore target area. Finally, spatial reorganization and delineation processing of the nickel ore target area is carried out to generate the nickel ore target area prediction result. This invention fully utilizes the spectral and spatial information of hyperspectral remote sensing data, effectively improving the accuracy and reliability of nickel ore target area prediction.

A method and apparatus for monitoring hydraulic fracturing during oil / gas well formation wherein a fibre optic cable (102) deployed down a well bore (106), is interrogated toprovide a distributed acoustic sensor. Data is sampled from at least one longitudinalsensing portion of the fibre and processed to provide at least one fracturing characteristic.The fracturing characteristic comprises high frequency transients indicative of fracturing events (606). The intensity, frequency, duration and signal evolution of the transients are monitored to provide the fracturing characteristic.

The application discloses a kind of induction logging instrument systems and acquisition method based on plasma optical fiber sensor, including ground current emission source and at least one well in current emission source and well in receiving acquisition device, the well in receiving acquisition device is connected with the optical system of induction signal detection being arranged on ground, the optical system is composed of sequentially connected broadband light source, polarizer, polarization controller, fiber optic circulator and spectrum analyzer, the fiber optic circulator is connected with well in receiving acquisition device and spectrum analyzer respectively, at least two plasma resonance optical fiber sensing probes are arranged in the well in receiving acquisition device. There is no mutual interference or crosstalk between plasma resonance optical fiber sensor, optical fiber sensor and emission power supply and antenna, and it is not easy to be disturbed by environmental electromagnetic noise, and multi-channel large data high-speed real-time transmission can be realized by using armored photoelectric composite cable connected with each well in receiving acquisition device.

The application discloses a karst landform cave detection method and an underwater robot, and the method comprises the following steps: 1) entering water and initial deployment; 2) non-powered drift navigation; 3) cave observation and data collection; 4) resistance judgment and self-rescue control; 5) continuous drift and path recording; and 6) a three-dimensional cave construction module. The application has the advantages of compact structure, reliable waterproof, high navigation precision, resistance self-rescue capability and three-dimensional modeling post-processing capability, and is suitable for narrow and complex underwater environment detection.

The invention relates to a sulfide ore body detection method and device, prospecting equipment and a computer storage medium, and belongs to the technical field of prospecting. The sulfide ore body detection method comprises the steps that a target to-be-detected area and a comparison detection area used for being compared with the target to-be-detected area are determined; multiple atmospheric optical parameters of the target to-be-detected area and the contrast detection area are collected, and the difference between the multiple atmospheric optical parameters of the target to-be-detected area and the corresponding atmospheric optical parameters in the contrast detection area is determined; and determining the probability that sulfide ore bodies exist in the target to-be-detected area based on the difference. The detection accuracy of the sulfide ore body can be improved.

The utility model relates to the technical field of geological exploration equipment, and discloses a portable geological exploration instrument, which comprises an exploration instrument box body, a protective cover movably mounted on the rear side of the exploration instrument box body, a lock catch movably mounted on the protective cover, a storage groove formed in the protective cover, a carrier plate arranged in the storage groove, a plurality of guide wheels movably mounted on one side of the carrier plate, and a plurality of guide wheels movably mounted on the other side of the carrier plate. Clamping plates are movably mounted at the top and the bottom of the carrier plate, the carrier plate is movably mounted in the storage groove through two connectors, and each connector comprises a mounting shaft and two supporting arms. The containing groove is formed in the protective cover, the carrier plate is movably installed in the containing groove through the two connectors, and the multiple guide wheels and the adjustable pressure wheel are movably installed on one side of the carrier plate, so that a cable of a probe can be conveniently and directly put down into an exploration hole through the three guide wheels; and the carrier plate and the auxiliary structure can be integrally stored in the storage groove, so that the carrying portability and the use convenience of the whole device are improved, and the difficulty of outdoor geological exploration is reduced.

The invention relates to the technical field of intelligent sensing, in particular to a method for measuring an underground water migration path by utilizing a tracer agent, which comprises the following steps: synchronously acquiring two paths of signals according to the action of pump light and probe light on a fluorescein sodium tracer agent in a pore medium, and the returned stimulated light and the local oscillation light subjected to frequency shift by the acousto-optic modulator are interfered to generate an interference beat frequency electric signal. Two different optical signals from the same tracer block mass are synchronously collected and deeply analyzed, multi-dimensional and high-precision representation of the underground water migration process is achieved, returned stimulated emission light is interfered with local light, spectrum analysis is carried out on interference beat frequency signals, and the accuracy of the underground water migration process is improved. The instantaneous flow velocity value reflecting the motion state of the tracer agent block mass can be obtained, the limitation that the flow velocity is calculated by depending on the average time between two points traditionally is avoided, and the real dynamic change rate of the fluid in the complex pore medium can be captured.

The present invention discloses a system for downhole optical imaging. The system includes a housing (208) that forms at least a part of a tool string (112). The system further includes a source (212) disposed within the housing (208), the source (212) emitting light through a window (210) formed in the housing (208). The system also includes an imager (214) disposed within the housing (208), the imager (214) receiving imaging data through the window (210). The system further includes a control system (504) communicatively coupled to the imager (214), the control system (504) using one or more algorithms to process the image data, the one or more algorithms modifying the imaging data at least in part based on a scattering material (218) surrounding the housing (208).

Mining shovel with compositional multispectral and / or hyperspectral imaging and associated methods and systems are disclosed herein. In some embodiments, a mining detection system includes a mining bucket carrying a multispectral and / or hyperspectral imaging system and various sensors directed toward material entering and positioned within the bucket. The bucket can also carry a control enclosure housing image and sensor processing equipment that receives and analyzes the data collected by the multispectral and / or hyperspectral imaging system and the sensors. The disclosed systems and methods can provide real-time compositional analysis of mined materials at the mining site, which can be used to manage a mining field, including generating and transmitting instructions for where the material within the bucket should be delivered based on the data collected from the multispectral and / or hyperspectral imaging system and the sensors.