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38results about How to "Improve exploration effect" patented technology
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Modular underwater robot based on integrated vector propellers
InactiveCN109515651AImprove robustnessFunctionalUnderwater vesselsUnderwater equipmentAttitude controlControl signal
The invention discloses a modular underwater robot based on integrated vector propellers. The integrated vector propellers are distributed on the left and right sides of an underwater robot cabin, sothat multidimensional thrust can be generated to realize navigation attitude and depth measurement and own attitude control; tail fins and dorsal fins are respectively fixed on two sides of the tail and the back of the underwater robot cabin; a power module, a load module and a communication module are arranged in the underwater robot cabin; the power module is used for supplying power to the underwater robot; and the communication module is respectively connected with the load module and the integrated vector propellers and is used for transmitting acquired data of the load module and a ground upper computer and transmitting control signals of the integrated vector propellers and the ground upper computer. The modular underwater robot disclosed by the invention has excellent maneuverability, functionality and intelligence while ensuring the stability of the underwater robot, improves the exploration ability under complex sea conditions, and has wide application prospects.
Owner:XI AN JIAOTONG UNIV
Low gas-oil-ratio oil reservoir gas logging evaluation method
ActiveCN106437691AImprove exploration effectEmbody scienceBorehole/well accessoriesAnalysis dataGas oil ratio
The invention relates to the technical field of oil development oil reservoir engineering, in particular to a low gas-oil-ratio oil reservoir gas logging evaluation method. By adoption of the low gas-oil-ratio oil reservoir gas logging evaluation method, the problems that the interpretation coincidence rate is low, understanding of oil and gas reservoirs is not clear, and oil-water relation analysis is unknown during exploration and development are solved, and the exploration effect is improved. The low gas-oil-ratio oil reservoir gas logging evaluation method comprises the following steps that firstly, oil well data are obtained; secondly, parameter quality is controlled, specifically, a gas logging quality control curve template is established, gas logging data are input into the quality control curve template, and the gas logging data with the quality control ratio being within the range of 0.8-2.0 are selected to serve as analysis data meeting quality requirements; thirdly, parameters are selected, specifically, a relation between the gas logging data and an oil-water-gas layer is discovered through a grey correlation degree analysis method; and fourthly, the parameter research and oil reservoir gas logging evaluation method is established. A two-dimensional linear crossplot-gas logging interpretation chart is established, and different interpretation conclusion ranges are marked out.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Design method of six-spud-in wellbore structure
InactiveCN103711457AImprove exploration capabilitiesImprove drilling speedFluid removalDrilling machines and methodsSurface levelDrill bit
The invention provides a design method of a six-spud-in wellbore structure, and belongs to the field of engineering boring of resources such as petroleum and natural gas. The design method includes the steps of (1), at the surface level, drilling a depth of 30-50 m by a drill bit with the diameter phi ranging from 604 mm to 614 mm, setting a casing with the diameter phi ranging from 503 mm to 513 mm after removing the drill bit, , and pouring cement paste for well cementation; (2), at the first spud in, drilling a depth of 300 m by a drill bit with the diameter phi ranging from 474 mm to 484 mm, setting a casing with the diameter ranging from 401 mm to 411 mm after removing the drill bit,, and pouring cement paste for well cementation; (3), at the second spud in, drilling a depth about 2000 m by a drill bit with the diameter phi ranging from 337 mm to 347 mm, setting a casing with the diameter phi ranging from 293 mm to 303 mm after removing the drill bit, and then pouring cement paste to realize well cementation.
Owner:CHINA PETROLEUM & CHEM CORP +1
Method for correcting influence of non-infinite power supply electrode in time-domain induced polarization three-pole sounding
Provided is a method for correcting the influence of a non-infinite power supply electrode in time-domain induced polarization three-pole sounding. As an infinite power supply electrode for time-domain induced polarization three-pole sounding adopts a non-infinite power supply electrode pattern due to terrain, signal intensity and other causes, there is a need to eliminate the influence of a non-infinite power supply electrode in apparent resistivity and apparent polarizability data of time-domain induced polarization three-pole sounding. Based on the situation, an infinite power supply electrode C is added to measure the influence parameters Rho(B) and Eta(B) of a non-infinite power supply electrode B on the apparent resistivity and apparent polarizability in time-domain induced polarization three-pole sounding data, and the apparent resistivity and apparent polarizability in measured time-domain induced polarization three-pole sounding data are corrected to get data reflecting the actual apparent resistivity and apparent polarizability of a measuring point. Therefore, the data accuracy and exploration effect of time-domain induced polarization three-pole sounding are improved, and the application range of time-domain induced polarization three-pole sounding in complex terrains is widened.
Owner:CENT SOUTH UNIV
Asymmetric electrical method-based sounding method
ActiveCN106646624AReduce workloadImprove exploration efficiencyElectric/magnetic detectionAcoustic wave reradiationElectricityFixation point
An asymmetric electrical method-based sounding method is disclosed. A series of equal interval power supply points that are symmetric about only one fixed point are designed, underground power supply can be realized via two power supply points symmetric about the fixed point through an electrical method exploration transmitter, the electrical method exploration transmitter is used for simultaneously receiving electric field signals of all measurement points on an exploration line, and apparent resistivity and induced polarization parameters of each measurement point are obtained when each pair of symmetric power supply points are used for power supply. Via the method disclosed in the invention, workloads of power supply point arrangement can be greatly reduced, a plurality of sounding points can be subjected to sounding operation via a multichannel electrical method instrument or a plurality of electrical method instruments, and exploration efficiency of a two dimensional or three dimensional electrical method can be improved. In a three dimensional asymmetric electrical method sounding mode, exploration efficiency and exploration effects can be improved due to adoption of the three dimensional electrical method sounding mode.
Owner:CENT SOUTH UNIV
Extra-large basin hydropower station group optimal scheduling method based on hybrid intelligent dimensionality reduction algorithm
ActiveCN108537370AIncrease the direction of evolutionIncrease diversityForecastingGenetic algorithmsPopulationIntelligent algorithms
The invention discloses an extra-large basin hydropower station group optimal scheduling method based on a hybrid intelligent algorithm. Hydropower stations involved in calculation are selected and corresponding constraint conditions are set, an individual serial coding method is adopted to code individuals, and an initial population is generated; the fitness value of each individual is evaluated,an individual extremum is subjected to mutation operation after the individual extremum and a global extremum are updated, the positions of all individuals in the population are then updated, and a hybrid search strategy is then carried out on an individual in an external file set to improve the individual diversity; and finally, the above process is repeated until a terminating condition is met.The optimization performance is excellent, the robustness is strong, the convergence speed is fast, programming for realization is easy, and the problem of curse of dimensionality of the traditionalscheduling algorithm is avoided. Examples of Wujiang basin application show that the method of the invention can effectively improve the individual convergence speed and the population global search ability, a reasonable and effective hydropower station group scheduling operation mode can be acquired quickly, and the overall scheduling benefits of the extra-large basin hydropower station group scheduling are improved.
Owner:HUAZHONG UNIV OF SCI & TECH
Curvelet transform-based denoising method of seismic signals
InactiveCN104730576AHigh-resolutionImprove signal-to-noise ratioSeismic signal processingSignal-to-noise ratio (imaging)Image resolution
The invention relates to a Curvelet transform-based denoising method of seismic signals. According to the method, a wedge model of different wavelet lengths is established, only one lamina is in the wedge model, different wavelet resolution laminas and wedges are different in capacity, a seismic record of low time resolution is used as a matching channel, a seismic record of high time resolution is used as a reference channel, the seismic record, namely the matching channel, and the seismic record doped with white Gaussian noise are matched by means of Curvelet transform matching and filtering and are compared with the seismic record of high reference channel resolution. Actual comparison tests show that by processing the influences of the aspects by the FITSA algorithm, matching results are high in waveform uniformity, noise is well suppressed, and seismic data processing resolution and signal-to-noise ratio are evidently increased; the signal-to-noise ratio is increased, and processing efficiency of the seismic data is greatly improved.
Owner:JILIN UNIV
Induced polarization scanning method for simultaneous power supplying of four power supplying points
InactiveCN108732630AImprove the ability to suppress electromagnetic interferenceImprove efficiencyElectric/magnetic detectionAcoustic wave reradiationElectricityPower flow
The invention provides an induced polarization scanning method for simultaneous power supply of four power supplying points. The method comprises the steps of performing simultaneous power supplying through four power supplying points at different positions by means of an electric method transmitter, wherein the directions of current signals which pass through two power supplying points in a relative direction are same, and the directions of the current signals which pass through two other power supplying points are opposite; acquiring potential information and induced polarization informationof measuring points at different positions in a measuring area by an electric method receiver, acquiring resistivity data of the measuring points at different positions through the coefficient of a normalized device in which four power supplying points perform simultaneous power supplying and a resistivity calculating formula, and realizing an induced polarization scanning operation in which thefour power supplying points perform simultaneous power supplying. The induced polarization scanning method has advantages of reinforcing uniformity of middle partial electric field of the measuring area, increasing electric information acquisition amount in different directions of the whole measuring area, improving electric signal strength, reducing isolated influence of a power source, increasing geological information amount of the measuring points through increasing the measuring points, and improving an induced polarization scanning effect, etc.
Owner:CENT SOUTH UNIV
Cross three-dimensional electrical prospecting method
ActiveCN106772620AEasy to changeLower Exploration CostsElectric/magnetic detectionAcoustic wave reradiationMeasurement pointEngineering
The invention discloses a cross three-dimensional electrical prospecting method. According to the method, cross three-dimensional electrical prospecting power supply terminals are arranged based on prospecting target body characteristics and topography and landform fluctuation characteristics of an electrical prospecting area, an electrical prospecting transmitter supplies power to underground through electrodes of the power supply terminals, an electrical prospecting receiver simultaneously receives electric field signals of the power supply terminals, and apparent resistivity and induced polarization parameters of measurement points are calculated when each cross power supply terminal supplies power, so that cross three-dimensional electrical prospecting is achieved. The cross three-dimensional electrical prospecting method can overcome the shortcomings of poor two-dimensional electrical prospecting effect and low conventional three-dimensional electrical prospecting efficiency and inherits the advantages of high two-dimensional electrical prospecting efficiency and good conventional three-dimensional electrical prospecting effect, and a better balance point is found between the prospecting efficiency and the prospecting effect.
Owner:CENT SOUTH UNIV
Two-dimensional electrical prospecting method based on joint profile
InactiveCN110208868AImprove exploration effectHigh precisionElectric/magnetic detectionAcoustic wave reradiationEngineeringWorkload
The invention provides a two-dimensional electrical prospecting method based on joint profile. The method provided by the invention obtains electrical data such as resistivity and polarizability in two directions of all recording points of a certain measuring line based on the joint profile method in the electrical prospection, separately performs overall treatment such as the absolute value of anaverage value and a difference on the electrical data such as resistivity and polarizability with the same recording point and the same pole pitch in two directions, mainly selects the maximum valueof the absolute value of the difference of the relevant electrical parameters to determine the abnormal width of the abnormal body, and carries out comprehensive interpretation, so as to improve the exploration effect of the joint section method without increasing the workload in the field. The method can improve the electrical prospecting effect and precision of the joint section method and increase the recognition degree of the geological anomaly body.
Owner:CENT SOUTH UNIV
An iterative learning control method based on an equilibrium single evolution cuckoo algorithm
PendingCN109635915AEffectively balance global search capabilitiesEffectively balance local optimization capabilitiesArtificial lifeAlgorithmHysteresis phenomenon
The invention relates to an iterative learning control method based on a balanced single evolution cuckoo algorithm. a novel equilibrium single evolution evaluation strategy is given; each generationof evolution only randomly updates the single dimension of the target function; the dimensionality of random updating obeys integer uniform distribution; combining with other dimensions to form a newcandidate solution; evaluating the candidate solution, if the candidate solution is superior to the fitness value of the previous generation of function, keeping the updated candidate solution and continuing to evolve until an algorithm stop condition is met, and only receiving an update value capable of improving the current candidate solution by adopting a greedy rule, so that the targeted adjustment of a search direction in an optimization process is ensured, and the efficiency is not influenced. According to the method, the global search capability and the local optimization capability ofthe cuckoo algorithm can be effectively balanced, the hysteresis phenomenon appearing at the end of execution of the optimization algorithm is avoided, and therefore the global search speed and the convergence precision of the algorithm are improved.
Owner:HUAQIAO UNIVERSITY
Cultural genetic algorithm-based resident medium-and-long-term power consumption prediction method
InactiveCN109615139AImprove performanceHigh speedForecastingGenetic algorithmsElectricityLoad forecasting
The invention discloses a cultural genetic algorithm-based resident medium-and-long-term power consumption prediction method, which is specifically implemented according to the following steps of: step 1, selecting a data sample: counting a plurality of related data in a certain region within a certain period of time, and taking the data as an influence factor; step 2, data preprocessing: carryingout data cleaning on the data selected in the step 1; step 3, determining a resident medium and long-term electricity consumption prediction model: establishing a multivariate linear regression model-based medium and long-term load prediction model, and taking the data obtained in the step 2 as a training sample to obtain an influence coefficient of a data sample so as to obtain the medium and long-term resident electricity consumption prediction model; and step 4, parameter optimization based on a cultural genetic algorithm: optimizing the parameters in the medium-and-long-term residential electricity consumption prediction model obtained in the step 3 by using the cultural genetic algorithm, obtaining the optimized parameters through the cultural genetic algorithm, and constructing a residential medium-and-long-term electricity consumption prediction model for prediction.
Owner:XIAN UNIV OF TECH
Induced polarization sweeping method with multiple power supply points realizing simultaneous power supply
InactiveCN108845362AReduced shieldingReduce isolated effectsElectric/magnetic detectionAcoustic wave reradiationHigh signal intensityMeasurement point
The invention provides an induced polarization (IP) sweeping method with multiple power supply points realizing simultaneous power supply. According to the method, an electric transmitter is utilizedto simultaneously supply power at more than three power supply points at different positions, an electric receiver is utilized to obtain the potential information and the IP information of the measurement points at the different positions in the measurement area, resistivity data of the measurement points at the different positions are obtained through a normalization device coefficient and a resistivity calculation formula of the multiple power supply points realizing simultaneous power supply, and IP sweeping operation of the multiple power supply points realizing simultaneous power supply is achieved. The method is advantaged in that the method helps to expand the horizontal and vertical range of the horizontal electric field, improve signal intensity, expand the IP sweeping range, reduce isolation influence of a power source and increase the amount of geological information of the measuring points of a measuring electrode, and thereby improvement of the IP sweeping effect and sweeping efficiency is achieved.
Owner:CENT SOUTH UNIV
Frequency domain natural electric field annular three-dimensional exploration method for identifying underground fluid flow direction
InactiveCN108919361AImprove judgment accuracyHigh precisionElectric/magnetic detectionAcoustic wave reradiationMultiple frequencyStochastic variation
The invention provides a frequency domain natural electric field annular three-dimensional exploration method for identifying the underground fluid flow direction. According to the method, one devicefor measuring a natural electric field is adopted to collect natural electric field frequency domain signals of a known geological point, another device for measuring the natural electric field is adopted at other measuring points to collect natural electric field frequency domain signals of multiple frequencies in multiple directions on the measuring points in an annular mode, the natural electric field frequency domain signals of the other measuring points and the known geological point with the same time and frequency are selected to be subjected to ratio conversion to obtain an annular three-dimensional exploration result, and thus the purposes of eliminating random changes and interferences of the natural electric field signals, improving the exploration effect and identifying the underground fluid flow direction are achieved.
Owner:CENT SOUTH UNIV
Method for correcting diurnal variation of natural electric field
InactiveCN110018521AImprove work efficiencyLower Exploration CostsElectric/magnetic detectionAcoustic wave reradiationAcquisition timeData quality
The invention provides a method for correcting diurnal variation of a natural electric field. As for the method, natural electric field measuring equipment is adopted to collect natural electric fieldsignals of a known geological point at a certain time interval, according to the natural electric field acquisition time, frequency and other parameters, a formula is adopted to correct natural electric field data of other measuring points, wherein the formula is F<n>(f)=(U<n>(T<n>,f)-U<0>(T<n>,f)*L<0> / U<0>(T<n>,f) / L<n>, thus the random change and interference of the natural electric field signals are eliminated, the geological conditions of the measuring area is more truly reflected, the quality of the natural electric field data in the whole measuring area is improved, and the exploration effect is improved.
Owner:CENT SOUTH UNIV
Active source electrical prospecting method based on passive source electric field signal measurement
InactiveCN110907999AImprove exploration efficiencyLower Exploration CostsElectric/magnetic detectionAcoustic wave reradiationEngineeringAcoustics
The invention discloses an active source electrical prospecting method based on passive source electric field signal measurement. According to the method, by observing the characteristics of a passivesource electric field signal in an exploration area, such as the frequency, the intensity, etc., the weak frequency of the passive source electric field signal is selected to send an active source signal, and a receiver receives an electric field signal transmitted by the active source signal through the underground, so that the electric field data with higher quality is obtained, and the electrical prospecting with a better exploration effect is realized. The method has the characteristics of high data quality, high signal-to-noise ratio, good exploration effect and the like, and can indirectly improve the exploration efficiency and reduce the exploration cost.
Owner:CENT SOUTH UNIV
Three-dimensional modeling method of hyperspectral information of deep rock and mineral
ActiveCN110702632AMineral model information richOverall accurateMaterial analysis by optical meansWater resource assessmentVisualizationVariogram
The invention belongs to the field of earth science and technology, and particularly relates to a three-dimensional modeling method of hyperspectral information of deep rock and mineral. The method specifically includes the following steps: step one, hyperspectral measurement of a drilling core; step two, standardization of spectral data; step three, parameter calculation of a spectral measurementfunction; step five, importing of a three-dimensional geological modeling environment; step six, establishment of a three-dimensional geological grid model; step seven, construction of a three-dimensional variogram model; step eight, Kriging three-dimensional spatial interpolation; and step nine, three-dimensional visualization. The method uses the advantage of fine and quantifiable rock and mineral information identification of hyperspectral technology of the drilling core, simulates a development degree of the deep rock and mineral in a semi-quantitative manner through the spectral measurement function, the three-dimensional variogram and the Kriging three-dimensional spatial interpolation on the basis of hyperspectral data which is of the drilling core and is obtained by a hyperspectral meter, and has the advantages of high modeling efficiency, fine model characterization, quantification and the like.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
Deeply-buried steeply-inclined ore body exploration method
PendingCN114325867AHigh degree of mineralization enrichmentHigh degree of controlWithdrawing sample devicesGeological measurementsMetallogenyMagma
The invention discloses a deeply-buried steeply-inclined ore body exploration method, which mainly comprises the following steps of: determining a regional structure background of a large deeply-buried steeply-inclined ore body deposit and structure evolution of a region where the large deeply-buried steeply-inclined ore body deposit is located, and re-determining a magmatic rock type and an invasion sequence of the deposit of the type, the method comprises the following steps: determining ore-bearing rock masses and formation times of a large-scale deeply-buried steeply-inclined ore deposit, clarifying the properties of metallogenic magmatic rocks, magmatic origin and evolution and a restrictive relationship to formation of the deposit, performing staging exploration according to mining elevations, determining mine stoping sequence elevations according to a mine stoping sequence, performing exploration in each stoping elevation, and performing exploration net degree research, so as to achieve the purpose of exploring the ore-bearing rock masses of the large-scale deeply-buried steeply-inclined ore deposit and the formation time of the ore-bearing rock masses of the large-scale deeply-buried steeply-inclined ore deposit. And determining the exploration type of the engineering interval of new mining area exploration according to the result of the previous steps. According to the design and construction of the exploration and mining combined project, the mine construction process is accelerated.
Owner:ANHUI TONGGUAN (LUJIANG) MINING CO LTD
A Method of IP Scanning with 4 Power Supply Points Powering Simultaneously
InactiveCN108732630BImprove the ability to suppress electromagnetic interferenceImprove efficiencyElectric/magnetic detectionAcoustic wave reradiationElectricityPower flow
Owner:CENT SOUTH UNIV
Optimal scheduling method for hydropower station groups in super-large river basins based on hybrid intelligent dimensionality reduction algorithm
ActiveCN108537370BIncrease the direction of evolutionIncrease diversityForecastingGenetic algorithmsDrainage basinHydropower
The invention discloses a hybrid intelligent algorithm-based optimal scheduling method for hydropower station groups in super-large watersheds. The hydropower stations participating in the calculation are selected and corresponding constraint conditions are set, individuals are encoded by an individual serial coding method, and initial populations are generated; the fitness value of each individual is evaluated. , after updating the individual extremum and the global extremum, the mutation operation is performed on the individual extremum, and then the positions of all individuals in the population are updated, and then a mixed search strategy is performed on the individuals in the external archive set to increase the diversity of individuals; finally, the above process is repeated until satisfying Termination condition. The invention has superior optimization performance, strong robustness, fast convergence speed, easy programming and realization, and avoids the curse of dimensionality problem of traditional dispatching algorithms. The application examples in the Wujiang River Basin show that the method of the invention effectively improves the individual convergence speed and the global search ability of the population, can quickly obtain a reasonable and effective hydropower station group dispatching operation mode, and improves the overall dispatching efficiency of the hydropower station group dispatching in the super large river basin.
Owner:HUAZHONG UNIV OF SCI & TECH
Coil vibration reduction pod device capable of being rapidly disassembled and assembled for aviation large-size magnetic sensor
ActiveCN113606282AImprove low sensitivityImprove performanceAircraft componentsNon-rotating vibration suppressionAviationNylon material
The invention relates to a coil vibration reduction pod device capable of being rapidly disassembled and assembled for an aviation large-size magnetic sensor. A vibration reduction pod comprises multiple straight pipes, multiple bent pipes, a rope positioning protection ring and screws, wherein the straight pipes and the bent pipes are alternately connected in series to form an overall polygonal pod structure; the rope positioning protection ring is arranged on the bent pipes, is of an annular structure, is provided with an annular groove, is used for fixing a hanging cable and is made of a nylon material; the vibration reduction pod is of a sectional type detachable sleeve pipe structure, two ends of each straight pipe and two ends of each bent pipe are provided with sleeving structures, and the caliber of the tail end of the left side of the straight pipe is larger than that of the right side of the bent pipe, so that the tail end of the right side of the bent pipe can be embedded into the tail end of the left side of the bent pipe, the caliber of the left side of the bent pipe is larger than that of the tail end of the right side of the straight pipe, so that the tail end of the right side of the straight pipe can be embedded into the tail end of the left side of the bent pipe, and rivet holes and built-in thread fastening aluminum strips are reserved at the tail ends of the left side and the right side of the straight pipe and the tail ends of the left side and the right side of the bent pipe; and a plurality of straight pipes and bent pipes are assembled into the complete polygonal magnetic sensor coil pod device.
Owner:AEROSPACE INFORMATION RES INST CAS
Amplitude orientation derivative-based reservoir fracture distribution characteristic determination method and system
PendingCN113075727AImprove accuracyImprove exploration effectSeismic signal processingClassical mechanicsGeophysics
The invention provides an amplitude orientation derivative-based reservoir fracture distribution characteristic determination method and system. The method comprises the following steps: obtaining the amplitude orientation derivative of a reservoir fracture target stratum event according to three-dimensional seismic data; according to the amplitude orientation derivative, constructing an inversion model and obtaining a quasi-anisotropy parameter, and converting the quasi-anisotropy parameter into a reservoir fracture parameter; and extracting the slice along the layer and the section of the reservoir fracture parameter to analyze the reservoir fracture distribution characteristic. The method can improve the prediction precision of the reservoir fracture distribution characteristic.
Owner:PETROCHINA CO LTD
Asymmetric electrical sounding method
ActiveCN106646624BReduce workloadImprove exploration efficiencyElectric/magnetic detectionAcoustic wave reradiationElectricityFixation point
Owner:CENT SOUTH UNIV
A detection device based on an underwater low-frequency electric field and an underwater detection and positioning method
ActiveCN111123368BReal-time acquisitionGet location quickly and accuratelyWater resource assessmentElectric/magnetic detectionBevel gearElectric field
The invention discloses a detection device based on an underwater low-frequency electric field and an underwater detection positioning method. The device comprises a bearing device, a driving cabin body and a control cabin body. A generating electrode and a plurality of receiving electrodes are arranged below a bearing device. A structure that a plurality of sliding grooves are formed in the samecircumference of the transmission bevel gear in a circumferential array manner is utilized. A transmission lead screw is arranged in the sliding groove. A driven bevel gear is fixed at one end of thetransmission lead screw. The driven bevel gear is meshed with the transmission bevel gear. The transmission lead screw is sleeved with a receiving electrode fixing sliding block. The distances from the receiving electrodes to the generating electrodes are equal. A one-to-many array electrode arrangement form is adopted. Real-time acquisition of electric field signals in all directions in a detection area is realized by means of a generating electrode and a plurality of receiving electrodes which are arranged at the central position. Compared with the arrangement form of a single sensor, the electric field signals acquired are more accurate, the acquisition efficiency of the signals is remarkably improved, and the position of the target object between the generation electrode and the plurality of receiving electrodes can be rapidly and accurately acquired.
Owner:XI AN JIAOTONG UNIV
An Active Source Electrical Prospecting Method Based on Passive Source Electric Field Signal Measurement
InactiveCN110907999BImprove exploration efficiencyLower Exploration CostsElectric/magnetic detectionAcoustic wave reradiationAcousticsSignal-to-noise ratio
Owner:CENT SOUTH UNIV
Electromagnetic exploration method and device
ActiveCN114200526ASmall volume effectReduce complexityWater resource assessmentElectric/magnetic detectionClassical mechanicsWave field
The invention discloses an electromagnetic exploration method and device, and belongs to the technical field of geophysical exploration. The method comprises the following steps: acquiring a wave field electromotive force set corresponding to each measuring point; determining the distance between each measuring point and the imaging point; determining the wave field value of each measuring point at the imaging point according to the distance between each measuring point and the imaging point and the wave field electromotive force set of each measuring point; superposing the wave field values of the measuring points at the imaging points to obtain a total wave field value of the imaging points; and performing electromagnetic exploration according to the total wave field value of the imaging points. The method is designed based on the characteristic that the underground propagation speed of the electromagnetic waves is far lower than the light speed instead of the traditional apparent resistivity concept, equation transformation is not needed, the total wave field value of each imaging point can be calculated through wave field value superposition, the complexity of the measurement process is reduced, and the measurement accuracy is improved. And the volume effect of an electromagnetic method can be effectively reduced, and the exploration effect is improved.
Owner:PETROCHINA CO LTD
A Method of IP Scanning with Simultaneous Power Supply at Multiple Power Supply Points
InactiveCN108845361BImprove the ability to suppress electromagnetic interferenceImprove efficiencyElectric/magnetic detectionAcoustic wave reradiationElectricityMeasurement point
Owner:CENT SOUTH UNIV
A Method of Correcting the Influence of Non-infinity Power Supply Electrodes for IP Tripole Sounding in Time Domain
Owner:CENT SOUTH UNIV
Deep sea single towed body electrical detection device and control method thereof
InactiveCN109581514AEasy to deployEasy to recycleWater resource assessmentElectric/magnetic detectionMeasurement deviceData acquisition
The invention provides a deep sea single towed body electrical detection device and a control method thereof. The deep sea single towed body electrical detection device comprises a single towed body structure, a mounting frame, a radial shielding detection measurement device, a counterweight, a towing bearing head and internal elements, wherein the mounting frame and the radial shielding detectionmeasurement device are installed in the single towed body structure; the mounting frame and the radial shielding detection measurement device are separately positioned at two ends of the single towedbody structure; the counterweight is connected with the mounting frame; the internal elements are installed in the mounting frame; and the towing bearing head is arranged at the end, on which the mounting frame is installed, of the single towed body structure. The deep sea single towed body electrical detection device is convenient to arrange and recycle; dragging is carried out near the bottom,and no risk of cable stranding exists; and the influence of towed body posture is reduced, and the quality of data acquisition is improved.
Owner:湖南普力海洋科技有限公司
A drilling machine for engineering supervision
ActiveCN110258494BTo achieve the purpose of explorationHigh precisionIn situ soil foundationReciprocating motionElectrical connection
The invention discloses a rod sounding machine for engineering supervision, which relates to the technical field of building exploration equipment. The rod sounding machine includes a rack, a lifting mechanism, and a ramming rod mechanism, wherein the lifting mechanism and the ramming rod mechanism are respectively arranged on the rack, the lifting mechanism is connected with a rammer, the rod sounding mechanism includes a drilling rod, a ramming part fixedly arranged on the drilling rod, a limit piece fixedly connected with the drilling rod and a vertical guide rail fixedly arranged on the rack, the ramming part is slidably arranged on the vertical guide rail in the length direction of the vertical guide rail, the rammer reciprocates between the limit piece and the ramming part through a lifting mechanism, an actuating switch is arranged on the limit piece and electrically connected with the lifting mechanism, the ramming part is provided with a pressure sensor, and the pressure sensor is electrically connected with the lifting mechanism. According to the rod sounding machine, the accuracy of test data and the construction quality are improved.
Owner:浙江中奇工程项目管理有限公司
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