119 results about "Fracture type" patented technology

The invention provides a method for constructing a fracture recognition model and application. The method comprises: step A, acquiring X-ray images of different fracture types of different fracture parts; step B, carrying out image preprocessing on the X-ray images of different fracture types of different fracture parts; step C, carrying out image feature extraction on the preprocessed images; step D, generating a candidate region according to the image features; step F, carrying out fracture type target detection and region localization on the candidate region; step G, according to a facturetype target detection score, carrying out difficult sample mining to obtain negative samples for training; step K, expanding positive samples for training based on an adversarial learning strategy; and step H, training is carried out by using the positive samples and the negative samples so as to obtain all fracture recognition models for different fracture parts. Therefore, the fracture type andthe regional position can be predicted accurately by using the model, so that the diagnosis time of the doctor is reduced substantially and the missed diagnosis and misdiagnosis rates are reduced.

Fracture- and stress-induced sonic anisotropy is distinguished using a combination of image and sonic logs. Borehole image and sonic logs are acquired via known techniques. Analysis of sonic data from monopole P- and S-waves, monopole Stoneley and cross-dipole shear sonic data in an anisotropic formation are used to estimate at least one compressional and two shear moduli, and the dipole fast shear direction. Fracture analysis of image logs enables determination of fracture types and geometrical properties. Geological and geomechanical analysis from image logs provide a priori discrimination of natural fractures and stress-induced fractures. A forward quantitative model of natural fracture- and stress-induced sonic anisotropy based on the knowledge of fracture properties interpreted from image logs allows the computation of the fast-shear azimuth and the difference in slowness between the fast- and slow-shear. The misfit between predicted and observed sonic measurements (i.e. fast-shear azimuth and slownesses) is then optimized in order to discriminate depth zones with an elastic medium as being influenced by the presence of open natural fractures, closed natural fractures and fractures induced by non-equal principal stress effects.

The invention discloses a method for detecting a shear-wave splitting fracture in geophysical prospecting operation for petroleum. The method comprises the following steps of: acquiring azimuth angle gather data volumes; determining fracture development situation, and overlapping azimuth angle gather data at different angles to form a plurality of overlapped data volumes; determining an overlapped data volume as a reference azimuth data volume according to unknown work area construction and fracture characteristics; performing time difference operation on the reference azimuth data volume and other overlapped data volumes, and thus obtaining the time difference of an event; and calculating and defining other azimuth angles, extracting time difference gather data volumes, determining maximum time difference, and detecting fracture development azimuth and density. A shear-wave splitting prediction fracture theory is applied to practice, a method for quantitatively describing a fracture type reservoir is provided, and the prediction accuracy of the fracture type reservoir is improved.

The invention relates to a method for carrying out profile control on a fracture-type oil reservoir, which comprises the following steps of injecting 0.1 to 0.3 percent of zwitterionic polymer solution into an oil layer; suspending and carrying expansion-retarding 0.2 to 1.0 percent of salt-resistance high-intensity water-absorbent resin particles by a zwitterionic gel profile control agent and injecting the obtained product into a fracture of the oil layer; injecting 30 to 50m<3> of acrylamide gel; suspending 0.2 to 0.5 percent of water insoluble solid particles by the zwitterionic gel profile control agent and injecting the obtained product into the fracture; and alternately injecting 1,000m<3> of partially hydrolyzed polyacrylamide solution with a molecular weight of 15 million, degree of hydrolysis of 10 to 20 percent and 1,000m<3> of petroleum sulfonate surfactant solution, wherein the concentration of the hydrolyzed polyacrylamide solution is 0.05 to 0.15 percent and the concentration of the petroleum sulfonate surfactant solution is 0.2 to 0.5. According to the method, profile control and flooding effects of the fracture-type oil reservoir can be improved; water content of a fracture main direction oil well is reduced; and yield of crude oil of a fracture side direction oil well is increased.

The invention relates to a geomechanics based design method for a deflecting azimuth of a fracture type stratal directional well. The method comprises the following steps: determining a directional well implementation purpose layer and obtaining the natural fracture occurrence, the permeability, the porosity, rock mechanics parameters and ground stress data of a reservoir through field data and an indoor experiment; drawing a hydraulic fracture and natural fracture communication capacity chart to determine a directional well deflecting azimuth range psi1 meeting the requirement of an optimal fracture communication degree; drawing a deflecting azimuth and shaft discharge capacity relationship chart to determine a directional well deflecting azimuth range psi2 meeting the requirement of the maximum discharge capacity; drawing a deflecting azimuth and shaft stability relationship chart to determine a directional well deflecting azimuth range psi3 meeting the requirement of the drilling borehole wall stability; and considering common influence of three factors of the fracture communication capacity, the shaft discharge capacity and the borehole stability to determine an optimal directional well deflecting azimuth range {psi1 n psi2 n psi3}. The design method has the comprehensive benefits of simplicity for operation, easiness for popularization, capability of ensuring the safety of a drilling shaft, high transform degree and high mining yield.

The embodiment of the invention provides a nonequivalent modeling method and a device for a heterogeneous reservoir stratum. The nonequivalent modeling method comprises the following steps: selecting a field outcrop of the heterogeneous reservoir stratum and analyzing the field outcrop to obtain an internal structure of the heterogeneous reservoir stratum; collecting imaging logging data, carrying out statistic analysis on the imaging logging data, dividing the heterogeneous reservoir stratum into a cave type, a fracture type and a fracture-cave type; and collecting conventional logging data and determining elastic parameters of a fracture-cave body in different positions according to the logging data so as to form a nonequivalent model of the heterogeneous reservoir stratum. According to the nonequivalent modeling method and the device disclosed by the invention, by analyzing the imaging logging data, the trend and distribution characteristics of fracture and caves of a carbonatite heterogeneous reservoir stratum are researched in microcosm and the guarantee can be provided for finely engraving the fracture-cave body; and according to the statistical analysis of the logging data, all elastic parameters of the fracture-cave reservoir stratum are accurately positioned.

The invention belongs to the technical field of oilfield development, and provides a well pattern spacing method of a triangular horizontal well. The well pattern spacing method has the advantages that 1, the methods of oil reservoir engineering, numerical simulation and mine statistics are comprehensively utilized, and technical indexes and economic indexes are simultaneously considered; 2, the capacity of large-scale volume fracturing is realized, and the output of single well is greatly improved; 3, the geology and technology are integrated; the different reservoir features and a targeted modification technology are sufficiently considered in the well pattern optimizing process, and the requirements of long-time stable water injection and energy supplementing can be simultaneously met; the purposes of effectively injecting water and supplementing energy can be realized under the condition of large-scale volume fracturing, an effective displacement fracturing system is established, the risk of fracture type water flooding is decreased, and the preliminary gradually-decreased horizontal well spacing type is reduced.

The present invention discloses a bone image processing method, an electronic device and a computer readable storage medium. The method includes the following steps: splitting a bone image, and acquiring a bone part in the bone image as a label image; inputting the label image into a fused neural network to obtain a fused output result, wherein the fused neural network includes a classification neural network and a detection neural network; and outputting the fused output result, wherein the fused output result includes the fracture location and fracture probability of the bone image. A doctorcan know the possible location of the fracture in the bone image according to the fused output result including the fracture type, location and probability of the bone image without full-coverage untargeted examination of the bone image, so the manual workload of the fracture detection is greatly reduced, and the rate of missed diagnosis is also greatly reduced.

The invention discloses a visual fracture type rock plate acid liquor etching experimental device and method. The experimental device comprises a visualization experiment unit, an acid supply unit, a pressure supply unit and a waste liquor collecting unit, the visualization experiment unit comprises a protection frame, a visualization rock plate cover, a visualization rubber sleeve, a sealing cover, a liquor inlet end opening and a liquor outlet end opening, the protection frame comprises a top plate, a bottom plate and two side plates arranged at the two ends of the top plate and the two ends of the bottom plate, the two side plates are provided with first mounting openings respectively, and a first water inlet is formed in the top plate. The visualization rock plate cover is inserted into the protection frame, a second water inlet is formed in the top of the visualization rock plate cover, the visualization rubber sleeve is inserted into the visualization rock plate cover, and annular space is reserved between the visualization rubber sleeve and the visualization rock plate cover. Sealing covers are arranged on first mounting openings in the two ends of the protection frame and seal the annular space. The acid supply unit is connected with a liquor inlet of the liquor inlet end opening, the pressure supply unit is connected with a second water inlet, and the waste liquor collecting unit is connected with a liquor outlet of the liquor outlet end opening.

The invention discloses an orthopedics preoperative planning-oriented implant feature parameter editing method. The orthopedics preoperative planning-oriented implant feature parameter editing methodincludes the following steps: a first step, constructing an implant feature model library, and classifying implants according to fracture information and implant feature parameters; a second step, selecting an implant model from the implant feature model library according to three-dimensional morphological parameters and the fracture type of a patient; and a third step: adjusting the feature parameters of the selected implant model to meet the stress requirements of the individual patient. The invention can design an implant meeting the anatomical features and conditions of the individual patient for the individual patient, and is fast and efficient; and the designed implant can match the individual patient well, and a series of postoperative complications such as the restoration loss after fixation, the non-union of the fracture or malunion healing can be reduced.

The invention provides a synchronous prediction method for horizontal fractures and vertical fractures of an orthogonal medium fracture type reservoir. The method comprises steps of firstly, expressing an orthotropic disturbance matrix by utilizing longitudinal and transverse wave moduli and fracture weakness; secondly, deriving an orthogonal medium linearized longitudinal wave reflection coefficient equation represented by longitudinal and transverse wave moduli, density and crack weakness by utilizing a scattering function and a disturbance matrix; and lastly, expressing the linearized longitudinal wave reflection coefficient as a Fourier series expression, and establishing a three-step inversion method to estimate longitudinal and transverse wave moduli, density and fracture weakness, and thereby realizing multi-parameter inversion of the orthotropic medium. The method is advantaged in that on the basis of a Scheenberg linear sliding model, that crack weakness with more definite physical significance is directly used for representing the development conditions of horizontal cracks and vertical cracks in an orthogonal medium is proposed; an orthogonal medium longitudinal wave reflection coefficient equation is expressed as a Fourier series form, and crosstalk influence of crack weakness caused by horizontal cracks and crack weakness caused by vertical cracks is reduced.

The invention relates to an environment friendly outdoor AC high voltage full-sealed combined electric apparatus which uses environmental friendly gases to replace the gas of SF6 for solving the problem of a poisonous low fluorin compound generated by the gas of SF6 used for arc extinguishing. A double-fracture type vacuum arc extinguishing chamber is adopted for arc extinguishing; a compound insulating bushing is arranged at the two sides of the arc extinguishing chamber; a three-power position isolating switch is arranged in the lower surface; the lower part of the bushing is sheathed with an electromagnetic mutual inductor or a photoelectric mutual inductor; high pure nitrogen is filled in the bushing and a tank body for internal isolation; the high pure nitrogen is adopted between the vacuum arc extinguishing chamber and the tank body for internal isolation; the fracture of each double-fracture type vacuum arc extinguishing chamber is provided with an equalizing capacitor; the three-power position isolating switch adopts the high pure nitrogen as the internal isolation, thus shortening the mounting time and improving the reliability and safety of the device. The environment pollution is avoided in particular as the gas of SF6 is not used.

The invention is a modular composite shoulder prosthesis 64, whose construct incorporates a solid autogenous bone graft 50 to be used to replace the upper humerus in certain fracture types. The prosthesis comprises a stem 22 to be inserted in the canal of the humerus, an intermediary part reduced to a medial pillar 24 and a head which is a generally spherical cap 20 that is hollow. The head of the prosthesis being hollow and coated with an osteoconductive material, the lateral aspect of the medial pillar as well as the upper part of the stem being also coated with the same material, an epiphyso-metaphyseal space is delineated in which a solid autogenous bone graft is fitted. Union can be achieved between the coated parts of the prosthesis, the bone graft 50 and the tuberosities reattached to the humerus shaft, secured to holes 62 of the medial pillar and between themselves.

The invention relates to a rock core-based fracture continuous-characterization method. The measurement accuracy is determined based on actually measured key parameters such as central depth, length, opening degree and filling degree of a rock core fracture as well as a filling material, an angle of inclination and a rock core diameter; a fracture development degree calculation method based on a unit rock core length and related parameters is designed, so that continuous and quantitative characterization can be carried out on fracture development degree, the calculation accuracy of rock core fracture density and a surface fracture rate is improved, and reliable data information guarantee is provided for fracture quantitative prediction. According to the method, the actually measured parameters of the rock core fracture are combined with actual characterization accuracy, so that the distribution situation and concentration degree of the fracture can be continuously represented along a vertical direction, so that the actual demands of exploration and development of oil and gas, especially, fracture type and unconventional exploration and development of the oil and the gas can be met.

The invention discloses a sunken mine high-flow and high-flow-rate pipe fracture type karst gushing water blockage method. The method comprises the following steps: multiple non-continuous grouting curtains are constructed in a low-resistance rich water area; a flow control pulp stop pad is arranged in a water gushing port of a karst pipe for controlling the flow of a water outlet through a drainage pipe with a valve; the porous segmented united grouting is adopted; multiple holes are segmented to high-connectivity drilling holes of different non-continuous curtains; and the united grouting is synchronous grouting of near-end holes and far-end holes. Multiple sections of compact curtain walls are constructed to stop a fracture water passing channel; the flow control pulp stop pad is arranged in the water gushing port for reducing the flow rate of water currents in the karst pipe; and the pulp reservation quantity and the filling distance are increased, so that the pulp is effectively condensed to block the pipe. The technology system of non-continuous curtains+flow control pulp stop pad+key channel exploration and grouting finally realizes the curtain closure and the karst pipe blockage, thoroughly blocks the karst open sunken mining water gushing, guarantees no streaming phenomenon of karst water, and can effectively save the cost.

The invention discloses a grouting reinforcement effect three-dimensional spatial data acquisition method for a weak broken rock body. The grouting reinforcement effect three-dimensional spatial data acquisition method for the weak broken rock body comprises the following steps that (1) a multi-order high-recognition-degree grouting model test is implemented; (2) the arrangement of measuring lines is observed and the exposure of a profile is measured; (3) the characteristics of slurry gel are measured and recorded, and an indoor experimental sample is obtained; (4) the three-dimensional distribution pattern of the characteristics of a reinforcing body is described; (5) an indoor soil mechanics test and an indoor hydraulics test are implemented; and (6) the grout diffusion mechanism and the grout reinforcement mode are analyzed. The grouting reinforcement mode can be of a single type such as a compaction type, a permeation type and a fracture type or be of a combined type such as a compaction-fracture type and a permeation-fracture type. A quantitative research method for checking the grouting effect and determining the three-dimensional spatial data of the reinforcing body in the grouting model test is provided for the first time, and the problem that information is excessively lost and cannot be mined comprehensively in the grouting test is solved.

The invention discloses material for a fractured reservoir earthquake physical model. The material comprises quartz sand, epoxy resin, a curing agent and a water-soluble polymer film. The invention further discloses a manufacturing method of the fracture type reservoir earthquake physical model and the prepared fracture type reservoir earthquake physical model. According to the invention, the fractured reservoir earthquake physical model is constructed by embedding the water-soluble polymer material into artificial sandstones. The proportions of the water-soluble polymer material in the mixedmaterial are different; the fracture type reservoir earthquake physical model with the sound wave propagation speed difference range between 100 m/s and 500 m/s in each direction can be prepared. Compared with a conventional fracture type earthquake physical model, the invention improves the defects in a conventional fracture type earthquake physical model technology, can obtain an earthquake physical model with higher stability and similarity, and can obtain more accurate experiment data.

The invention relates to a three-phase stereoscopic fracture-type rolled iron core which is used for a transformer of the three-phase stereoscopic fracture-type rolled iron core. The three-phase stereoscopic fracture-type rolled iron core comprises three identical single-frame iron cores, wherein each single-frame iron core is formed by sequentially connecting a plurality of inner layer iron core sheets and a plurality of outer layer iron core sheets in a sleeving manner; an upper fracture seam is only formed at the upper yoke part of each inner layer iron core sheet of each single-frame iron core; the upper fracture seams of the two adjacent inner layer iron core sheets are formed in a staggered manner; each outer layer iron core sheet of each single-frame iron core is provided with a left fracture seam at the upper part of a left side iron core pillar, close to the upper yoke part, and is provided with a right fracture seam at the upper part of a right side iron core pillar, close to the upper yoke part; the left fracture seams of the two adjacent outer layer iron core sheets are formed in a staggered manner; and the right fracture seams of the two adjacent outer layer iron core sheets are formed in a staggered manner. The transformer made of the three-phase stereoscopic fracture-type rolled iron core has the characteristics of superior electromagnetic performance, short magnetic circuit, low field current, low no-load loss, small harmonic wave, low noise, small size, light weight, material conservation, energy conservation and the like.

The invention discloses an ankle fracture and ligament injury diagnosis method based on machine learning. The method comprises the steps of determining a computer feature extraction region, marking the classification of all X-ray image fracture types in each region, and marking the ligament injury type of a patient corresponding to an X-ray image, i.e., injury and non-injury, preprocessing the X-ray image to obtain a foreground image of the ankle skeleton, building an ankle fracture prediction model based on a BoVW+SVM algorithm, searching a frequent item set between bone injuries and ligamentinjuries in a case through an Apriori algorithm, mining association rules between affairs, taking bone injury results obtained through SVM classification as antecedent input, and predicting the ligament injuries and hidden bone injuries. By means of the method, a surgeon can be assisted in automatically reading the ankle skeleton X-ray image, diagnosis and treatment time is saved, and the diagnosis and treatment effect of ankle injuries is improved.

The invention discloses a reinforced concrete structure crack trend calculation method based on a moment tensor, and the method comprises the steps: applying a load to a reinforced concrete flexural member, collecting an acoustic emission signal when a crack is generated, and reading the amplitude of P-wave initial motion in a signal waveform received by a sensor; analyzing characteristic values of the moment tensors of different crack types based on mathematical analysis and a mechanical model, and establishing a crack type judgment standard; substituting the collected crack amplitude into amoment tensor equation set to obtain a moment tensor of the corresponding crack; normalizing the fracture moment tensor characteristic value, and judging the fracture type according to a fracture typejudgment standard; and calculating a feature vector corresponding to the crack moment tensor feature value, calculating a motion vector of the crack according to the feature vector, and determining an included angle between the motion vector and a coordinate axis, thereby determining the crack trend. According to the method, the position and trend of the stress crack of the reinforced concrete member can be determined, and a new way is provided for reinforced concrete structure health monitoring and disaster early warning.