217 results about "Oil exploration" patented technology

The invention discloses a delta-beach bar composite sand body prediction method, which comprises the following steps of S1, acquiring geological background data of a target work area, and dividing delta and beach bar deposition to obtain a beach bar deposition thickness; s2, carrying out source and sink system analysis, establishing a sediment transport channel path, and obtaining a sand body transport path plane distribution diagram; s3, the ancient landform, ancient wind field features and ancient wave field features of the target work area in the deposition period are restored, the ancient landform height and the distance to the source area of the underwater ancient protrusion are obtained according to the ancient landform, and the features include the ancient wind direction, the ancient wind path, the ancient water depth and the ancient wave height; s4, determining a favorable development zone, a favorable development layer section and a favorable development target zone of the delta-beach bar composite sand body; and S5, obtaining distribution characteristics of the delta-beach bar composite sand body of the target work area according to the favorable development zone, the favorable development layer section and the favorable development target area. According to the method, the delta-beach bar composite sand body can be accurately predicted, and technical support is provided for oil exploration and development.

The invention relates to a construction method, device, equipment and medium of a complex geological reservoir model, and relates to the technical field of oil exploration and development. Comprising the following steps: combining obtained riverway scale parameter data obtained by field actual measurement, a three-dimensional digital outcrop profile of an outcrop profile of a research area, a geological knowledge database of configuration units at all levels of a sub-facies reservoir of the research area, and sedimentary microfacies distribution of the outcrop profile of the research area obtained by combining the riverway scale parameter data to obtain X, Y, Z, Z, Z and Z; performing two-dimensional training image slicing in three directions of Z and Z; and performing three-dimensional training image simulation on the two-dimensional training image slices by using an s2Dcd-DS coupling algorithm, and performing three-dimensional geological modeling by using a multi-point geostatistics modeling algorithm to obtain a three-dimensional geological model. According to the construction method provided by the invention, the complex geological conditions and structural characteristics of the complex geological reservoir such as the plains of the braided river delta can be effectively represented, and oil and gas distribution, well location deployment and remaining oil excavation of the braided river reservoir can be guided.

The invention provides a rare earth silicon germanate scintillating material and a preparation method and application thereof, in particular to a rare earth silicon germanate scintillating material with high thermal stability and strong radiation resistance and a preparation method and application thereof, the general formula of the rare earth silicon germanate scintillating material with high thermal stability and strong radiation resistance is RE2 (1-x-delta / 2) Ce2xGedeltaSi (1-y + delta) Gey-deltaOz, in the formula, 0 lt; x is more than or equal to 0.05, y is more than or equal to 0.15 and less than or equal to 0.5, delta is more than or equal to 0 and less than or equal to 10 <-4 >, z is more than or equal to 4.95 and less than or equal to 5.05, RE represents a rare earth element, and the rare earth element is selected from at least one of lanthanum (La), lutetium (Lu), yttrium (Y) and gadolinium (Gd). The rare earth silicon germanate scintillating material provided by the invention has the characteristics of strong radiation damage resistance, high scintillation light output, low afterglow and the like while greatly improving the thermal stability, and can be used in occasions with extremely high requirements on the thermal stability or radiation resistance of the material, such as high-energy physical experiments, nuclear medicine imaging, oil exploration wells and the like.

The invention relates to the technical field of oil exploration and development, and discloses a drilling speed real-time prediction method only using historical data and controllable data. In order to solve the problem that traditional prediction depends on uncontrollable feedback data and unknown data under the undrilled depth, well drilling parameters are classified in detail, data constraints in real-time well drilling are analyzed, a prediction framework is provided, and missing real-time input is compensated through information in historical data. By integrating previously drilled areas, the model can improve prediction accuracy even when excluding uncontrollable parameters of the undrilled depth. The method emphasizes the importance of combination of a drilling speed prediction method and operation constraints in the real world. The discovery contributes to improving the applicability in drilling operation, provides a feasible solution for predicting the mechanical drilling speed under the actual conditions of limited data availability and complex geological environment, and contributes to intelligent development and management of an oil field.

The invention provides a method for constructing a geoelectric structure prediction model based on time-frequency electromagnetism, and belongs to the field of oil exploration. The method comprises the following steps: firstly, establishing an initial reservoir model based on a model-driven geophysical inversion process; then geophysical data and a corresponding reservoir model data set are collected, classified and standardized, and construction of the data set is completed; establishing a reservoir geoelectric structure prediction model based on the deep learning model; and finally training the reservoir geoelectric structure prediction model by using the data set to obtain an optimized reservoir geoelectric structure prediction model. Wherein the reservoir comprises an ultra-deep carbonate rock reservoir; the invention further provides a method for constructing the model for predicting the geoelectric structure of the ultra-deep carbonate reservoir. Compared with the prior art, according to the geoelectric structure prediction model constructed by the method, when observation data is input, an inversion result can be obtained without executing an iteration process, and the reservoir oil-water relationship can be further analyzed according to the inversion result.

A rotary device special for an oil exploration top drive device relates to the field of exploration and comprises a rotary body, a convex ring is arranged on the rotary body, the rotary body and the convex ring are fixedly connected, a fluted disc is arranged on the convex ring and connected with two rotating devices, the rotating devices are fixed on a shaft sleeve through a fixing frame, and the shaft sleeve is connected with the convex ring through a bearing. The two acting ends of the rotating body are each provided with a connecting device, the front end and the rear end of the rotating body are each provided with a supporting device B and a supporting device A. Maintenance cost is reduced, the connecting devices in the device are of a structure that concave holes are placed upside down, meanwhile, supporting columns are further arranged in the concave holes, all force bearing points are located on the supporting columns, and when the supporting columns are damaged, the supporting columns are not damaged. And the supporting columns can be replaced, so that the main body is prevented from being replaced, the cost is prevented from being increased, and the effect of reducing the cost is achieved.

The invention provides a seismic horizon interpretation verification method and device, electronic equipment and a storage medium, and belongs to the technical field of oil exploration and development, and the method comprises the steps: building a plurality of seismic comparison profiles passing through a central well point based on the preset central well point and a plurality of standard well points; well-seismic calibration is carried out on the plurality of seismic comparison profiles; carrying out seismic horizon tracking on the plurality of seismic comparison profiles based on the reflection characteristics of the seismic comparison profiles and the result of well seismic calibration, carrying out continuous rolling layer leveling on all tracked seismic horizon on the seismic comparison profiles, and correcting the seismic horizon based on the change trend between the upper horizon and the lower horizon of the leveled seismic horizon; and projecting the plurality of seismic contrast profiles after seismic horizon correction to a three-dimensional space, comparing the seismic contrast profiles with a preset seismic axis in the three-dimensional space, and if no difference exists, confirming that verification is completed. The technical problem that in the prior art, after a seismic interface is projected to a three-dimensional space, the spatial reasonability of seismic horizon interpretation cannot be verified is effectively solved.

The invention provides a method and system for identifying a volcanic institution facies belt boundary, and belongs to the technical field of oil exploration and development. The method comprises the following steps: dividing a drilled facies belt according to three-dimensional seismic reflection characteristics and a preset type of lithofacies proportion of a drilled well; constructing a near-source facies belt pseudo well and a far-source facies belt pseudo well based on the division result of the drilled facies belt and the multiple types of drilled lithofacies; based on the near-source facies zone pseudo well and the far-source facies zone pseudo well, determining a value range corresponding to a preset type of lithofacies proportion of the volcanic institution; based on the three-dimensional seismic data volume of the volcanic institution, a planar graph representing a facies belt is obtained; according to the value range corresponding to the preset type lithofacies proportion of the volcanic institution, volcanic institution facies belt division is carried out on the planar graph representing the facies belt, and the boundary between the near-source facies belt and the far-source facies belt is obtained. Therefore, the boundary between the near-source phase belt and the far-source phase belt is accurately and effectively defined, the near-source favorable phase belt of the volcanic institution is quickly focused, and a foundation is laid for an exploration target.

A gear box special for an oil exploration top drive device relates to the field of oil exploration and comprises a box body, a transmission device is arranged in the box body and connected with an input device A and an input device B respectively, the transmission device is further connected with a drill rod, an upper cover covers the box body, the upper cover and the box body are connected through bolts, and the bottom of the box body is connected with a bottom shell. And the gear B and the gear A are meshed with each other, the single set of gears are connected, it can be guaranteed that the structure is simple, meanwhile, it can be guaranteed that dislocation cannot occur between the gears, and the stability of the gears can be guaranteed.

The present application relates to the technical field of oil exploration, and more particularly to a pipe expanding type screw drill stator forming equipment, comprising: an outer mold structure, comprising an outer mold sleeve, the inner side of the outer mold sleeve having an inner profile line; a mold sleeve driving structure connected with the outer mold structure, used for driving the outer mold structure to rotate along its axis; an inner membrane core, provided in the outer mold sleeve, having a guide neck expanding section and a profile line section, the outer side of the profile line section having an outer profile line; a heating structure, provided at the front side of the guide neck expanding section; a forming support structure, used for supporting the outer mold structure, the mold sleeve driving structure, the inner membrane core and the heating structure; in the processing state, the pipe blank to be processed is heated by the heating structure, expanded in diameter by the guide neck expanding section, and then enters between the outer mold sleeve and the inner membrane core, the outer mold sleeve is driven to rotate by the mold sleeve driving structure, and the stator with the inner and outer profile lines is formed under the action of the inner and outer profile lines, which can solve the problems of deviation, low precision and low processing efficiency of the existing stator forming process.

The invention provides an oil exploration AI modeling system and method based on machine learning, and the method comprises the steps: comparing a time-delay seismic monitoring data volume of a target exploration work area with a reference seismic data volume, and generating a time-lapse seismic difference data volume; constructing a topological connection diagram according to a grid structure of the initial oil reservoir geologic model, and constructing a graph neural network by taking the difference data volume as an observation constraint of node attribute change, and further reasoning to obtain an attribute dynamic correction amount of each grid unit in the initial oil reservoir geologic model; generating a dynamically updated three-dimensional oil reservoir geologic model according to the attribute dynamic correction, and identifying a boundary section needing to be re-evaluated according to gradient change characteristics of the attribute dynamic correction in space; and generating an oil reservoir geologic model parameter adjustment instruction through the boundary section and the dynamically updated three-dimensional oil reservoir geologic model. By adopting the scheme of the invention, fault-crossing attribute error transmission can be avoided.

The invention discloses a corrosion-resistant tensile umbilical cable for an oil exploration platform, and belongs to the technical field of offshore oil exploration equipment, and the corrosion-resistant tensile umbilical cable for the oil exploration platform comprises an outer sheath, an inner protection layer, an enhancement layer, a waterproof layer and a cable core from outside to inside in sequence; wherein the cable core is formed by integrating a plurality of functional units; the waterproof layer is arranged between the cable core and the enhancement layer; the water-blocking layer is formed by superposing an expansion type water-blocking tape and an aluminum-plastic composite film; the enhancement layer is arranged between the sheath and the waterproof layer; the reinforcing layer is formed by spirally winding stainless steel wires and aramid fibers; spirally wound gaps are filled with a silane coupling agent modified nitrile rubber adhesive; the inner protection layer is formed by coating graphene / temperature-sensitive microcapsule self-repairing epoxy resin on the surface of the enhancement layer; and the outer sheath is formed by extrusion after fluororubber and thermoplastic polyurethane are blended.

The invention provides a core image pore identification method and system, and belongs to the field of oil exploration and development, and the method comprises the steps: taking an original U-Net network as a basis, adding a DropBlock layer and a BN layer in a convolution block of the original U-Net network, obtaining a reconstructed convolution block, replacing the jump between up-sampling and down-sampling in an original UNet model with a feature pyramid module FPN, and obtaining a reconstructed convolution block; an improved U-Net framework is obtained; and training the improved U-Net architecture to obtain a pore recognition model for recognizing the core image. And inputting a to-be-detected image into the pore recognition model to obtain a pore recognition result of the core image. The stability and reliability of the prediction result are enhanced, operators can make decisions more quickly, and oil exploration and development schemes are optimized.

The invention provides a logging-while-drilling high-speed transmission system and method based on multi-modal combination, and belongs to the technical field of oil exploration and logging-while-drilling, the logging-while-drilling high-speed transmission system comprises an underground acquisition unit, a transmission unit and a ground decoding unit, the underground acquisition unit continuously acquires multiple types of stratum parameters in the drilling process of a drilling tool and generates standardized data frames, and the transmission unit transmits the standardized data frames to the ground decoding unit; the transmission unit selects different transmission modes to transmit standardized data frames in real time, the ground decoding unit comprises an independent decoding layer, a redundancy check layer and a fusion layer, and the independent decoding layer performs wavelet transformation on the standardized data frames to separate modal signals corresponding to the transmission modes; the redundancy check layer marks conflict data with low consistency by calculating correlation among different modal signals and repairs the conflict data, the fusion layer constructs a probability fusion model based on a Bayesian network, and output data of the redundancy check layer is input into the probability fusion model to obtain decoded stratum parameters. According to the invention, efficient and reliable transmission of underground data can be effectively improved.

The utility model relates to the field of oil exploitation, in particular to an underground sampling device for oil exploitation. The underground sampling device for oil exploitation comprises a shell, the shell comprises a mounting pipe, the front end and the rear end of the mounting pipe are in threaded connection with an end socket and a tail pipe respectively, a plurality of through openings are formed in the outer side wall of the mounting pipe in a surrounding mode, and a hanging ring is fixedly mounted at the upper end of the end socket; a sampling barrel is slidably connected into the mounting pipe, the outer diameter of the sampling barrel is consistent with the inner diameter of the mounting pipe, the sampling barrel comprises a plurality of collecting barrels, collecting grooves are formed in the collecting barrels, liquid inlets communicated with the collecting grooves are formed in the outer side walls of the collecting barrels, and the collecting barrels are in threaded connection in sequence end to end. According to the device, petroleum at different depth layers in a well can be sampled for multiple times in one-time well descending operation, repeated well descending operation is not needed, compared with a traditional sampling mode, time and labor cost are greatly saved, and the working efficiency of petroleum sampling is improved.

The present invention discloses a method for rapidly calculating the response of remotely detected while-drilling electromagnetic wave logging in complex formation structures, relating to the field of electrical logging technology for oil exploration and development. The method comprises the following steps: establishing a two-dimensional heterogeneous isotropic geological model of the complex formation structure; using a regional rapid and precise description method to divide the formation into a collection of triangular units and assign resistivity values; determining the calculation region through adaptive thresholding, segmenting the x and z directions, and sequentially assigning resistivity values ​​to the calculation region grids according to the segmentation points to generate a calculation model; obtaining a large sparse matrix linear equation system; solving the equation system using a hybrid solver to obtain the distribution of the spectral domain field; calculating the integral of the spectral domain field with wave number according to the inverse Fourier transform formula to obtain the spatial domain distribution of the electromagnetic field; and moving each logging point to obtain the while-drilling electromagnetic wave logging response curve for the complex formation environment. The present invention can effectively and rapidly calculate the electromagnetic field response of complex two-dimensional formations, improving the algorithm's adaptability and calculation speed.

The invention relates to the technical field of oil exploration, in particular to a method, a system and a device for determining a strike-slip fracture pull section fault control reservoir target spot, and the method comprises the following steps: S1, determining a strike-slip fracture zone pull section target position range: S101, determining the spatial distribution position of a strike-slip fracture zone pull section according to the response characteristics of a strike-slip fracture zone pull section reservoir; s102, determining a target position range of a strike-slip fault strip pull segment according to a setting method; s2, in the strike-slip fault zone pull segment target position range determined in the S1, selecting a region in a first set condition range as a strike-slip fault zone pull segment target region range; s3, in the strike-slip fault zone pull segment target region range determined in the S2, selecting a region under a second set condition as a strike-slip fault zone pull segment target point position; by considering fault zone-reservoir combined interpretation and analysis, strike-slip fracture pull segmentation target spot design is carried out, the target spot design accuracy is improved, and a guarantee is provided for improving the target rate in a track.

The invention relates to the technical field of oil exploration, and provides an analysis method and device for safe tripping-in of a well completion pipe string, and the method comprises the steps: obtaining the actual hook load data and well section information of an open hole section based on a drifting process; constructing a tubular column friction torque calculation model of the drifting drilling tool assembly; on the basis of the tubular column friction resistance torque calculation model, the actual hook load data of the open hole section and the well section information of the well, the well hole open hole section friction resistance coefficient is calibrated; on the basis of well section information and the well hole open hole section friction resistance coefficient, a solving model of the axial force of the well completion pipe string and a critical load value calculation model of well completion pipe string buckling are built; and on the basis of the solving model of the axial force of the well completion pipe string and the calculation model of the critical load value of buckling of the well completion pipe string, whether the well completion pipe string is safely tripped is determined. According to the method, the friction resistance coefficient in the drifting stage is determined, the invisible shaft cleaning state is known, the current friction resistance coefficient is used for evaluating the to-be-tripped well completion pipe string, and therefore operation risks and operation complexity are avoided, and the operation efficiency is improved.

The invention discloses a nuclear magnetic probe relay mounting bracket assembly and a nuclear magnetic probe, and belongs to the technical field of oil exploration and development, the nuclear magnetic probe relay mounting bracket assembly comprises an electrical connection assembly, a sealing assembly and a frequency adjusting assembly, the electrical connection assembly comprises an upper joint, a lower joint and a transition rod, and the upper joint and the lower joint are respectively connected to two ends of the transition rod; the sealing assembly comprises a sealing plug body, a pressure-bearing sealing plug and a sealing plug contact pin, the sealing plug contact pin penetrates through and is connected to the middle of the sealing plug body in a sealing mode, the sealing plug contact pin is electrically connected with the lower connector, the pressure-bearing sealing plug is connected to the sealing plug body, and the sealing face of the pressure-bearing sealing plug protrudes out of the outer diameter side of the sealing plug body; the frequency adjusting assembly comprises an installation disc used for installing a relay, and the installation disc is connected to the side, close to the upper connector, of the sealing plug body. The sealing assembly is used for sealing, the frequency adjusting assembly is used for frequency adjusting, the sealing performance in the ultrahigh-pressure well hole environment can be improved, and the frequency adjusting precision is improved.

The utility model relates to the technical field of camping houses, and discloses a camping house for petroleum exploration, which comprises a living box body, two entrances and exits are symmetrically arranged on the side edges of the living box body, closing doors are rotatably mounted on the entrances and exits, a box body supporting assembly is arranged at the bottom of the living box body, and a box body is arranged on the box body supporting assembly. A box body supporting assembly is arranged at the bottom of the living box body, a moisture-proof height adjusting assembly is arranged on the box body supporting assembly, the box body supporting assembly and the moisture-proof height adjusting assembly are arranged at the bottom of the living box body, and a polyurethane foam plate and a waterproof sealing plate are arranged at the bottom of a supporting bottom plate in the box body supporting assembly. The polyurethane foam plate can improve the moisture-proof capacity of the bottom of the supporting bottom plate, so that the distance between the bottom of the living box body and the ground can be flexibly adjusted according to user requirements, the ventilation capacity of the bottom of the living box body is improved, and the box body supporting assembly at the bottom of the living box body can be effectively prevented from being easily affected with damp for a long time to be damaged; the service life is prolonged.

The invention relates to the technical field of oil exploration and development, in particular to a winding type belt driving tower crane roller and a kinetic parameter calculation method thereof, and mainly solves the problems that an existing belt friction type driving roller of a tower crane is low in efficiency, and a kinetic parameter calculation method of the belt friction type driving roller cannot be suitable for a belt winding type roller. The device comprises a barrel, three belts are wound on the outer surface of the barrel, beam hanger end belts are arranged on the two sides, a counterweight end belt is arranged in the middle, one end of each beam hanger end belt is fixed to the barrel, the other end of each beam hanger end belt is connected with a beam hanger, one end of each counterweight end belt is fixed to the barrel, and the other end of each counterweight end belt is connected with a counterweight. According to the winding type belt driving tower crane roller, friction type driving is changed into belt tension driving, driving is more reliable, the efficiency of a tower crane is greatly improved, meanwhile, various characteristic values of the suspension point end and the balance weight end of the tower crane can be accurately obtained through a kinetic parameter calculation method, and scientific reference bases are provided for optimal selection of operation parameters of the tower crane.

The invention discloses a production well oil-water two-phase output condition evaluation method and system, and relates to the technical field of oil exploratory wells, and the method comprises the steps: solving a pressure value, a pressure change rate, a temperature value and a temperature change rate at a non-perforation stable section of a target production well based on temperature-pressure profile test data; inputting the pressure value, the pressure change rate, the temperature value and the temperature change rate into a production well oil-water two-phase output condition evaluation model to obtain the liquid production capacity, the oil production capacity, the water production capacity and the water content of each section of the target production well; based on the liquid production capacity, the oil production capacity, the water production capacity and the water content, the oil-water two-phase output condition of the target production well is evaluated.

The present invention relates to the technical field of oil exploration, and is a wellbore liquid level measuring device, which includes a wellhead sound generating device, a control device, a gas generating device and a connecting pipe. The outlet of the gas generating device is fixedly connected and communicated with the inlet of the wellhead sound generating device, and the outlet of the wellhead sound generating device is fixedly connected and communicated with a connecting pipe. The structure of the present invention is reasonable and compact, and it is convenient to use. Through the control device, the gas generating device transmits gas into the wellhead conduit and generates sound waves. The sound waves are transmitted to the lower part of the wellhead conduit. When the sound waves reach the liquid surface, echoes can be generated. The reflected sound waves are received by the wellhead sound generating device, and then the liquid surface position can be calculated through the control device. It can timely master the dynamic information of the drilling fluid liquid level, effectively prevent the occurrence of drilling accidents, provide technical guarantee for engineering prediction, and has the characteristics of safety, labor saving, simplicity and high efficiency.

A method for improving thin interbed oil reservoir fluid earthquake prediction precision relates to the field of oil exploration and development, and comprises the following steps: carrying out rock geophysical analysis through logging information, and screening earthquake attribute types sensitive to oil reservoir fluid; based on the sensitive attribute type, performing resolution enhancement processing on the seismic data to generate optimized seismic attribute data; stratigraphic slicing processing is carried out on the optimized seismic attribute data along a target horizon, and seismic fluid sensitive attributes are extracted; performing time calibration and regression modeling on the well logging fluid interpretation result and the seismic fluid sensitive attribute, and establishing a fluid distribution prediction equation; based on the fluid distribution prediction equation, seismic fluid sensitive attributes are converted into an oil reservoir fluid plane distribution diagram, and thin interbed fluid prediction is achieved.

The application belongs to the technical field of oil exploration, and discloses a method for improving the precision of a velocity model by using azimuth information, which comprises the following steps: improving the signal-to-noise ratio of shot gather data; establishing an initial velocity model in the depth domain; improving the signal-to-noise ratio of pre-stack depth migration profiles; outputting reflection angle gathers; picking up azimuth residual depth differences; obtaining azimuth residual depth differences after ray tracing; obtaining new velocities and velocity updating amounts; obtaining final velocities; and performing depth migration processing, and iteratively updating the new velocities until the reflection angle gathers and common offset gathers are flattened. The application improves the velocity inversion precision of middle and deep layers and effectively improves the velocity inversion precision of shallow layers. The application is suitable for establishing a velocity model in the depth domain.

The application relates to the technical field of mechanical equipment, in particular to a drilling fluid centrifuge device for oil exploitation, which comprises a screw propeller, a rotating drum, a driving assembly, a cleaning assembly I and a cleaning assembly II. According to the working principle of the existing horizontal screw centrifuge, the screw propeller rotates in the same direction as the rotating drum, but the rotating speed is lower than that of the rotating drum. Three roller brushes are rotationally connected to the outer side of the screw propeller, the right ends of the three roller brushes are rotationally connected to a tripod, the tripod is fixedly connected to the right end of the screw propeller, a gear is fixedly connected to the position close to the right end of the three roller brushes, a tooth ring is fixedly connected to the inner wall of the right end of the rotating drum, the tooth ring is engaged with the gear, so that the tooth ring is driven to rotate when the rotating drum rotates, and then the engagement between the tooth ring and the gear drives the gear to rotate, so that the gear drives the roller brushes to rotate, and the stationary ring layer on the inner wall of the rotating drum is further cleaned when the roller brushes rotate.

The present application belongs to the technical field of oil exploration, and discloses a method for evaluating the development degree of sand-mudstone reservoir-cap assemblage, which specifically comprises the following steps: conducting regional data analysis for a study area, and mastering the core / cuttings data, logging data and oil testing and production testing data of drilled wells, as well as the seismic data and seismic interpretation horizon data of the whole work area; conducting pre-stack deterministic inversion based on Zeoppritz equation to obtain the data body of the ratio of P-wave velocity to S-wave velocity in the work area; extracting the numerical value of the ratio of P-wave velocity to S-wave velocity along the sandstone layer interpreted by the seismic data to obtain the plan view of the sandstone reservoir; extracting the numerical value of the ratio of P-wave velocity to S-wave velocity along the mudstone layer interpreted by the seismic data to obtain the plan view of the mudstone cap rock; quantifying the relative development degree of the reservoir-cap assemblage by a development degree index calculation formula, constructing the plan view of the development degree index of the sand-mudstone reservoir-cap assemblage, and quantitatively dividing the development degree of the reservoir-cap assemblage. The present application can clearly define the development range of high-quality reservoir-cap assemblage, delineate the favorable exploration area, and further guide the well site deployment of exploration wells.

The invention discloses an ocean platform-pipe column-seabed equipment multi-body coupling experiment device and method, and the device comprises an experiment frame which comprises a top pedestal, a bottom pedestal, and a supporting mechanism disposed between the top pedestal and the bottom pedestal; the drilling simulation rotating system comprises a motor and a simulation drill rod, the motor is installed on the top base, the upper end of the simulation drill rod is detachably connected with the motor, and the lower end of the simulation drill rod is provided with a simulation underwater wellhead through a connecting device; seabed soil is contained in the soil box; and the detection device is used for detecting working parameters of the simulation drill rod, and the working parameters comprise any one or combination of the following parameters: stress parameters, rotation speed and torque. Experimental simulation requirements of deep-sea oil exploration and development can be met, so that actual production is guided, and the drilling efficiency and the success rate are improved.

The invention relates to the technical field of oil exploration and development, and discloses a hot dry rock temporary plugging material optimization screening method based on a multi-parameter coupling model. The method comprises the steps of temporary plugging material data set formation, high-temperature aging experiment, compression resistance test, three-dimensional finite element model construction, force chain structure evolution analysis, indoor crack plugging experiment verification, shear stability evaluation and multi-parameter comprehensive evaluation. According to the method, multi-dimensional parameters such as high-temperature aging, dynamic shear stability and particle matching are integrated, numerical simulation and experimental verification are combined, high-precision and high-efficiency screening of the temporary plugging material is achieved, the problems of single index limitation and environment distortion of a traditional method are solved, scientific and reliable technical support is provided for hot dry rock development, and the method has a wide application prospect. And the problems in the background technology can be effectively solved.

The application provides a sample classification method and device for first arrival wave deep learning, and relates to the technical field of oil exploration. The method comprises the following steps: acquiring training sample data and classification information to which the training sample data belongs; the training sample data comprises first arrival sample data and first arrival label data corresponding to the first arrival sample data; a classification network model is trained by using the training sample data and the classification information to obtain a training result; and the training result is used for classification prediction processing on to-be-classified first arrival sample data to obtain a first arrival sample classification result. The application can accurately and efficiently classify and screen the first arrival sample data, enriches the type feature information of the first arrival sample data, and improves the pertinence and effectiveness of first arrival wave sample deep learning.