The design idea,structure design and selection of digital filter chip of different seismic instrument manufacturers are unique, so the filtering characteristics and technical performance is different.With the wide application of nodes instrument,the hybrid acquisition between cable instrument and nodes,different nodes instruments become more common.In order to guarantee the data consistency of hybrid acquisition,we need to consider the filtering method,the pre-amp gain matching,the selection of low cut frequency and the method of DC offset removal,and choose the appropriate parameter to eliminate the impact as far as possible.We should focus on the first sample handling method of different instruments also,the best solution is to optimize the control timing sequence of source excitation system and ensure the start time on the edge of whole seconds(or 4,8ms),so it always can find the sample＇s recording time which coincides with the GPS time at excitation time perfectly.Because the data parsing and compositing method of different seismic instruments is different,so it needs to plan the work process according to the working principle ahead of schedule,and that will improve work efficiency.

With the large-scale promotion and use of eSeis Neo node instruments and the rapid increase in the number of units, how to achieve efficient and accurate maintenance of node instruments has become the key to ensure the smooth operation of node projects. In this paper, a portable inspection stand (hereinafter referred to as the inspection stand) is proposed, which can be used to test the entire eSeis Neo node unit and the circuit board simultaneously. The overhaul table has the advantages of small size, light weight, simple operation, convenient and fast, accurate test, etc. lt is especially suitable for field maintenance and can greatly improve the ability and efficieney of field maintenance, and is worth promoting and using.

At present, VibPro HD and VE464 are two main electronic control systems for seismic exploration and production on land vibroseis. The USM system of BGP company with independent intellectual property rights is widelyused in various exploration areas in China based on the node acquisition project. The application of high-efficiency excitation management of VibPro HD electronic control system for vibroseis and dynamite node construction has beenrealized, but the application of high-efficiencyexcitation management of vibroseis based on VE464 electronic control system has not been realized. In this paper, a high-efficiency VE464 vibroseis excitation technology based on USM system is proposed, and the related hardware configuration and related ope-ration methods are introduced.

This paper mainly studies the method of accurate design and extracting accurate coordinates on the UAV aerial piece when the vibrator source is used in the petroleum seismic exploration project. After the UAV completes the aerial flight in the seismic work area,the vibrator construction path can be designed on the UAV according to the specific landform conditions,then apply the geographic information software ArcGIS to project the vibrator path into the field coordinate system and extract the focal path coordinate file,import the coordinate file into the mapping software cass,then use the mapping software cass to design the source of the project,and finally install the standard source navigation data format for seismic construction.Through specific experiments,prove on the UAV aerial design,application of geographic information software ArcGIS and surveying and mapping software cass extraction coordinate accuracy and artificial RTK(Real-time kinematic,real-time dynamic carrier phase difference measurement)lofting accuracy,reach centimeter level,fully conform to the requirements of the oil geophysical measurement specification,this method can realize the precise design of the focal navigation point design.This directly on the UAV precision design vibroseis point and use the software directly extract the coordinates of innovation method to oil seismic exploration project focal point coordinate design to realize the software,intelligent,replace the previous artificial RTK measurement operation,improve the production efficiency,in ensuring the quality of focal point design while saving the production cost,and avoid the danger of the measurement field operation.

In offshore seismic exploration operations,the integrated navigation system plays a crucial role,which is not only responsible for the real-time navigation and positioning of the operating vessels,but also undertakes the tasks of comprehensive monitoring of the operating site as well as data acquisition and control.This paper introduces the composition of Geo SNAP Dolphin and explains its technical characteristics in detail,and demonstrates its advantages in system construction,simplified configuration,data communication and integrated operation,etc.Finally,combined with the practical difficulties encountered in offshore seismic exploration projects,it further elaborates on the effective solutions of Geo SNAP Dolphin and its remarkable effects in practical application.

Quality control is the key to ensure the stable performance and accurate data of the eSeis series node instruments.However,with the continuous expansion of the scope of use,the quality control issues of the eSeis series node instruments have become increasingly prominent.The extraction and analysis of the self-test test results of the eSeis series node instruments is a key quality control link in practical applications.This article elaborates on the problems existing in this link,proposes an optimization plan and gives the specific implementation results.

This paper describes how to use batch scripts to configure the lP address of the navigation tablet computer , turn off the firewall and system automatic update on the navigation tablet computer and workstation of the USM ( Ultimatet $Source Management) system, automatically copy the coordinate system conversion file, queue configuration file and software configuration file of the navigation software, delete the useless backup quality control data and the force signal of the electronic control equipment in the preparation for vibrator construction, and explain the command statement of the batch script, The use of batch scripts effectively improves the work efficiency of the vibrator construction preparation stage,at the same time, it avoids the production stagnation caused by the restart of the navigation tablet computer and the failure of the built-in timing board driver of the USM workstation.

eSeis node unit is an important equipment used for data acquisition in modern seismic exploration node instrument,and the quality of the acquired data will directly affect the accuracy of the later data processing and geological structure interpretation.This paper starts with the principle of eSeis node unit collection index test,analyzes the causes of its collection index test failure in detail,and summarizes several common faults and specific diagnosis and maintenance strategies,so as to ensure the accuracy of node unit data collection index,ensure the node unit can work stably,and maintain the quality and reliability of data collection.It provides effective technical support for field operation.

The Z100node uses the CSAC-SA.45s(Chip Scale Atomic Clock)atomic clock for accurate timing during the independent acquisition process.The atomic clock provides an extremely accurate time reference for the node.It can measure time with extremely high precision to ensure the time synchronization of the node.In distributed systems,collaboration and data exchange between nodes often require accurate time synchronization.The stability of the atomic clock also provides a guarantee for the long-term operation of the node.As the Z100 node is continuously promoted and applied in the field of ocean exploration,detecting the internal atomic clock is the basis for accurate timing and also a guarantee for accurate segmentation of seismic data.This article mainly ntroduces the detection method and relevant parameters of the Z100atomic clock,providing a reference for the detection of atomic clocks.

In recent five years, the main acquisition instruments in domestic exploration market are gradually replaced by wired system to node system. Node acquisition system has the advantages of less labor, small footprint, observing system changeable at any time and so on. As the proficiency of each team rises, the efficiency of the equipment is constantly improved, and the bottleneck of the field operation is gradually shifted to the vibroseis excitation. The traditional codec - controlled excitation method, which relies on manual radio broadcasting and manual operation of dynamite, is far from being able to adapt to the “node era”. In this regard, all the physical exploration equipment companies and physical exploration companies have developed high - efficiency excitation equipment for dynamite to meet different problems according to the production organization habits and characteristics of the work area. Especially, BGP Company has developed a series of operation methods and systems, forming a comprehensive operation platform that supports the mixed excitation of vibroseis, air gun, traditional electric detonator and digital electronic detonator. This paper mainly introduces the high - efficiency excitation system for dynamite.

In the construction of geophysical survey project,the RTK operation mode of 1reference station and multiple rover stations is usually adopted,and the construction will be suspended every day due to the inability to receive the radio relay signal,and the rover station needs to wait for the radio relay to relay the signal before normal construction.When the rover does not have a datalink differential signal or network signal and cannot be constructed normally,the endurance function of the Starlink provides a new solution for the continued construction of geophysical surveying.This article introduces the Starlink endurance function(aRTK)of China Atlas and the Starlink endurance function of the G970II.GNSS receiver,and the test and accuracy analysis of the Starlink endurance function.After comparative analysis,it is concluded that if the Starlink battery life function is used,the construction can be continued within 20minutes after the radio relay signal is lost,which solves the problem of stopping the operation due to the lack of radio signal for a short time,and improves the production efficiency.

In order to cope with the complicated scientific and technological competition in various countries and ensure the autonomy and control of the technology in the field of geophysical survey, the feasibility of using the Beidou system alone in the current geophysical survey operation is discussed, This paper introduces the advantages of Beidou navigation satellite system compared with other navigation satellite systems. By using the existing mainstream geophysical GNSS measuring instruments and software, the paper analyzes the impact of the Beidou system on the accuracy and efficiency of static baseline measurement, solution and RTK measurement in the current petroleum geophysical survey production application scenario. Based on the industry specification requirements of onshore petroleum geophysical survey, the feasibility conclusions and suggestions are finally given.

At present, the nodal seismometers have been widely used in seismic acquisition projects. This king of instrument improves acquisition efficiency greatly, but also brings about the problem of easy to loss and difficulty in finding in field. Especially when nodal seismometers encounter tilting, occlusion, theft and concealment, the signal is weak or cannot provide coordinate information at all, and the cost of manual search is high and the efficiency is low. In response to the above issues, this article proposes a technical solution for positioning and tracking lost Bluetooth type nodal sseismometers in the field, which comprehensively utilizes technologies such as drones, radio, and ground air synchronization, to replace manual search mode, in order to achieve fast and efficient retrieval and reduce search costs. The paper explores in detail how to use the wireless physical characteristics of Bluetooth signals, as well as mathematical spatial analysis geometric tools, combined with a series of technologies such as drones, to form a 'triangulation directing and cross positioning method to achieve efficient positioning and tracking of lost Bluetooth type nodal sseismometers in the field.

The vibroseis will produce various types of noise during construction,which also includes the additional noise generated by the mechanical movement of the source itself,which will produce interference signals in the seismic record and reduce the signal-to-noise ratio of the signal.This not only affects the quality of geological exploration data,but also affects the reliability and stability of the hydraulic system,resulting in damage to the system equipment.From the angle of hydraulic system design,this paper analyzes the cause of the noise produced by vibroseis hydraulic system,puts forward the corresponding noise reduction measures for the main noise sources,and compares several common noise reduction methods to provide reference for the research of noise reduction of hydraulic system.This paper analyzes the cause of the noise produced by the components of the vibroseis hydraulic system,and briefly expounds the solution when the noise occurs during the operation of the vibroseis.

Currently,The Beidou satellite navigation system has been fully built.Compared to other satellite navigation systems,the Beidou satellite navigation system has higher security and reliability,higher precision and accuracy.At the same time,Beidou satellite navigation system has also added functions such as location reporting, one click rescue,and short messages.In the absence of Beidou short message series equipment,vehicles and personnel will lose contact in the signal blind area,and there are great safety risks.It is precisely because of the newly added short message function of Beidou navigation system that the management of personnel and vehicles in the signal blind area is no longer a problem.This article mainly discusses and explains the basic function, usage method,common problems and solutions of the BeiDou short message series,the application in oil exploration and the next plan.

Understanding the vibrator - ground coupling vibration model is the key to analyzed vibrator performance. The mechanical properties of both soil and vibrator mechanic can cause bad performance. Earth damping and elasticity are two important parameters that affect the performance of seismic vibrator. Soil properties of stiffness and dynamic damping should be considered important parameters to base plate accelerometers, the research results show that the model shape of the second - order resonance is that the plate mass and the baseplate resonate in opposite directions, and the baseplate dominates the response, smaller damping will cause more amplitude of baseplate amplitude. The baseplate - earth coupling model analysis shows that the ratio of baseplate acceleration and mass acceleration is limited by the ratio of mass and baseplate at high frequency. The resonance frequency is an important index affecting the high - frequency extension, the higher the resonance frequency, the smaller the phase difference between the baseplate and the mass at the same frequency, so the baseplate and mass must be controlled to improve the resonance frequency.

With the development of geophysical technology,SY/T 6661-2012 "Calibration methods for geophone" has some problems and deficiencies,such as geophone classification and calibration methods.This paper conducts relevant experiments and analysis on these problems,and puts forward corresponding modification opinions and suggestions.This paper is intended to maintain the authority,rationality,scientificity and accuracy of the industry standard.This is convenient for the standard to be refined when it is revised.

The real-time data acquisition terminal(hereinafter referred to as the acquisition terminal)of the digital platform system for vibroseis is a newly developed vehicle mounted device used for real-time acquisition and transmission of operational status data of EV-56vibroseis.The acquisition terminal can combine the CAN bus system of EV-56vibroseis to collect real-time operational status of vibroseis,and can also expand the collection of independent external RS485type sensor data.Information transmission is carried out through 4Gmobile communication network and satellite communication.The acquisition terminal uses MQTT based network communication protocol to transmit data between the acquisition terminal and the server platform.This article introduces the characteristics of the CAN circuit system of EV-56vibroseis,the interface expansion function of the acquisition terminal,the data communication characteristics,the MQTT communication protocol,and the preliminary application situation.

With the full implementation of digital detonators to replace electrical detonators n the seismic explorationindustry compulsorily.it is necessary to master the characteristics, operating requirements and processes of electricaIdetonators as soon as possible.By analyzing the characteristics of digital detonator and its adaptability in seismic exploration industry, thekey performance parameters such as detonation delay and consistency of digital detonator triggered by initiator are tested and analyzed. Based on the analysis of the current situation of digital detonator for seismic exploration and thecontrol process of digital detonator for civil explosion information system, the advantages andchallenges of digital detonator in industry application are expounded, and some developmentsuggestions for future application are put forward.

In this paper, the statistical and analytical methods of vibrator time efficiency are discussed in detail, aiming to reveal the main factors affecting the duration of a single vibrator. Based on the time data recorded by the VibPro HD, this study is closely integrated with the Ultimate Source Management System (USM) (hereinafter referred to as the USM system), and the practical application and theoretical exploration of the efficiency statistical function are carried out. Through the analysis on the calculation efficiency of random experiments, the effects of moving time and waiting time for excitation on the duration of a single shot are revealed. At the same time, with the help of application cases, the simulation application of efficiency statistics function in 3D seismic exploration projects was demonstrated, and the construction scheme to maximize the efficiency of vibrators was successfully found, which provided a strong guarantee for the cost reduction and efficiency increase of the project.

The Quantum node seismic instrument single point multichannel tapping method is a simple and efficient method for tapping the number of channels. This method requires measuring the tapping sites in advance, establishing a stepping project based on the measurement results, and writing the tapping parameters into the Quantum acquisition station. Before tapping, 12 Quantum acquisition stations are tightly connected around a single measurement point. The number of stations arranged for a singlestation measurement line node does not exceed the number of firing downholes from all downhole cabinets, and multiple measurement points are tapped simultaneously. During the process of downloading data, the data processing software TX1 automatically extracts the internal GNSS coordinate correction field measurement coordinates of Quantum node collection stations, forming the same track sequence as the actual measurement layout. The track sequence of 12 collection stations on a single measurement break point is consistent, and the polarity anomaly station can be easily and quickly selected through the first break waveform.

In marine OBN seismic acquisition,the status of nodes on the seabed often changes.For example, coordinate movement,angle rotation,recording errors and so on.These changes need to be reflected in the RPS files and XPS files.The method introduced in this paper can generate the correct multi-index RPS files and the XPS files with exact time matching,the software has been developed and well applied

The article discusses the critical importance of data integrity in seismic exploration and its potential implications on decisions related to resource development.It provides an overview of the six pivotal stages in seismic exploration,spanning from surveying to instrument reception,emphasizing the risks of dropout points that can occur at each phase and the interdependencies among them.Following this,it conducts an in-depth analysis of the reasons behind dropout occurrences in field operation settings.Based on this context,the paper explores a method for efficiently and accurately querying dropout points in seismic exploration,with the aim of improving data integrity and ensuring the quality of seismic acquisition data.

This study aims to design and implement an intelligent knob with the capability to output digital signals in human-machine interaction, Traditional knobs face challenges such as limited detection performance, poor stability, cumbersome operation, slow response, and low readability for MCUs(micro controller unit). To address these issues, the research employs specific encoding techniques and material selection, successfully crafting an intelligent knob capable of outputting digital signals, The knob plays a crucial role in controlling multiple circuit paths, making complex circuits easy to manipulate, The article introduces the design, detection, and display scheme of an intelligent knob capable of digital signal output, The digital signal output knob utilizes the CD40147BCMOS encoder to convert decimal data into a four-thread BCD format, Subsequently, the data is serially input to the MCU through the SN741CT165 shift register,. The digital signal output knob exhibits strong data readability, rapid response, low failure rate, ease of control, and a simple structure.

This paper proposes the exploration and application of ad - hoc network system for physical exploration in physical exploration production, aiming at solving the communication problems during the construction of physical exploration in network - free areas. By comparing and analyzing 4G mobile network, MESH ad - hoc network and BeiDou communication, a wide and narrow band dual MESH self - organized network system suitable for physical exploration production is explored to realize the full coverage of network in the network - less area of physical exploration and reduce the cost of network construction. The mobile APP of the Giscis system collects and uploads the production data in the process of survey, drilling and explosion that the Gisics system through the ad - hoc network equipment in the network - less area, solving the problem that the construction personnel cannot upload the collected data to the cloud in real time. Seismic team managers can command and dispatch the production through the real - time uploaded data, and when the field workers encounter emergencies, they can communicate with the team in time through the ad - hoc network equipment, so as to improve the efficiency and quality of the production of physical exploration and reduce the safety risks.

Impedance matching is a technical issue that cannot be ignored in electronic circuits. Whether the impedance of circuits matches not only affects the quality of signal transmission or acquisition, but also affects the safety of electronic circuits itself. In petroleum seismic exploration, the impedance matching of seismographs does not mean strict consistency of impedance in the analog signal acquisition channel, as the concept of impedance matching in the telecommunication field. Instead, it refers to the reasonable design for the input impedance of the acquisition station and the impedance of the geophone itself, in order to ensure that seismic signals can be acquired with high quality. This article mainly discusses the impact of impedance matching between the input impedance of seismographs and the internal resistance of magnetoelectric geophones on the acquisition effect of seismic signals, hoping to be helpful to peers.

The hydraulic drive motor is the core execution element of the vibroseis drive system, and at present,the drive motor used in mainstream vibroseis is mostly the Danfoss H1-B-160 type drive motor. In the process of disassembly and maintenance, it is often inconvenient to operate in a narrow maintenance space, time-consuming and laborious for manual handling and lifting, and difficult to align the coaxial and other problems. Due to the difference in physical strength and experience of maintenance personnel, the maintenance efficiency and quality will be affected to a certain extent, accompanied by certain safety hazards. Based on this, the authors'organization has developed a semi-automatic disassembly platform for vibroseis drive motors, aiming to improve the efficiency and safety of drive motor disassembly by introducing semi-automatic operation instead of pure manual operation. In this paper, the structure, working principle and application effect of the platform will be described.

In view of the actual situation thatmaterials handling in complex mountain geophysical exploration projects in south China can only rely on manual handling methods such as human lifting and shoulder carrying, which havehigh labor intensity, low efficiency and high saety risk, the performance characteristics of TF600 heavy-duty UAV are deeply explored. This paper summarizes a set of safe and efficient usemethods for heavy duty UAV to transport geophysical exploration materials in the south mountains from the aspects of transport mode, take.off and landing points and drop points selection, remote control mode, route planning and safety verification, lifting materials collocation andpackaging, flight control, precautions and so on. lt can improve the transport efficiency of geophysical exploration materials and reduce thesafety risk of transport operations.

The electric spark source is a newly developed seismic exploration excitation instrument in recent years,which is more and more popular because of its advantages of safety,environmental protection,reusable and low cost,at present,it is mainly used in coalfield exploration,shallow exploration,seismic production and surface survey.With the solution of the instability of the high-power EDM source instrument,it can produce more than 200meters deep wells in the surface survey operation.At the same time,the crosstalk phenomenon can also be solved,which is also a development direction of seismic exploration stimulation.In the application of the electric spark source,there are certain requirements for the firing depth.From the existing data,it can be determined that the firing depth in water is below 9meters,on land,the determination should be based on shallow water,high-speed layer and actual experimental results,but not too shallow or ground guns will appear.Now the seismic exploration to the cost control is very strict,therefore is the efficient acquisition,here in the construction of the proposed rolling acquisition,can guarantee the construction efficiency,at the same time,it can ensure that the excitation sources do not interfere with each other and ensure the quality of seismic data,this will continue to improve with technological progress,and the second is through the combination of multiple electrical spark source simultaneously fired way to improve the single shot of energy.Finally,based on the above new technology,the future research and development direction of electrical spark source will be verified step by step in the future exploration,the technical potential will be stimulated in the future application.

AlV380 vibrator is widely used in overseas exploration projects, and its circuit system is powered by12 volts generators. The 12 volts generator is mounted on the engine and driven by a pulley, Because the vibratoris equipped with all kinds of electrical appliances such as the whole car light, electronic control box, radio, navigation system, etc. , when the vibrator is running, the generator is basically working under full load. In addition, the working environment of exploration projects is harsh, and the working mode is generally 24 h continuous running. Large loads and harsh environments lead to a very high generator failure rate, and mechanics lack systematic knowledge when repairing damaged generators, and the recovery rate is extremely low, The Delco Remy 30 Sl generator is one of the more commonly used generators. This paper mainly analyzes the working princi.ple of Delco Remy 30Sl, and explores the fault analysis and maintenance methods of generators.

Micro motion exploration method is a gradually developed exploration method in recent years, which uses instruments to collect weak vibrations in various directions on the Earth's surface and is a "natural" signal.Extract surface wave dispersion signals from collected signals to infer underground structures. Due to its advantages of high efficiency, non-destructive testing, and wide applicability, it is widely used in energy exploration,engineering geology, road engineering, karst cave detection, and other fields. Underground air raid shelters,concealed culverts, and other structures pose potential risks to urban construction and are prone to accidents suchas collapse, seepage, and settlement, This article selects typical cases and analyzes and summarizes the application process of micro motion exploration method in civil defense engineering exploration, providing ideas and directions for solving similar difficult problems in urban construction.

OBN is the main method of marineseismic acquisition at present, and its point accuracy is one of the main factors in evaluating seismic data. In actual offshore exploration operations, GPS and other positioning systems areused to deploy nodes into the sea according tothe designed coordinates. Due to the influenceof OBN nodes' own gravity, sea buoyancy, artificial throwing error, hull speed, wave current and other factors, the actual bottom position ofOBN often deviates from the preset position. This paper takes OBN weight as the research object to study the influence of different ocean current directions and ocean current velocity on node point offset of different weight, and combines the conclusion with the practice.

As the seismic exploration industry transitions towards high-density and high-productivity survey operations, traditional manual surveying methods, characterized by high costs, low efficiency, and labor-intensive repetition, are becoming increasingly in adeguate for project requirements. This paper introduces the fundamental principles of the Kalman filter algorithm and discusses its successful application in offshore seismic survey. Furthermore, an automated surveying and stakeout method integrating high- precision GNSS positioning system and Kalman filtering is proposed. Applied in a large-scale 3D seismic survey project in the Middle East, this technological solution utilizes high,precision vehicular measurement equipment to achieve real time high-accuracy positioning during vehicle motion, complemented by mechanical automation and assistive driving technologies. This has significantly enhanced the efficiency and quality of staking-out operations, demonstrating its practical value and potential for broader adoption within the seismic exploration industry.

With the development of node instrument technology, more and more node instruments appear in the seismic exploration market. Various brands of node instrument are abundant in endlessly. Although the basic principle of node data processing software is the same, the data processing software of each brand also has its own characteristics. Some are putting data cutting in the data download stage, some are cutting data into synthesis for one time operation, and some are separating each data processing stage into each operation part. In terms of software integration, it is also different, Some data correlation is not strong, and some data correlation affects the accuracy of subsequent data processing. This paper discusses the development of future node data processing software based on the characteristics of several common node data processing software.

Under the strategic guidance of steadily promoting the “Open Ocean” Nodal Node business to become stronger and better in the company, the marine node exploration business is flourishing. Currently, the company has more than 100,000 sets of node equipment, and the types of supporting acquisition equipment are more diverse. To enhance the standardized management level of marine node equipment, the company has developed the node equipment management software. This software uses WPF (Windows Presentation Foundation) technology and is highly suitable for the development of Windows desktop applications. This article details the functions of this software related to business activities, standardized information entry, user management, and equipment information management, providing a basis for the promotion and use of the marine node equipment management software in the future.

The sensor circuit simulation of the vibrator control system uses analog circuit to simulate dynamic response of the vibrator control system sensors, and cooperates with the vibrator electric controller to realize the installation, calibration and sweeping control functions of the vibrator. PELTON company has designed simulators for a long time, and most electronic components have been discontinued or non - standard, resulting in high maintenance costs, which seriously affects the troubleshooting, maintenance, and restricts the guarantee of efficient acquisition technology. In order to facilitate the troubleshooting and maintenance of the vibrator electric controller, this paper introduces the vibrator hydraulic servo simulator designed and developed based on sensors characteristics of the hydraulic system and the latest standard patch devices. It has the advantages of small structure, simple operation and stable operation.

The western exploration area is rich in oil and gas resources and has great exploration potential. The desert pushing road is the foundation and important step of geophysical exploration in the western exploration area. The traditional bulldozer operation involves many processes, which requires the close cooperation between the surveyor and the bulldozer driver. It is necessary to do a good job in the connection of the three processes of measurement, road pushing and measurement. The measurement is frequently lofted and staked out, with high labor intensity, many users, long production cycle and high cost. Through the study of high - precision navigation technology and positioning technology, a navigation and positioning system for bulldozer stakelessconstruction is developed. It can be used to improve the overall operation efficiency, save the process connection, reduce the time of waiting for each other, reduce the number of mechanical work and mechanical leveling, optimize the utilization of equipment, reduce the process and reduce the marking wear of the flag, reduce the on - site construction personnel, reduce the risk of operation and construction, assist the driver to complete the bulldozing operation accurately and efficiently, reduce the consumption input and complete more workload, save equipment rental, oil consumption, labor cost and material cost, promote the bulldozing operation from manual guidance to mechanical independent guidance, and improve the level of bulldozing operation. It is of great significance to realize the stakeless construction of bulldozer.

With the gradual application of a certain model of node equipment in seismic exploration and acquisition operations, various fault problems continue to emerge. Researchers continue to make optimization and improvement, and various problems gradually obtain corresponding solutions. Only the “red cabinet phenomenon” generated by “tricky stations” has always been a difficult problem in maintenance work. This article takes this as a starting point to briefly analyze the causes of the “tricky station” fault and the principle of the “red cabinet phenomenon”. By analyzing the circuit and based on the basic characteristics of the voltage follower, a new “red cabinet” solution is proposed. This plan can effectively isolate the influence of “tricky stations” on the collection index testing of other stations without changing the original test results of the station, so that the “red cabinet phenomenon” no longer occurs.

In order to achieve high precision(cm level)petroleum geophysical survey,the study of geodetic elevation datum knowledge,especially the development history and latest development trend of international geodetic elevation datum,the establishment of geodetic elevation system in China,and the development history and latest progress of Chinese quasi-geoid model are studied.Four commonly used methods for obtaining abnormal elevation of petroleum geophysical survey are summarized,and six problems existing in the process of obtaining normal and high accuracy of petroleum geophysical survey are found and put forward.Finally,suggestions for improving normal and high accuracy of petroleum geophysical survey are put forward,aiming at attracting more practitioners and experts in the petroleum geophysical survey industry to reach consensus and attach great importance to it.Achieve high precision(centimeter level)normal height measurement results as soon as possible.

eSeis Neo is a new nodal instrument developed by BGP to meet the growing demand for high - precision seismic prospecting on land, has been applied on a large scale in several prospecting areas in China. In the manufacture of node instruments, soldering defects will seriously affect the normal charging and data downloading. Aiming at the shortcomings of the node instrument's low soldering efficiency and poor soldering quality in manual soldering, an automatic soldering technique combining advanced machine vision and motion control is proposed in this paper. The manufacturing practice of eSeis Neo node instrument shows that this technology has the characteristics of high soldering efficiency and good soldering consistency, and has good application effect.