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25 June 2025, Volume 35 Issue 3
    

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    SPECIAL AND COMPREHENSIVE SUBJECTS
  • Research and application of adhocnetwork for intelligent seismic operation area.
    YI Changhua, HAN Shanfeng, MENG Qingfu, REN Jun , ZHANG Zhixia.
    Equipment for Geophysical Prospecting. 2025, 35(3): 141-144,152.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    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.
  • Analysis on impedance matching of seismographs.
    CHENG Xinxun, HUANG Lei, HE Qiongying, YU Siwen , WEI Wang.
    Equipment for Geophysical Prospecting. 2025, 35(3): 145-148.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    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.
  • Design and development of navigation and positioning system for bulldozer stakelessconstruction.
    XIA Yanhai, DU Qinghuai, LIU Jinping, REN Ligang , YU Sujun.
    Equipment for Geophysical Prospecting. 2025, 35(3): 149-152.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    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.
  • Discussion on the application of GNSS online data processing service on international seismic exploration projects.
    CHAI Junbing, LI Yonghai, SU Hang, XU Yongan , SHI Kuanglin.
    Equipment for Geophysical Prospecting. 2025, 35(3): 153-157.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    During the construction process of international oil exploration projects, some projects need to establish independent coordinate systems. In addition, the current high - efficiency exploration and acquisition projects need to adopt global high - precision real - time satellite station differential services to improve the acquisition efficiency, and the coordinate system of the control point needs to be consistent with the real - time satellite station differential results to minimize the impact of different coordinate systems. How to choose the precision single - point positioning online processing service for international projects has become a problem for international oil exploration projects. This paper describes in detail the data requirements and output results of four online processing services, namely, CSRS, AUSPOS, RTX and OPUS, which are often used in international projects. The data of international oil exploration projects at different times, different locations and different acquisition durations are sent to the four online services for processing, and the results show that the processing results of CSRS, AUSPOS, and RTX are more consistent, and the results are more consistent with those of AUSPOS, RTX, and AUSPOS. AUSPOS, RTX and CSRS have latitude and longitude rms (root - mean - square error) less than 0.0003 s and elevation rms error less than 0.030 m, OPUS processing results are more different from the other three, with latitude, longitude and elevation rms errors of 0.00038 s, 0.00051 s and 0.124 m, respectively. In the construction of the international project, it is necessary to take into account the reference frame, calendar elements, results reporting, timeliness and other factors, result reporting, timeliness and other factors, choose one of CSRS, AUSPOS and RTX, and OPUS results are not recommended.
  • The application of electronic fence based on satellite positioning in dynamite excitation.
    ZHANG Zuan, CUI Hongying, YAO Chen, HE Qiongying , LI Zingwei.
    Equipment for Geophysical Prospecting. 2025, 35(3): 158-161.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    With the wide application of satellite positioning technology, real - time satellite positioning and safe distance threshold between operator and drilling are used in dynamite seismic exploration, which effectively form an electronic fence of safe excitation distance. The setting of electronic fence (explosive area and non - explosive area) in the command center of unqualified excitation mode can effectively avoid the bad shot caused by incomplete collection arrangement or appointment quality control. Electronic detonator used in dynamite excitation has an electronic fence (explosive zone and no - explosive zone) in detonation password, which further controls the risk during the use of the detonator. This paper reviews the application principle and method of electronic fence in dynamite excitation, and brieflyintroduces the setting method of electronic fenceof electronic detonator.
  • Discussion on time efficiency statistics for seismicvibrator.
    WANG Wanxin, WANG Nan, LIU Yihan, LIU Yaxin , LIANG Bing.
    Equipment for Geophysical Prospecting. 2025, 35(3): 162-166.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    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.
    • EXPERIENCE AND DISCUSSION
  • Integrated navigation and positioning technology in ROV node exploration projects.
    SHE Hang, XU Yuchao, FANG Shouchuan, QIN Xuebin , HE Wenwei.
    Equipment for Geophysical Prospecting. 2025, 35(3): 167-171.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    With the increasing importance of deep - sea oil and gas exploration, ROV (Remotely Operated Vehicle) operations rely heavily on integrated navigation and positioning systems. This paper introduces the working principles and applications of key components such as INS, USBL, DVL, and GNSS in deepwater ROV OBN projects, and explores future development trends in smart navigation technologies.
  • An insight into improving the effectiveness of metamorphic rock excitation in seismic surveys.
    WANG Guozhong, JIANG Baogang, YANG Biao, CHEN Zhi, CHU Bao.
    Equipment for Geophysical Prospecting. 2025, 35(3): 172-173,181.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    Metamorphic rocks, limestone and other rocks are dense and hard. The signal - to - noise ratio of seismic data obtained from these rocks is extremely low. Research has been conducted on this situation to identify the main causes. Ideas are proposed for breakthroughs in well - sealing materials, interval loading, shaped charge blasting, and reverse explosion.
  • Application of Iperf test tool in Gunlink4000.
    ZENG Meng.
    Equipment for Geophysical Prospecting. 2025, 35(3): 174-176.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    GunLink4000 gun control system will generate a large amount of data in the production operation, and these data must be transmitted through the GunLink4000 network system, and the GunLink4000 network system will sometimes fail to cause data loss. In this paper, the author discusses how to use the network performance test tool Iperf to test the network system of GunLink4000, and gives the detailed steps and test indicators of the test. Thus, the cause of the failure can be quickly found in the actual production, or the pre - test can be carried out before production to ensure the smooth flow of the system network and ensure the smooth start of production.
  • Analysis of the effect of area and tooth shape on the coupling of shear wave seismic vibratorbaseplate.
    HAO Lei, LIU Zhigang, LYU Jianghai, SONG Xiaowei, FAN Jiarui.
    Equipment for Geophysical Prospecting. 2025, 35(3): 177-181.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    The bandwidth of the shear wave seismic vibrator on the soft surface is closely related to the coupling degree between the shear wave seismic vibrator baseplate and the surface, and bandwidth of the shear wave seismic vibrator can be improved by increasing the coupling degree between the baseplate and the soft surface. In this paper, two evaluation criteria were proposed for the coupling degree between the baseplate and the ground surface by analyzing the system transfer function of the seismic vibrator. And then base on these two criteria, three factors affecting the coupling degree between the shear wave seismic vibrator baseplate and the soft surface are analyzed, including the hold - down pressure, baseplate area and tooth shape, and the influence degree of the three factors on the coupling is obtained. Base on the above research, the optimization of shear wave seismic vibrator baseplate has been carried out. After optimization, the frequency bandwidth of shear wave seismic vibrator on the soft surface has been significantly improved, which providing a reference for the development of shear wave seismic vibrator.
  • Research on wireless ad hoc network application technology.
    QI Xiaolong.
    Equipment for Geophysical Prospecting. 2025, 35(3): 182-184.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    With the rapid development of wireless ad hoc network technology, A new type of wireless network technology - wireless ad hoc network, Gradually developing and maturing, Mainly including mesh self - organizing networks, as well as wide and narrowband self - organizing networks. Mesh ad hoc network technology can realize rapid networking, multi - hop relaying and intelligent monitoring in forest fire prevention and control. It is also widely used in fire protection, providing reliable communication solutions. In fire rescue communication, wide - narrow band ad hoc network technology can extend signals through narrow band to ensure smooth voice communication. In the rescue scene of major natural disasters, by combining and erecting ad hoc network base stations in various ways, an emergency network is constructed and communication coverage is realized. This paper deeply discusses the application of Mesh ad hoc network technology and wide - narrow band ad hoc network technology in wireless ad hoc network technology, and prospects for future development directions.
  • The application of ultra - short base line positioning technology in OBN exploration.
    CAO Shuwei, WU Shaoyu, QIN Xuebin, QIAO Yongjie , WANG Guoqin.
    Equipment for Geophysical Prospecting. 2025, 35(3): 185-188.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    Ultra - short baseline acoustic positioning technology is a real - time underwater acoustic positioning and tracking technology. Its working principle is to measure distance by calculating the transmission time of sound waves. It comprises a sound array made up of multiple densely packed acoustic receivers and use phase measurement techniques to determine horizontal and vertical angles, thereby pinpointing the relative position of a target with respect to the acoustic transducer. Additionally, by integrating DGPS position data, orientation device azimuth data, and the relative positional offset between the acoustic transducer and the DGPS antenna, the actual position of the transducer is calculated in real - time. Ultimately, the actual position of the underwater target is derived through calculations involving the relative azimuth, vertical angle, and distance between the transducer and the underwater target, enabling real - time positioning and tracking of underwater targets. This technology has been widely applied in various fields, such as underwater robotic diving operations, real - time tracking of underwater vehicles, and monitoring the underwater positions of divers. In recent years, with the continuous expansion of the offshore oil exploration market, particularly the proliferation of the OBN (Ocean Bottom Node) exploration mode, ultra - short baseline acoustic positioning technology has been introduced into this domain. It is commonly used in the deployment and positioning of node equipment in offshore oil exploration, particularly in OBN exploration, and it has significantly improved the accuracy of node equipment deployment, increased the success rate of deployment, and played a vital role in determining the final position of ocean bottom node equipment and retrieving them. Based on the principles and characteristics of ultra - short baseline acoustic positioning technology, this article introduces and summarizes its application in OBN exploration from multiple aspects.
    • IT AND EQUIPMENT
  • Introduction and application of remote control technology for high pressure air system of air gun source.
    GAO Zhengrui, LI Haijun, WANG Hao, QU Chao , DU Xiu.
    Equipment for Geophysical Prospecting. 2025, 35(3): 189-192,198.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    The operation pressure of the high pressure air system of the air gun source is as high as 2000 psi, which contains huge energy and has the power of a stealth bomb, and once it is out of control or the high pressure air leaks accidentally, it will cause great injury or even the risk of death to the operator. In order to reduce and avoid the safety hazards caused by the high pressure air system to the operator, domestic and foreign companies have developed remote control technology of high pressure air system, such as automatic condensate drain technology, remote control of high pressure air manifolds, etc., which realizes unmanned high pressure air system control site and remote visualization of the application effect, ensures the safety of the operators, and has won the recognition of the major oil companies in the world, and meets the more and more demanding requirements of HSE audits. In this article, the composition, function and remote control technology and application of high pressure air system of air gun source are elaborated in detail.
  • Study on statistical quality control of surface elements for seismic exploration of marine streamers.
    YAN Jiachen, ZHANG Haonan, RUAN Fuming, CUI Shifeng , ZHANG Shaopeng.
    Equipment for Geophysical Prospecting. 2025, 35(3): 193-198.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    The statistics of surface element foldtimes is one of the important means to monitor the acquisition quality of marine seismic exploration and guide the line complement operation. This paper draws on the two - dimensional statistical method of fold on land and combines the actual operations at sea to propose a statistical algorithm of foldtimes with de - duplication in offset plane. In view of the doubling of data volume caused by the development of high - density and refined acquisition, the performance of the calculation process is optimized, CPU utilization efficiency is improved and memory usage is reduced by 7/8. Finally, a practical work area in the South China Sea was taken as an example for testing and verification. The statistical result of foldtimes in the same cell was 97% consistent with that of foreign third - party software, which was comparable to that of foreign software in terms of analysis, calculation and practical efficiency. It shows that the calculation method and performance optimization results in this paper meet the quality control requirements of offshore seismic exploration
  • Application of electronic detonator in seismic exploration.
    PIAO Jinshan.
    Equipment for Geophysical Prospecting. 2025, 35(3): 199-202.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    The according to the Ministry of Industry and Information Technology claimed comprehensive implementationof the industrial detonator upgrading to electronic detonator. The electronic detonator will be fully applied in theseismic exploration projectsafter a brief transition period. Compared with the electric blasting cap, the safety issues of electronic detonator have the nature of ascension, and the Police Department can realize the full life - cycle control of electronic detonator. However, the structure and blasting mechanism of electronic detonator are completely different, you need to understand the difference of the structure, blasting mechanism, excitation flow, initiating management between electronic detonator and electric blasting cap in detail, if you want to use the electronic detonators in exploration projects. At the same time, the electronic detonator uses the initiating detonation instruction to control ignition, but the different manufacturer adopts different framework design which leads to the different delay time. This paper also introduces the composition and test methods of the control system delay timein detail.
    • LEARNERS FIELD AND READERS LETTER BOX
  • A study of the coil moving method for evaluating the critical characteristics of geophone.
    LI Bingbing, WANG Weihui, WANG Fei, WANG Shan , ZHENG Jimei.
    Equipment for Geophysical Prospecting. 2025, 35(3): 203-206.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    The moving - coil analog geophone is located at the front of the seismic acquisition system and is used to receive seismic signals. Accurate evaluation of key characteristics of geophone is very important to improve the quality of seismic data. The traditional method to evaluate the reliability and inclination performance of geophone is to use tumble and manual inclination, which has problems such as low test efficiency and poor operability. This paper describes in detail the definition of geophone distortion, continuity and the influence of coil position on distortion. In view of the problems in traditional methods, the evaluation methods of two key characteristics of geophone reliability and inclination performance are mainly studied. By adding variable DC voltage to the excitation signal of the geophone tester to simulate the coil position change of geophone inclination or tumble. The reliability and inclination performance of the geophone can be evaluated according to the distortion change of several positions of coil in the range of motion.
  • Exploration and realization of efficient excitation control technology in OBN exploration.
    CHEN Chuanguang, LIU Yuankun, LI Mo, ZHANG Zhixia , ZHANG Jianxin.
    Equipment for Geophysical Prospecting. 2025, 35(3): 207-210.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    In marine seismic exploration, efficient excitation control technology is the key to improve data quality and exploration efficiency. With the deepening of offshore oil and gas resources exploration, how to optimize the excitation of seismic sources in order to obtain higher quality seismic data and improve the exploration efficiency has become the focus of research. In this paper, we introduce in detail the current mainstream efficient excitation operation modes and their control technologies in the integrated navigation system, focusing on the unique features and significant advantages of the Dolphin integrated navigation system in multi - vessel synchronized source excitation and single - vessel multi - source sequential excitation control. Through case studies of actual projects, it is demonstrated that the Dolphin integrated navigation system has achieved significant results in improving exploration construction efficiency and productivity, including reducing operation time, improving data accuracy and reducing exploration costs. These results demonstrate the importance of efficient excitation control technology in modern marine seismic exploration and its wide application prospects in the future.
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