摘要
近年来,随着油气勘探程度的不断深入,国内各探区开展了一系列针对复杂地表、复杂地下地质目标的技术攻关,而以“两宽一高”为特征的大道数高精度物探技术是重要手段之一。在实际勘探作业过程中,由于实时带道能力、复杂地表适应性差等方面的限制,传统有线地震仪器已无法满足大道数、高效率和高质量地震数据采集的需求。新近出现的无缆式地震仪器采用的自主采集、数据本地存储工作方式可不受实时采集道数的限制,且能够很好地解决复杂地表区的排列布设难度大的问题,但无法实现采集数据的现场实时下载和质控,数据交付相对滞后。为突破传统使用单一类型地震仪器带来的效率和质量瓶颈,本文给出基于卫星授时的多类型地震仪器联合采集技术的工作原理、作业流程和技术关键点,并以渤海湾盆地冀中坳陷探区的某项目为例阐述该勘探作业新方式的技术优势和应用效果。最后,结合地震勘探需求对多类型地震仪器联合采集技术的应用前景进行了讨论和总结。
In recent years,a series of technical researches for complex surface and subsurface seismic geological conditions have been carried out with the deepening of oil and gas exploration in various exploration areas in China,and the high-precision physical prospecting technology characterized by“broadband and wide azimuth”is one of the important means.In the actual exploration process,the traditional cabled seismic instruments can no longer meet the demand for high-density,high-efficiency and high-quality seismic data acquisition due to the limitations of real-time acquisition capability and poor adaptability to complex ground surface.The new fashioned cableless seismic instruments can work independently and store data locally without the limitation of real-time acquisition channels,and they have a high deployment efficiency in complex surface areas.However,the cableless seismic instruments cannot realize the real-time data download and real-time QC,and has long data delivery cycle compared with cabled system.In order to break through the bottleneck brought by the traditional way of using single type instrument,this paper gives the working principle,operation process and technical key points of the hybrid acquisition technology based on satellite timing,and takes a project in Jizhong Depression exploration area of Bohai Bay Basin as an example to illustrate the technical advantages and application effects of this new exploration operation way.Finally,the prospect of the application of the hybrid acquisition technology of multi-type seismic instruments is presented in the context of seismic exploration requirements.
作者
夏颖
甘志强
杨茂君
黄磊
刘一帆
XIA Ying;GAN Zhiqiang;YANG Maojun;HUANG Lei;LIU Yifan
出处
《物探装备》
2024年第3期141-146,156,共7页
Equipment for Geophysical Prospecting
关键词
多类型地震仪器
联合采集
复杂区
卫星授时
multi-type seismic instruments
hybrid acquisition
complex zones
satellite timing
