一种利用阻抗值检查检波器倾斜度的方法
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摘要
在海外某项目进行ISSN(使用无线节点的独立同步高效采集技术)可控震源地震采集项目时,使用节点外接检波器接收地震信号,由于节点不能像有线仪器那样检查排列中检波器埋置的倾斜度,不能直接对检波器的埋置状况进行监控,因此,无法对排列进行实时监控,失去了对野外检波器埋置情况的质控,也就无法保证检波器的采集质量。本文介绍了一种通过使用节点检测设备检测到的检波器阻抗值,依据通过实验建立的一套阻抗范围确定检波器倾斜度状态的模型参数,找出检波器埋置状况与阻抗的对应关系,作为检查检波器埋置状况的方法。同时,对不同温度下的阻抗进行了检控测试,确立了适应该工区的不同温度段的阻抗门槛,在生产中得到了很好的应用。
Node connected with geophone is used for seismic receiving in overseas vibroseis ISSN 3D project.The node is unlike the cable seismic recording system which can test the tilt of geophone to monitor the planting quality.One kind of method to check the tilt condition is introduced through analyzing the geophone impedance value which recorded by the node test equipment(Line viewer).A tilt model is built which corresponding to the different impedance values.The impedance value vary with the temperature is tested as well during tilt modeling so as to the thresholds are defined for the field production.An actual example is shown for the method application.
Node connected with geophone is used for seismic receiving in overseas vibroseis ISSN 3D project.The node is unlike the cable seismic recording system which can test the tilt of geophone to monitor the planting quality.One kind of method to check the tilt condition is introduced through analyzing the geophone impedance value which recorded by the node test equipment(Line viewer).A tilt model is built which corresponding to the different impedance values.The impedance value vary with the temperature is tested as well during tilt modeling so as to the thresholds are defined for the field production.An actual example is shown for the method application.
引文
1吕公河.地震勘探检波器原理和特性及有关问题分析.石油物探,2009(6)
2段亚玲等.地震检波器参数随温度变化的规律分析.物探装备,2011(6)
2段亚玲等.地震检波器参数随温度变化的规律分析.物探装备,2011(6)
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