In response to the synchronization performance requirements in high-pressure air-gun arrays,the com-position principle,synchronization control principle,and synchronization performance influencing factors of the air-gun seismic source system are introduced.It elaborates in detail on the control of the excitation circuit in the air-gun array on the excitation time of the electromagnetic valve,and the synchronization control method of the high-pressure air-gun array under the intervention of the variable delay control circuit.A method for conducting synchronization performance experiment tests under laboratory conditionis proposed.Taking a 150 in3 high-pres-sure air-gun for an example,a synchronization performance testing system for high-pressure air-guns under labo-ratory environment is established,and 20 consecutive sets of test data are obtained.Throughanalysis,it can be concluded that the time deviation of its excitation is within±0.498 ms,which meets the requirements of explora-tion synchronization,has good excitation consistency,stable operation of the air-gun,and can be used for the con-struction of air-gun arrays.
关键词
高压气枪/实验室条件/同步性能/测试方法
Key words
high pressure air-gun/laboratory condition/synchronous performance/experiment method
维普
万方数据