Accurate wellhead time acquiring method and device for explosion machine

Application Number: 00107474
Application Date: 2000.05.18
Publication Number: 1325030
Publication Date: 2001.12.05
Priority Information:
International: G01V1/40
Applicant(s) Name: Zhongyuan Oil Field Branch, China Petrochemical Corp., Ltd.
Inventor(s) Name: Peng Shulin;Zhao Wenwei;Wang Lixin
Patent Agency Code: 41108
Patent Agent: wan long
Abstract The method for obtaining accurate shot hole-time of explosion machine in seismic exploration includes the following steps: using three or more than three uphole detectors to receive artificial seismic wave shooted by downhole explosion, feeding seismic signal outputted by several detectors into explosion machine by means of conductor to make signal regulation and conversion, using computer software to make real-time analysis to obtain explosion time of detonate-tube and first break time of every detection point, and calculate the short hole-time and depth value of explosion point, at the same time storing related data. Said invention can be effectively used for high-accuracy static correction seismic information treatment.