Open AccessCOMPENSATION OF NON-SYNCHRONICITY OF RECORDS FOR DOWNHOLE MICROSEISMIC MONITORING SYSTEMS IN CASE OF VTI MEDIA ANIZOTROPY
Author(s) -
Sergey Yaskevich,
Anton Duchkov
Publication year - 2019
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2019-2-3-102-107
Subject(s) - synchronization (alternating current) , computer science , asynchronous communication , microseism , synchronicity , real time computing , inversion (geology) , asynchrony (computer programming) , compensation (psychology) , key (lock) , time synchronization , data synchronization , telecommunications , geology , seismology , computer network , psychology , channel (broadcasting) , philosophy , computer security , wireless sensor network , epistemology , psychoanalysis , tectonics
Downhole microseismic monitoring sometimes includes the installation of several downhole surveillance systems. One of the key hardware requirements is accurate synchronization of the records received. Usually this problem is solved at the hardware level, and in the case of ideal observations, additional correction procedures are not required. In some cases, hardware synchronization is lost, and for the correct use of the observed data, it is necessary to compensate for the shift in synchronization; this compensation is also necessary when synchronization information is lost during data storage and transmission. In this paper, we propose to introduce into inversion an additional parameter responsible for asynchronous recordings and to show that in the case of a simple medium model, this asynchrony can be determined directly from the data. Here we also investigate the dependence of the accuracy of determining synchronization shifts depending on the complexity of the media and the geometry of the observation system.