公开(公告)号：US20170068005A1

公开(公告)日：2017-03-09

申请号：US15356844

申请日：2016-11-21

申请人： CGG SERVICES SAS

发明人： John SALLAS ,  Thierry AMEIL ,  Robert DOWLE ,  Dominique THOMAS

IPC分类号： G01V1/04 ,  G01V1/18 ,  G01V1/155 ,  G01V1/135 ,  G01V1/143 ,  G01V1/38

CPC分类号： G01V1/04 ,  G01V1/135 ,  G01V1/143 ,  G01V1/145 ,  G01V1/155 ,  G01V1/188 ,  G01V1/38 ,  G01V2210/1293

摘要： Method, source array and source element that generate seismic waves. The source element includes an enclosure having an opening covered by a piston; a local supply accumulator fluidly communicating with an interior of the enclosure, a pressure of the fluid inside the local supply accumulator being larger than a pressure of the fluid inside the enclosure; a local supply valve located between the local supply accumulator and the enclosure and configured to control a flow of the fluid from the local supply accumulator to the interior of the enclosure; and a controller configured to control the local supply valve such that the pressure inside the enclosure does not fall below a first preset value based upon an ambient pressure of the enclosure while seismic waves are generated.

摘要翻译： 方法，源阵列和源元素，产生地震波。 源元件包括具有被活塞覆盖的开口的外壳; 与外壳内部流体连通的局部供应储液器，局部供应储液器内部的流体的压力大于外壳内流体的压力; 位于本地供给蓄电池和外壳之间并配置成控制流体从本地蓄电池到外壳内部的本地供应阀; 以及控制器，其被配置为控制所述局部供应阀，使得在产生地震波的同时，基于所述外壳的环境压力，所述外壳内的压力不会低于第一预设值。