公开(公告)号：US20170102469A1

公开(公告)日：2017-04-13

申请号：US15388081

申请日：2016-12-22

Applicant: CGG SERVICES SAS

Inventor： Laurent RUET ,  Robert DOWLE ,  Benoit TEYSSANDIER

IPC: G01V1/135

CPC classification number: G01V1/135 ,  G01V1/005 ,  G01V1/133 ,  G01V1/143 ,  G01V1/38 ,  G01V13/00 ,  G10K11/18 ,  Y10T29/49005 ,  Y10T29/49826

Abstract: A method for generating acoustic waves under water includes actuating first and second pistons with an actuator system provided inside an enclosure of a source element, to generate a wave having a first frequency, and actuating the first and second pistons with a pressure mechanism attached to the enclosure, to control a pressure of a fluid inside the enclosure such that a pressure of the fluid is substantially equal to an ambient pressure of the enclosure. The enclosure has first and second openings and the first and second pistons are configured to close the first and second openings.

公开(公告)号：US20170343688A1

公开(公告)日：2017-11-30

申请号：US15322187

申请日：2015-07-01

Applicant: CGG SERVICES SAS

Inventor： John SALLAS ,  Robert DOWLE

IPC: G01V1/137

CPC classification number: G01V1/137 ,  G01V1/145 ,  G01V1/38 ,  Y02A90/36

Abstract: A method and source element for generating seismic waves in water. The source element includes a housing having an opening; an acoustic piston closing the opening; an actuating mechanism located inside the housing and configured to actuate the acoustic piston; and a decoupling mechanism interposed between the acoustic piston and the actuating mechanism. The decoupling mechanism allows the acoustic piston to move substantially independent of the actuating mechanism for a first frequency range.

公开(公告)号：US20170068005A1

公开(公告)日：2017-03-09

申请号：US15356844

申请日：2016-11-21

Applicant: CGG SERVICES SAS

Inventor： John SALLAS ,  Thierry AMEIL ,  Robert DOWLE ,  Dominique THOMAS

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

CPC classification number: G01V1/04 ,  G01V1/135 ,  G01V1/143 ,  G01V1/145 ,  G01V1/155 ,  G01V1/188 ,  G01V1/38 ,  G01V2210/1293

Abstract: 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.

Abstract translation: 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。