发明名称 |
METHOD AND SYSTEM FOR PNEUMATIC CONTROL FOR VIBRATOR SOURCE ELEMENT |
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. |
申请公布号 |
US2014238773(A1) |
申请公布日期 |
2014.08.28 |
申请号 |
US201414172004 |
申请日期 |
2014.02.04 |
申请人 |
CGG SERVICES SA |
发明人 |
SALLAS John;AMEIL Thierry;DOWLE Robert;THOMAS Dominique |
分类号 |
G01V1/155 |
主分类号 |
G01V1/155 |
代理机构 |
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代理人 |
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主权项 |
1. A source element for generating seismic waves in water, the source element comprising:
an enclosure having an opening covered by a piston, wherein the piston is configured to move relative to the enclosure to generate the seismic waves; a local supply accumulator fluidly communicating with an interior of the enclosure, wherein the local supply accumulator stores a fluid that is also present inside 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. |
地址 |
Massy Cedex FR |