초록 ▼

A method and device for seismic exploration of an underwater subsurface zone using seismic receivers coupled with the bottom of the water mass. Acquisition units (1) comprising a spire (2) where seismic receivers (4) are arranged, a measuring compartment (5) for acquisition and storage of the data r

A method and device for seismic exploration of an underwater subsurface zone using seismic receivers coupled with the bottom of the water mass. Acquisition units (1) comprising a spire (2) where seismic receivers (4) are arranged, a measuring compartment (5) for acquisition and storage of the data received by the receivers, as well as removable and selective floating devices (7) are used. The acquisition units (1) are launched and, under the effect of gravity, they attach to the bottom and couple the receivers with the underlying formations. The respective positions thereof are first detected, seismic acquisition operations are carried out using an underwater source so as to collect seismic data on the formation, then the floating devices (7) are actuated so as to bring all or part of acquisition units (1) back up to the surface or a data collection device (vehicle or passive collection unit) is lowered to the neighbourhood of the various units.

대표청구항 ▼

A method and device for seismic exploration of an underwater subsurface zone using seismic receivers coupled with the bottom of the water mass. Acquisition units (1) comprising a spire (2) where seismic receivers (4) are arranged, a measuring compartment (5) for acquisition and storage of the data r

A method and device for seismic exploration of an underwater subsurface zone using seismic receivers coupled with the bottom of the water mass. Acquisition units (1) comprising a spire (2) where seismic receivers (4) are arranged, a measuring compartment (5) for acquisition and storage of the data received by the receivers, as well as removable and selective floating devices (7) are used. The acquisition units (1) are launched and, under the effect of gravity, they attach to the bottom and couple the receivers with the underlying formations. The respective positions thereof are first detected, seismic acquisition operations are carried out using an underwater source so as to collect seismic data on the formation, then the floating devices (7) are actuated so as to bring all or part of acquisition units (1) back up to the surface or a data collection device (vehicle or passive collection unit) is lowered to the neighbourhood of the various units. housing, a plane of the motherboard does not coexist with the slot plane. 19. The structure of claim 18, wherein an offset between the slot plane and the plane of the motherboard is selected to divert a chosen airflow volume. 20. A structure for housing a plurality of electronic components that are intercoupled to support communications, the structure comprising: a housing that is adapted to receive a plurality of circuit boards; a cooling fan module that produces a cooling airflow within the housing; two pairs of slots disposed within the housing substantially equidistant from the housing walls, the two pairs of slots to receive a pair of circuit boards; and a pair of circuit boards, each of the circuit boards including: a first plurality of components that reside upon a first surface of the circuit board and that produce a first heating amount; a second plurality of components reside that upon a second surface of the circuit board and that produce a second heating amount; a pair of elongated guides, a first elongated guide of the pair of elongated guides affixed to a first side of the circuit board and a second elongated guide