Seismic sensor
AssigneeWesternGeco L.L.C.
InventorsDidier Dominguez, Irene Gabler, Jacques Orban
Life of this patent
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Abstract
A seismic sensor contains a geophone (4) disposed within a housing (12). The sensor is also provided with locking means (14, 19, 21) that can either lock the geophone 4 relative to the housing, or can allow the geophone to rotate within the housing. The geophone (4) is enclosed in a casing (1) which is so constructed that the overall mass distribution of the casing and geophone is uneven. The casing and geophone assembly thus adopts a preferred orientation when the sensor is unlocked. A liquid can be disposed within the housing, so that the casing (1) and geophone (4) can float when the sensor is unlocked.
Claims8
A seismic sensor comprising:
- a housing;
- a geophone rotatably mounted within the housing;
- and
- a locking means for releasably preventing movement of the geophone relative to the housing, the locking means being movable between a first position in which it exerts a locking force on the geophone so as to prevent movement of the geophone relative to the housing and a second position, and the locking means providing an electrical connection to the geophone when the locking means is in the first position.
Dependencies are inferred from the claim text.