Pgs Geophysical as

Westerngeco L.l.p.

Oeystein Traetten

Rune Sindre Voldsbekk

Mattias Oscarsson

Rune Toennessen

Rafael Ryberg

Øyvind Hillesund

Rune Tønnessen

Geir Andre Motzfeldt Drange

Eskild Storteig

Vidar Husom

Nils Halvor Heieren

Bengt Finnøen

Lars Boergen

Øyvind Teigen

A method of manufacturing a streamer section. The method includes coupling together a plurality of prefabricated harness modules. A harness module includes a plurality of geophysical sensors disposed along a length of the harness module and a sensor node communicatively coupled to the plurality of sensors. A first connector is disposed at a first end of the harness module and a second connector disposed at a second end of the harness module. The first connector is coupled to the sensor node and is configured to couple to a second harness module and receive data from a sensor node in the second harness module. The second connector is coupled to the sensor node and is configured to couple to a third harness module and forward data to a sensor node in the third harness module.

Streamer manufacturing

This disclosure is related to marine seismic sources, for example marine seismic sources known in the art as benders. Some embodiments of this disclosure use Lorentz forces to produce seismic energy. For example, magnets and wire coils may be attached to one or more plates of a marine seismic source, and the Lorentz interaction between them may cause deformation of the plates to produce seismic energy. Such marine seismic sources may be components of a marine seismic survey system, and may be used in a method of marine seismic surveying. Methods of making marine seismic sources are also disclosed.

Low-frequency lorentz marine seismic source

Low-frequency Lorentz marine seismic source

This disclosure is related to marine seismic sources, for example marine seismic sources known in the art as benders. Some embodiments of this disclosure use magnetic reluctance forces to produce seismic energy. For example, pole pieces may be attached to one or more plates of a marine seismic source, and a wire coil may induce an attractive force between the pole pieces to cause deformation of the plates to produce seismic energy. Such marine seismic sources may be components of a marine seismic survey system, and may be used in a method of marine seismic surveying. Methods of making marine seismic sources are also disclosed.

Low-frequency magnetic reluctance marine seismic source

An apparatus includes a streamer having one or more seismic data acquisition devices enclosed within a skin. The skin has a modulus of elasticity of at least 30 MPa to attenuate a flow noise.

Marine seismic streamer with increased skin stiffness

An apparatus includes a streamer having one or more sensor holders for retaining seismic sensors therein. The sensor holders have a reduced cross-sectional area to increase gel continuity and coupling through the streamer.

Seismic sensor holder and method

An apparatus includes a streamer having one or more sensor holders for retaining seismic sensors therein. A housing is disposed about a sensor with a gel-like material disposed between the housing and the sensor, thereby decoupling the sensor from its surroundings. The housing is disposed in the sensor holder and the streamer is filled with either liquid or another gel-like material.

Apparatus and method for decoupling a seismic sensor from its surroundings

A particle motion sensor, includes: a sensing element capable of sensing a particle motion vector from a change in position thereof, and a packing material in which the sensing element is positioned, wherein the particle motion sensor is symmetric about its longitudinal axis and has a center of gravity coincident with its volumetric center. An apparatus includes a streamer; a plurality of acoustic sensors distributed along the streamer; and a plurality of particle motion sensors distributed along the streamer, at least one particle motion sensor being symmetric about its longitudinal axis and having a center of gravity coincident with its volumetric center.

Growing community of inventors

Asker, Norway

Oeystein Traetten