Schlumberger Technology Corporation

Westerngeco L.l.p.

Francis Maissant

Masahiro Kamata

Harvey Ray Grimes

Jean-Michel Hache

Gunnar Andreas Lindeman

Anders Falke Roeraas

Jon Mangus Soerli

Roar Stenhaug

Kenneth Pedersen

Raymond R Ness, Jr

Methods and systems for determining coil eccentricity of seismic sensors configured or designed for use in seismic signal detection. A direct electrical current is applied to a moving coil of a seismic sensor such that the moving coil is dislocated from a neutral position relative to the magnetic field in the seismic sensor. A predetermined indicator is measured and eccentricity of the coil (&#x3b4;) relative to the center of the magnetic filed is determined using the predetermined indicator.

Methods and systems for seismic sensors

An example of a cable positioning mechanism for directing a cable into a seismic sensor housing for connection with the seismic sensor includes a member sized to connect with a seismic sensor housing, the cable passing through the member at opposing anchor points for operational connection to the seismic sensor between the anchor points, wherein the cable is oriented through the member at an angle that is not perpendicular to a vertical axis of the sensor housing.

Seismic sensor housing

A sensor assembly includes a seismic sensor element and a shell. The shell at least partially surrounds the sensor element to shield the sensor element from a magnetic field that is generated outside of the shell.

Sensor assembly

Growing community of inventors

Oslo, Norway

Francis Maissant