Shell Oil Comapny

Guido Jozef Maria Baeten

Steven James Maas

Johan Cornelis Hornman

Ying Ji

Zijian Tang

Grant Slack Irwin

Simultaneous sources are separated with a deblending method wherein the fullband data deblended on a source-by-source basis. The fullband data is first decomposed into multiple subbands, and then a non-equispaced subband Radon transform is used to transform the decomposed data into the Radon domain. The deblending process is solved subband by subband by minimising a nonlinear objective function. The solution of the nonlinear objective function is found using a multi-step procedure.

Method and system for separating blended seismic data

A system and method for handling seismic cable having sensor stations thereon is provided. The seismic cable is positionable about the seismic field for measuring seismic parameters of a subsurface structure. The system includes a mobile unit, a reel and a winch assembly. The mobile unit is positionable about the seismic field, and has a platform. The reel is supportable on the platform with the seismic cable disposable about the reel. The winch assembly is carried by the mobile unit and includes a plurality of cable guides. At least one of the cable guides has a passageway with an adjustable dimension for aligning and guiding the seismic cable and the sensor stations passing therethrough.

Seismic cable handling system and method

A method and system are disclosed for performing seismic surveys using a seismic vibrator, which generates a sweep signal with enhanced low frequency content by generating a combination of a linear and nonlinear sweep and wherein the nonlinear sweep s(t) as a function of time (t) is calculated by a predetermined algorithm.

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Rijswijk, Netherlands

Guido Jozef Maria Baeten