Van Groenestijn
Gert-Jan A. Van Groenestijn, Voorschoten NL
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20130242696 | PRIMARY ESTIMATION ON OBC DATA AND DEEP TOW STREAMER DATA - Method for correcting OBC or deep-towed seismic streamer data for surface-related multiple reflections. The measured pressure data, preferably after conditioning ( | 09-19-2013 |
Gert-Jan A. Van Groenestijn, Houston, TX US
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20130301387 | Redatuming Seismic Data with Correct Internal Multiples - Method for redatuming seismic data to any arbitrary location in the subsurface in a way that is consistent with the internal scattering in the subsurface. Direct arrival times are estimated from every point to every point on the edges of a virtual box in the subsurface ( | 11-14-2013 |
Gert-Jan Adriaan Van Groenestijn, Voorschoten NL
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20150185342 | METHODS AND SYSTEMS FOR CONSTRAINING MULTIPLES ATTENUATION IN SEISMIC DATA - Systems and methods for attenuating multiples in seismic data are presented. In one aspect, predicted surface-related multiples are calculated for seismic data generated by receivers in a marine survey. Estimates of primaries and multiples may be calculated by applying adaptive subtraction to the predicted surface-related multiples. Residual multiples present in the estimated primaries may be identified using multiple diffraction reduction. The residual multiples and estimated multiples are used to generate final estimated multiples that are subtracted from the seismic data to generate primaries with attenuated multiples. | 07-02-2015 |
Gert-Jan Adriaan Van Groenestijn, Leiden NL
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20150362608 | COMBINED INTERPOLATION AND PRIMARY ESTIMATION - A method for combined interpolation and primary estimation can include performing a plurality of interpolations on received seismic data, performing a plurality of primary estimations on the received seismic data, and performing a combination of interpolation and primary estimation. Performing the combination can include generating reestimated primaries via a second primary estimation with input of a second interpolation, where output of the first primary estimation is input to the second interpolation. | 12-17-2015 |
Johannes Wouterus Van Groenestijn, Apeldoorn NL
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20100015680 | PROCESS FOR THE PRODUCTION OF BIOGAS - The invention relates to a process for the production of biogas from biomass, in particular from lignocellulose-containing biomass. According to the invention bio gas is produced from lignocellulose-containing biomass in a process, wherein the cellulose and hemicellulose in the lignocellulose are made accessible for bioconversion. | 01-21-2010 |
20110003328 | SYSTEM FOR DETECTING MICROBIAL CONTAMINATION - The present invention relates to a system for detecting microbial contamination of a liquid specimen comprising a device for concentrating micro-organisms from a liquid specimen, having (i) a hypobaric chamber, (ii) a filter housing comprising a liquid-permeable bed of an adsorbent material and adapted for being fluidly connected to said hypobaric chamber, and (iii) a vacuum pump adapted for being fluidly connected to said hypobaric chamber, said system further comprising a kit for detection of micro-organisms adsorbed to said adsorbent material, wherein said kit is based on enzymatic detection using chromogenic and/or fluorescent substrate analogues. | 01-06-2011 |
20110033881 | SYSTEM FOR DETECTING MICROBIAL CONTAMINATION - The present invention relates to a system for detecting microbial contamination of a liquid specimen comprising a device for concentrating micro-organisms from a liquid specimen, having (i) a hyperbaric chamber, (ii) a filter housing comprising a liquid-permeable bed of an adsorbent material and adapted for being fluidly connected to said hyperbaric chamber, and (iii) a means for pressurizing said hyperbaric chamber, said system further comprising a kit for detection of micro-organisms adsorbed to said adsorbent material, wherein said kit is based on enzymatic detection using chromogenic and/or fluorescent substrate analogues. | 02-10-2011 |
20120282660 | NOVEL METHOD FOR PROCESSING LIGNOCELLULOSE CONTAINING MATERIAL - The invention is related to a method for processing biomass derived from plants or animals, comprising the steps of: | 11-08-2012 |