{"id":26223,"date":"2024-02-21T11:35:51","date_gmt":"2024-02-21T10:35:51","guid":{"rendered":"https:\/\/nr.stage.dekodes.no\/en\/?post_type=bc_project&#038;p=26223"},"modified":"2025-06-13T10:28:06","modified_gmt":"2025-06-13T08:28:06","slug":"geophysical-inversion-to-geology","status":"publish","type":"bc_project","link":"https:\/\/nr.stage.dekodes.no\/en\/projects\/geophysical-inversion-to-geology\/","title":{"rendered":"A consortium for geological assessments of the seabed (GIG)"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"has-sizing-large\"><strong>Geophysical Inversion to Geology (GIG) is a research and development (R&amp;D) consortium developing<\/strong> <strong>algorithms to analyse seismic data and calculate the probability for detecting subsurface sedimentary rocks such as sand, shale and clay that are filled with water, oil or gas. These methods can also be applied for exploring and monitoring CO2 storage<\/strong>. <\/p>\n\n\n\n<p>GIG is led by NR and sponsored by the leading oil and gas (O&amp;G) exploration and production companies on the Norwegian Continental Shelf. <\/p>\n\n\n\t<div class=\"nr-spacer nr-spacer-small wp-block-nr-spacer\">\n\t<\/div>\n\t\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">GIG&#8217;s focus areas<\/h3>\n\n\n\n<p>Our research and development is focused on the following areas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Better and faster algorithms, especially considering alternative approximations that can increase performance without compromising performance,<\/li>\n\n\n\n<li>Tools for assessing the robustness of the inversion result and the geological prior model,<\/li>\n\n\n\n<li>4D seismic inversion by simultaneous inversion of several 3D seismic data sets,<\/li>\n\n\n\n<li>Include lateral links in the inversion process to better take into account lateral correlations in geology,<\/li>\n\n\n\n<li>More information from the inversion such as probability distributions of layer thicknesses, adjusted horizons with uncertainty and internal layering,<\/li>\n\n\n\n<li>More flexible and correct definition of the geological prior model.<\/li>\n<\/ul>\n\n\n\t<div class=\"nr-spacer nr-spacer-small wp-block-nr-spacer\">\n\t<\/div>\n\t\n\n\n<h3 class=\"wp-block-heading\">Sponsor benefits<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Access to reports, publications and developed methods since the project started in 2016<\/li>\n\n\n\n<li>User support and training in the methods being developed<\/li>\n\n\n\n<li>Help with special challenges related to inversion studies<\/li>\n\n\n\n<li>Influence on the research tasks and focus areas of the project<\/li>\n\n\n\n<li>Attend regular status meetings<\/li>\n\n\n\n<li>Attend annual meeting where budget and work plans are decided<\/li>\n\n\n\n<li>Access to the PCube application<\/li>\n\n\n\n<li>Continuous access to new methods that are being developed<\/li>\n\n\n\n<li>Bug fix<\/li>\n\n\n\n<li>Access to <a class=\"ek-link\" href=\"http:\/\/files.nr.stage.dekodes.no\/sand\/GIG\/\">internal webpage<\/a><\/li>\n<\/ul>\n\n\n\t<div class=\"nr-spacer nr-spacer-small wp-block-nr-spacer\">\n\t<\/div>\n\t\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"537\" src=\"https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2021\/02\/Logo-GIG-rgb.jpg-1024x537.jpg\" alt=\"GIG logo in black capitalised font. The visual logo is a black circle with grey markings illustrating a horizontal graph\" class=\"wp-image-10998\" style=\"width:278px\" srcset=\"https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2021\/02\/Logo-GIG-rgb.jpg-1024x537.jpg 1024w, https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2021\/02\/Logo-GIG-rgb.jpg-300x157.jpg 300w, https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2021\/02\/Logo-GIG-rgb.jpg-768x403.jpg 768w, https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2021\/02\/Logo-GIG-rgb.jpg.jpg 1181w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"562\" src=\"https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2024\/02\/gig-konsortiet.png\" alt=\"The image shows the logos of all our partners in the consortium. For a full list of partners, please see the project description. \" class=\"wp-image-34754\" style=\"width:700px\" srcset=\"https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2024\/02\/gig-konsortiet.png 1000w, https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2024\/02\/gig-konsortiet-300x169.png 300w, https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2024\/02\/gig-konsortiet-768x432.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\t<div class=\"nr-spacer nr-spacer-small wp-block-nr-spacer\">\n\t<\/div>\n\t\n\n\n<h4 class=\"wp-block-heading\">Our methods<\/h4>\n\n\n\n<p class=\"has-sizing-small\">The algorithms are based on Bayesian seismic inversion for quantitative interpretation of seismic data. GIG further develops and improves the algorithms known as PCube and PCube +.<\/p>\n\n\n\n<p class=\"has-sizing-small\">The seismic data are analyzed using Bayesian statistics that update the mathematical model of the subsurface so that it fits better with the seismic data. The updated model calculates the probability of the rocks at any point. In addition, it can calculate the depth of different depositional environments (horizons) and layer thicknesses (isochrons) of the rocks with an uncertainty. The methods can also be combined with rock models to calculate properties such as porosity, clay content and liquid saturation.<\/p>\n\n\n\n<p class=\"has-sizing-small\">The Bayesian seismic inversion is using seismic data, elastic properties of rocks and a mathematical model of the subsurface where properties of the rock in a small point only depend on properties in neighboring points (Markov model).<\/p>\n\n\n\t<div class=\"nr-spacer nr-spacer-small wp-block-nr-spacer\">\n\t<\/div>\n\t\n\n\n<h4 class=\"wp-block-heading\"><strong>Independent studies <\/strong><\/h4>\n\n\n\n<p>NR can conduct independent inversion studies using the PCube application, independently of GIG. These studies are often conducted in close collaboration with a client, enabling them to continue working independently once when project is completed.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<h3 class=\"wp-block-heading\">To learn more about the consortium, please contact:<\/h3>\n\n\n\t\t<div id=\"post-type-multi-block_528f836abe1cb51667b256c5b89050f5\" class=\"wp-block-post-type-multi type-manual style-card-bc_employee t2-grid\">\n\t\t\t\t\t\t\t<div class=\"t2-grid-item-col-12\">\n\t\t\t\t\t\t<a href=\"https:\/\/nr.stage.dekodes.no\/en\/employees\/heidi-kjonsberg\/\" class='card-employee'>\n\t\t\t\t\t<figure>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2024\/05\/heidi-kjonsberg-13.jpg\" alt=\"\">\n\t\t\t<\/figure>\n\t\t\t\t<div class=\"card-employee__content\">\n\t\t\t<p class=\"card-employee__name\">Heidi Kj\u00f8nsberg<\/p>\n\t\t\t\t\t\t\t<p class=\"card-employee__position\">Senior Research Scientist<\/p>\n\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" height=\"24\" width=\"24\" class=\"t2-icon t2-icon-arrowforward\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M15.9 4.259a1.438 1.438 0 0 1-.147.037c-.139.031-.339.201-.421.359-.084.161-.084.529-.001.685.035.066 1.361 1.416 2.947 3l2.882 2.88-10.19.02c-8.543.017-10.206.029-10.29.075-.282.155-.413.372-.413.685 0 .313.131.53.413.685.084.046 1.747.058 10.29.075l10.19.02-2.882 2.88c-1.586 1.584-2.912 2.934-2.947 3-.077.145-.085.521-.013.66a.849.849 0 0 0 .342.35c.156.082.526.081.68-.001.066-.035 1.735-1.681 3.709-3.656 2.526-2.53 3.606-3.637 3.65-3.742A.892.892 0 0 0 23.76 12a.892.892 0 0 0-.061-.271c-.044-.105-1.124-1.212-3.65-3.742-1.974-1.975-3.634-3.616-3.689-3.645-.105-.055-.392-.107-.46-.083\"\/><\/svg>\n\t\t<\/div>\n\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"t2-grid-item-col-12\">\n\t\t\t\t\t\t<a href=\"https:\/\/nr.stage.dekodes.no\/en\/employees\/torstein-maeland-fjeldstad\/\" class='card-employee'>\n\t\t\t\t\t<figure>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2024\/05\/torstein-maeland-fjeldstad-9.jpg\" alt=\"\">\n\t\t\t<\/figure>\n\t\t\t\t<div class=\"card-employee__content\">\n\t\t\t<p class=\"card-employee__name\">Torstein M\u00e6land Fjeldstad<\/p>\n\t\t\t\t\t\t\t<p class=\"card-employee__position\">Senior Research Scientist<\/p>\n\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" height=\"24\" width=\"24\" class=\"t2-icon t2-icon-arrowforward\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M15.9 4.259a1.438 1.438 0 0 1-.147.037c-.139.031-.339.201-.421.359-.084.161-.084.529-.001.685.035.066 1.361 1.416 2.947 3l2.882 2.88-10.19.02c-8.543.017-10.206.029-10.29.075-.282.155-.413.372-.413.685 0 .313.131.53.413.685.084.046 1.747.058 10.29.075l10.19.02-2.882 2.88c-1.586 1.584-2.912 2.934-2.947 3-.077.145-.085.521-.013.66a.849.849 0 0 0 .342.35c.156.082.526.081.68-.001.066-.035 1.735-1.681 3.709-3.656 2.526-2.53 3.606-3.637 3.65-3.742A.892.892 0 0 0 23.76 12a.892.892 0 0 0-.061-.271c-.044-.105-1.124-1.212-3.65-3.742-1.974-1.975-3.634-3.616-3.689-3.645-.105-.055-.392-.107-.46-.083\"\/><\/svg>\n\t\t<\/div>\n\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"t2-grid-item-col-12\">\n\t\t\t\t\t\t<a href=\"https:\/\/nr.stage.dekodes.no\/en\/employees\/carl-inge-colombo-nilsen\/\" class='card-employee'>\n\t\t\t\t\t<figure>\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/nr.stage.dekodes.no\/content\/uploads\/sites\/2\/2024\/10\/carl-inge-colombo-nilsen.jpg\" alt=\"\">\n\t\t\t<\/figure>\n\t\t\t\t<div class=\"card-employee__content\">\n\t\t\t<p class=\"card-employee__name\">Carl-Inge Colombo Nilsen<\/p>\n\t\t\t\t\t\t\t<p class=\"card-employee__position\">Senior Research Scientist<\/p>\n\t\t\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" height=\"24\" width=\"24\" class=\"t2-icon t2-icon-arrowforward\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M15.9 4.259a1.438 1.438 0 0 1-.147.037c-.139.031-.339.201-.421.359-.084.161-.084.529-.001.685.035.066 1.361 1.416 2.947 3l2.882 2.88-10.19.02c-8.543.017-10.206.029-10.29.075-.282.155-.413.372-.413.685 0 .313.131.53.413.685.084.046 1.747.058 10.29.075l10.19.02-2.882 2.88c-1.586 1.584-2.912 2.934-2.947 3-.077.145-.085.521-.013.66a.849.849 0 0 0 .342.35c.156.082.526.081.68-.001.066-.035 1.735-1.681 3.709-3.656 2.526-2.53 3.606-3.637 3.65-3.742A.892.892 0 0 0 23.76 12a.892.892 0 0 0-.061-.271c-.044-.105-1.124-1.212-3.65-3.742-1.974-1.975-3.634-3.616-3.689-3.645-.105-.055-.392-.107-.46-.083\"\/><\/svg>\n\t\t<\/div>\n\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\n\n\n<div class=\"wp-block-group has-primary-200-background-color has-background\">\n<p>Project: Geophysical Inversion to Geology (GIG)<\/p>\n\n\n\n<p>Partners: Equinor, V\u00e5r Energi, Total Energies, OMV, Conoco Phillips, Aker BP<\/p>\n\n\n\n<p>Funding: Equinor, V\u00e5r Energi, Total Energies, OMV, Conoco Phillips, Aker BP<\/p>\n\n\n\n<p>Period:  2016-<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#cdf1f1\">\n<p><strong>Software<\/strong><\/p>\n\n\n\n<p class=\"has-sizing-small\">The development work in GIG is implemented in a separate software application PCube. The application runs on Windows PCs in a separate graphical user interface or from Linux in a command line interface. The participants in the project have access to the PCube application and several of the sponsors use it in their daily work with seismic inversion. New methods and improvements in the PCube and PCube + algorithms, including PCube + 4D, are first developed and tested in the PCube application.<\/p>\n\n\n\n<p class=\"has-sizing-small\">The PCube + algorithm is also commercially available in the PSPro program provided by Sharp Reflections. Through a collaboration with GIG, Sharp Reflections has access to the source code of the algorithm.<\/p>\n\n\n\n<p class=\"has-sizing-small\">Several tools and methods are only available in the PCube application. In particular, this applies to tools for assessing the quality and robustness of the seismic inversion.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group\"><\/div>\n<\/div>\n<\/div>\n","protected":false},"featured_media":26246,"template":"","meta":{"_acf_changed":false,"_trash_the_other_posts":false,"editor_notices":[],"footnotes":""},"class_list":["post-26223","bc_project","type-bc_project","status-publish","has-post-thumbnail"],"acf":[],"_links":{"self":[{"href":"https:\/\/nr.stage.dekodes.no\/en\/wp-json\/wp\/v2\/bc_project\/26223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nr.stage.dekodes.no\/en\/wp-json\/wp\/v2\/bc_project"}],"about":[{"href":"https:\/\/nr.stage.dekodes.no\/en\/wp-json\/wp\/v2\/types\/bc_project"}],"version-history":[{"count":4,"href":"https:\/\/nr.stage.dekodes.no\/en\/wp-json\/wp\/v2\/bc_project\/26223\/revisions"}],"predecessor-version":[{"id":34969,"href":"https:\/\/nr.stage.dekodes.no\/en\/wp-json\/wp\/v2\/bc_project\/26223\/revisions\/34969"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nr.stage.dekodes.no\/en\/wp-json\/wp\/v2\/media\/26246"}],"wp:attachment":[{"href":"https:\/\/nr.stage.dekodes.no\/en\/wp-json\/wp\/v2\/media?parent=26223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}