{"id":491,"date":"2026-02-17T20:01:17","date_gmt":"2026-02-17T20:01:17","guid":{"rendered":"https:\/\/aurelieng.fr\/?p=491"},"modified":"2026-02-17T20:01:17","modified_gmt":"2026-02-17T20:01:17","slug":"kingdom-how-to-import-sgy-with-a-different-crs","status":"publish","type":"post","link":"http:\/\/aurelieng.fr\/index.php\/2026\/02\/17\/kingdom-how-to-import-sgy-with-a-different-crs\/","title":{"rendered":"Kingdom: how to import sgy with a different CRS ?"},"content":{"rendered":"\n<p>mport a sgy file with a different coordinate system. However, Kingdom doesn&#8217;t support various CRS at the same time.<\/p>\n\n\n\n<p>The procedure is as follows: 1) import the sgy file containing the coordinates, 2) export the navigation (i.e. the world coordinates), 3) convert the coordinates, 4) delete the profile, 5) import the new nav, 6) import the sgy without coordinates.<\/p>\n\n\n\n<p>1) Import the sgy file: In kingdom, right click in the surveys pane and click import -> SEGY. <\/p>\n\n\n\n<p>In the windows that opens, select Import Multiple 2D SEG-Y Files with Coordinates<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-15.png\" alt=\"\" class=\"wp-image-886\"\/><\/figure>\n\n\n\n<p>Browse to your sgy file and click ok<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-16.png\" alt=\"\" class=\"wp-image-887\"\/><\/figure>\n\n\n\n<p>It&#8217;s supposed to be amplitudes, so just click ok<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-17.png\" alt=\"\" class=\"wp-image-888\"\/><\/figure>\n\n\n\n<p>By default, the shotpoint starts in Byte is set to 17, the X and Y coordinates are in bytes 73 and 77.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-18.png\" alt=\"\" class=\"wp-image-889\"\/><\/figure>\n\n\n\n<p>At this stage you must check whether these bytes are properly set. Open either SeismicExplore or SeiSee. In my case, there is nothing in byte 17 and the shot point can be set to byte 5.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-19.png\" alt=\"\" class=\"wp-image-890\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-20.png\" alt=\"\" class=\"wp-image-891\"\/><\/figure>\n\n\n\n<p>In the next window, you can also check whether the parameters are correct or not.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-21.png\" alt=\"\" class=\"wp-image-892\"\/><\/figure>\n\n\n\n<p>Then set the output format to 32-bit to get the best resolution possible.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-22.png\" alt=\"\" class=\"wp-image-893\"\/><\/figure>\n\n\n\n<p>At this stage, the profile is in the middle of nowhere (top left of the image below)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-23.png\" alt=\"\" class=\"wp-image-894\"\/><\/figure>\n\n\n\n<p>2) In the tree on the left, right click on the sgy profile and click on Export -&gt; World Coordinates<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-24.png\" alt=\"\" class=\"wp-image-895\"\/><\/figure>\n\n\n\n<p>Select Line Trace X Y and Tab delimited and click ok<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-25.png\" alt=\"\" class=\"wp-image-896\"\/><\/figure>\n\n\n\n<p>The file is a txt file that should look like this:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-26.png\" alt=\"\" class=\"wp-image-897\"\/><\/figure>\n\n\n\n<p>3) Convert the coordinates: In case you don&#8217;t know what the coordinate system is or you want to convert the system to your project, please refer to this article: <a href=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/?p=868\">https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/?p=868<\/a> and import the txt file in QGIS<\/p>\n\n\n\n<p>So, now you should have a collection of shotpoints (dots) along the profile at the right position in QGIS. However, the CRS is set to EPSG 5627 even if the QGIS project is set to EPSG 32631 (UTM 31 N)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-27-1024x627.png\" alt=\"\" class=\"wp-image-898\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-28.png\" alt=\"\" class=\"wp-image-899\"\/><\/figure>\n\n\n\n<p>In the processing toolbox, select reproject layer<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-30.png\" alt=\"\" class=\"wp-image-901\"\/><\/figure>\n\n\n\n<p>In the Target CRS, select the right CRS (obvious). Save the layer as a geopackage.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-32.png\" alt=\"\" class=\"wp-image-903\"\/><\/figure>\n\n\n\n<p>Once done, the new layer appears in the tree with the right CRS by default:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-33.png\" alt=\"\" class=\"wp-image-904\"\/><\/figure>\n\n\n\n<p>However, the Attribute Table still displays &#8220;Old coordinates&#8221; in EPSG 5627<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-34.png\" alt=\"\" class=\"wp-image-905\"\/><\/figure>\n\n\n\n<p>Click on Field Calculator. In the Output field name, type a filed name that correspond to you CRS, example: X_UTM31. In the expression space, type $x. It will extract all values of X in a new field. Click Apply. Then replace X by Y in both the output field name and in the expression and click Apply.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-36.png\" alt=\"\" class=\"wp-image-907\"\/><\/figure>\n\n\n\n<p>Now, your layer has 2 new fields containing X and Y coordinates in UTM31N. This will be your new Nav file<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-37.png\" alt=\"\" class=\"wp-image-908\"\/><\/figure>\n\n\n\n<p>Right click on the layer and click Export -&gt; Save features as&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-38.png\" alt=\"\" class=\"wp-image-909\"\/><\/figure>\n\n\n\n<p>Select Comma Separated Value (CSV) and in Layer option, choose Tab as Separator<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-39.png\" alt=\"\" class=\"wp-image-910\"\/><\/figure>\n\n\n\n<p>4) In Kingdom, delete the profile<\/p>\n\n\n\n<p>5) Import the new Nav: Right click in the Tree in a blank zone and select Management -&gt; create 2D. Give a name to your profile and then click ok.<\/p>\n\n\n\n<p>please also follow this article: <a href=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/?p=669\">https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/?p=669<\/a><\/p>\n\n\n\n<p>At this stage you can use the csv file as the navigation file. It should look like this:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-40.png\" alt=\"\" class=\"wp-image-911\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/paleturquoise-reindeer-331443.hostingersite.com\/wp-content\/uploads\/2025\/05\/image-41-1024x370.png\" alt=\"\" class=\"wp-image-912\"\/><\/figure>\n\n\n\n<p>ENJOY !<\/p>\n","protected":false},"excerpt":{"rendered":"<p>mport a sgy file with a different coordinate system. However, Kingdom doesn&#8217;t support various CRS at the same time. The procedure is as follows: 1) import the sgy file containing the coordinates, 2) export the navigation (i.e. the world coordinates), 3) convert the coordinates, 4) delete the profile, 5) import the new nav, 6) import&hellip;&nbsp;<a href=\"http:\/\/aurelieng.fr\/index.php\/2026\/02\/17\/kingdom-how-to-import-sgy-with-a-different-crs\/\" rel=\"bookmark\"><span class=\"screen-reader-text\">Kingdom: how to import sgy with a different CRS ?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[10],"tags":[22,35],"class_list":["post-491","post","type-post","status-publish","format-standard","hentry","category-tips-and-tricks","tag-kingdom","tag-seismic"],"_links":{"self":[{"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/posts\/491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/comments?post=491"}],"version-history":[{"count":1,"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/posts\/491\/revisions"}],"predecessor-version":[{"id":492,"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/posts\/491\/revisions\/492"}],"wp:attachment":[{"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/media?parent=491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/categories?post=491"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/aurelieng.fr\/index.php\/wp-json\/wp\/v2\/tags?post=491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}