{"id":18027,"date":"2017-04-27T14:50:31","date_gmt":"2017-04-27T20:50:31","guid":{"rendered":"https:\/\/www.boartlongyear.com\/?p=18027"},"modified":"2026-06-04T12:58:50","modified_gmt":"2026-06-04T18:58:50","slug":"sonic-sampling-and-well-installation-heap-leach-pad","status":"publish","type":"post","link":"https:\/\/www.boartlongyear.com\/fr\/insite\/sonic-sampling-and-well-installation-heap-leach-pad\/","title":{"rendered":"Des d\u00e9chets \u00e0 la richesse: \u00e9chantillonnage sonique et installation de puits"},"content":{"rendered":"<section class=\"tcvpb_section_tc\">\n\t\t\n\t\t<div class=\"tcvpb_section_content\"><div class=\"tcvpb_container\"><div class=\"tcvpb_column_tc_span12\"><h1  ><span><span style=\"color: #000000;\">\u00c9chantillonnage sonique et installation d&#039;un puits de lixiviation en tas d&#039;or<\/span><\/span><\/h1><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section><section class=\"tcvpb_section_tc\">\n\t\t\n\t\t<div class=\"tcvpb_section_content\"><div class=\"tcvpb_container\"><div class=\"tcvpb_column_tc_span12\"><div  class=\"intro\" >\n<p class=\"p_tc\">Alors que la valeur des min\u00e9raux continue d&#039;augmenter sur le march\u00e9, les soci\u00e9t\u00e9s mini\u00e8res revisitent leurs plateformes de lixiviation en tas. Une aire de lixiviation en tas peut contenir une mine de min\u00e9raux \u00e0 d\u00e9couvrir. Boart Longyear Drilling Services a \u00e9t\u00e9 mandat\u00e9 pour mettre en \u0153uvre son programme sonique d&#039;\u00e9chantillonnage et d&#039;installation de puits dans des plateformes de lixiviation en tas cibl\u00e9es.<\/p>\n<\/div><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section><section class=\"tcvpb_section_tc\">\n\t\t\n\t\t<div class=\"tcvpb_section_content\"><div class=\"tcvpb_container\"><div class=\"tcvpb_column_tc_span6\"><div  class=\"\" >\n<p class=\"p_tc\">Les plates-formes de lixiviation en tas sont de grandes piles de r\u00e9sidus de roche provenant d&#039;une exploitation mini\u00e8re qui subissent un traitement suppl\u00e9mentaire via une solution de lixiviation pour \u00e9liminer le minerai de la roche. La solution de lixiviation est appliqu\u00e9e par le biais d&#039;un syst\u00e8me d&#039;irrigation ou d&#039;extincteur automatique au sommet de la plateforme de lixiviation en tas. La solution p\u00e9n\u00e8tre dans la plateforme de lixiviation en tas et s\u00e9pare le minerai des roches. Au bas du coussinet de lixiviation en tas se trouve une doublure imperm\u00e9able coud\u00e9e pour permettre \u00e0 la solution d&#039;\u00eatre collect\u00e9e dans un r\u00e9servoir puis d&#039;\u00eatre envoy\u00e9e pour un traitement suppl\u00e9mentaire.<\/p>\n<\/div><div  class=\"tcvpb-image\" ><img decoding=\"async\" src=\"https:\/\/d2xv4mcky152ra.cloudfront.net\/website-bly\/ls600-internal-rate-of-return.svg\"><\/div><span class=\"clear\" style=\"height:20px;display:block;\"><\/span><div  class=\"\" >\n<p class=\"p_tc\">En utilisant un de leurs <a href=\"https:\/\/www.boartlongyear.com\/fr\/drilling-services\/surface\/sonic\/\" target=\"_blank\" rel=\"noopener noreferrer\">sonique<\/a> rigs, le LS \u2122 600, Boart Longyear peut collecter des \u00e9chantillons hautement repr\u00e9sentatifs et obtenir une excellente r\u00e9cup\u00e9ration des \u00e9chantillons. Les tampons de lixiviation sont constitu\u00e9s principalement de mat\u00e9riaux non consolid\u00e9s et le LS600 s&#039;est av\u00e9r\u00e9 efficace dans ces conditions en produisant des \u00e9chantillons de carottes in situ pr\u00e9cis \u00e0 100%. La plate-forme est \u00e9galement utilis\u00e9e pour installer des puits dans le tampon de lixiviation en tas.<\/p>\n<\/div><h2  ><span>Le d\u00e9fi<\/span><\/h2><div  class=\"\" >\n<p class=\"p_tc\">Boart Longyear a \u00e9t\u00e9 mandat\u00e9 pour \u00e9chantillonner et installer des puits de solution pour la plus grande plateforme de lixiviation en or des \u00c9tats-Unis, situ\u00e9e dans le nord-ouest du Nevada. La plateforme de lixiviation en tas a plus de 400 pieds de hauteur. Pour atteindre cette hauteur, l\u2019op\u00e9ration de la mine a construit le remblai de lixiviation en tas au moyen de lev\u00e9es de 50 pieds.<\/p>\n<p class=\"p_tc\">Lors de la construction de chaque niveau, les remorqueurs \u00e9crasent et compressent in\u00e9vitablement la couche sup\u00e9rieure pr\u00e9c\u00e9dente du patin tout en ajoutant du mat\u00e9riau au sommet du pieu. Cela cr\u00e9e une couche dense qui provoque un effet de barrage et ne permet pas \u00e0 la solution de lixiviation de p\u00e9n\u00e9trer correctement \u00e0 travers la plateforme de lixiviation en tas. La plateforme de lixiviation en tas peut alors d\u00e9velopper des poches s\u00e8ches o\u00f9 aucune activit\u00e9 de lixiviation n&#039;a lieu - ce qui r\u00e9duit l&#039;efficacit\u00e9 et le retour sur investissement.<\/p>\n<\/div><\/div><div class=\"tcvpb_column_tc_span6 graysidecolumn tcvpb-inversed_text\" style=\"background-color:rgb(82, 88, 97);\"><div  class=\"\" >\n<table>\n<tbody>\n<tr>\n<td>Produit<\/td>\n<td><strong>Rig sonique LS \u2122 600<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Emplacement<\/td>\n<td><strong>Nord-ouest du Nevada<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Application<\/td>\n<td><strong><a href=\"https:\/\/www.boartlongyear.com\/fr\/drilling-services\/surface\/sonic\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u00c9chantillonnage sonique<\/a> et bien installation de la lixiviation en tas (or)<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><div  class=\"tcvpb_divider tcvpb_divider_solid\"><a href=\"#\" class=\"backtotop\"><\/a><\/div><div  class=\"tcvpb-image\" ><img decoding=\"async\" src=\"https:\/\/d2xv4mcky152ra.cloudfront.net\/website-bly\/ls600-image-and-map.png\"><\/div><span class=\"clear\" style=\"height:20px;display:block;\"><\/span><div  class=\"\" >\n<p class=\"p_tc\"><strong>Statistiques vitales&nbsp;<\/strong><\/p>\n<ul>\n<li>6 100 onces d&#039;or, 8 millions de dollars (1 300 dollars en moyenne par once), extraites d&#039;une plate-forme de lixiviation en tas au cours des 17 premiers mois.<\/li>\n<li>Le projet a \u00e9t\u00e9 pay\u00e9 dans les 70 premiers jours.<\/li>\n<li>Taux de rendement interne (TRI) de 400% pour le client.<\/li>\n<\/ul>\n<\/div><span class=\"clear\" style=\"height:20px;display:block;\"><\/span><div  class=\"tcvpb-image\" ><img decoding=\"async\" src=\"https:\/\/d2xv4mcky152ra.cloudfront.net\/website-bly\/ls600-heap-leach-illustration.svg\"><\/div><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section><section class=\"tcvpb_section_tc\">\n\t\t\n\t\t<div class=\"tcvpb_section_content\"><div class=\"tcvpb_container\"><div class=\"tcvpb_column_tc_span6\"><h2  ><span>La solution<\/span><\/h2><div  class=\"\" >\n<p class=\"p_tc\">Boart Longyear a \u00e9t\u00e9 embauch\u00e9 pour d\u00e9tecter les zones s\u00e8ches dans la plateforme de lixiviation et les r\u00e9activer via des puits d\u2019am\u00e9lioration de la solution. L\u2019\u00e9quipe Boart Longyear a d\u2019abord for\u00e9 des trous d\u2019essai afin de d\u00e9terminer les profondeurs des zones s\u00e8ches et les informations lithologiques sp\u00e9cifiques (caract\u00e9ristiques physiques du sol).<\/p>\n<p class=\"p_tc\">Ces trous de forage avaient une profondeur de 107 m\u00e8tres (350 pi) et \u00e9taient situ\u00e9s entre 15 et 23 m\u00e8tres (50 \u00e0 75 pi) au-dessus du rev\u00eatement de lixiviation en tas. Un \u00e9chantillon de noyau continu a \u00e9t\u00e9 obtenu en utilisant l&#039;appareil de forage sonique LS600. Cela a permis \u00e0 l&#039;\u00e9quipe Boart Longyear de d\u00e9terminer la concentration d&#039;humidit\u00e9 \u00e0 des profondeurs pr\u00e9cises et d&#039;identifier le minerai expos\u00e9.<\/p>\n<p class=\"p_tc\">&nbsp;\n<\/div><\/div><div class=\"tcvpb_column_tc_span6\"><div  class=\"tcvpb-image\" ><img decoding=\"async\" src=\"https:\/\/d2xv4mcky152ra.cloudfront.net\/website-bly\/ls600-heap-leach-cutaway.png\"><\/div><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section><section class=\"tcvpb_section_tc\">\n\t\t\n\t\t<div class=\"tcvpb_section_content\"><div class=\"tcvpb_container\"><div class=\"tcvpb_column_tc_span12\"><div  class=\"\" >\n<p class=\"p_tc\">Une fois que les profondeurs de minerai et les niveaux d&#039;humidit\u00e9 des zones s\u00e8ches ont \u00e9t\u00e9 indiqu\u00e9s, Boart Longyear a install\u00e9 des puits d&#039;am\u00e9lioration de la solution \u00e0 l&#039;aide d&#039;un tubage filet\u00e9 de 11,5 cm (4,5 in). Les tubages ont permis au forage de rester intact car un k-packer sup\u00e9rieur et inf\u00e9rieur ont \u00e9t\u00e9 install\u00e9s \u00e0 des profondeurs sp\u00e9cifiques. Un tamis d&#039;injection de 100 pieds a \u00e9t\u00e9 plac\u00e9 entre les k-packers pour diriger la solution de lixiviation dans des zones s\u00e8ches cibl\u00e9es.<\/p>\n<p class=\"p_tc\">Ce processus a \u00e9t\u00e9 r\u00e9p\u00e9t\u00e9 sur un cycle de huit semaines avec quatre semaines de solution et quatre semaines de repos. Une fois le cycle termin\u00e9, les k-packers et l&#039;\u00e9cran ont \u00e9t\u00e9 d\u00e9plac\u00e9s vers une nouvelle profondeur. Le puits recevrait la solution \u00e0 trois hauteurs, s\u2019\u00e9talant sur 100 pieds (fond, milieu et sommet).<\/p>\n<p class=\"p_tc\">Au cours d\u2019une p\u00e9riode de trois ans, l\u2019\u00e9quipe, \u00e0 l\u2019aide de la plate-forme sonique LS600, a for\u00e9 55 puits de solution \u00e0 \u00e9coulement par gravit\u00e9 afin de r\u00e9duire la quantit\u00e9 d\u2019or fin non trait\u00e9 de la plateforme de lixiviation en tas. Cela a donn\u00e9 6 100 onces d&#039;or, ce qui correspond \u00e0 8 millions de dollars (moyenne de 1 300 dollars par once). Le projet a \u00e9t\u00e9 amorti dans les 70 premiers jours et le client a re\u00e7u un taux de rendement interne (IRR) de 400%.<\/p>\n<\/div><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section><section class=\"tcvpb_section_tc boilerplate\">\n\t\t\n\t\t<div class=\"tcvpb_section_content\"><div class=\"tcvpb_container\"><div class=\"tcvpb_column_tc_span12\"><div  class=\"\" >\n<p class=\"p_tc\"><strong>LS600 Sonic Rig<\/strong><\/p>\n<p class=\"p_tc\">Le LS600 <a href=\"https:\/\/www.boartlongyear.com\/fr\/drilling-services\/surface\/sonic\/\" target=\"_blank\" rel=\"noopener noreferrer\">sonic rig<\/a> a la capacit\u00e9 de p\u00e9n\u00e9trer efficacement dans la roche semi-concass\u00e9e, les galets et l&#039;argile trouv\u00e9s sur les remblais de lixiviation en tas et dans les d\u00e9charges de mines. Les \u00e9chantillons LS600 sont pr\u00e9cis en profondeur et g\u00e9n\u00e9ralement for\u00e9s \u00e0 sec sans circulation de fluide afin de minimiser les risques de contamination crois\u00e9e des \u00e9chantillons. Cela cr\u00e9e un \u00e9chantillon pr\u00e9cis et continu avec une r\u00e9cup\u00e9ration proche de 100%, une d\u00e9viation des trous inf\u00e9rieure \u00e0 1%, une r\u00e9duction des d\u00e9chets pouvant atteindre 80% et une p\u00e9n\u00e9tration plus rapide que les m\u00e9thodes conventionnelles.<\/p>\n<p class=\"p_tc\">Les fr\u00e9quences sonores correspondent \u00e0 l&#039;\u00e9nergie de r\u00e9sonance du sol, permettant au noyau du canon d&#039;avancer dans des formations de morts-terrains non consolid\u00e9es et difficiles. Le LS600 peut atteindre des profondeurs allant jusqu&#039;\u00e0 182 m\u00e8tres (600 ft) tout en continuant de tuber le trou de forage. Cela fait du LS600 un choix optimal pour de nombreux march\u00e9s - exploitation mini\u00e8re, environnement, g\u00e9otechnique, construction, eau et exploitation mini\u00e8re.<\/p>\n<\/div><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section><section class=\"tcvpb_section_tc\">\n\t\t\n\t\t<div class=\"tcvpb_section_content\"><div class=\"tcvpb_container\"><div class=\"tcvpb_column_tc_span12\"><div  class=\"tcvpb_divider tcvpb_divider_solid\"><a href=\"#\" class=\"backtotop\"><\/a><\/div><div  class=\"calltoaction-largetext\" >\n<p class=\"p_tc\">Veut en savoir plus? En savoir plus sur <a href=\"https:\/\/www.boartlongyear.com\/fr\/drilling-services\/surface\/sonic\/\" target=\"_blank\" rel=\"noopener noreferrer\">Services de forage sonique<\/a><\/p>\n<\/div><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section><section class=\"tcvpb_section_tc\">\n\t\t\n\t\t<div class=\"tcvpb_section_content\"><div class=\"tcvpb_container\"><div class=\"tcvpb_column_tc_span12\"><div  class=\"medianote\" >\n<p class=\"p_tc\"><strong>Permission de m\u00e9dia:<\/strong> Boart Longyear vous autorise imm\u00e9diatement \u00e0 republier cet article. Nous vous demandons de citer Boart Longyear comme source et de fournir un lien le cas \u00e9ch\u00e9ant.<\/p>\n<\/div><\/div><\/div><\/div>\n\t\t\n\t\t\n\t<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":66,"featured_media":17853,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[138],"tags":[154,161,162],"class_list":["post-18027","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-operating-mine","tag-sonic","tag-ls600-sonic-rig","tag-heap-leach-pad","insitetype-case-study"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>From Waste Into Wealth: Sonic Sampling and Well Installation - Boart Longyear<\/title>\n<meta name=\"description\" content=\"Learn how Boart Longyear&#039;s sonic drilling services extracted 6,100 ounces of gold from a heap leach pad in the first 17 months.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.boartlongyear.com\/fr\/insite\/sonic-sampling-and-well-installation-heap-leach-pad\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"From waste into wealth: sonic sampling and well installation of gold heap leach pad\" \/>\n<meta property=\"og:description\" content=\"As the value of minerals continues to rise in the marketplace, mining companies are revisiting their heap leach pads. 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