{"id":18152,"date":"2017-03-18T10:55:18","date_gmt":"2017-03-18T16:55:18","guid":{"rendered":"https:\/\/www.boartlongyear.com\/?p=18152"},"modified":"2025-03-10T14:12:24","modified_gmt":"2025-03-10T20:12:24","slug":"directional-drill-one-shot-depth","status":"publish","type":"post","link":"https:\/\/www.boartlongyear.com\/fr\/insite\/directional-drill-one-shot-depth\/","title":{"rendered":"Le forage directionnel atteint la profondeur en un seul passage: Services de forage"},"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;\">Les changements de forets atteignent la profondeur du trou de remplissage de p\u00e2te, diminuent en moyenne de 12.25%<\/span><\/span><\/h1><div  class=\"\" >\n<p class=\"p_tc\">Afin de maximiser l&#039;exploitation des mines souterraines, il est important de stabiliser les chantiers miniers avec du remblai. Cela permet \u00e0 l&#039;exploitation mini\u00e8re de continuer en toute s\u00e9curit\u00e9, car elle \u00e9vite les d\u00e9faillances de chantier dues \u00e0 un manque de support structurel.<\/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\"><h2  ><span>Vue d&#039;ensemble<\/span><\/h2><h5  ><span>Remplissage pour la capacit\u00e9 future<\/span><\/h5><div  class=\"\" >\n<p class=\"p_tc\">Northern Star Resources Limited r\u00e9compens\u00e9 <a href=\"https:\/\/www.boartlongyear.com\/fr\/drilling-services\/surface\/rotary\/\" target=\"_blank\" rel=\"noopener noreferrer\">Services de forage Boart Longyear<\/a> le travail de forage dirig\u00e9 pour d\u00e9velopper un trou de remplissage en p\u00e2te \u00e0 la mine d\u2019or Paulsens, situ\u00e9e dans le nord de l\u2019Australie occidentale.<\/p>\n<p class=\"p_tc\">Le trou de remplissage en p\u00e2te sert de syst\u00e8me d\u2019administration et permet \u00e0 un m\u00e9lange de ciment et de r\u00e9sidus miniers de ressembler \u00e0 une p\u00e2te pour remblayer les zones souterraines o\u00f9 ont eu lieu les travaux d\u2019extraction et de fouilles. Cela fournit un soutien suppl\u00e9mentaire au sol et la r\u00e9cup\u00e9ration des piliers, ce qui optimise l&#039;exploitation future des chambres adjacentes.<\/p>\n<\/div><h2  ><span>Le d\u00e9fi<\/span><\/h2><h5  ><span>Un bo\u00eetier de grand diam\u00e8tre et une cible de petit diam\u00e8tre facilitent les tirs en une passe<\/span><\/h5><div  class=\"\" >\n<p class=\"p_tc\">Le trou de remplissage de la p\u00e2te devait \u00eatre for\u00e9 \u00e0 un diam\u00e8tre de 310 millim\u00e8tres (12,25 pouces) pour pouvoir \u00eatre align\u00e9 int\u00e9rieurement sur toute sa longueur avec un tubage d&#039;un diam\u00e8tre de 203,2 millim\u00e8tres (8 pouces). En raison de l&#039;exigence inhabituelle d&#039;un trou plus grand, une foreuse d&#039;exploration mini\u00e8re ordinaire n&#039;a pas pu \u00eatre utilis\u00e9e.<\/p>\n<p class=\"p_tc\">La m\u00e9thode traditionnelle de forage de ce type de trou consiste \u00e0 percer d\u2019abord un trou pilote avec des forets au diamant, puis \u00e0 agrandir le trou \u00e0 l\u2019aide de <a href=\"https:\/\/www.boartlongyear.com\/fr\/drilling-services\/surface\/rotary\/\" target=\"_blank\" rel=\"noopener noreferrer\">forage rotatif<\/a> m\u00e9thodes sur une seconde - et potentiellement m\u00eame une troisi\u00e8me -. Cette m\u00e9thode peut n\u00e9cessiter jusqu&#039;\u00e0 45 \u00e0 50 \u00e9quipes pour compl\u00e9ter l&#039;exercice.<\/p>\n<p class=\"p_tc\">Un autre d\u00e9fi pour le foreur \u00e9tait de s\u2019assurer que le trou se croiserait \u00e0 l\u2019int\u00e9rieur de la cible de 5 m\u00e8tres (16,4 pieds) de diam\u00e8tre situ\u00e9e dans la zone de d\u00e9veloppement souterraine. Cela a cr\u00e9\u00e9 le besoin de lev\u00e9s concis et pr\u00e9cis sur la dur\u00e9e du forage directionnel. Signification: Boart Longyear devrait travailler avec un sp\u00e9cialiste tiers, Surtron Technologies, pour percer le trou de remplissage en p\u00e2te.<\/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>Client<\/td>\n<td><strong>Northern Star Resources<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Prestations de service<\/td>\n<td><strong><a href=\"https:\/\/www.boartlongyear.com\/fr\/drilling-services\/surface\/rotary\/\" target=\"_blank\" rel=\"noopener noreferrer\">Services de forage<\/a><\/strong><\/td>\n<\/tr>\n<tr>\n<td>Emplacement<\/td>\n<td><strong>Mine d&#039;or Paulsens, Australie occidentale<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Application<\/td>\n<td><strong>Trou de remplissage en p\u00e2te de forage dirig\u00e9 (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:\/\/www.boartlongyear.com\/wp-content\/uploads\/one-shot-pass-image.jpg\"><\/div><span class=\"clear\" style=\"height:20px;display:block;\"><\/span><div  class=\"\" >\n<p class=\"p_tc\"><strong>Statistiques vitales<\/strong><\/p>\n<ul>\n<li>Une passe unique a \u00e9t\u00e9 obtenue dans 39 \u00e9quipes de forage, contre 40 \u00e0 50 \u00e9quipes de fournisseurs de services ant\u00e9rieurs utilisant des m\u00e9thodes de passes multiples.<br><br><\/li>\n<li>Le trou de remplissage en p\u00e2te aidera le propri\u00e9taire \u00e0 r\u00e9aliser une valeur suppl\u00e9mentaire en or d\u2019environ 5 millions de dollars par niveau d\u2019extraction pour cette extraction de pilier particuli\u00e8re.<\/li>\n<\/ul>\n<\/div><div  class=\"tcvpb_divider tcvpb_divider_solid\"><a href=\"#\" class=\"backtotop\"><\/a><\/div><div  class=\"tcvpb-image\" ><img decoding=\"async\" src=\"https:\/\/www.boartlongyear.com\/wp-content\/uploads\/one-shot-pass-graph.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_span12\"><h2  ><span>La solution<\/span><\/h2><h5  ><span>Un forage r\u00e9gulier permet de r\u00e9aliser des lev\u00e9s r\u00e9guliers en atteignant la cible en un seul passage<\/span><\/h5><div  class=\"\" >\n<p class=\"p_tc\">En raison des grands trous requis, Boart Longyear a choisi d\u2019utiliser un <a href=\"https:\/\/www.boartlongyear.com\/fr\/drilling-services\/surface\/rotary\/\" target=\"_blank\" rel=\"noopener noreferrer\">foreuse de style puits d&#039;eau<\/a> avec la capacit\u00e9 d&#039;accueillir des gaines de grand diam\u00e8tre et une capacit\u00e9 de forage plus profonde gr\u00e2ce \u00e0 un puissant retrait de 130 000 livres.<\/p>\n<p class=\"p_tc\">Un surpresseur suppl\u00e9mentaire a \u00e9galement \u00e9t\u00e9 fourni car l&#039;ensemble du trou a \u00e9t\u00e9 for\u00e9 \u00e0 l&#039;aide de marteaux DTH conventionnels. Le surpresseur \u00e9tait essentiel pour maintenir l&#039;efficacit\u00e9 du marteau DTH et pour soulever et d\u00e9gager les d\u00e9bris du trou.<\/p>\n<p class=\"p_tc\">L&#039;\u00e9quipage de Boart Longyear a install\u00e9 la plate-forme et est devenu op\u00e9rationnel une semaine apr\u00e8s son arriv\u00e9e sur le chantier. Au d\u00e9but du forage, le trou a \u00e9t\u00e9 for\u00e9 et for\u00e9 avec un foret de 470 millim\u00e8tres (18\u00bd po) de diam\u00e8tre sur les 6 m\u00e8tres sup\u00e9rieurs (19,6 pi) avant de r\u00e9duire \u00e0 un diam\u00e8tre de 381 millim\u00e8tres (15 po). Ceci a \u00e9t\u00e9 progress\u00e9 \u00e0 une profondeur de 56 m\u00e8tres (183,7 pieds) avant que le trou ne soit \u00e0 nouveau bouch\u00e9. Le trou de fond a ensuite \u00e9t\u00e9 r\u00e9duit au diam\u00e8tre final de 310 millim\u00e8tres (12,25 pouces) et le forage a \u00e9t\u00e9 repris.<\/p>\n<p class=\"p_tc\">Au fur et \u00e0 mesure de l&#039;avanc\u00e9e du forage, Surtron Technologies et Boart Longyear ont proc\u00e9d\u00e9 r\u00e9guli\u00e8rement \u00e0 des lev\u00e9s multi-tirs qui ont ajust\u00e9 les param\u00e8tres de forage n\u00e9cessaires pour que la trajectoire du trou reste sur la cible.<\/p>\n<p class=\"p_tc\">\u00abC\u2019est formidable que Northern Star Resources Limited et Boart Longyear puissent s\u2019associer \u00e0 un programme bien planifi\u00e9 et ex\u00e9cut\u00e9 pour obtenir un r\u00e9sultat en utilisant une technique unique, mais \u00e9galement s\u00fbre et pr\u00e9cise\u00bb, a d\u00e9clar\u00e9 Bernie Sostak, directeur g\u00e9n\u00e9ral du d\u00e9veloppement commercial services techniques chez Northern Star Resources Limited. &quot;Les deux \u00e9quipes doivent \u00eatre f\u00e9licit\u00e9es pour leur r\u00e9ussite technique de haute qualit\u00e9.&quot;<\/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 op\u00e9rations de forage r\u00e9elles ont n\u00e9cessit\u00e9 un total de 39 \u00e9quipes de 12 heures pour atteindre la profondeur cible de 656 m\u00e8tres (2 152 pieds). Plus important encore, le trou a r\u00e9ussi \u00e0 croiser sa cible requise \u00e0 seulement 2 m\u00e8tres du centre. Le forage moyen \u00e9tait de 22,6 m\u00e8tres (74,14 pieds) par quart de travail, et le meilleur quart de travail unique a produit 90 m\u00e8tres (295,28 pieds) entre 428 et 518 m\u00e8tres de profondeur (1 404,2 \u00e0 1 699,5 pieds).<\/p>\n<p class=\"p_tc\">Des tractions r\u00e9guli\u00e8res de la tige ont \u00e9t\u00e9 effectu\u00e9es pour l&#039;inspection \/ le remplacement du tr\u00e9pan, ainsi que pour l&#039;arpentage du trou. Alors que les formations au sol devenaient plus dures, Boart Longyear a tir\u00e9 les tiges pour remplacer les forets et les marteaux DTH afin de fournir une combinaison optimis\u00e9e pour les conditions de forage.<\/p>\n<p class=\"p_tc\">\u00abC\u2019\u00e9tait l\u2019un des trous de sortie les plus r\u00e9ussis pour le remplissage de la p\u00e2te en surface auquel je sois associ\u00e9. Etant donn\u00e9 qu\u2019il a \u00e9t\u00e9 for\u00e9 en un seul passage, cela nous a permis d\u2019\u00e9conomiser non seulement du temps, mais \u00e9galement de l\u2019argent\u00bb, a ajout\u00e9 Sostak. \u00abLe trou a \u00e9t\u00e9 for\u00e9 \u00e0 656 m\u00e8tres (2 152 pi) de la surface et a \u00e9t\u00e9 intersect\u00e9 \u00e0 moins de 2,1 m\u00e8tres (6,9 pi) de la cible, ce qui \u00e9tait tr\u00e8s impressionnant.\u00bb<\/p>\n<p class=\"p_tc\">En utilisant une plate-forme semblable \u00e0 celle d&#039;un puits d&#039;eau, Boart Longyear a r\u00e9ussi \u00e0 obtenir un tir en une passe en 39 \u00e9quipes, aidant ainsi le propri\u00e9taire \u00e0 g\u00e9n\u00e9rer une valeur future en or d&#039;environ 5 millions de dollars par niveau d&#039;extraction pour cette extraction de pilier particuli\u00e8re.<\/p>\n<\/div><\/div><div class=\"tcvpb_column_tc_span6\"><blockquote  class=\"tcvpb_blockquote tcvpb_blockquote_style1\">\n\t\t\n\t\t\n<p class=\"p_tc\">\u00abC\u2019\u00e9tait l\u2019un des trous de sortie les plus r\u00e9ussis pour le remplissage de la p\u00e2te en surface auquel je sois associ\u00e9. Etant donn\u00e9 qu\u2019il a \u00e9t\u00e9 for\u00e9 en un seul passage, cela nous a permis d\u2019\u00e9conomiser non seulement du temps, mais \u00e9galement de l\u2019argent\u00bb, a ajout\u00e9 Sostak. \u00abLe trou a \u00e9t\u00e9 for\u00e9 \u00e0 656 m\u00e8tres (2 152 pi) de la surface et a \u00e9t\u00e9 intersect\u00e9 \u00e0 moins de 2,1 m\u00e8tres (6,9 pi) de la cible, ce qui \u00e9tait tr\u00e8s impressionnant.\u00bb<\/p>\n\n\t<\/blockquote><\/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\/rotary\/\" target=\"_blank\" rel=\"noopener noreferrer\">Services de forage rotatifs<\/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":18154,"comment_status":"closed","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":[2,170,173,174],"class_list":["post-18152","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-operating-mine","tag-drilling-services","tag-rotary","tag-paste-fill-hole","tag-water-well-rig","insitetype-case-study"],"acf":[],"canto_acf_fields":"","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Directional Drill Reaches Depth in One-Shot Pass: Drilling Services - Boart Longyear<\/title>\n<meta name=\"description\" content=\"Learn how using a directional drill for a paste fill hole decreased drill shifts by an average of 12.25 percent, achieving a one-shot pass.\" \/>\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\/directional-drill-one-shot-depth\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Directional drill reaches depth in one-shot pass: Drilling Services\" \/>\n<meta property=\"og:description\" content=\"In order to maximize mining underground, it is important to stabilize mined stopes with backfill. 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