{"id":25675,"date":"2019-02-26T12:01:07","date_gmt":"2019-02-26T19:01:07","guid":{"rendered":"https:\/\/www.boartlongyear.com\/?p=25675"},"modified":"2026-06-09T09:56:12","modified_gmt":"2026-06-09T15:56:12","slug":"creating-value-through-superior-core","status":"publish","type":"post","link":"https:\/\/www.boartlongyear.com\/de\/insite\/creating-value-through-superior-core\/","title":{"rendered":"Australasian Drilling: Wertsch\u00f6pfung durch \u00fcberlegenen Kern"},"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\"><div  class=\"medianote\" >\n<p class=\"p_tc\">Diese Geschichte wurde urspr\u00fcnglich in ver\u00f6ffentlicht <a href=\"https:\/\/www.adia.com.au\/resources\/our-magazine-4\" target=\"_blank\" rel=\"noopener noreferrer\">Australasian Drilling Magazine<\/a> am 21. Februar 2019<\/p>\n<\/div><span class=\"clear\" style=\"height:15px;display:block;\"><\/span><h1  ><span><span style=\"color: #000000;\">Wert schaffen durch \u00fcberlegenen Kern<\/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\">Ein guter Qualit\u00e4tskern ist oft schwer zu finden. Von der anf\u00e4nglichen Einrichtung eines Laufs bis zur Platzierung in der Box beeinflussen viele Faktoren die endg\u00fcltige Kernprobe. Es ist wichtig, die h\u00e4ufigsten Fehler zu verstehen, um Fehler zu vermeiden, wo m\u00f6glich Fehler zu finden und bew\u00e4hrte Methoden anzuwenden, um einen qualitativ hochwertigen Kern zu erhalten, der sauber, beschriftet und genau ist.<\/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_span5\"><h3  ><span>Was kann schon schief gehen?<\/span><\/h3><div  class=\"\" >\n<p class=\"p_tc\">Sogar erfahrene Bohrer k\u00f6nnen beim Abrufen des Kerns Fehler machen. Vor der Kernwiederherstellung gibt es beim Bohren einige Faktoren, die sich negativ auf den Kern auswirken k\u00f6nnen, wie z. B. der verwendete Bohrmei\u00dfel und die Position der Bohrstelle. Wenn Sie zum Beispiel in einer weichen Formation wie Sand bohren, empfiehlt es sich, ein TT-Bit mit geschlossenem Zentrum zu verwenden, damit das Wasser den Kern nicht direkt ber\u00fchrt, bevor er in das Innenrohr gelangt. Auf diese Weise wird mehr Kern wiederhergestellt als mit einem Bit, das den Wasserkontakt mit Kernproben erm\u00f6glicht.<\/p>\n<\/div><\/div><div class=\"tcvpb_column_tc_span7\"><div  class=\"tcvpb-image\" ><a href=\"https:\/\/d3qsvy4hh6w8p5.cloudfront.net\/website-bly\/bly-newman-day-two-feb-2012-128_-2.jpg\" class=\"lightbox\" data-lightbox=\"image\"><img decoding=\"async\" src=\"https:\/\/d3qsvy4hh6w8p5.cloudfront.net\/website-bly\/bly-newman-day-two-feb-2012-128_-2.jpg\">\n\t\t\t<canvas class=\"grey-effect\"><\/canvas>\n\t\t\t\n\t\t<\/a><\/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\"><span class=\"clear\" style=\"height:15px;display:block;\"><\/span><div  class=\"\" >\n<p class=\"p_tc\">Ein weiterer Faktor ist der Kernverlust zu Beginn eines Durchlaufs, weil gebohrtes Material aus einem vorherigen Durchlauf zur\u00fcckgeblieben ist. Dieses Material rollt vor dem Bohrmei\u00dfel herum und bricht den Kern auf, wenn Bohrmaschinen versuchen, ihren neuen Lauf zu bohren.<\/p>\n<p class=\"p_tc\">Einer der wichtigsten Schritte, die Sie beachten sollten, ist die Platzierung des Kerns in der Box. Dies beinhaltet die Beschriftung, die Reihenfolge und die spezifische Richtung der Probe. Eine h\u00e4ufige Falle ist, sich nicht an die Bed\u00fcrfnisse des Kunden anzupassen. F\u00fcr ein Team kann es \u00fcblich sein, den Kern in eine bestimmte Richtung zu bringen, und es kann verwirrend sein, wenn der Kunde eine andere Platzierung verlangt. Wenn sich der Kern in der Box nach hinten befindet, ist es schwierig, die richtige Richtung zu entschl\u00fcsseln und die Informationen zu beeinflussen. Es ist wichtig, schnell die Erwartungen des Kunden zu lernen und die Teams entsprechend zu trainieren, um genaue repr\u00e4sentative Muster zu erstellen.<\/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\"><h3  ><span>Tipps zur Fehlerbehebung bei Core Recovery<\/span><\/h3><div  class=\"\" >\n<p class=\"p_tc\">Viele verschiedene Methoden tragen zu einer besseren Wiederherstellung des Kerns bei. Eine einfache \u00dcbung besteht darin, die L\u00e4nge der L\u00e4ufe zu verk\u00fcrzen. Wenn Sie beispielsweise f\u00fcnf-Fu\u00df-L\u00e4ufe als Standard f\u00fcr Ihre Schicht bohren und der Kern verloren geht, kann der Lauf verk\u00fcrzt werden. Dies f\u00fchrt zu einer geringeren Belastung des Kerns in die R\u00f6hre und die Erholung des Kerns wird zunehmen. Dies f\u00fchrt zu deutlich mehr L\u00e4ufen f\u00fcr den Tag und weniger Material pro Schicht, aber das Ziel, qualitativ hochwertige Kernproben zu behalten, wird eher erreicht.<\/p>\n<p class=\"p_tc\">Eine andere Praxis ist das Beschichten des Innenrohrs oder der Splits mit EZ-Mud\u00ae * oder Polymer, wodurch ein Teil des Kerns im Rohr verbleibt. Man kann nach jedem Lauf auch Enviroplug\u00ae * - oder Bentonit-Pellets in das Loch pumpen, wodurch ein Ton entsteht, der das gebrochene Gestein zusammenh\u00e4lt.<\/p>\n<\/div><\/div><div class=\"tcvpb_column_tc_span6\"><div  class=\"tcvpb-image\" ><a href=\"https:\/\/d3qsvy4hh6w8p5.cloudfront.net\/website-bly\/robert-jex-headshot.jpg\" class=\"lightbox\" data-lightbox=\"image\"><img decoding=\"async\" src=\"https:\/\/d3qsvy4hh6w8p5.cloudfront.net\/website-bly\/robert-jex-headshot.jpg\">\n\t\t\t<canvas class=\"grey-effect\"><\/canvas>\n\t\t\t\n\t\t<\/a><\/div><span class=\"clear\" style=\"height:15px;display:block;\"><\/span><h5  ><span><em><span style=\"font-size: 10pt;\">Robert Jex, Bereichsleiter - Coring, USA und Mexiko<\/span><\/em><\/span><\/h5><\/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\"><h3  ><span>Qualit\u00e4tskern abrufen<\/span><\/h3><div  class=\"\" >\n<p class=\"p_tc\">Ein Ansatz zum Wiederherstellen eines Qualit\u00e4tskerns ist die Verwendung von Splits in den Innenrohren. Beim Herauspumpen der Spalten bleibt der Kern intakt und erscheint genauso wie er im Boden war. Wenn der Kern in Boxen platziert wird, ist es weniger wahrscheinlich, dass er zerbricht, was zu einer saubereren Darstellung f\u00fchrt. Insgesamt bieten Splits eine konsistentere und repr\u00e4sentativere Kernprobe.<\/p>\n<p class=\"p_tc\">Beim Bohren mit einem Standard-HQ \u2122 -Kern sind Splits keine Option. Bohrer m\u00fcssen den Kern sorgf\u00e4ltig aus dem Innenrohr herausholen, ohne den Kern zu zerbrechen. Die Verwendung von H\u00e4mmern und anderen Werkzeugen wird nicht empfohlen, da sie dazu neigen, den Kern aufzubrechen, wodurch es schwierig wird, die Probe sauber in der Schachtel zu lagern. Stattdessen ist es effektiver, den Kern mit alternativen Methoden wie einem hydraulischen Pressensystem zu pumpen oder herauszudr\u00fccken.<\/p>\n<p class=\"p_tc\">Der Qualit\u00e4tskern h\u00e4ngt nicht nur vom Prozentsatz der Wiederherstellungsrate des Kerns ab, sondern ber\u00fccksichtigt auch, dass der Kern gewaschen, in den Karton gelegt und transportiert wird. Nachdem der Kern abgerufen wurde, k\u00f6nnen Kunden oftmals die Website besuchen, um die Kernprobe abzurufen. Oft liegt es jedoch in der Verantwortung des Unternehmens, den Kern zu transportieren. Die Teams m\u00fcssen sich des Potenzials bewusst sein, dass der Kern auf der Strecke bricht. Es ist wichtig, vorsichtig und langsam zu fahren und Unebenheiten auf der Stra\u00dfe zu vermeiden.<\/p>\n<p class=\"p_tc\">Es gibt kein Buch, das alle Erfahrungen des Lebens vermitteln kann. Jedes gebohrte Loch wird zu einer neuen Lebenserfahrung, die nicht in einem Lehrbuch festgehalten werden kann. Aufgrund der Erfahrung mit der Oberfl\u00e4chenbohrung gibt es viel zu lernen \u00fcber die Bedeutung des Qualit\u00e4tskerns, die beim Abrufen des Kerns aufgetretenen Schwierigkeiten und bew\u00e4hrte Verfahren f\u00fcr die Gewinnung von Qualit\u00e4tskernproben. Wenn jeder so viel wie ein Geologe w\u00fcsste, der den Kern wieder zusammensetzen w\u00fcrde, h\u00e4tte jeder im Feld konsistente Ergebnisse. Da dies nicht m\u00f6glich ist, ist es jedoch wichtig, bew\u00e4hrte Verfahren zu erlernen und gegebenenfalls Fehler zu beheben, um Quality Core auf einer konsistenten Basis wiederherzustellen.<\/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=\"\" >\n<p class=\"p_tc\"><em>* EZ-Mud ist eine eingetragene Marke von Baroid Industrial Drilling Products. Enviroplug ist eine eingetragene Marke von Wyo-Ben, Inc.<\/em><\/p>\n<p class=\"p_tc\"><em>Q ist eine Marke von Boart Longyear<\/em><\/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":25141,"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":[137],"tags":[386,387,388,389],"class_list":["post-25675","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-exploration","tag-quality-core","tag-experienced-drillers","tag-core-recovery","tag-core-retrieval","insitetype-field-experts"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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