Large diameter tubular lifting apparatus and methods,申请号GB20120000066-传众专利搜索

Large diameter tubular lifting apparatus and methods

申请公布号：GB2483605(A)

申请号：GB20120000066

申请日期：2010.06.22

申请公布日期：2012.03.14

申请人：

FRANK'S INTERNATIONAL, INC.

发明人：JEREMY RICHARD ANGELLE;LOGAN ESSEX SMITH

分类号：E21B19/06;B66C1/12

主分类号：E21B19/06

摘要：<p>A method to add a joint of pipe to a conductor string includes securing the conductor string with a spider, grasping an upper end of the joint of pipe with a segmented-ring elevator, engaging a plurality of slips of the elevator with an outer profile of the joint of pipe, raising the grasped joint of pipe from non- vertical to vertical, positioning the vertical joint of pipe atop the secured conductor string, attaching the joint of pipe to the conductor string, releasing the conductor string from the spider, and retaining the joint of pipe and the conductor string with the segmented-ring elevator.</p>