公开(公告)号：US20080236892A1

公开(公告)日：2008-10-02

申请号：US12057893

申请日：2008-03-28

Applicant: ANDREA JULIA EWALD

Inventor： ANDREA JULIA EWALD

IPC: E21B7/28

CPC classification number: E21B7/201 ,  E21B7/28

Abstract: In a method for multistage manufacture of a borehole between two earth shafts, a drilling device drills in a first direction a pilot bore between a starting shaft and an end shaft and lines the pilot bore with pipes. Subsequently, the pilot bore is expanded in a second direction opposite to the first direction to form an expansion bore which is simultaneously lined with pipes, while accumulating soil is transported into the end shaft in opposition to the second direction with the aid of a screw conveyor.

Abstract translation: 在用于在两个地球轴之间多井制造钻孔的方法中，钻井装置在起始轴和端轴之间沿第一方向钻一个导向孔，并且用管道将导向管孔排出。 随后，导向孔在与第一方向相反的第二方向上膨胀以形成同时衬有管的膨胀孔，同时借助于螺旋输送器将积累的土壤与第二方向相反地输送到端轴中 。

公开(公告)号：US07891439B2

公开(公告)日：2011-02-22

申请号：US12057893

申请日：2008-03-28

Applicant: Andrea Julia Ewald

Inventor： Andrea Julia Ewald

IPC: E21D1/06 ,  E21B7/28

CPC classification number: E21B7/201 ,  E21B7/28

Abstract: In a method for multistage manufacture of a borehole between two earth shafts, a drilling device drills in a first direction a pilot bore between a starting shaft and an end shaft and lines the pilot bore with pipes. Subsequently, the pilot bore is expanded in a second direction opposite to the first direction to form an expansion bore which is simultaneously lined with pipes, while accumulating soil is transported into the end shaft in opposition to the second direction with the aid of a screw conveyor.

Abstract translation: 在用于在两个地球轴之间多井制造钻孔的方法中，钻井装置在起始轴和端轴之间沿第一方向钻一个导向孔，并且用管道将导向管孔排出。 随后，导向孔在与第一方向相反的第二方向上膨胀以形成同时衬有管的膨胀孔，同时借助于螺旋输送器将积累的土壤与第二方向相反地输送到端轴中 。