Title:
VERTICAL SHAFT DRILLING RIG USING NOVEL DRILLING METHOD
Document Type and Number:
WIPO Patent Application WO/2015/139486
Kind Code:
A1
Abstract:
A vertical shaft drilling rig using a novel drilling method, mainly comprising a derrick (1) and a mouth sealing flatcar (4) installed at the wellhead, and further comprising a drilling pipe (5), a flexible connector (6), a steady pressure device (7), a torque amplification driver (8), a cutter head (9), a slag removal system (10), a slurry treatment station (3), an electrical cabinet (14), a hydraulic station (13), and a power pipeline (11); a main drive (2) is mounted on the derrick; the lower part of the main drive is connected to the drilling pipe; the drilling pipe is provided with the flexible connector, the lower end of the drilling pipe is connected to the torque amplification driver; the lower end of the torque amplification driver is connected to the cutter head; the steady pressure device is mounted outside the torque amplification device; the slag dug up by the cutter head in the shaft is delivered to the slurry treatment station on the surface. The drilling rig improves overall stability, increases pressure of the device and drilling torque, and provides more accurate guidance, thus improving efficiency of vertical shaft construction, shortening the period of vertical shaft construction and improving the quality of the completed well.
Inventors:
LI JIANBIN (CN)
KLEUTERS NIKON (CN)
ZHAO HUA (CN)
ZHANG NINGCHUAN (CN)
XIAO WEI (CN)
ZHUO XINGJIAN (CN)
WANG DUJUAN (CN)
JIA LIANHUI (CN)
DONG YANPING (CN)
ZHOU QIAN (CN)
KLEUTERS NIKON (CN)
ZHAO HUA (CN)
ZHANG NINGCHUAN (CN)
XIAO WEI (CN)
ZHUO XINGJIAN (CN)
WANG DUJUAN (CN)
JIA LIANHUI (CN)
DONG YANPING (CN)
ZHOU QIAN (CN)
Application Number:
PCT/CN2014/093410
Publication Date:
September 24, 2015
Filing Date:
December 09, 2014
Export Citation:
Assignee:
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD (CN)
International Classes:
E21D1/06
Foreign References:
| CN103899316A | 2014-07-02 | |||
| CN203822310U | 2014-09-10 | |||
| JPH1088961A | 1998-04-07 | |||
| JPH06294275A | 1994-10-21 | |||
| CN201184126Y | 2009-01-21 | |||
| JPH08326465A | 1996-12-10 |
Attorney, Agent or Firm:
ZHENGZHOU YUNDUN INTELLCTUAL PROPERTY AGENCY CO., LTD. (CN)
郑州优盾知识产权代理有限公司 (CN)
郑州优盾知识产权代理有限公司 (CN)
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