Title:
PRESSURIZING STRUCTURE FOR DRILLING RIG AND DRILLING RIG
Document Type and Number:
WIPO Patent Application WO/2023/130568
Kind Code:
A1
Abstract:
Disclosed are a pressurizing structure for a drilling rig and a drilling rig. The drilling rig comprises a mast (1), a power head (2) slidably connected to the mast, and a pressurizing structure used for driving the power head. The pressurizing structure comprises a first pulley (4), a second pulley (7), a main winch, an auxiliary winch, a main winch steel wire rope (6) and an auxiliary winch steel wire rope (9). The first pulley is arranged at the top of the mast. The main winch comprises a main winch drum (5) located on one side of the mast. The main winch steel wire rope bypasses the first pulley in a direction away from the main winch drum and then is connected to the power head. The second pulley is arranged on the mast and located below the power head. The auxiliary winch comprises an auxiliary winding drum (8) arranged on a side surface of the mast. The auxiliary winch steel wire rope bypasses the second pulley in a direction away from the auxiliary winding drum and then is connected to the power head. The pressurizing structure arranged on the drilling rig has a simple structure and low cost, can avoid abrasions of steel wire ropes, and may implement multiple methods of construction.
Inventors:
LIU CHANG (CN)
WANG HAO (CN)
ZHANG SHIPING (CN)
WANG HAO (CN)
ZHANG SHIPING (CN)
Application Number:
PCT/CN2022/080588
Publication Date:
July 13, 2023
Filing Date:
March 14, 2022
Export Citation:
Assignee:
BEIJING SANY INTELLIGENT MANUFACTURING TECH CO LTD (CN)
International Classes:
E21B19/084
Foreign References:
| CN101440621A | 2009-05-27 | |||
| CN204060556U | 2014-12-31 | |||
| CN111963081A | 2020-11-20 | |||
| CN110984881A | 2020-04-10 | |||
| CN201770983U | 2011-03-23 | |||
| US4671365A | 1987-06-09 | |||
| GB1572639A | 1980-07-30 |
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
Download PDF: