Title:
DRILL SPEEDER AND DRILLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/196159
Kind Code:
A1
Abstract:
A drill speeder. The drill speeder is used for increasing the rotating speed of a drill bit in drilling operation and comprises: an upper joint (1) connected to a drill tool (200) in the drilling operation; a lower joint connected to the drill bit (300); and three wing plates (9) arranged on the outer surface of a gear sleeve (10) of the drill speeder in an equal division mode, and closely attached to pistons embedded on the gear sleeve (10). When the drill bit (300) conducts a speed increasing operation, a drilling slurry column in the drill speeder jacks up the pistons (8) on the gear sleeve (10), and the wing plates (9) are opened and attached to the well wall. The drill speeder further comprises a sun shaft (12) and planetary gears (4). The upper joint (1) is a planetary gear support provided with three support shafts in the axial direction of the drill tool, the support shafts are sleeved with the planetary gears (4), and the planetary gears (4) are engaged with a sun shaft gear and inner teeth of the gear sleeve (10) simultaneously, and the sun shaft (12) serves as the lower joint to be connected to the drill bit (300) and drives the drill bit (300) to conduct speed increasing rotation. A pawl (3) is provided on the upper joint (1). When the planetary gears (4) fail in transmission, the pawl (3) is inserted into a tooth groove of the sun shaft (12) to push the sun shaft (12) to rotate at the rotating speed of the drill tool. The drill speeder can increase the drilling speed of the drill bit to achieve the speed increasing effect.
More Like This:
Inventors:
WANG RUIQI (CN)
Application Number:
PCT/CN2018/086660
Publication Date:
October 17, 2019
Filing Date:
May 14, 2018
Export Citation:
Assignee:
WANG RUIQI (CN)
International Classes:
E21B4/02
Foreign References:
| CN201915846U | 2011-08-03 | |||
| CN101074596A | 2007-11-21 | |||
| CN104165026A | 2014-11-26 | |||
| CN106522827A | 2017-03-22 | |||
| CN101059061A | 2007-10-24 | |||
| US20170101844A1 | 2017-04-13 |
Attorney, Agent or Firm:
SHANGHAI BRIDGE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF:
Previous Patent: TRANSCODING TASK PROCESSING METHOD AND SYSTEM, AND TASK MANAGEMENT SERVER
Next Patent: UNIVERSAL TYPE HANDLE HAVING PROTECTIVE JACKET
Next Patent: UNIVERSAL TYPE HANDLE HAVING PROTECTIVE JACKET