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Gear rack coal bed methane drilling rig hoisting system

A rack-and-pinion and lifting system technology, which is applied to drill pipes, drill pipes, drilling equipment, etc., can solve the problems of difficult maintenance, low mechanical efficiency, and inability to pressurize the drill bit, so as to achieve easy installation and maintenance, safe and reliable work , the effect of improving work efficiency

Inactive Publication Date: 2013-11-20
CNPC BOHAI EQUIP MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of the existing drilling rigs, such as complex structure, difficult maintenance, short service life, low mechanical efficiency, and inability to pressurize the drill bit.

Method used

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  • Gear rack coal bed methane drilling rig hoisting system
  • Gear rack coal bed methane drilling rig hoisting system
  • Gear rack coal bed methane drilling rig hoisting system

Examples

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Effect test

Embodiment Construction

[0014] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a rack and pinion coalbed methane drilling rig lifting system includes a top drive device, a sliding device and a rack 2; the rack 2 is welded on the derrick 1 of the rack and pinion drilling rig, and the four cylindrical gears 8 on the sliding device Engaged with the rack 2; the sliding device is composed of a sliding car body 4, a guide pulley 5, a gear part, a hydraulic motor and a reducer 6, the sliding car body 4 includes a sliding frame 10, and a power faucet is welded on the sliding frame 10 for fixing The ear plate 9 and the lifting system valve plate frame 11, the lifting system valve plate 12 is welded on the lifting system valve plate frame 11, during the drilling operation, the lifting system valve plate 12 carries the hydraulic pipeline up and down with the lifting system Move; the guide pulley 5 is composed of a combination bearing 13 and a combination b...

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Abstract

The invention relates to the technical field of coal bed methane drilling rig operation, in particular to a gear rack coal bed methane drilling rig hoisting system. A rack of the system is welded to a headframe of a gear rack drilling rig. Four cylindrical gears on a sliding device are meshed with the rack. The sliding device is composed of a sliding cart body, a guide pulley, a gear component, a hydraulic motor and a reducer. The sliding cart body comprises a sliding cart frame. A power water faucet fixing lug plate and a hoisting system valve plate frame are welded on the sliding cart frame. A hoisting system valve plate is welded on the hoisting system valve plate frame. The guide pulley is composed of a combined bearing and a combined bearing flange. The combined bearing is connected with the combined bearing flange in a welding mode. The gear rack coal bed methane drilling rig hoisting system can apply pressure on a drill bit on the lower portion of a drilling rod, improves working efficiency, enables the structure of the whole drilling rig to be simple and compact, brings convenience to installation and maintenance, and is safe and reliable in work.

Description

Technical field: [0001] The invention relates to the technical field of coalbed methane drilling operations, in particular to a rack and pinion coalbed methane drilling rig lifting system. Background technique: [0002] In the current coalbed methane drilling operation, the lifting system of a conventional drilling rig mainly includes a winch, a wire rope, a crown block and a traveling block. The main problem with conventional drilling rigs is that during horizontal drilling, only the weight of the drill string exerts pressure on the drill bit, which causes the drilling rig to start drilling horizontal wells in shallow layers. Moreover, the structure is complicated, the equipment is various, the maintenance is difficult, the service life is short, the mechanical efficiency is low, and the drill bit cannot be pressurized. Invention content: [0003] The technical problem to be solved by the present invention is to provide a rack and pinion coalbed methane drilling rig lift...

Claims

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Application Information

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IPC IPC(8): E21B15/00E21B19/083
Inventor 任福深赵京坤李军王晶程晓哲
Owner CNPC BOHAI EQUIP MFG
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