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Power rat hole device applicable to butting strings of well drilling platforms

A drilling platform and mouse hole technology, which is applied to drill pipes, drilling equipment, drill pipes, etc., can solve the problems of complex structure, installation height of lifting mechanism, and large space occupation, and achieves small layout space, simple and novel design, and structure. simple effect

Inactive Publication Date: 2015-09-23
HUBEI JOINHAND CONSTR MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its technical characteristics are: the installation height of the lifting mechanism takes up a lot of space and the structure is complex

Method used

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  • Power rat hole device applicable to butting strings of well drilling platforms
  • Power rat hole device applicable to butting strings of well drilling platforms
  • Power rat hole device applicable to butting strings of well drilling platforms

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] This embodiment provides a kind of power rathole device suitable for the docking of drilling platform pipe string, such as Figure 4~Figure 6 Shown, comprise laying platform 10, mouse hole pipe, drill pipe lifting table, mouse hole pipe mouth place is provided with clamping mechanism.

[0027] The rathole pipe includes three sections of upper, middle and lower rathole pipes. The upper rathole pipe 11 is installed on the derrick girder 9 to bear the dead weight of the drill pipe and the lower steel pipe; the upper and lower ends of the middle rathole pipe 12 pass through the flange respectively. Connect with locating pin with upper mouse hole pipe 11, lower mouse hole pipe 13. Segmented rathole tubing reduces transport length.

[0028] The clamping mechanism is installed at the top opening of the upper mouse hole pipe 11, such as Figure 7 As s...

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Abstract

The invention belongs to the field of drilling and production equipment, and particularly discloses a power rat hole device applicable to butting strings of well drilling platforms. The power rat hole device comprises a laying table, a rat hole scabbard and a drilling pipe lifting table. A clamping mechanism is arranged at an opening of the rat hole scabbard and comprises a mounting seat and a pair of clamping cylinders, the clamping cylinders are horizontally oppositely arranged in the mounting seat, each clamping cylinder can drive a corresponding clamping head, and the two clamping heads are of complementary Y-shaped structures; a hole is formed in the mounting seat, and a drilling pipe can penetrate the hole; the drilling pipe lifting table is mounted at the tail end of the rat hole scabbard, two lifting mechanisms of a fixing seat are mounted on an lower rat hole scabbard and can drive the drilling pipe lifting table to ascend and descend, each lifting mechanism comprises a pulley block, a steel wire rope and a telescopic adjusting cylinder, one end of each steel wire rope is connected with a lug plate of the drilling pipe lifting table, the other end of each steel wire rope is wound through the corresponding pulley block and then is fixed to a wedge-shaped connector on the fixing seat, and movable pulleys in the pulley blocks can be pushed and pulled by the telescopic adjusting cylinders. The power rat hole device has the advantages that three-joint unit connection operation and drilling operation can be simultaneously carried out, and the power rat hole device is applicable to drilling pipes with different lengths.

Description

technical field [0001] The invention belongs to the field of drilling and production equipment, in particular to a power rathole device suitable for butt jointing of drilling platform pipe strings. Background technique [0002] The erecting operation and the drilling operation in the traditional drilling rig cannot be carried out at the same time, and the drilling operation can only be interrupted when the erecting is performed. After the conventional rat hole occurred subsequently, although the erecting operation and the drilling operation could be carried out simultaneously, they could only be applied to fixed-length drill pipes. [0003] Most of the existing drill pipe clamping mechanisms adopt the form of "oil cylinder + connecting rod mechanism", such as figure 1 shown. This kind of clamping method is that under the push (pull) action of the same side or symmetrical cylinder, the connecting rod mechanism acts to hold the drill pipe tightly or loosen it. Its technical...

Claims

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Application Information

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IPC IPC(8): E21B19/14
Inventor 康东文万正兵程伟曾毅
Owner HUBEI JOINHAND CONSTR MACHINERY
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