Drilling rod power header device, circulation device and rig

A technology of circulation device and power head, which is applied to rotary drilling rigs, drilling tools, earthwork drilling and mining, etc., and can solve problems such as difficulty in drilling wells

Active Publication Date: 2022-08-05
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a drill pipe power head device, circulation device and drilling rig to solve the technical problem of difficulty in drilling and forming holes caused by the need to replace different drilling rigs for the same well in complex lithology areas

Method used

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  • Drilling rod power header device, circulation device and rig
  • Drilling rod power header device, circulation device and rig
  • Drilling rod power header device, circulation device and rig

Examples

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Effect test

Embodiment 1

[0062] The present invention provides a drill rod power head device, such as figure 1 , figure 2 and Figure 5 As shown, the drill pipe power head device includes a power mechanism 14 and a circulation device; the circulation device includes: a central pipe 5, an inner pipe 8 and an air intake pipe 18; the central pipe 5 is installed on the power mechanism 14, and the power mechanism 14 can drive the central pipe 5 Rotation; the inner tube 8 is arranged in the central tube 5, a first annular space 81 is arranged between the inner tube 8 and the central tube 5, and the upper end of the inner tube 8 is sealed with the inner wall of the central tube 5; The air 81 is connected; when the lower end of the central pipe 5 is connected to the positive circulation drill pipe, the central hole of the inner pipe 8 is communicated with the central hole of the positive circulation drill pipe; at the lower end of the central pipe 5 and the lower end of the inner pipe 8, the connection is r...

Embodiment 2

[0092] The present invention provides a circulation device, which is applied to the above-mentioned drill pipe power head device, such as figure 1 , figure 2 and Figure 5 As shown, the circulation device includes: a central pipe 5, an inner pipe 8 and an intake pipe 18; the inner pipe 8 is arranged in the central pipe 5, and a first annular space 81 is arranged between the central pipe 5 and the inner pipe 8; the intake pipe 18 Connected with the first annulus 81; when the lower end of the central pipe 5 and the lower end of the inner pipe 8 are connected to the reverse circulation drill pipe, the first annulus 81 is communicated with the drill pipe annulus of the reverse circulation drill pipe, and the inner pipe The central hole of 8 communicates with the central hole of the inner pipe of the reverse circulation drill pipe; when the lower end of the central pipe 5 is connected to the positive circulation drill pipe, the central hole of the inner pipe 8 is communicated wit...

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Abstract

The invention provides a drill pipe power head device, a circulation device and a drilling rig. The drill pipe power head device includes a power mechanism and a circulation device; the circulation device includes: a central pipe mounted on the power mechanism, and the power mechanism can drive the central pipe Rotation; an inner tube, which is arranged in the central tube, a first annulus is arranged between the inner tube and the central tube, and the upper end of the inner tube is sealingly matched with the inner wall of the central tube; an air intake pipe is communicated with the first annular space; in the center When the lower end of the pipe is connected to the positive circulation drill pipe, the central hole of the inner pipe is communicated with the central hole of the positive circulation drill pipe; when the lower end of the central pipe and the lower end of the inner pipe are connected to the reverse circulation drill pipe, the first ring The hollow is communicated with the drill pipe annulus of the reverse circulation drill pipe, and the central hole of the inner pipe is communicated with the inner pipe center hole of the reverse circulation drill pipe. The invention solves the technical problem of difficulty in drilling holes due to the need to replace different drilling rigs for the same well in complex lithology areas, and realizes an integrated forward and reverse circulation drilling rig.

Description

technical field [0001] The invention relates to the field of drilling equipment, in particular to a drill pipe power head device, a circulation device and a drilling rig. Background technique [0002] The exploration abundance in the basins where some oil fields are located has increased year by year, and the exploration scope has gradually expanded, radiating to the surrounding areas. Some basins are located at high latitudes and are extremely cold in winter, with the coldest temperature below -40°C. 75% of the surface is covered by volcanic rocks. The effects of multiple volcanic eruptions and the effects of weathering, denudation, and running water erosion cause great fluctuations and gullies. and river valley. The surface lithology is diverse, mainly composed of different types of volcanic lava, quicksand, sandy gravel, larger gravel and clay. [0003] The vertical and horizontal changes of the surface lithological structure of some basins are relatively complex, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B3/02E21B12/00
CPCE21B3/02E21B12/00
Inventor 王全义辛志多刘伟张伟李龙江丁洪文
Owner BC P INC CHINA NAT PETROLEUM CORP
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