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Guide control device and rotary guide drilling tool

A technology of steering control and control rod, applied in directional drilling, photovoltaic power generation, etc., can solve the problems of complex control process, and achieve the effect of high control accuracy and simple operation process

Active Publication Date: 2021-11-02
CHINA UNIV OF PETROLEUM (BEIJING) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above technical solution, the adjustment of the azimuth angle and the structural angle needs to control the motion state of each group of adjustment mechanisms at the same time, and the control process is complicated.

Method used

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  • Guide control device and rotary guide drilling tool
  • Guide control device and rotary guide drilling tool
  • Guide control device and rotary guide drilling tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] figure 1 A front view of a guidance control device provided for a possible embodiment of the present invention; figure 2 Another perspective front view of the guide control device provided for a possible embodiment of the present invention; image 3 for figure 2 Enlarged view of B; Figure 4 for figure 2 A-A sectional view of ; Figure 5 for figure 1 Schematic diagram of the structure of the fourth spur internal gear; Image 6 for figure 1 Schematic diagram of the structure at the center adjustment panel; Figure 7 for figure 1 Schematic diagram of the movable plate in the middle; Figure 8 for figure 1 Schematic diagram of the structure of the mid-slip shoe; Figure 9 for figure 1 Schematic diagram of another angle structure at the center adjustment disc; Figure 10 for figure 1 Schematic diagram of the structure of the sliding joint; Figure 11 for figure 1 Schematic diagram of the structure of the control rod.

[0053] refer to Figure 1-Figure 1...

Embodiment approach

[0074] In a further possible implementation, the azimuth adjustment mechanism includes an azimuth drive member 110 and an azimuth transmission assembly, the azimuth transmission assembly is connected between the shaft sleeve 130 and the azimuth drive member, and the azimuth drive member drives the shaft sleeve 130 to rotate through the azimuth transmission assembly; the inclination angle The adjustment mechanism includes an inclination driving member 120 and an inclination transmission assembly, the inclination transmission assembly is connected between the movable disk 131 and the inclination driving member 120, and the inclination driving member 120 drives the movable disk 131 to swing through the inclination transmission assembly.

[0075] The azimuth adjustment mechanism and the inclination adjustment mechanism are provided with their own driving parts and transmission components to achieve their own independent control, which is convenient for separate manipulation, and the...

Embodiment 2

[0095] Figure 12 A front view of a rotary steerable drilling tool provided for another possible embodiment of the present invention.

[0096] refer to Figure 12 As shown, another possible embodiment of the present invention provides a rotary steering drilling tool 20, including a second housing 200, a control rod 220, a valve core wedge 232, a drill bit guiding tool 240 and the above-mentioned steering control device 10, The second housing 200 is open at both ends and is hollow. The second housing 200 supports the second end of the first housing 100 connected to the guiding control device 10 .

[0097] The second housing 200 is provided with a support ring 210 close to the first housing 100. The support ring 210 supports and connects the shaft sleeve 130 of the guide control device 10 through bearings, and the support ring 210 is provided with a control hole, and a control rod is inserted in the control hole. 220 , the first end of the control rod 220 is connected to the s...

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Abstract

The invention provides a guide control device and a rotary guide drilling tool. The guide control device comprises an adjusting disc, an azimuth adjusting mechanism, an inclination angle adjusting mechanism and a sliding connection piece; the adjusting disc comprises a shaft sleeve and a movable disc; the movable disc is arranged on the outer side of the shaft sleeve in a sleeving mode; a connecting piece is arranged between the movable disc and the shaft sleeve; the azimuth adjusting mechanism is connected with the shaft sleeve and drives the shaft sleeve to rotate; the inclination angle adjusting mechanism moves along with the shaft sleeve and is connected to a first disc face of the movable disc; the inclination angle adjusting mechanism drives the movable disc to swing around a set radial line; the sliding connection piece is in sliding connection with the movable disc and relatively slides on the movable disc in the circumferential direction of the shaft sleeve; and a second sliding groove used for being connected with a control rod is formed in the sliding connection piece and extends in the radial direction of the shaft sleeve. The azimuth adjusting mechanism and a structural angle adjusting mechanism are arranged, and the control process is simple and stable.

Description

technical field [0001] The invention relates to the technical field of steering control, in particular to a steering control device and a rotary steering drilling tool. Background technique [0002] Rotary steerable drilling technology enables the rotary steerable system to flexibly adjust the well inclination and azimuth by setting the bottom-hole offset mechanism, which is especially suitable for the drilling of complex 3D wells and extended-reach wells. High-precision trajectory control also ensures the quality and safety of drilling Sex is greatly improved. Among them, the directional rotary steerable drilling system is widely used because of its smooth borehole, high wellbore quality and safety. [0003] Chinese patent CN113073939A discloses a push-in rotary steerable drilling tool, which includes a housing body, an adjustment mechanism, a hydraulic drive mechanism, an adjustment wedge, an adjustment rod and a drill seat. Three sets of adjustment mechanisms, hydraulic...

Claims

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Application Information

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IPC IPC(8): E21B7/04
CPCE21B7/04Y02E10/50
Inventor 柳贡慧陈添李军查春青汪伟
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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