Central control type seabed multi-head continuous sampling drilling machine

A sampling drilling rig, multi-head technology, applied in rotary drilling rigs, rotary drilling, impact drilling and other directions, can solve problems such as low sampling efficiency, and achieve the effect of improving efficiency, compact structure and small core disturbance

Active Publication Date: 2022-02-01
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a centrally controlled multi-head continuous sampling drilling rig to solve the technical problem of low sampling efficiency when existing drilling rigs are operating in the prior art; the preferred technology among the many technical solutions provided by the present invention The many technical effects that the scheme can produce are detailed in the following

Method used

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  • Central control type seabed multi-head continuous sampling drilling machine
  • Central control type seabed multi-head continuous sampling drilling machine
  • Central control type seabed multi-head continuous sampling drilling machine

Examples

Experimental program
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Effect test

Embodiment 1

[0065] The wireline coring method in the prior art is that during the drilling process, when the core is filled with the core tube, there is no need to lift the drill pipe out of the hole, but the inner hole of the drill pipe is used as a channel, with the help of rope and special fishing tools A core drilling method that lifts the core stored in the core tube inside the drill pipe to the hole position during the drilling process. Since there is no need to lift the drill pipe out of the hole, the tripping time of the drilling tool is greatly reduced. The core tube is used as the inner tube in the drill pipe, and the core tube is pulled out from the drill pipe when the core is filled with the core tube.

[0066] Such as Figure 1-Figure 16 As shown, the present embodiment provides a centrally controlled subsea multi-head continuous sampling drilling rig, including a drilling rig 100 with a drilling tool moving mechanism 2 and a power drilling mechanism 1 for driving a drill pi...

specific Embodiment approach

[0071] see figure 2 and image 3 As shown, the drilling tool storage mechanism of this embodiment includes four, and the four drilling tool storage mechanisms are arranged at intervals and arranged around the central drilling tool moving mechanism 2, so that the drilling tool moving mechanism 2 rotates at 360° The drill pipe 200 and the core pipe 300 in different positions in the four drilling tool storage mechanisms can be grasped at the same time, the structure is compact, and the internal space of the drilling machine is fully utilized.

[0072] Specifically, the drilling tool storage mechanism of the present embodiment includes a drilling library 30, see image 3 and Figure 4 As shown, the radial section of the drill storehouse 30 is fan-shaped, and the center of the fan-ring is located on the central axis of the drilling machine 100. The drill storehouse 30 includes a connected upper plate 31, a chassis 32 and two or more transmission plates 33, wherein: see figure...

Embodiment 2

[0081] This embodiment is an improvement made on the basis of the above-mentioned embodiments. In this embodiment, a specific implementation of the drilling tool moving mechanism 2 is provided. See figure 2 and Figure 6 , Figure 7 As shown, the drilling tool moving mechanism 2 of this embodiment includes a central column 20, a driving device 21 located on the central column 20, an upper rotating cylinder 22, a lower rotating cylinder 23 and a gripper assembly 24, wherein: the gripper assembly 24 The upper and lower ends of the upper and lower ends are respectively connected with an upper rotating cylinder 22 and a lower rotating cylinder 23, and the lower rotating cylinder 23 is sleeved on the lower end of the upper rotating cylinder 22, such as Figure 7 As shown, the driving end of the driving device 21 is connected to the upper rotating cylinder 23, and is used to drive the handle assembly 24 to rotate 360° with the center column 20 as the axis; the handle assembly 24 i...

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Abstract

The invention provides a central control type seabed multi-head continuous sampling drilling machine which solves the problem that the sampling efficiency is low when a drilling machine works. The drilling machine comprises a drilling machine body, the drilling machine body is provided with a drilling tool transporting mechanism, two or more power drilling mechanisms used for driving drilling rods to drill downwards and drilling tool storage mechanisms used for storing the drilling rods and core barrels, the drilling tool storage mechanisms are arranged around the central axis of the drilling machine body, and one power drilling mechanism is arranged between every two adjacent drilling tool storage mechanisms; and the drilling tool transporting mechanism is located in the center of the drilling machine body and can rotate by 360 degrees with the central axis of the drilling machine body as a rotating shaft, and the drilling tool transporting mechanism can grab all the drilling rods and the core barrels at different positions in the drilling tool storage mechanism in the rotating process and transports the drilling rods and the core barrels between the corresponding power drilling mechanism and the corresponding storage mechanism. The internal space of the drilling machine is fully utilized, the number of the power drilling mechanisms is two or more, more drilling tools can be carried for sea operation, and the single-time sampling operation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of drilling rig equipment, in particular to a centrally controlled submarine multi-head continuous sampling drilling rig. Background technique [0002] There are extremely rich mineral resources in the seabed crust, including oil, natural gas hydrate, polymetallic nodules, cobalt-rich crusts, etc. The development of seabed resources can effectively alleviate the shortage of global resources. Seabed sampling equipment is an important tool for marine geology and environmental science It is the necessary technical equipment for research and exploration of marine mineral resources and seabed engineering geological survey. According to different sampling depth requirements, a variety of seabed sampling equipment has been developed. Among them, the submarine coring rig is a drilling equipment whose drilling system works completely on the seabed. Compared with shallow sampling equipment, it has the advantages of d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/12E21B15/02E21B19/14E21B19/10E21B3/02E21B25/02E21B25/18E21B31/20
CPCE21B7/12E21B15/02E21B19/143E21B19/10E21B3/022E21B25/02E21B25/18E21B31/20
Inventor 刘永升阳志远胡远彪云霄夏建新杨甘生吕建国
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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