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Small deep-sea multi-tube coring drilling rig

A small, deep-sea technology, applied in the direction of drill pipe, drill pipe, casing, etc., can solve the problems of low utilization rate of equipment, can not meet the requirements of multiple coring in deep-sea shallow holes, etc., and achieve high work efficiency, simple structure and reliability sex high effect

Inactive Publication Date: 2016-08-17
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above small deep-sea core drilling rigs are all single drill pipes, which can only take one core in one launch, and the equipment utilization rate is low, which cannot meet the requirements of multiple coring in deep-sea shallow holes.

Method used

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  • Small deep-sea multi-tube coring drilling rig
  • Small deep-sea multi-tube coring drilling rig
  • Small deep-sea multi-tube coring drilling rig

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Embodiment 1

[0025] Embodiment 1: The present invention provides a kind of deep-sea small multi-tube core drilling rig, its overall structure is as follows figure 1 shown. There are frame 4, feed oil cylinder 1, power head 3, drill pipe magazine 8 and drill pipe conversion mechanism 6; there are 5 drill pipes 9 in the drill pipe magazine, and the lower part of the drill pipe is connected with the drill bit 10 through threads.

[0026] The frame 4 is used for fixedly installing the feed cylinder 1 , the drill pipe conversion mechanism 6 and the drill pipe magazine 8 .

[0027] The cylinder piston rod 2 of the feed cylinder 1 is connected with the power head 3, the output shaft of the power head is connected with the extension pipe 5 through threads, and the end of the extension pipe is connected with the connector 7 through threads.

[0028] see figure 2 , the connector pin 13 is welded on the connector 7; two symmetrical L-shaped slots 14 are arranged on both sides of the upper part of ...

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Abstract

The invention relates to a small deep-sea multi-tube coring drilling rig which is equipment capable of being mounted on a deep-sea remotely-operated vehicle (ROV) or deep-sea human occupied vehicle (HOV) and other subsea equipment to obtain a seabed rock core through drilling and sampling. A feed oil cylinder, a power head, a drill rod bin and a drill rod conversion mechanism mounted on a rack are arranged on the drilling rig; the feed oil cylinder is connected with the power head through an oil cylinder piston rod; an output shaft of the power head is connected with a connecting head through an extension tube; the connecting head is connected with the drilling rig by using a clamping groove type quick plugging-connection structure; drill rods in the drill rod bin can be replaced by rotating the drill rod bin at a certain angle through the drill rod conversion mechanism. The drilling rig provided by the invention has advantages of compact structure, high reliability and high operation efficiency, can core multiple times at different operation points after entering water at a time, meets deep-sea shallow-hole coring operation requirements, and provides support for the investigation of deep-sea mineral resources.

Description

technical field [0001] The invention relates to a deep-sea small multi-tube core drilling rig, in particular to a deep-sea remote control vehicle (ROV) or a deep-sea manned vehicle (HOV) and other underwater equipment to obtain seabed by drilling and sampling. A rock core device belongs to the field of deep sea geological exploration. Background technique [0002] Deep-sea remotely operated vehicles (ROV) or deep-sea manned submersibles (HOV) play an important role in the investigation of deep-sea marine resources because of their flexibility, especially through their manipulators, they can grab rock and mineral samples on the seabed, but If you want to obtain rock mineral samples at a certain depth, you need to use a small core drilling rig to drill and sample. In the Chinese Invention Patent Application Specification CN 104594800 A, a carry-on deep-sea core drilling rig is disclosed; in the Chinese Invention Patent Application Specification CN 104481441 A, a small core sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B25/18E21B7/12E21B17/00E21B19/18E21B17/046
CPCE21B7/12E21B17/00E21B17/046E21B19/18E21B25/18
Inventor 李波张东霄邱琳琳赵海侗于彦江陈宗恒王锡霖丁腾飞张萌王亚光
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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