The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 10, 2022

Filed:

Jan. 20, 2021
Applicant:

Hunan University of Science and Technology, Hunan, CN;

Inventors:

Yongping Jin, Hunan, CN;

Liang Liu, Hunan, CN;

Youduo Peng, Hunan, CN;

Buyan Wan, Hunan, CN;

Jun Gong, Hunan, CN;

Jian Yan, Hunan, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/12 (2006.01); E21B 4/00 (2006.01); E21B 25/04 (2006.01); E21B 25/18 (2006.01); E21B 10/02 (2006.01); E21B 17/042 (2006.01);
U.S. Cl.
CPC ...
E21B 7/12 (2013.01); E21B 4/003 (2013.01); E21B 4/006 (2013.01); E21B 25/04 (2013.01); E21B 25/18 (2013.01); E21B 10/02 (2013.01); E21B 17/0423 (2013.01); E21B 17/0426 (2013.01);
Abstract

The present disclosure provides a portable seafloor drill rig for a submersible for multi-point core drilling, including a power head, a reduction gear box, an emergency jettison device, a drilling tool, and a temperature and pressure-retaining device. a water supply connector and the power head are arrange on a top plate of the reduction gear box. An output shaft of the power head is connected to an input shaft of the reduction gear box, and an output shaft of the reduction gear box is provided with a central hole, which is in communication with a water inlet hole of the water supply connector. An output shaft of the reduction gear box is connected to the emergency jettison device, and the temperature and pressure-retaining device can perform temperature and pressure-retaining storage of the core drilled by the drilling tool.


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