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Title:
INTEGRATED APPARATUS AND METHOD FOR LONG-DISTANCE DOWNHOLE DRILLING AND FRACTURING
Document Type and Number:
WIPO Patent Application WO/2019/169734
Kind Code:
A1
Abstract:
Disclosed is an integrated apparatus and a method for long-distance downhole drilling and fracturing. The apparatus comprises a drill bit (06), a fracturing rod (05), a protective rod (04), a hole sealing rod (03), a high-pressure sealing drill rod (02) and a crawler drilling machine rod-feeding device (01), which are successively connected to each other end to end. In the method, while drilling, the drill rod (02), the fracturing rod (05), etc. are delivered to a designated position; a high-pressure water hole is provided in the crawler drilling machine rod-feeding device (01) so that high-pressure water enters the drill rod (02) through the high-pressure water hole and reaches the fracturing site, and fracturing is finished; and then, the drill rod (02) is withdrawn, only using a crawler drilling machine, from one fracturing hole to another fracturing point, and a hole-sealing operation is simultaneously carried out.

Inventors:
HUANG, Bingxiang (No. 1, Daxue Road Tongsha, Xuzhou Jiangsu 6, 221116, CN)
LI, Haoze (No. 1, Daxue Road Tongsha, Xuzhou Jiangsu 6, 221116, CN)
CHEN, Shuliang (No. 1, Daxue Road Tongsha, Xuzhou Jiangsu 6, 221116, CN)
Application Number:
CN2018/086474
Publication Date:
September 12, 2019
Filing Date:
May 11, 2018
Export Citation:
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Assignee:
CHINA UNIVERSITY OF MINING AND TECHNOLOGY (No. 1, Daxue Road Tongsha, Xuzhou Jiangsu 6, 221116, CN)
International Classes:
E21B7/18; E21B43/26
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (12th FL.-B, No. 179 Zhongshan Road Gulo, Nanjing Jiangsu 5, 210005, CN)
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