Stratigraphic multi-grade hydraulic hypocenter apparatus

A stratigraphic multi grade hydraulic hypocenter device is provided. A vibrating sleeve (7) cooperates slidably with an outer circle of a vibrating shaft (6). A journey cavity (5) is formed between a pressure pipe cylinder (4) and the vibrating shaft (6). A two grade pressure cavity (8) is formed be...

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Bibliographic Details
Main Author YULIN XU
Format Patent
LanguageEnglish
Published 05.02.2003
Edition7
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:A stratigraphic multi grade hydraulic hypocenter device is provided. A vibrating sleeve (7) cooperates slidably with an outer circle of a vibrating shaft (6). A journey cavity (5) is formed between a pressure pipe cylinder (4) and the vibrating shaft (6). A two grade pressure cavity (8) is formed between the lower portion of the vibrating sleeve (7) and the vibrating shaft (6). Injection ports (12.1, 12.2, 12.3, 12.4, 12) are provided on the A-A, B-B, C-C, D-D, F-F cross sections of the lower portion of the vibrating shaft (6) respectively. The upper end of the vibrating sleeve (7) is limited by a step in the pressure pipe cylinder (4). A hoisting short section (1) and a conversion joint (9) are provided on the upper and lower portion of the vibrating shaft (6) respectively, on which a centralizer (10) is fixed respectively. A spring (2) and a marble (3) are provided in the centralizer (10).
Bibliography:Application Number: CN2002224605U