Coverless press-craking bombs connected by core tube

The utility model relates to a coverless press-cracking bomb connected by a core tube, which is composed of an igniter, a core tube ignition connecting piece, a sealing protection piece and five to ten sections of screw threads for main charge. The utility model is characterized in that the coverles...

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Bibliographic Details
Main Authors REN YONGJIU, WU ZHONGMIN, GAO CHANGYOU
Format Patent
LanguageEnglish
Published 10.04.1996
Edition6
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:The utility model relates to a coverless press-cracking bomb connected by a core tube, which is composed of an igniter, a core tube ignition connecting piece, a sealing protection piece and five to ten sections of screw threads for main charge. The utility model is characterized in that the coverless press-cracking bomb connected by a core tube has no casing; the charge quantity of unit length is big; the adjustable coverless press-cracking bomb connected by a core tube of a pulse type can be combined according to the technological requirement of press cracking. The utility model not only is suitable for a shallow well, but also is suitable for a deep well or an ultradeep well. The coverless press-cracking bomb connected by a core tube has the advantage of simple structure, and can enhance the effect of press cracking substantially.
Bibliography:Application Number: CN1994211748U