Safety switch for explosive well tools
作者： Thomas J. Langston
DOI:
关键词:
摘要: In accordance with illustrative embodiments of the present invention as disclosed herein, a safety switch (13) for preventing accidental firing an explosive well tool includes tubular metal body (22) connected between cable head (14) and tool, conductor wire (48) extending through such carrying current from to contact plug (36) mounted in side opening (33) arranged be selectively advanced into shorting wire.
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