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Sidewall penetrator for oil wellsPenetrator bores horizontal holes in well casing to increase trapped oil drainage. Several penetrators operated by common drive are inserted into well at once. Shaft, made from spiraling cable, rotates and thrusts simultaneously through rigid curvilinear guide tube forcing bit through casing into strata. Device pierces more deeply than armor-piercing bullets and shaped explosive charges.
Document ID
19800000528
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Collins, E. R., Jr.
(Caltech)
Date Acquired
August 10, 2013
Publication Date
April 1, 1981
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 4
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
NPO-14306
Accession Number
80B10528
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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