Well perforating gun and method

Patent · Tue Jul 04 04:00:00 EDT 1989

OSTI ID:5336933

Gill, B C

This patent describes a well perforating gun. It comprises: a tubular perforating gun body having a plurality of recesses formed therein positioned on a first helical path around the outer peripheral surface thereof. The recesses all being equally spaced one below another relative to the longitudinal axis of the gun body with each successive recess being laterally spaced from a preceding recess by an angle of about 150{sup 0} whereby the first and every second one of the recesses thereafter lie o a second helical path and are laterally spaced by an angle of about 60{sup 0}, and the first and every third one of the recesses thereafter lie on a third helical path and are laterally spaced by an angle of about 90{sup 0}; charge holder means comprising a single elongated hollow cylindrical charge holder disposed in the gun body for holding explosive charges therewithin which are selectively equal in number and in alignment with the first and every second recess thereafter, or equal in number and in alignment with the first and every third recess thereafter; a selected number of explosive charges held by the charge holder means. The interior ends of the charges being positioned on a line substantially coincident with the axis of the charge holder and having openings into which detonator means may be successively passed; and explosive charge detonator means extending within the gun body connected to the explosive charges through the openings in the charges.

• Assignee: Jet Research Center, Inc., Arlington, TX
• Patent Number(s): US 4844170
• Application Number: PPN: US 7-176112A
• OSTI ID: 5336933
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DESIGN
NATURAL GAS WELLS
OIL WELLS
PERFORATION
TOOLS
WELL COMPLETION
WELLS