Split nut in blowout preventer

Patent · Tue Mar 11 04:00:00 EST 1986

OSTI ID:5717468

Bednarz, J W

An improved split nut is described for use in a blowout preventer on a well, a. the well including b. a well bore extending downward within the earth and having a bore bottom, c. a well casing extending downward within the well bore, d. a well head atop the casing above ground surface, e. the blowout preventer being installed on the well head, and including f. a preventer body having a preventer bore therethrough, fluidly connected to the well bore, g. opposed carriages horizontally slidably mounted within the preventer body, h. at least one pair of threaded actuating screws journaled within the preventor body adjacent the carraiges and the preventer bore, i. a slot in each carriage adjacent one of the actuating screws, j. ears adjacent each of the slots, and k. each of the split nuts having l. a nut base, m. a nut cap, n. a threaded nut bore adapted to threadably receive the actuacting screw therethrough, o. nut flanges extending from each nut base, adapted to slidably engage the slot ears when the nut base is positioned in the slot.

• Assignee: NOV; EDB-86-106461
• Patent Number(s): US 4574881
• OSTI ID: 5717468
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
BLOWOUT PREVENTERS
DESIGN
FABRICATION
FASTENERS
FASTENING
FLANGES
INSTALLATION
JOINING
JOINTS
NATURAL GAS WELLS
OIL WELLS
THREADED JOINTS
WELL CASINGS
WELLHEADS
WELLS