Poppet valve

Patent · Tue Dec 15 04:00:00 EST 1987

OSTI ID:5323559

Stepp, L W; Giroux, R L

A float device for use in a well bore cementing operation, is described comprising: a casing equipment housing including a tubular section having an axial bore therethrough; a valve assembly axially disposed in the tubular section axial bore of the casing equipment housing, the valve assembly including: a unitary tubular valve body having a radially extending flange at the top exterior thereof defining a plug seat; a guide spider above the valve seat comprising radially oriented legs extending inwardly from the wall of the axial bore of the unitary tubular valve body to a central cylindrical collar having an axial stem bolt bore therethrough and a shoulder having, in turn, an upset extending upwardly therefrom; a valve poppet having an upwardly-facing valve surface of frustoconical configuration thereon disposed adjacent the valve seat sealingly engaging the generally frustoconical configuration thereof and having an elastomeric sheath over the frustoconical configuration of the upwardly-facing valve surface, the elastomeric sheath including a circumferentially-extending lip at the lower periphery thereof; a stem bolt secured to the valve poppet and extending upwardly through the stem bolt bore in the collar; a spring retention cap at the top of the stem bolt, and; a coil spring disposed about the stem bolt above the collar; and a cement sheath surrounding the valve assembly and substantially filling the annular void between the valve assembly and the wall of the tubular section bore of the casing equipment housing, the cement sheath having a top surface substantially flush with the plug seat on the valve body.

• Assignee: Halliburton Co., Duncan, OK
• Patent Number(s): US 4712619
• OSTI ID: 5323559
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CEMENTING
CONTROL EQUIPMENT
DESIGN
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
FLOW REGULATORS
NATURAL GAS WELLS
OIL WELLS
OPERATION
SLEEVES
VALVES
WELL COMPLETION
WELL INJECTION EQUIPMENT
WELLS