Float Equipment

Forum float shoes and float collars are simple in design and operation. They have been engineered and manufactured to withstand the high temperatures and pressures created by differences in fluid columns when floating, landing, and cementing strings of casing.

Forum’s standard design float shoes and float collars are manufactured with the PVTS valve. This valve is a spring-actuated, plunger-type, one-way check valve. It is designed to withstand high temperatures and large volumes of fluids pumped at high flow rates. It also provides an effective seal under both high- and low-pressure conditions when casing is run and cemented in either the vertical or horizontal position.

The valve housing and closure element are made with a phenolic material. High strength concrete is the compound that molds the valve in the machined housing to form a strong singular unit. Despite the high compressive strength of the concrete, and the shear strength of the valve, Forum float shoes and collars are easily drilled with conventional or PDC bits.
Because of its proven performance qualities, the PVTS valve is used in all manual-fill float equipment including double-valve shoes and collars, and all inner-string cementing equipment including the tag-in, screw-in, and latch-in designs.

Since Forum float shoes and float collars are usually manufactured from steel that has a greater wall thickness than the pipe body of the casing string they are run in, they normally have burst and collapse resistance greater than the casing string.

500 Float Shoe

The Davis-Lynch™ 500 float shoe features PVTS check valves which will withstand 24 hours of circulating time with 12 ppg fluid at 10 bpm, and is rated to 5,000 psi back pressure at 400°F. Since Forum’s purchase of Davis-Lynch over 21,000 500 series float shoes have been run.

Applications
  • Conventional cement jobs onshore and offshore
Benefits
  • PDC drillable
  • PVTS check valve withstands long circulation time
  • High back-pressure rating at temperature
Features
  • Rounded cement nose
  • High quality PVTS plunger style check valve
  • Manual-fill
Options
  • Double valve
  • Eccentric nose
  • Needle nose
  • Lug nose
  • Up-jets
  • Auto-fill

500RM Reamer Shoe

The Davis-Lynch™ 500RM features PVTS check valves, milled angled ribs, and an eccentric round nose. Downjet
ports improve circulation, turbulence and even distribution for well cementing applications even in challenging conditions. Since Forum’s purchase of Davis-Lynch over 500 Reamer Shoes have been run.

Applications
  • Onshore and offshore wells with unstable formations
Benefits
  • Rotation and reciprocation capable, but not required
  • Provides superior performance to get casing down through unstable formations
  • Not a drill-shoe and will not make a new hole
  • PDC drillable
Features
  • Eccentric round nose
  • Non-aggressive milled ribs with hard-banding
  • Manual-fill
Options
  • No valve – guide shoe
  • Double valve
  • Composite nose
  • Auto-fill

501 Float Shoe

The Davis-Lynch™ 501 float shoe features PVTS check valves and standard cement noses and non-standard noses. Down-jet ports to improve circulation, turbulence and even distribution of fluid for well cementing
applications even in challenging conditions. Since Forum’s purchase of Davis-Lynch over 7,750 501 series float shoes have been run.

Applications
  • Conventional cement jobs onshore and offshore
Benefits
  • Boosts turbulence for cementing
  • Improves circulation for trouble spots
  • Helps wash casing to the bottom
  • Reduces risk of casing plugging
  • PDC drillable
Features
  • Rounded cement nose
  • Multiple down-jet ports
  • Manual-fill
Options
  • Double valve
  • Eccentric nose
  • Needle nose
  • Lug nose
  • Up-jets
  • Auto-fill

501DV Float Shoe

The Davis-Lynch™ 501DV float shoe features PVTS check valves and standard and non-standard cement noses.
Down-jet ports improve circulation, turbulence and even distribution of fluid for well cementing applications even in challenging conditions. Since Forum’s purchase of Davis-Lynch over 5,000 501DV float shoes have been run.

Applications
  • Conventional cement jobs onshore and offshore
Benefits
  • Provides more security than single valve optionse
  • Boosts turbulence for cementinge
  • Improves circulation for trouble spotse
  • Washes casing to the bottome
  • PDC drillable
Features
  • Rounded cement nosee
  • Multiple down-jet portse
  • Double valve design to maximize protectione
  • Manual-fill
Options
  • Eccentric nosee
  • Needle nosee
  • Lug nosee
  • Up-jetse
  • Auto-fill

501ECN Float Shoe

The Davis-Lynch™ 501ECN float shoe features PVTS check valves and an eccentric nose. Down-jet ports
improve circulation, turbulence and even distribution of fluid for well cementing applications even in challenging conditions. Since Forum’s purchase of Davis-Lynch over 3,000 501ECN float shoes have been run.

Applications
  • Challenging onshore and offshore hole conditions that necessitate a non-standard nose profile
Benefits
  • Rotates/bounces past ledges or obstructions
  • Nose design better navigates adverse conditions for running casing
  • Both aluminum and composite nose options are
PDC drillable
  • Improves circulation for trouble spots
  • Washes casing to the bottom
Features
  • Off-center slimmed nose design
  • Multiple down-jet ports
Options
  • Double valve
  • Up-jets
  • Aluminum or composite nose
  • Auto-fill

700 Float Collar

The Davis-Lynch™ 700 series float collar features PVTS check valves and is equipped with a flat cement surface for landing and sealing cement plugs. Since Forum’s purchase of Davis-Lynch over 24,000 700 series float collars have been run.

Applications
  • Conventional cement jobs onshore and offshore
Benefits
  • Superior cement plug sealing surface
  • PVTS check valve increases circulation time
  • High back-pressure rating at temperature
  • PDC drillable
Features
  • Load distributor plate for landing and sealing cement plugs
  • Box and pin connections standard
  • Manual-fill
Options
  • Double valve
  • Auto-fill

700X - DSEH Profile Float Collar

For subsurface launch applications, Forum has partnered with Schlumberger to provide the 700X – DSEH (Deep
Sea EXPRES* Head) Profile Float Collar. It features an engineered cement sheath that can house both a bottom and top DSEH plug that, once in place, prevents rotation during drill-out. Since Forum’s purchase of Davis-Lynch over 1,400 700X series float collars have been run.

Applications
  • Subsurface Schlumberger DSEH plug launch applications
Benefits
  • Provides anti-rotation for DSEH plugs
  • Faster drill-out times
  • PVTS check valve increases circulation time
  • High back-pressure rating at temperature
  • PDC drillable
Features
  • Cement Sheath for DSEH plugs
  • PVTS check valve
  • Manual-fill
Options
  • Double valve
  • Auto-fill capable