Ray Oil Tool Co. Standard Float Shoes and Collars
Ray Oil Tool’s standard float shoes and float collars are simple in design and operation. They have been engineered and manufactured to withstand the high temperatures encountered and the high-pressures created by differences in fluid columns when floating, landing, and cementing strings of casing.
Ray Oil Tool’s standard design of standard float shoes and float collars are manufactured with the Ray Oil Tool 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, Ray Oil Tool float shoes and collars are easily drilled with conventional or PDC bits.
Because of its proven performance qualities, the Ray oil Tool valve is used in all standard Ray Oil Tool 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 Ray Oil Tool 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. Ray Oil Tool standard float shoes are available in:
Stab-In
Down Jet
Up Jet
Double valve
Centralized
Silver Bullet Nose
Eccentric/Mule Shoe Nose
Phenolic Nose
Stab-In
Data for Ray Oil Tool co. standard Float Equipment manufactured from K-55 grade material and threaded with API Round-8 or Buttress Connections
| Nominal casing Size (Inches) | Weight Range (Lbs/Ft) | O.D. (Inches) | I.D. (Inches) | Burst (PSI) | Collapse (PSI) |
| 4 1/2″ | 5.000 | 4.031 | 9,300 | 9,600 | |
| 5″ |  | 5.563 | 4.439 | 9,720 | 9,950 |
| 5-1/2″ | 14.0-23.0 | 6.050 | 4.950 | 8,750 | 9,050 |
| 7″ | 20.0-38.0 | 7.656 | 6.366 | 8,650 | 9,000 |
| 7-5/8″ | 20.0-39.0 | 8.500 | 6.969 | 8,650 | 9,000 |
| 8-5/8″ | 24.0-44.0 | 9.625 | 8.017 | 8,000 | 8,400 |
| 9-5/8″ | 32.3-53.5 | 10.625 | 8.921 | 7,700 | 8,100 |
| 10-3/4″ | 32.7-55.5 | 11.750 | 10.050 | 6,950 | 7,350 |
| 11-3/4″ | 38.0-65.0 | 12.750 | 11.000 | 6,600 | 7,000 |
| 13-3/8″ | 48.0-72.0 | 14.375 | 12.615 | 5,850 | 5,850 |
| 16″ | 65.0-109.0 | 17.000 | 15.250 | 4,950 | 4,250 |
| 18-5/8″ | 87.5-117.5 | 20.000 | 17.755 | 5,400 | 5,050 |
| 20″ | 94.0-133.0 | 21.000 | 19.125 | 4,250 | 3,150 |
Solutions are at hand; contact a Ray Oil Tool representative for the most advanced casing centralizer technology.