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US 2013/0075079 A1Published application
Frac head with sacrificial wash ring
AssigneeStinger Wellhead Protection, Inc.
InventorDanny Lee Artherholt
Life of this patent
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Abstract
A frac head with a sacrificial wash ring located above a mixing chamber protects a frac head body from erosion caused by abrasive frac fluids pumped through the frac head.
Claims20
A frac head, comprising:
- a frac head body having a top end with an axial port and an axial passage that extends through the axial port and the frac head body;
- at least two inlet ports that respectively provide a fluid communication path to the axial passage where fluid streams pumped through the respective inlet ports converge;
- and
- a sacrificial wash ring in the axial passage adjacent a bottom edge of the respective fluid communication paths, the sacrificial wash ring directing fluid streams pumped through the respective inlet ports into a mixing chamber located below the sacrificial wash ring.
1 more element
A frac head, comprising:
- a frac head body having a top end with an axial port and an axial passage that extends through the axial port and the frac head body;
- at least two inlet ports that respectively provide a fluid communication path to the axial passage;
- and
- a sacrificial wash ring in the axial passage at a bottom edge of the respective inlet ports, the sacrificial wash ring having a top surface that is inclined at an angle that is similar to an angle of inclination of the respective inlet ports so that frac fluid flows past a bottom edge of each fluid communication path, a cylindrical central surface that forces respective frac fluid streams to converge as they enter a mixing chamber below the sacrificial wash ring, and a bottom surface that is downwardly and outwardly inclined to permit the converging frac fluid streams to rapidly expand as they enter the mixing chamber.
1 more element
A frac head, comprising:
- a frac head body having a top end with an axial port and an axial passage that extends through the axial port and the frac head body;
- at least two inlet ports that respectively provide a fluid communication path to the axial passage;
- and
- a sacrificial wash ring in the axial passage at a bottom edge of the respective inlet ports, the sacrificial wash ring having a top surface and a bottom surface, the top surface being substantially parallel with a central axis of the frac head, and the bottom surface being inclined at an angle of about 45° with respect to the central axis of the frac head.
1 more element
Dependencies are inferred from the claim text.