Pulsation dampener apparatus and method

Details Pulsation dampener apparatus and method Pulsation dampener apparatus and method

2005-04-05

2005-04-05

Hook, James (Department: 3754)

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

C175S135000

Reexamination Certificate

active

06874540

ABSTRACT:
A pulsation dampener apparatus and method for dampening pulses within a fluid flow line during well drilling operations. The pulsation dampener apparatus comprises a cylindrical body having an annular chamber, a piston slidably disposed within the annular chamber, a gas column within the annular chamber and a means of communicating pulses from the fluid flow line to the piston. The piston is operated against the gas column to dampen the pulses within the fluid flow line.

REFERENCES:
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patent: 3353613 (1967-11-01), Harrison
patent: 3570612 (1971-03-01), Slator
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patent: 4054040 (1977-10-01), Medders
patent: 4545444 (1985-10-01), Webb et al.
patent: 4683944 (1987-08-01), Curlett
patent: 4846273 (1989-07-01), Anderson et al.
patent: 6418970 (2002-07-01), Deul
patent: 6626248 (2003-09-01), Roberts

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