Drilling choke

Details Drilling choke Drilling choke

1982-09-02

1984-07-24

Rosenthal, Arnold

Fluid handling

With leakage or drip collecting

137557, 251118, 251363, 251155, F16K 134, F16K 3700

Patent

active

044613164

ABSTRACT:
A fluid flow control valve especially adapted for use during well drilling operations as a drilling choke is disclosed. A replaceable ported seat and movable tubular flow control element cooperate to control flow through the angled body valve housing. The flow closure mechanism is operating fluid pressure balanced for ease of valve operation during extreme pressure working conditions. Internal flow control working parts of the valve are rugged in construction and assemblage. The portions of the valve subject to wear or flow erosion are also easily replaced when required. An indicator is arranged to signal incipient failure of the replaceable parts of the valve in order that they may be replaced prior to the occurrence of a major failure.

REFERENCES:
patent: 2108234 (1938-02-01), Raymond
patent: 2944856 (1960-07-01), Swanson
patent: 3027916 (1962-04-01), Smith

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