Drilling choke

Details Drilling choke Drilling choke

F - Mech Eng,Light,Heat,Weapons

16

K

251/13

F16K 31/383 (2006.01)

Patent

CA 1209560

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 mov- able 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 constructions and assemblage. The portions of the valve subject to wear or flow ero- sion are also easily replaced when required. An indica- tor is arranged to signal incipient failure of the re- placeable parts of the valve in order that they may be replaced prior to the occurrence of a major failure.

441666

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