Workover well control. Part 6. Choke devices, mud system aid well control

Journal Article · Mon Oct 12 04:00:00 EDT 1981 · Oil Gas J.; (United States)

OSTI ID:5474162

Adams, N

The primary type of choke now used in well control is the steel adjustable-orifice choke; its advent enabled pressure control in almost all conceivable situations. Such chokes can tolerate any kind of kick fluid for long periods of time and, if necessary, at high pressures. The two most common steel chokes are the Swaco (which consists of two tungsten-carbide plates with ''half-moon'' orifices) and the Cameron (which uses a rod-and-cylinder system to develop the desired backpressure). Some of the important considerations in testing blowout-preventer stacks are the test fluids, pressures, equipment, procedures, and frequency. The mud-mixing system should be designed to handle a rapid increase in mud density in order to initiate kick-killing procedures. The mixing system's main components are the mixing pumps and the hopper.

• OSTI ID: 5474162
• Journal Information: Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 79; ISSN OIGJA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
BLOWOUT PREVENTERS
CONTROL
CONTROL SYSTEMS
DENSITY
DRILLING
DRILLING FLUIDS
FLUIDS
NATURAL GAS WELLS
PHYSICAL PROPERTIES
PRESSURE CONTROL
WELL DRILLING
WELLS